Merge tag 'ib-mfd-regmap-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into regmap-irq-hdr

Immutable branch between MFD and Regmap due for v4.3

473 files changed, 1916 insertions, 1441 deletions

diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt
index b80606de545a..f59c43b6411b 100644
--- a/Documentation/gpio/board.txt
+++ b/Documentation/gpio/board.txt
@@ -21,8 +21,8 @@ exact way to do it depends on the GPIO controller providing the GPIOs, see the
 device tree bindings for your controller.
 
 GPIOs mappings are defined in the consumer device's node, in a property named
-<function>-gpios, where <function> is the function the driver will request
-through gpiod_get(). For example:
+either <function>-gpios or <function>-gpio, where <function> is the function
+the driver will request through gpiod_get(). For example:
 
         foo_device {
                 compatible = "acme,foo";
@@ -31,7 +31,7 @@ through gpiod_get(). For example:
                             <&gpio 16 GPIO_ACTIVE_HIGH>, /* green */
                             <&gpio 17 GPIO_ACTIVE_HIGH>; /* blue */
 
-                power-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+                power-gpio = <&gpio 1 GPIO_ACTIVE_LOW>;
         };
 
 This property will make GPIOs 15, 16 and 17 available to the driver under the
@@ -39,15 +39,24 @@ This property will make GPIOs 15, 16 and 17 available to the driver under the
 
         struct gpio_desc *red, *green, *blue, *power;
 
-        red = gpiod_get_index(dev, "led", 0);
-        green = gpiod_get_index(dev, "led", 1);
-        blue = gpiod_get_index(dev, "led", 2);
+        red = gpiod_get_index(dev, "led", 0, GPIOD_OUT_HIGH);
+        green = gpiod_get_index(dev, "led", 1, GPIOD_OUT_HIGH);
+        blue = gpiod_get_index(dev, "led", 2, GPIOD_OUT_HIGH);
 
-        power = gpiod_get(dev, "power");
+        power = gpiod_get(dev, "power", GPIOD_OUT_HIGH);
 
 The led GPIOs will be active-high, while the power GPIO will be active-low (i.e.
 gpiod_is_active_low(power) will be true).
 
+The second parameter of the gpiod_get() functions, the con_id string, has to be
+the <function>-prefix of the GPIO suffixes ("gpios" or "gpio", automatically
+looked up by the gpiod functions internally) used in the device tree. With above
+"led-gpios" example, use the prefix without the "-" as con_id parameter: "led".
+
+Internally, the GPIO subsystem prefixes the GPIO suffix ("gpios" or "gpio")
+with the string passed in con_id to get the resulting string
+(snprintf(... "%s-%s", con_id, gpio_suffixes[]).
+
 ACPI
 ----
 ACPI also supports function names for GPIOs in a similar fashion to DT.
@@ -142,13 +151,14 @@ The driver controlling "foo.0" will then be able to obtain its GPIOs as follows:
 
         struct gpio_desc *red, *green, *blue, *power;
 
-        red = gpiod_get_index(dev, "led", 0);
-        green = gpiod_get_index(dev, "led", 1);
-        blue = gpiod_get_index(dev, "led", 2);
+        red = gpiod_get_index(dev, "led", 0, GPIOD_OUT_HIGH);
+        green = gpiod_get_index(dev, "led", 1, GPIOD_OUT_HIGH);
+        blue = gpiod_get_index(dev, "led", 2, GPIOD_OUT_HIGH);
 
-        power = gpiod_get(dev, "power");
-        gpiod_direction_output(power, 1);
+        power = gpiod_get(dev, "power", GPIOD_OUT_HIGH);
 
-Since the "power" GPIO is mapped as active-low, its actual signal will be 0
-after this code. Contrary to the legacy integer GPIO interface, the active-low
-property is handled during mapping and is thus transparent to GPIO consumers.
+Since the "led" GPIOs are mapped as active-high, this example will switch their
+signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped
+as active-low, its actual signal will be 0 after this code. Contrary to the legacy
+integer GPIO interface, the active-low property is handled during mapping and is
+thus transparent to GPIO consumers.
diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt
index a206639454ab..e000502fde20 100644
--- a/Documentation/gpio/consumer.txt
+++ b/Documentation/gpio/consumer.txt
@@ -39,6 +39,9 @@ device that displays digits), an additional index argument can be specified:
                                           const char *con_id, unsigned int idx,
                                           enum gpiod_flags flags)
 
+For a more detailed description of the con_id parameter in the DeviceTree case
+see Documentation/gpio/board.txt
+
 The flags parameter is used to optionally specify a direction and initial value
 for the GPIO. Values can be:
 
diff --git a/Documentation/hwmon/nct6775 b/Documentation/hwmon/nct6775
index f0dd3d2fec96..76add4c9cd68 100644
--- a/Documentation/hwmon/nct6775
+++ b/Documentation/hwmon/nct6775
@@ -32,6 +32,10 @@ Supported chips:
     Prefix: 'nct6792'
     Addresses scanned: ISA address retrieved from Super I/O registers
     Datasheet: Available from Nuvoton upon request
+  * Nuvoton NCT6793D
+    Prefix: 'nct6793'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+    Datasheet: Available from Nuvoton upon request
 
 Authors:
         Guenter Roeck <linux@roeck-us.net>
diff --git a/Documentation/static-keys.txt b/Documentation/static-keys.txt
index f4cb0b2d5cd7..477927becacb 100644
--- a/Documentation/static-keys.txt
+++ b/Documentation/static-keys.txt
@@ -15,8 +15,8 @@ The updated API replacements are:
 
 DEFINE_STATIC_KEY_TRUE(key);
 DEFINE_STATIC_KEY_FALSE(key);
-static_key_likely()
-statick_key_unlikely()
+static_branch_likely()
+static_branch_unlikely()
 
 0) Abstract
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 7ba7ab749c85..274f85405584 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6452,11 +6452,11 @@ F:	drivers/hwmon/ltc4261.c
 LTP (Linux Test Project)
 M:      Mike Frysinger <vapier@gentoo.org>
 M:      Cyril Hrubis <chrubis@suse.cz>
-M:      Wanlong Gao <gaowanlong@cn.fujitsu.com>
+M:      Wanlong Gao <wanlong.gao@gmail.com>
 M:      Jan Stancek <jstancek@redhat.com>
 M:      Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
 M:      Alexey Kodanev <alexey.kodanev@oracle.com>
-L:      ltp-list@lists.sourceforge.net (subscribers-only)
+L:      ltp@lists.linux.it (subscribers-only)
 W:      http://linux-test-project.github.io/
 T:      git git://github.com/linux-test-project/ltp.git
 S:      Maintained
diff --git a/Makefile b/Makefile
index 1a132ea43ca5..84f4b31e3c6e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 3
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = Hurr durr I'ma sheep
 
 # *DOCUMENTATION*
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index f05bdb4b1cb9..ff4049155c84 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -297,7 +297,9 @@ static inline void __iomem * ioremap_nocache(unsigned long offset,
                                              unsigned long size)
 {
         return ioremap(offset, size);
-} 
+}
+
+#define ioremap_uc ioremap_nocache
 
 static inline void iounmap(volatile void __iomem *addr)
 {
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 2804648c8ff4..2d6efcff3bf3 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -117,6 +117,6 @@ handle_irq(int irq)
         }
 
         irq_enter();
-        generic_handle_irq_desc(irq, desc);
+        generic_handle_irq_desc(desc);
         irq_exit();
 }
diff --git a/arch/alpha/lib/udelay.c b/arch/alpha/lib/udelay.c
index 69d52aa37bae..f2d81ff38aa6 100644
--- a/arch/alpha/lib/udelay.c
+++ b/arch/alpha/lib/udelay.c
@@ -30,6 +30,7 @@ __delay(int loops)
                 "       bgt %0,1b"
                 : "=&r" (tmp), "=r" (loops) : "1"(loops));
 }
+EXPORT_SYMBOL(__delay);
 
 #ifdef CONFIG_SMP
 #define LPJ      cpu_data[smp_processor_id()].loops_per_jiffy
diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c
index d9e44b62df05..4ffd1855f1bd 100644
--- a/arch/arc/kernel/mcip.c
+++ b/arch/arc/kernel/mcip.c
@@ -252,7 +252,7 @@ static struct irq_chip idu_irq_chip = {
 
 static int idu_first_irq;
 
-static void idu_cascade_isr(unsigned int __core_irq, struct irq_desc *desc)
+static void idu_cascade_isr(struct irq_desc *desc)
 {
         struct irq_domain *domain = irq_desc_get_handler_data(desc);
         unsigned int core_irq = irq_desc_get_irq(desc);
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 7451b447cc2d..2c2b28ee4811 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -54,6 +54,14 @@ AS		+= -EL
 LD              += -EL
 endif
 
+#
+# The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
+# later may result in code being generated that handles signed short and signed
+# char struct members incorrectly. So disable it.
+# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
+#
+KBUILD_CFLAGS   += $(call cc-option,-fno-ipa-sra)
+
 # This selects which instruction set is used.
 # Note that GCC does not numerically define an architecture version
 # macro, but instead defines a whole series of macros which makes
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 96dabcb6c621..996aed3b4eee 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -95,7 +95,7 @@ void it8152_init_irq(void)
         }
 }
 
-void it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
+void it8152_irq_demux(struct irq_desc *desc)
 {
        int bits_pd, bits_lp, bits_ld;
        int i;
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 304adea4bc52..0e97b4b871f9 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -138,7 +138,7 @@ static struct locomo_dev_info locomo_devices[] = {
         },
 };
 
-static void locomo_handler(unsigned int __irq, struct irq_desc *desc)
+static void locomo_handler(struct irq_desc *desc)
 {
         struct locomo *lchip = irq_desc_get_chip_data(desc);
         int req, i;
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 4f290250fa93..3d224941b541 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -196,10 +196,8 @@ static struct sa1111_dev_info sa1111_devices[] = {
  * active IRQs causes the interrupt output to pulse, the upper levels
  * will call us again if there are more interrupts to process.
  */
-static void
-sa1111_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void sa1111_irq_handler(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         unsigned int stat0, stat1, i;
         struct sa1111 *sachip = irq_desc_get_handler_data(desc);
         void __iomem *mapbase = sachip->base + SA1111_INTC;
@@ -214,7 +212,7 @@ sa1111_irq_handler(unsigned int __irq, struct irq_desc *desc)
         sa1111_writel(stat1, mapbase + SA1111_INTSTATCLR1);
 
         if (stat0 == 0 && stat1 == 0) {
-                do_bad_IRQ(irq, desc);
+                do_bad_IRQ(desc);
                 return;
         }
 
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 7bbf325a4f31..b2bc8e11471d 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -491,11 +491,6 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 #endif
         .endm
 
-        .macro  uaccess_save_and_disable, tmp
-        uaccess_save \tmp
-        uaccess_disable \tmp
-        .endm
-
         .irp    c,,eq,ne,cs,cc,mi,pl,vs,vc,hi,ls,ge,lt,gt,le,hs,lo
         .macro  ret\c, reg
 #if __LINUX_ARM_ARCH__ < 6
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index b274bde24905..e7335a92144e 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -40,6 +40,7 @@ do {								\
                 "2:\t.asciz " #__file "\n"                      \
                 ".popsection\n"                                 \
                 ".pushsection __bug_table,\"a\"\n"              \
+                ".align 2\n"                                    \
                 "3:\t.word 1b, 2b\n"                            \
                 "\t.hword " #__line ", 0\n"                     \
                 ".popsection");                                 \
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
index e878129f2fee..fc8ba1663601 100644
--- a/arch/arm/include/asm/domain.h
+++ b/arch/arm/include/asm/domain.h
@@ -12,6 +12,7 @@
 
 #ifndef __ASSEMBLY__
 #include <asm/barrier.h>
+#include <asm/thread_info.h>
 #endif
 
 /*
@@ -89,7 +90,8 @@ static inline unsigned int get_domain(void)
 
         asm(
         "mrc    p15, 0, %0, c3, c0      @ get domain"
-         : "=r" (domain));
+         : "=r" (domain)
+         : "m" (current_thread_info()->cpu_domain));
 
         return domain;
 }
@@ -98,7 +100,7 @@ static inline void set_domain(unsigned val)
 {
         asm volatile(
         "mcr    p15, 0, %0, c3, c0      @ set domain"
-          : : "r" (val));
+          : : "r" (val) : "memory");
         isb();
 }
 
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index d36a73d7c0e8..076777ff3daa 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -106,7 +106,7 @@ extern void __iomem *it8152_base_address;
 struct pci_dev;
 struct pci_sys_data;
 
-extern void it8152_irq_demux(unsigned int irq, struct irq_desc *desc);
+extern void it8152_irq_demux(struct irq_desc *desc);
 extern void it8152_init_irq(void);
 extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
diff --git a/arch/arm/include/asm/hw_irq.h b/arch/arm/include/asm/hw_irq.h
index af79da40af2a..9beb92914f4d 100644
--- a/arch/arm/include/asm/hw_irq.h
+++ b/arch/arm/include/asm/hw_irq.h
@@ -11,12 +11,6 @@ static inline void ack_bad_irq(int irq)
         pr_crit("unexpected IRQ trap at vector %02x\n", irq);
 }
 
-void set_irq_flags(unsigned int irq, unsigned int flags);
-
-#define IRQF_VALID      (1 << 0)
-#define IRQF_PROBE      (1 << 1)
-#define IRQF_NOAUTOEN   (1 << 2)
-
 #define ARCH_IRQ_INIT_FLAGS     (IRQ_NOREQUEST | IRQ_NOPROBE)
 
 #endif
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index dcba0fa5176e..3df1e975f72a 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -29,12 +29,6 @@
 
 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 
-#if defined(CONFIG_KVM_ARM_MAX_VCPUS)
-#define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
-#else
-#define KVM_MAX_VCPUS 0
-#endif
-
 #define KVM_USER_MEM_SLOTS 32
 #define KVM_PRIVATE_MEM_SLOTS 4
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
@@ -44,6 +38,8 @@
 
 #include <kvm/arm_vgic.h>
 
+#define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS
+
 u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
 int __attribute_const__ kvm_target_cpu(void);
 int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
@@ -148,6 +144,7 @@ struct kvm_vm_stat {
 
 struct kvm_vcpu_stat {
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
 };
 
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index 2092ee1e1300..de4634b51456 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -23,10 +23,10 @@ extern int show_fiq_list(struct seq_file *, int);
 /*
  * This is for easy migration, but should be changed in the source
  */
-#define do_bad_IRQ(irq,desc)                            \
+#define do_bad_IRQ(desc)                                \
 do {                                                    \
         raw_spin_lock(&desc->lock);                     \
-        handle_bad_irq(irq, desc);                      \
+        handle_bad_irq(desc);                           \
         raw_spin_unlock(&desc->lock);                   \
 } while(0)
 
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index d0a1119dcaf3..776757d1604a 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -25,7 +25,6 @@
 struct task_struct;
 
 #include <asm/types.h>
-#include <asm/domain.h>
 
 typedef unsigned long mm_segment_t;
 
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 5ff4826cb154..2766183e69df 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -79,26 +79,6 @@ asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
         handle_IRQ(irq, regs);
 }
 
-void set_irq_flags(unsigned int irq, unsigned int iflags)
-{
-        unsigned long clr = 0, set = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
-
-        if (irq >= nr_irqs) {
-                pr_err("Trying to set irq flags for IRQ%d\n", irq);
-                return;
-        }
-
-        if (iflags & IRQF_VALID)
-                clr |= IRQ_NOREQUEST;
-        if (iflags & IRQF_PROBE)
-                clr |= IRQ_NOPROBE;
-        if (!(iflags & IRQF_NOAUTOEN))
-                clr |= IRQ_NOAUTOEN;
-        /* Order is clear bits in "clr" then set bits in "set" */
-        irq_modify_status(irq, clr, set & ~clr);
-}
-EXPORT_SYMBOL_GPL(set_irq_flags);
-
 void __init init_IRQ(void)
 {
         int ret;
diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c
index a6ad93c9bce3..fd9eefce0a7b 100644
--- a/arch/arm/kernel/kgdb.c
+++ b/arch/arm/kernel/kgdb.c
@@ -259,15 +259,17 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
         if (err)
                 return err;
 
-        patch_text((void *)bpt->bpt_addr,
-                   *(unsigned int *)arch_kgdb_ops.gdb_bpt_instr);
+        /* Machine is already stopped, so we can use __patch_text() directly */
+        __patch_text((void *)bpt->bpt_addr,
+                     *(unsigned int *)arch_kgdb_ops.gdb_bpt_instr);
 
         return err;
 }
 
 int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
 {
-        patch_text((void *)bpt->bpt_addr, *(unsigned int *)bpt->saved_instr);
+        /* Machine is already stopped, so we can use __patch_text() directly */
+        __patch_text((void *)bpt->bpt_addr, *(unsigned int *)bpt->saved_instr);
 
         return 0;
 }
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index a3089bacb8d8..7a7c4cea5523 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -226,6 +226,7 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
 
         memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
 
+#ifdef CONFIG_CPU_USE_DOMAINS
         /*
          * Copy the initial value of the domain access control register
          * from the current thread: thread->addr_limit will have been
@@ -233,6 +234,7 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
          * kernel/fork.c
          */
         thread->cpu_domain = get_domain();
+#endif
 
         if (likely(!(p->flags & PF_KTHREAD))) {
                 *childregs = *current_pt_regs();
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index b6cda06b455f..7b8f2141427b 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -343,15 +343,18 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
                  */
                 thumb = handler & 1;
 
-#if __LINUX_ARM_ARCH__ >= 7
                 /*
-                 * Clear the If-Then Thumb-2 execution state
-                 * ARM spec requires this to be all 000s in ARM mode
-                 * Snapdragon S4/Krait misbehaves on a Thumb=>ARM
-                 * signal transition without this.
+                 * Clear the If-Then Thumb-2 execution state.  ARM spec
+                 * requires this to be all 000s in ARM mode.  Snapdragon
+                 * S4/Krait misbehaves on a Thumb=>ARM signal transition
+                 * without this.
+                 *
+                 * We must do this whenever we are running on a Thumb-2
+                 * capable CPU, which includes ARMv6T2.  However, we elect
+                 * to always do this to simplify the code; this field is
+                 * marked UNK/SBZP for older architectures.
                  */
                 cpsr &= ~PSR_IT_MASK;
-#endif
 
                 if (thumb) {
                         cpsr |= PSR_T_BIT;
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index bfb915d05665..210eccadb69a 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -45,15 +45,4 @@ config KVM_ARM_HOST
         ---help---
           Provides host support for ARM processors.
 
-config KVM_ARM_MAX_VCPUS
-        int "Number maximum supported virtual CPUs per VM"
-        depends on KVM_ARM_HOST
-        default 4
-        help
-          Static number of max supported virtual CPUs per VM.
-
-          If you choose a high number, the vcpu structures will be quite
-          large, so only choose a reasonable number that you expect to
-          actually use.
-
 endif # VIRTUALIZATION
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index ce404a5c3062..dc017adfddc8 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -446,7 +446,7 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
          * Map the VGIC hardware resources before running a vcpu the first
          * time on this VM.
          */
-        if (unlikely(!vgic_ready(kvm))) {
+        if (unlikely(irqchip_in_kernel(kvm) && !vgic_ready(kvm))) {
                 ret = kvm_vgic_map_resources(kvm);
                 if (ret)
                         return ret;
diff --git a/arch/arm/kvm/interrupts_head.S b/arch/arm/kvm/interrupts_head.S
index 702740d37465..51a59504bef4 100644
--- a/arch/arm/kvm/interrupts_head.S
+++ b/arch/arm/kvm/interrupts_head.S
@@ -515,8 +515,7 @@ ARM_BE8(rev	r6, r6  )
 
         mrc     p15, 0, r2, c14, c3, 1  @ CNTV_CTL
         str     r2, [vcpu, #VCPU_TIMER_CNTV_CTL]
-        bic     r2, #1                  @ Clear ENABLE
-        mcr     p15, 0, r2, c14, c3, 1  @ CNTV_CTL
+
         isb
 
         mrrc    p15, 3, rr_lo_hi(r2, r3), c14   @ CNTV_CVAL
@@ -529,6 +528,9 @@ ARM_BE8(rev	r6, r6  )
         mcrr    p15, 4, r2, r2, c14     @ CNTVOFF
 
 1:
+        mov     r2, #0                  @ Clear ENABLE
+        mcr     p15, 0, r2, c14, c3, 1  @ CNTV_CTL
+
         @ Allow physical timer/counter access for the host
         mrc     p15, 4, r2, c14, c1, 0  @ CNTHCTL
         orr     r2, r2, #(CNTHCTL_PL1PCEN | CNTHCTL_PL1PCTEN)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 7b4201294187..6984342da13d 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -1792,8 +1792,10 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
                 if (vma->vm_flags & VM_PFNMAP) {
                         gpa_t gpa = mem->guest_phys_addr +
                                     (vm_start - mem->userspace_addr);
-                        phys_addr_t pa = (vma->vm_pgoff << PAGE_SHIFT) +
-                                         vm_start - vma->vm_start;
+                        phys_addr_t pa;
+
+                        pa = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;
+                        pa += vm_start - vma->vm_start;
 
                         /* IO region dirty page logging not allowed */
                         if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES)
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index 4b94b513168d..ad6f6424f1d1 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -126,7 +126,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 
 static unsigned long kvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu)
 {
-        int i;
+        int i, matching_cpus = 0;
         unsigned long mpidr;
         unsigned long target_affinity;
         unsigned long target_affinity_mask;
@@ -151,12 +151,16 @@ static unsigned long kvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu)
          */
         kvm_for_each_vcpu(i, tmp, kvm) {
                 mpidr = kvm_vcpu_get_mpidr_aff(tmp);
-                if (((mpidr & target_affinity_mask) == target_affinity) &&
-                    !tmp->arch.pause) {
-                        return PSCI_0_2_AFFINITY_LEVEL_ON;
+                if ((mpidr & target_affinity_mask) == target_affinity) {
+                        matching_cpus++;
+                        if (!tmp->arch.pause)
+                                return PSCI_0_2_AFFINITY_LEVEL_ON;
                 }
         }
 
+        if (!matching_cpus)
+                return PSCI_RET_INVALID_PARAMS;
+
         return PSCI_0_2_AFFINITY_LEVEL_OFF;
 }
 
diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index 305d7c6242bb..bfb3703357c5 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -69,14 +69,14 @@ static struct irq_chip pmu_irq_chip = {
         .irq_ack        = pmu_irq_ack,
 };
 
-static void pmu_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void pmu_irq_handler(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         unsigned long cause = readl(PMU_INTERRUPT_CAUSE);
+        unsigned int irq;
 
         cause &= readl(PMU_INTERRUPT_MASK);
         if (cause == 0) {
-                do_bad_IRQ(irq, desc);
+                do_bad_IRQ(desc);
                 return;
         }
 
diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index fcd79bc3a3e1..c01fca11b224 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -87,13 +87,12 @@ static struct irq_chip isa_hi_chip = {
         .irq_unmask     = isa_unmask_pic_hi_irq,
 };
 
-static void
-isa_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void isa_irq_handler(struct irq_desc *desc)
 {
         unsigned int isa_irq = *(unsigned char *)PCIIACK_BASE;
 
         if (isa_irq < _ISA_IRQ(0) || isa_irq >= _ISA_IRQ(16)) {
-                do_bad_IRQ(isa_irq, desc);
+                do_bad_IRQ(desc);
                 return;
         }
 
diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
index 220333ed741d..2478d9f4d92d 100644
--- a/arch/arm/mach-gemini/gpio.c
+++ b/arch/arm/mach-gemini/gpio.c
@@ -126,7 +126,7 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
         return 0;
 }
 
-static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
         unsigned int port = (unsigned int)irq_desc_get_handler_data(desc);
         unsigned int gpio_irq_no, irq_stat;
diff --git a/arch/arm/mach-imx/3ds_debugboard.c b/arch/arm/mach-imx/3ds_debugboard.c
index 45903be6e7b3..16496a071ecb 100644
--- a/arch/arm/mach-imx/3ds_debugboard.c
+++ b/arch/arm/mach-imx/3ds_debugboard.c
@@ -85,7 +85,7 @@ static struct platform_device smsc_lan9217_device = {
         .resource = smsc911x_resources,
 };
 
-static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mxc_expio_irq_handler(struct irq_desc *desc)
 {
         u32 imr_val;
         u32 int_valid;
diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
index 2c0853560bd2..2b147e4bf9c9 100644
--- a/arch/arm/mach-imx/mach-mx31ads.c
+++ b/arch/arm/mach-imx/mach-mx31ads.c
@@ -154,7 +154,7 @@ static inline void mxc_init_imx_uart(void)
         imx31_add_imx_uart0(&uart_pdata);
 }
 
-static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx31ads_expio_irq_handler(struct irq_desc *desc)
 {
         u32 imr_val;
         u32 int_valid;
diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c
index 9f89e76dfbb9..f6235b28578c 100644
--- a/arch/arm/mach-iop13xx/msi.c
+++ b/arch/arm/mach-iop13xx/msi.c
@@ -91,7 +91,7 @@ static void (*write_imipr[])(u32) = {
         write_imipr_3,
 };
 
-static void iop13xx_msi_handler(unsigned int irq, struct irq_desc *desc)
+static void iop13xx_msi_handler(struct irq_desc *desc)
 {
         int i, j;
         unsigned long status;
diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index cce4cef12b6e..2ae431e8bc1b 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -370,7 +370,7 @@ static struct irq_chip lpc32xx_irq_chip = {
         .irq_set_wake = lpc32xx_irq_wake
 };
 
-static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
+static void lpc32xx_sic1_handler(struct irq_desc *desc)
 {
         unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC1_BASE));
 
@@ -383,7 +383,7 @@ static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void lpc32xx_sic2_handler(unsigned int irq, struct irq_desc *desc)
+static void lpc32xx_sic2_handler(struct irq_desc *desc)
 {
         unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC2_BASE));
 
diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c
index 6373e2bff203..842302df99c1 100644
--- a/arch/arm/mach-netx/generic.c
+++ b/arch/arm/mach-netx/generic.c
@@ -69,8 +69,7 @@ static struct platform_device *devices[] __initdata = {
 #define DEBUG_IRQ(fmt...)       while (0) {}
 #endif
 
-static void
-netx_hif_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
+static void netx_hif_demux_handler(struct irq_desc *desc)
 {
         unsigned int irq = NETX_IRQ_HIF_CHAINED(0);
         unsigned int stat;
diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index dfec671b1639..39e20d0ead08 100644
--- a/arch/arm/mach-omap1/fpga.c
+++ b/arch/arm/mach-omap1/fpga.c
@@ -87,7 +87,7 @@ static void fpga_mask_ack_irq(struct irq_data *d)
         fpga_ack_irq(d);
 }
 
-static void innovator_fpga_IRQ_demux(unsigned int irq, struct irq_desc *desc)
+static void innovator_fpga_IRQ_demux(struct irq_desc *desc)
 {
         u32 stat;
         int fpga_irq;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 257e98c26618..3fc2cbe52113 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -102,7 +102,7 @@ static void omap_prcm_events_filter_priority(unsigned long *events,
  * dispatched accordingly. Clearing of the wakeup events should be
  * done by the SoC specific individual handlers.
  */
-static void omap_prcm_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void omap_prcm_irq_handler(struct irq_desc *desc)
 {
         unsigned long pending[OMAP_PRCM_MAX_NR_PENDING_REG];
         unsigned long priority_pending[OMAP_PRCM_MAX_NR_PENDING_REG];
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index 70366b35d299..a3ebb517cca1 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -496,7 +496,7 @@ static struct irq_chip balloon3_irq_chip = {
         .irq_unmask     = balloon3_unmask_irq,
 };
 
-static void balloon3_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void balloon3_irq_handler(struct irq_desc *desc)
 {
         unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
                                         balloon3_irq_enabled;
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index 1fa79f1f832d..3221ae15bef7 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -29,13 +29,12 @@
 void __iomem *it8152_base_address;
 static int cmx2xx_it8152_irq_gpio;
 
-static void cmx2xx_it8152_irq_demux(unsigned int __irq, struct irq_desc *desc)
+static void cmx2xx_it8152_irq_demux(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         /* clear our parent irq */
         desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-        it8152_irq_demux(irq, desc);
+        it8152_irq_demux(desc);
 }
 
 void __cmx2xx_pci_init_irq(int irq_gpio)
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index b070167deef2..4823d972e647 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -120,7 +120,7 @@ static struct irq_chip lpd270_irq_chip = {
         .irq_unmask     = lpd270_unmask_irq,
 };
 
-static void lpd270_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void lpd270_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq;
         unsigned long pending;
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 9a0c8affdadb..d8319b54299a 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -284,7 +284,7 @@ static struct irq_chip pcm990_irq_chip = {
         .irq_unmask     = pcm990_unmask_irq,
 };
 
-static void pcm990_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void pcm990_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq;
         unsigned long pending;
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 4841d6cefe76..8ab26370107e 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -276,7 +276,7 @@ static inline unsigned long viper_irq_pending(void)
                         viper_irq_enabled_mask;
 }
 
-static void viper_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void viper_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq;
         unsigned long pending;
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 6f94dd7b4dee..30e62a3f0701 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -105,7 +105,7 @@ static inline unsigned long zeus_irq_pending(void)
         return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask;
 }
 
-static void zeus_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void zeus_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq;
         unsigned long pending;
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index f726d4c4e6dd..dc67a7fb3831 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -551,8 +551,7 @@ static void ecard_check_lockup(struct irq_desc *desc)
         }
 }
 
-static void
-ecard_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ecard_irq_handler(struct irq_desc *desc)
 {
         ecard_t *ec;
         int called = 0;
diff --git a/arch/arm/mach-s3c24xx/bast-irq.c b/arch/arm/mach-s3c24xx/bast-irq.c
index ced1ab86ac83..2bb08961e934 100644
--- a/arch/arm/mach-s3c24xx/bast-irq.c
+++ b/arch/arm/mach-s3c24xx/bast-irq.c
@@ -100,9 +100,7 @@ static struct irq_chip  bast_pc104_chip = {
         .irq_ack        = bast_pc104_maskack
 };
 
-static void
-bast_irq_pc104_demux(unsigned int irq,
-                     struct irq_desc *desc)
+static void bast_irq_pc104_demux(struct irq_desc *desc)
 {
         unsigned int stat;
         unsigned int irqno;
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index fd63ecfb2f81..ddb30b8434c5 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -388,22 +388,22 @@ static inline void s3c_irq_demux_eint(unsigned int start, unsigned int end)
         }
 }
 
-static void s3c_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint0_3(struct irq_desc *desc)
 {
         s3c_irq_demux_eint(0, 3);
 }
 
-static void s3c_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint4_11(struct irq_desc *desc)
 {
         s3c_irq_demux_eint(4, 11);
 }
 
-static void s3c_irq_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint12_19(struct irq_desc *desc)
 {
         s3c_irq_demux_eint(12, 19);
 }
 
-static void s3c_irq_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint20_27(struct irq_desc *desc)
 {
         s3c_irq_demux_eint(20, 27);
 }
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index 6d237b4f7a8e..8411985af9ff 100644
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/arch/arm/mach-sa1100/neponset.c
@@ -166,7 +166,7 @@ static struct sa1100_port_fns neponset_port_fns = {
  * ensure that the IRQ signal is deasserted before returning.  This
  * is rather unfortunate.
  */
-static void neponset_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void neponset_irq_handler(struct irq_desc *desc)
 {
         struct neponset_drvdata *d = irq_desc_get_handler_data(desc);
         unsigned int irr;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e62604384945..1a7815e5421b 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1249,7 +1249,7 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size)
         struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev);
         unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
         dma_addr_t dma_addr, iova;
-        int i, ret = DMA_ERROR_CODE;
+        int i;
 
         dma_addr = __alloc_iova(mapping, size);
         if (dma_addr == DMA_ERROR_CODE)
@@ -1257,6 +1257,8 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size)
 
         iova = dma_addr;
         for (i = 0; i < count; ) {
+                int ret;
+
                 unsigned int next_pfn = page_to_pfn(pages[i]) + 1;
                 phys_addr_t phys = page_to_phys(pages[i]);
                 unsigned int len, j;
diff --git a/arch/arm/nwfpe/entry.S b/arch/arm/nwfpe/entry.S
index 71df43547659..39c20afad7ed 100644
--- a/arch/arm/nwfpe/entry.S
+++ b/arch/arm/nwfpe/entry.S
@@ -95,9 +95,10 @@ emulate:
         reteq   r4                      @ no, return failure
 
 next:
+        uaccess_enable r3
 .Lx1:   ldrt    r6, [r5], #4            @ get the next instruction and
                                         @ increment PC
-
+        uaccess_disable r3
         and     r2, r6, #0x0F000000     @ test for FP insns
         teq     r2, #0x0C000000
         teqne   r2, #0x0D000000
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index 79c33eca09a3..7bd22d8e5b11 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -407,7 +407,7 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type)
         return 0;
 }
 
-static void gpio_irq_handler(unsigned __irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
         struct orion_gpio_chip *ochip = irq_desc_get_handler_data(desc);
         u32 cause, type;
diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
index f00e08075938..10fd99c568c6 100644
--- a/arch/arm/xen/hypercall.S
+++ b/arch/arm/xen/hypercall.S
@@ -98,8 +98,23 @@ ENTRY(privcmd_call)
         mov r1, r2
         mov r2, r3
         ldr r3, [sp, #8]
+        /*
+         * Privcmd calls are issued by the userspace. We need to allow the
+         * kernel to access the userspace memory before issuing the hypercall.
+         */
+        uaccess_enable r4
+
+        /* r4 is loaded now as we use it as scratch register before */
         ldr r4, [sp, #4]
         __HVC(XEN_IMM)
+
+        /*
+         * Disable userspace access from kernel. This is fine to do it
+         * unconditionally as no set_fs(KERNEL_DS)/set_fs(get_ds()) is
+         * called before.
+         */
+        uaccess_disable r4
+
         ldm sp!, {r4}
         ret lr
 ENDPROC(privcmd_call);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7d95663c0160..07d1811aa03f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -32,6 +32,7 @@ config ARM64
         select GENERIC_CLOCKEVENTS_BROADCAST
         select GENERIC_CPU_AUTOPROBE
         select GENERIC_EARLY_IOREMAP
+        select GENERIC_IDLE_POLL_SETUP
         select GENERIC_IRQ_PROBE
         select GENERIC_IRQ_SHOW
         select GENERIC_IRQ_SHOW_LEVEL
@@ -331,6 +332,22 @@ config ARM64_ERRATUM_845719
 
           If unsure, say Y.
 
+config ARM64_ERRATUM_843419
+        bool "Cortex-A53: 843419: A load or store might access an incorrect address"
+        depends on MODULES
+        default y
+        help
+          This option builds kernel modules using the large memory model in
+          order to avoid the use of the ADRP instruction, which can cause
+          a subsequent memory access to use an incorrect address on Cortex-A53
+          parts up to r0p4.
+
+          Note that the kernel itself must be linked with a version of ld
+          which fixes potentially affected ADRP instructions through the
+          use of veneers.
+
+          If unsure, say Y.
+
 endmenu
 
 
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 15ff5b4156fd..f9914d7c1bb0 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -41,6 +41,10 @@ endif
 
 CHECKFLAGS      += -D__aarch64__
 
+ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
+CFLAGS_MODULE   += -mcmodel=large
+endif
+
 # Default value
 head-y          := arch/arm64/kernel/head.o
 
diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h
index 2bb7009bdac7..a57601f9d17c 100644
--- a/arch/arm64/include/asm/hardirq.h
+++ b/arch/arm64/include/asm/hardirq.h
@@ -43,9 +43,4 @@ static inline void ack_bad_irq(unsigned int irq)
         irq_err_count++;
 }
 
-/*
- * No arch-specific IRQ flags.
- */
-#define set_irq_flags(irq, flags)
-
 #endif /* __ASM_HARDIRQ_H */
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 7605e095217f..9694f2654593 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -95,6 +95,7 @@
                          SCTLR_EL2_SA | SCTLR_EL2_I)
 
 /* TCR_EL2 Registers bits */
+#define TCR_EL2_RES1    ((1 << 31) | (1 << 23))
 #define TCR_EL2_TBI     (1 << 20)
 #define TCR_EL2_PS      (7 << 16)
 #define TCR_EL2_PS_40B  (2 << 16)
@@ -106,9 +107,10 @@
 #define TCR_EL2_MASK    (TCR_EL2_TG0 | TCR_EL2_SH0 | \
                          TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
 
-#define TCR_EL2_FLAGS   (TCR_EL2_PS_40B)
+#define TCR_EL2_FLAGS   (TCR_EL2_RES1 | TCR_EL2_PS_40B)
 
 /* VTCR_EL2 Registers bits */
+#define VTCR_EL2_RES1           (1 << 31)
 #define VTCR_EL2_PS_MASK        (7 << 16)
 #define VTCR_EL2_TG0_MASK       (1 << 14)
 #define VTCR_EL2_TG0_4K         (0 << 14)
@@ -147,7 +149,8 @@
  */
 #define VTCR_EL2_FLAGS          (VTCR_EL2_TG0_64K | VTCR_EL2_SH0_INNER | \
                                  VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
-                                 VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
+                                 VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B | \
+                                 VTCR_EL2_RES1)
 #define VTTBR_X         (38 - VTCR_EL2_T0SZ_40B)
 #else
 /*
@@ -158,7 +161,8 @@
  */
 #define VTCR_EL2_FLAGS          (VTCR_EL2_TG0_4K | VTCR_EL2_SH0_INNER | \
                                  VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
-                                 VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
+                                 VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B | \
+                                 VTCR_EL2_RES1)
 #define VTTBR_X         (37 - VTCR_EL2_T0SZ_40B)
 #endif
 
@@ -168,7 +172,6 @@
 #define VTTBR_VMID_MASK   (UL(0xFF) << VTTBR_VMID_SHIFT)
 
 /* Hyp System Trap Register */
-#define HSTR_EL2_TTEE   (1 << 16)
 #define HSTR_EL2_T(x)   (1 << x)
 
 /* Hyp Coproccessor Trap Register Shifts */
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 67fa0de3d483..5e377101f919 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -53,9 +53,7 @@
 #define IFSR32_EL2      25      /* Instruction Fault Status Register */
 #define FPEXC32_EL2     26      /* Floating-Point Exception Control Register */
 #define DBGVCR32_EL2    27      /* Debug Vector Catch Register */
-#define TEECR32_EL1     28      /* ThumbEE Configuration Register */
-#define TEEHBR32_EL1    29      /* ThumbEE Handler Base Register */
-#define NR_SYS_REGS     30
+#define NR_SYS_REGS     28
 
 /* 32bit mapping */
 #define c0_MPIDR        (MPIDR_EL1 * 2) /* MultiProcessor ID Register */
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 415938dc45cf..4562459456a6 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -30,12 +30,6 @@
 
 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 
-#if defined(CONFIG_KVM_ARM_MAX_VCPUS)
-#define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
-#else
-#define KVM_MAX_VCPUS 0
-#endif
-
 #define KVM_USER_MEM_SLOTS 32
 #define KVM_PRIVATE_MEM_SLOTS 4
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
@@ -43,6 +37,8 @@
 #include <kvm/arm_vgic.h>
 #include <kvm/arm_arch_timer.h>
 
+#define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS
+
 #define KVM_VCPU_MAX_FEATURES 3
 
 int __attribute_const__ kvm_target_cpu(void);
@@ -195,6 +191,7 @@ struct kvm_vm_stat {
 
 struct kvm_vcpu_stat {
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
 };
 
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 6900b2d95371..b0329be95cb1 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -26,13 +26,9 @@
  * Software defined PTE bits definition.
  */
 #define PTE_VALID               (_AT(pteval_t, 1) << 0)
+#define PTE_WRITE               (PTE_DBM)                /* same as DBM (51) */
 #define PTE_DIRTY               (_AT(pteval_t, 1) << 55)
 #define PTE_SPECIAL             (_AT(pteval_t, 1) << 56)
-#ifdef CONFIG_ARM64_HW_AFDBM
-#define PTE_WRITE               (PTE_DBM)                /* same as DBM */
-#else
-#define PTE_WRITE               (_AT(pteval_t, 1) << 57)
-#endif
 #define PTE_PROT_NONE           (_AT(pteval_t, 1) << 58) /* only when !PTE_VALID */
 
 /*
@@ -146,7 +142,7 @@ extern struct page *empty_zero_page;
 #define pte_exec(pte)           (!(pte_val(pte) & PTE_UXN))
 
 #ifdef CONFIG_ARM64_HW_AFDBM
-#define pte_hw_dirty(pte)       (!(pte_val(pte) & PTE_RDONLY))
+#define pte_hw_dirty(pte)       (pte_write(pte) && !(pte_val(pte) & PTE_RDONLY))
 #else
 #define pte_hw_dirty(pte)       (0)
 #endif
@@ -238,7 +234,7 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr);
  * When hardware DBM is not present, the sofware PTE_DIRTY bit is updated via
  * the page fault mechanism. Checking the dirty status of a pte becomes:
  *
- *   PTE_DIRTY || !PTE_RDONLY
+ *   PTE_DIRTY || (PTE_WRITE && !PTE_RDONLY)
  */
 static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
                               pte_t *ptep, pte_t pte)
@@ -503,7 +499,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
                               PTE_PROT_NONE | PTE_WRITE | PTE_TYPE_MASK;
         /* preserve the hardware dirty information */
         if (pte_hw_dirty(pte))
-                newprot |= PTE_DIRTY;
+                pte = pte_mkdirty(pte);
         pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
         return pte;
 }
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 9b3b62ac9c24..cebf78661a55 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -134,7 +134,7 @@ static int os_lock_notify(struct notifier_block *self,
                                     unsigned long action, void *data)
 {
         int cpu = (unsigned long)data;
-        if (action == CPU_ONLINE)
+        if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE)
                 smp_call_function_single(cpu, clear_os_lock, NULL, 1);
         return NOTIFY_OK;
 }
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index a055be6125cf..90d09eddd5b2 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -523,6 +523,11 @@ CPU_LE(	movk	x0, #0x30d0, lsl #16	)	// Clear EE and E0E on LE systems
         msr     hstr_el2, xzr                   // Disable CP15 traps to EL2
 #endif
 
+        /* EL2 debug */
+        mrs     x0, pmcr_el0                    // Disable debug access traps
+        ubfx    x0, x0, #11, #5                 // to EL2 and allow access to
+        msr     mdcr_el2, x0                    // all PMU counters from EL1
+
         /* Stage-2 translation */
         msr     vttbr_el2, xzr
 
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index c97040ecf838..bba85c8f8037 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -872,7 +872,7 @@ static int hw_breakpoint_reset_notify(struct notifier_block *self,
                                                 void *hcpu)
 {
         int cpu = (long)hcpu;
-        if (action == CPU_ONLINE)
+        if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE)
                 smp_call_function_single(cpu, hw_breakpoint_reset, NULL, 1);
         return NOTIFY_OK;
 }
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 67bf4107f6ef..876eb8df50bf 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -332,12 +332,14 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
                         ovf = reloc_insn_imm(RELOC_OP_PREL, loc, val, 0, 21,
                                              AARCH64_INSN_IMM_ADR);
                         break;
+#ifndef CONFIG_ARM64_ERRATUM_843419
                 case R_AARCH64_ADR_PREL_PG_HI21_NC:
                         overflow_check = false;
                 case R_AARCH64_ADR_PREL_PG_HI21:
                         ovf = reloc_insn_imm(RELOC_OP_PAGE, loc, val, 12, 21,
                                              AARCH64_INSN_IMM_ADR);
                         break;
+#endif
                 case R_AARCH64_ADD_ABS_LO12_NC:
                 case R_AARCH64_LDST8_ABS_LO12_NC:
                         overflow_check = false;
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 948f0ad2de23..71ef6dc89ae5 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -212,14 +212,32 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 
 /*
  * VFP save/restore code.
+ *
+ * We have to be careful with endianness, since the fpsimd context-switch
+ * code operates on 128-bit (Q) register values whereas the compat ABI
+ * uses an array of 64-bit (D) registers. Consequently, we need to swap
+ * the two halves of each Q register when running on a big-endian CPU.
  */
+union __fpsimd_vreg {
+        __uint128_t     raw;
+        struct {
+#ifdef __AARCH64EB__
+                u64     hi;
+                u64     lo;
+#else
+                u64     lo;
+                u64     hi;
+#endif
+        };
+};
+
 static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame)
 {
         struct fpsimd_state *fpsimd = &current->thread.fpsimd_state;
         compat_ulong_t magic = VFP_MAGIC;
         compat_ulong_t size = VFP_STORAGE_SIZE;
         compat_ulong_t fpscr, fpexc;
-        int err = 0;
+        int i, err = 0;
 
         /*
          * Save the hardware registers to the fpsimd_state structure.
@@ -235,10 +253,15 @@ static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame)
         /*
          * Now copy the FP registers. Since the registers are packed,
          * we can copy the prefix we want (V0-V15) as it is.
-         * FIXME: Won't work if big endian.
          */
-        err |= __copy_to_user(&frame->ufp.fpregs, fpsimd->vregs,
-                              sizeof(frame->ufp.fpregs));
+        for (i = 0; i < ARRAY_SIZE(frame->ufp.fpregs); i += 2) {
+                union __fpsimd_vreg vreg = {
+                        .raw = fpsimd->vregs[i >> 1],
+                };
+
+                __put_user_error(vreg.lo, &frame->ufp.fpregs[i], err);
+                __put_user_error(vreg.hi, &frame->ufp.fpregs[i + 1], err);
+        }
 
         /* Create an AArch32 fpscr from the fpsr and the fpcr. */
         fpscr = (fpsimd->fpsr & VFP_FPSCR_STAT_MASK) |
@@ -263,7 +286,7 @@ static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame)
         compat_ulong_t magic = VFP_MAGIC;
         compat_ulong_t size = VFP_STORAGE_SIZE;
         compat_ulong_t fpscr;
-        int err = 0;
+        int i, err = 0;
 
         __get_user_error(magic, &frame->magic, err);
         __get_user_error(size, &frame->size, err);
@@ -273,12 +296,14 @@ static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame)
         if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
                 return -EINVAL;
 
-        /*
-         * Copy the FP registers into the start of the fpsimd_state.
-         * FIXME: Won't work if big endian.
-         */
-        err |= __copy_from_user(fpsimd.vregs, frame->ufp.fpregs,
-                                sizeof(frame->ufp.fpregs));
+        /* Copy the FP registers into the start of the fpsimd_state. */
+        for (i = 0; i < ARRAY_SIZE(frame->ufp.fpregs); i += 2) {
+                union __fpsimd_vreg vreg;
+
+                __get_user_error(vreg.lo, &frame->ufp.fpregs[i], err);
+                __get_user_error(vreg.hi, &frame->ufp.fpregs[i + 1], err);
+                fpsimd.vregs[i >> 1] = vreg.raw;
+        }
 
         /* Extract the fpsr and the fpcr from the fpscr */
         __get_user_error(fpscr, &frame->ufp.fpscr, err);
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index bfffe8f4bd53..5c7e920e4861 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -41,15 +41,4 @@ config KVM_ARM_HOST
         ---help---
           Provides host support for ARM processors.
 
-config KVM_ARM_MAX_VCPUS
-        int "Number maximum supported virtual CPUs per VM"
-        depends on KVM_ARM_HOST
-        default 4
-        help
-          Static number of max supported virtual CPUs per VM.
-
-          If you choose a high number, the vcpu structures will be quite
-          large, so only choose a reasonable number that you expect to
-          actually use.
-
 endif # VIRTUALIZATION
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index 37c89ea2c572..e5836138ec42 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -433,20 +433,13 @@
         mrs     x5, ifsr32_el2
         stp     x4, x5, [x3]
 
-        skip_fpsimd_state x8, 3f
+        skip_fpsimd_state x8, 2f
         mrs     x6, fpexc32_el2
         str     x6, [x3, #16]
-3:
-        skip_debug_state x8, 2f
+2:
+        skip_debug_state x8, 1f
         mrs     x7, dbgvcr32_el2
         str     x7, [x3, #24]
-2:
-        skip_tee_state x8, 1f
-
-        add     x3, x2, #CPU_SYSREG_OFFSET(TEECR32_EL1)
-        mrs     x4, teecr32_el1
-        mrs     x5, teehbr32_el1
-        stp     x4, x5, [x3]
 1:
 .endm
 
@@ -466,16 +459,9 @@
         msr     dacr32_el2, x4
         msr     ifsr32_el2, x5
 
-        skip_debug_state x8, 2f
+        skip_debug_state x8, 1f
         ldr     x7, [x3, #24]
         msr     dbgvcr32_el2, x7
-2:
-        skip_tee_state x8, 1f
-
-        add     x3, x2, #CPU_SYSREG_OFFSET(TEECR32_EL1)
-        ldp     x4, x5, [x3]
-        msr     teecr32_el1, x4
-        msr     teehbr32_el1, x5
 1:
 .endm
 
@@ -570,8 +556,6 @@ alternative_endif
         mrs     x3, cntv_ctl_el0
         and     x3, x3, #3
         str     w3, [x0, #VCPU_TIMER_CNTV_CTL]
-        bic     x3, x3, #1              // Clear Enable
-        msr     cntv_ctl_el0, x3
 
         isb
 
@@ -579,6 +563,9 @@ alternative_endif
         str     x3, [x0, #VCPU_TIMER_CNTV_CVAL]
 
 1:
+        // Disable the virtual timer
+        msr     cntv_ctl_el0, xzr
+
         // Allow physical timer/counter access for the host
         mrs     x2, cnthctl_el2
         orr     x2, x2, #3
@@ -753,6 +740,9 @@ ENTRY(__kvm_vcpu_run)
         // Guest context
         add     x2, x0, #VCPU_CONTEXT
 
+        // We must restore the 32-bit state before the sysregs, thanks
+        // to Cortex-A57 erratum #852523.
+        restore_guest_32bit_state
         bl __restore_sysregs
 
         skip_debug_state x3, 1f
@@ -760,7 +750,6 @@ ENTRY(__kvm_vcpu_run)
         kern_hyp_va x3
         bl      __restore_debug
 1:
-        restore_guest_32bit_state
         restore_guest_regs
 
         // That's it, no more messing around.
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index b41607d270ac..d03d3af17e7e 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -272,7 +272,7 @@ static int set_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 {
         __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
 
-        if (copy_from_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
+        if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
                 return -EFAULT;
         return 0;
 }
@@ -314,7 +314,7 @@ static int set_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 {
         __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg];
 
-        if (copy_from_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
+        if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
                 return -EFAULT;
 
         return 0;
@@ -358,7 +358,7 @@ static int set_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 {
         __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg];
 
-        if (copy_from_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
+        if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
                 return -EFAULT;
         return 0;
 }
@@ -400,7 +400,7 @@ static int set_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 {
         __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg];
 
-        if (copy_from_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
+        if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
                 return -EFAULT;
         return 0;
 }
@@ -539,13 +539,6 @@ static const struct sys_reg_desc sys_reg_descs[] = {
         { Op0(0b10), Op1(0b000), CRn(0b0111), CRm(0b1110), Op2(0b110),
           trap_dbgauthstatus_el1 },
 
-        /* TEECR32_EL1 */
-        { Op0(0b10), Op1(0b010), CRn(0b0000), CRm(0b0000), Op2(0b000),
-          NULL, reset_val, TEECR32_EL1, 0 },
-        /* TEEHBR32_EL1 */
-        { Op0(0b10), Op1(0b010), CRn(0b0001), CRm(0b0000), Op2(0b000),
-          NULL, reset_val, TEEHBR32_EL1, 0 },
-
         /* MDCCSR_EL1 */
         { Op0(0b10), Op1(0b011), CRn(0b0000), CRm(0b0001), Op2(0b000),
           trap_raz_wi },
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 0bcc4bc94b4a..99224dcebdc5 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -100,7 +100,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
         if (IS_ENABLED(CONFIG_ZONE_DMA) &&
             dev->coherent_dma_mask <= DMA_BIT_MASK(32))
                 flags |= GFP_DMA;
-        if (IS_ENABLED(CONFIG_DMA_CMA) && (flags & __GFP_WAIT)) {
+        if (dev_get_cma_area(dev) && (flags & __GFP_WAIT)) {
                 struct page *page;
                 void *addr;
 
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index d51ff8f1c541..96cabad68489 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -144,7 +144,7 @@ static struct irq_chip eic_chip = {
         .irq_set_type   = eic_set_irq_type,
 };
 
-static void demux_eic_irq(unsigned int irq, struct irq_desc *desc)
+static void demux_eic_irq(struct irq_desc *desc)
 {
         struct eic *eic = irq_desc_get_handler_data(desc);
         unsigned long status, pending;
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 157a5e0e789f..4f61378c3453 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -281,7 +281,7 @@ static struct irq_chip gpio_irqchip = {
         .irq_set_type   = gpio_irq_type,
 };
 
-static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
         struct pio_device       *pio = irq_desc_get_chip_data(desc);
         unsigned                gpio_irq;
diff --git a/arch/blackfin/include/asm/irq_handler.h b/arch/blackfin/include/asm/irq_handler.h
index 4b2a992794d7..d2f90c72378e 100644
--- a/arch/blackfin/include/asm/irq_handler.h
+++ b/arch/blackfin/include/asm/irq_handler.h
@@ -60,7 +60,7 @@ extern void bfin_internal_mask_irq(unsigned int irq);
 extern void bfin_internal_unmask_irq(unsigned int irq);
 
 struct irq_desc;
-extern void bfin_demux_mac_status_irq(unsigned int, struct irq_desc *);
-extern void bfin_demux_gpio_irq(unsigned int, struct irq_desc *);
+extern void bfin_demux_mac_status_irq(struct irq_desc *);
+extern void bfin_demux_gpio_irq(struct irq_desc *);
 
 #endif
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 0ba25764b8c0..052cde5ed2e4 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -107,7 +107,7 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
          * than crashing, do something sensible.
          */
         if (irq >= NR_IRQS)
-                handle_bad_irq(irq, &bad_irq_desc);
+                handle_bad_irq(&bad_irq_desc);
         else
                 generic_handle_irq(irq);
 
diff --git a/arch/blackfin/mach-bf537/ints-priority.c b/arch/blackfin/mach-bf537/ints-priority.c
index 14b2f74554dc..a48baae4384d 100644
--- a/arch/blackfin/mach-bf537/ints-priority.c
+++ b/arch/blackfin/mach-bf537/ints-priority.c
@@ -89,8 +89,7 @@ static struct irq_chip bf537_generic_error_irqchip = {
         .irq_unmask = bf537_generic_error_unmask_irq,
 };
 
-static void bf537_demux_error_irq(unsigned int int_err_irq,
-                                  struct irq_desc *inta_desc)
+static void bf537_demux_error_irq(struct irq_desc *inta_desc)
 {
         int irq = 0;
 
@@ -182,15 +181,12 @@ static struct irq_chip bf537_mac_rx_irqchip = {
         .irq_unmask = bf537_mac_rx_unmask_irq,
 };
 
-static void bf537_demux_mac_rx_irq(unsigned int __int_irq,
-                                   struct irq_desc *desc)
+static void bf537_demux_mac_rx_irq(struct irq_desc *desc)
 {
-        unsigned int int_irq = irq_desc_get_irq(desc);
-
         if (bfin_read_DMA1_IRQ_STATUS() & (DMA_DONE | DMA_ERR))
                 bfin_handle_irq(IRQ_MAC_RX);
         else
-                bfin_demux_gpio_irq(int_irq, desc);
+                bfin_demux_gpio_irq(desc);
 }
 #endif
 
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index a6d1b03cdf36..e8d4d748d0fd 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -656,8 +656,7 @@ static struct irq_chip bfin_mac_status_irqchip = {
         .irq_set_wake = bfin_mac_status_set_wake,
 };
 
-void bfin_demux_mac_status_irq(unsigned int int_err_irq,
-                               struct irq_desc *inta_desc)
+void bfin_demux_mac_status_irq(struct irq_desc *inta_desc)
 {
         int i, irq = 0;
         u32 status = bfin_read_EMAC_SYSTAT();
@@ -825,7 +824,7 @@ static void bfin_demux_gpio_block(unsigned int irq)
         }
 }
 
-void bfin_demux_gpio_irq(unsigned int __inta_irq, struct irq_desc *desc)
+void bfin_demux_gpio_irq(struct irq_desc *desc)
 {
         unsigned int inta_irq = irq_desc_get_irq(desc);
         unsigned int irq;
diff --git a/arch/c6x/platforms/megamod-pic.c b/arch/c6x/platforms/megamod-pic.c
index d487698e978a..ddcb45d7dfa7 100644
--- a/arch/c6x/platforms/megamod-pic.c
+++ b/arch/c6x/platforms/megamod-pic.c
@@ -93,7 +93,7 @@ static struct irq_chip megamod_chip = {
         .irq_unmask     = unmask_megamod,
 };
 
-static void megamod_irq_cascade(unsigned int __irq, struct irq_desc *desc)
+static void megamod_irq_cascade(struct irq_desc *desc)
 {
         struct megamod_cascade_data *cascade;
         struct megamod_pic *pic;
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index 95c39b95e97e..99c96a5e6016 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -11,7 +11,7 @@
 
 
 
-#define NR_syscalls                     319 /* length of syscall table */
+#define NR_syscalls                     321 /* length of syscall table */
 
 /*
  * The following defines stop scripts/checksyscalls.sh from complaining about
diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h
index 461079560c78..98e94e19a5a0 100644
--- a/arch/ia64/include/uapi/asm/unistd.h
+++ b/arch/ia64/include/uapi/asm/unistd.h
@@ -332,5 +332,7 @@
 #define __NR_memfd_create               1340
 #define __NR_bpf                        1341
 #define __NR_execveat                   1342
+#define __NR_userfaultfd                1343
+#define __NR_membarrier                 1344
 
 #endif /* _UAPI_ASM_IA64_UNISTD_H */
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index ae0de7bf5525..37cc7a65cd3e 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1768,5 +1768,7 @@ sys_call_table:
         data8 sys_memfd_create                  // 1340
         data8 sys_bpf
         data8 sys_execveat
+        data8 sys_userfaultfd
+        data8 sys_membarrier
 
         .org sys_call_table + 8*NR_syscalls     // guard against failures to increase NR_syscalls
diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c
index 47b5f90002ab..7ff739e94896 100644
--- a/arch/m68k/amiga/amiints.c
+++ b/arch/m68k/amiga/amiints.c
@@ -46,7 +46,7 @@ static struct irq_chip amiga_irq_chip = {
  * The builtin Amiga hardware interrupt handlers.
  */
 
-static void ami_int1(unsigned int irq, struct irq_desc *desc)
+static void ami_int1(struct irq_desc *desc)
 {
         unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
 
@@ -69,7 +69,7 @@ static void ami_int1(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void ami_int3(unsigned int irq, struct irq_desc *desc)
+static void ami_int3(struct irq_desc *desc)
 {
         unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
 
@@ -92,7 +92,7 @@ static void ami_int3(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void ami_int4(unsigned int irq, struct irq_desc *desc)
+static void ami_int4(struct irq_desc *desc)
 {
         unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
 
@@ -121,7 +121,7 @@ static void ami_int4(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void ami_int5(unsigned int irq, struct irq_desc *desc)
+static void ami_int5(struct irq_desc *desc)
 {
         unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
 
diff --git a/arch/m68k/coldfire/intc-5272.c b/arch/m68k/coldfire/intc-5272.c
index 47371de60427..b0a19e207a63 100644
--- a/arch/m68k/coldfire/intc-5272.c
+++ b/arch/m68k/coldfire/intc-5272.c
@@ -143,12 +143,10 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type)
  * We need to be careful with the masking/acking due to the side effects
  * of masking an interrupt.
  */
-static void intc_external_irq(unsigned int __irq, struct irq_desc *desc)
+static void intc_external_irq(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
-
         irq_desc_get_chip(desc)->irq_ack(&desc->irq_data);
-        handle_simple_irq(irq, desc);
+        handle_simple_irq(desc);
 }
 
 static struct irq_chip intc_irq_chip = {
diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h
index 81ca118d58af..a644f4a53b94 100644
--- a/arch/m68k/include/asm/irq.h
+++ b/arch/m68k/include/asm/irq.h
@@ -64,8 +64,7 @@ extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
                                                       struct pt_regs *));
 extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
 extern void m68k_setup_irq_controller(struct irq_chip *,
-                                      void (*handle)(unsigned int irq,
-                                                     struct irq_desc *desc),
+                                      void (*handle)(struct irq_desc *desc),
                                       unsigned int irq, unsigned int cnt);
 
 extern unsigned int irq_canonicalize(unsigned int irq);
diff --git a/arch/m68k/include/asm/mac_via.h b/arch/m68k/include/asm/mac_via.h
index fe3fc9ae1b69..53c632c85b03 100644
--- a/arch/m68k/include/asm/mac_via.h
+++ b/arch/m68k/include/asm/mac_via.h
@@ -261,7 +261,7 @@ extern void via_irq_enable(int);
 extern void via_irq_disable(int);
 extern void via_nubus_irq_startup(int irq);
 extern void via_nubus_irq_shutdown(int irq);
-extern void via1_irq(unsigned int irq, struct irq_desc *desc);
+extern void via1_irq(struct irq_desc *desc);
 extern void via1_set_head(int);
 extern int via2_scsi_drq_pending(void);
 
diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c
index 3fe0e43d44f6..f6f7d42713ec 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -45,7 +45,7 @@ void __init baboon_init(void)
  * Baboon interrupt handler. This works a lot like a VIA.
  */
 
-static void baboon_irq(unsigned int irq, struct irq_desc *desc)
+static void baboon_irq(struct irq_desc *desc)
 {
         int irq_bit, irq_num;
         unsigned char events;
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 191610d97689..55d6592783f5 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -63,7 +63,7 @@ void __init oss_nubus_init(void)
  * Handle miscellaneous OSS interrupts.
  */
 
-static void oss_irq(unsigned int __irq, struct irq_desc *desc)
+static void oss_irq(struct irq_desc *desc)
 {
         int events = oss->irq_pending &
                 (OSS_IP_IOPSCC | OSS_IP_SCSI | OSS_IP_IOPISM);
@@ -99,7 +99,7 @@ static void oss_irq(unsigned int __irq, struct irq_desc *desc)
  * Unlike the VIA/RBV this is on its own autovector interrupt level.
  */
 
-static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc)
+static void oss_nubus_irq(struct irq_desc *desc)
 {
         int events, irq_bit, i;
 
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index 3b9e302e7a37..cd38f29955c8 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -113,7 +113,7 @@ void __init psc_init(void)
  * PSC interrupt handler. It's a lot like the VIA interrupt handler.
  */
 
-static void psc_irq(unsigned int __irq, struct irq_desc *desc)
+static void psc_irq(struct irq_desc *desc)
 {
         unsigned int offset = (unsigned int)irq_desc_get_handler_data(desc);
         unsigned int irq = irq_desc_get_irq(desc);
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index e198dec868e4..ce56e04386e7 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -446,7 +446,7 @@ void via_nubus_irq_shutdown(int irq)
  * via6522.c :-), disable/pending masks added.
  */
 
-void via1_irq(unsigned int irq, struct irq_desc *desc)
+void via1_irq(struct irq_desc *desc)
 {
         int irq_num;
         unsigned char irq_bit, events;
@@ -467,7 +467,7 @@ void via1_irq(unsigned int irq, struct irq_desc *desc)
         } while (events >= irq_bit);
 }
 
-static void via2_irq(unsigned int irq, struct irq_desc *desc)
+static void via2_irq(struct irq_desc *desc)
 {
         int irq_num;
         unsigned char irq_bit, events;
@@ -493,7 +493,7 @@ static void via2_irq(unsigned int irq, struct irq_desc *desc)
  * VIA2 dispatcher as a fast interrupt handler.
  */
 
-void via_nubus_irq(unsigned int irq, struct irq_desc *desc)
+static void via_nubus_irq(struct irq_desc *desc)
 {
         int slot_irq;
         unsigned char slot_bit, events;
diff --git a/arch/metag/kernel/irq.c b/arch/metag/kernel/irq.c
index a336094a7a6c..3074b64793e6 100644
--- a/arch/metag/kernel/irq.c
+++ b/arch/metag/kernel/irq.c
@@ -94,13 +94,11 @@ void do_IRQ(int irq, struct pt_regs *regs)
                         "MOV   D0.5,%0\n"
                         "MOV   D1Ar1,%1\n"
                         "MOV   D1RtP,%2\n"
-                        "MOV   D0Ar2,%3\n"
                         "SWAP  A0StP,D0.5\n"
                         "SWAP  PC,D1RtP\n"
                         "MOV   A0StP,D0.5\n"
                         :
-                        : "r" (isp), "r" (irq), "r" (desc->handle_irq),
-                          "r" (desc)
+                        : "r" (isp), "r" (desc), "r" (desc->handle_irq)
                         : "memory", "cc", "D1Ar1", "D0Ar2", "D1Ar3", "D0Ar4",
                           "D1Ar5", "D0Ar6", "D0Re0", "D1Re0", "D0.4", "D1RtP",
                           "D0.5"
diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index 4c496c50edf6..da9f9220048f 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -851,7 +851,7 @@ static struct syscore_ops alchemy_gpic_pmops = {
 
 /* create chained handlers for the 4 IC requests to the MIPS IRQ ctrl */
 #define DISP(name, base, addr)                                                \
-static void au1000_##name##_dispatch(unsigned int irq, struct irq_desc *d)    \
+static void au1000_##name##_dispatch(struct irq_desc *d)                      \
 {                                                                             \
         unsigned long r = __raw_readl((void __iomem *)KSEG1ADDR(addr));       \
         if (likely(r))                                                        \
@@ -865,7 +865,7 @@ DISP(ic0r1, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ1INT)
 DISP(ic1r0, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ0INT)
 DISP(ic1r1, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ1INT)
 
-static void alchemy_gpic_dispatch(unsigned int irq, struct irq_desc *d)
+static void alchemy_gpic_dispatch(struct irq_desc *d)
 {
         int i = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_PRIENC);
         generic_handle_irq(ALCHEMY_GPIC_INT_BASE + i);
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index 324ad72d7c36..faeddf119fd4 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -86,7 +86,7 @@ EXPORT_SYMBOL_GPL(bcsr_mod);
 /*
  * DB1200/PB1200 CPLD IRQ muxer
  */
-static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
+static void bcsr_csc_handler(struct irq_desc *d)
 {
         unsigned short bisr = __raw_readw(bcsr_virt + BCSR_REG_INTSTAT);
         struct irq_chip *chip = irq_desc_get_chip(d);
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index ec9a371f1e62..8da996142d6a 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -69,7 +69,7 @@ static struct irqaction ar2315_ahb_err_interrupt  = {
         .name           = "ar2315-ahb-error",
 };
 
-static void ar2315_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar2315_misc_irq_handler(struct irq_desc *desc)
 {
         u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
                       ar2315_rst_reg_read(AR2315_IMR);
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index e63e38fa4880..acd55a9cffe3 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -73,7 +73,7 @@ static struct irqaction ar5312_ahb_err_interrupt  = {
         .name    = "ar5312-ahb-error",
 };
 
-static void ar5312_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar5312_misc_irq_handler(struct irq_desc *desc)
 {
         u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
                       ar5312_rst_reg_read(AR5312_IMR);
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index 807132b838b2..15ecb4831e12 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -26,7 +26,7 @@
 #include "common.h"
 #include "machtypes.h"
 
-static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ath79_misc_irq_handler(struct irq_desc *desc)
 {
         void __iomem *base = ath79_reset_base;
         u32 pending;
@@ -119,7 +119,7 @@ static void __init ath79_misc_irq_init(void)
         irq_set_chained_handler(ATH79_CPU_IRQ(6), ath79_misc_irq_handler);
 }
 
-static void ar934x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void ar934x_ip2_irq_dispatch(struct irq_desc *desc)
 {
         u32 status;
 
@@ -148,7 +148,7 @@ static void ar934x_ip2_irq_init(void)
         irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch);
 }
 
-static void qca955x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void qca955x_ip2_irq_dispatch(struct irq_desc *desc)
 {
         u32 status;
 
@@ -171,7 +171,7 @@ static void qca955x_ip2_irq_dispatch(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void qca955x_ip3_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void qca955x_ip3_irq_dispatch(struct irq_desc *desc)
 {
         u32 status;
 
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index f26c3c661cca..0352bc8d56b3 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2221,7 +2221,7 @@ static irqreturn_t octeon_irq_cib_handler(int my_irq, void *data)
                         if (irqd_get_trigger_type(irq_data) &
                                 IRQ_TYPE_EDGE_BOTH)
                                 cvmx_write_csr(host_data->raw_reg, 1ull << i);
-                        generic_handle_irq_desc(irq, desc);
+                        generic_handle_irq_desc(desc);
                 }
         }
 
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index e8c8d9d0c45f..3a54dbca9f7e 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -128,6 +128,7 @@ struct kvm_vcpu_stat {
         u32 msa_disabled_exits;
         u32 flush_dcache_exits;
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
 };
 
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index 2a4c128277e4..be52c2125d71 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -57,8 +57,8 @@
 #include <asm/mach-netlogic/multi-node.h>
 
 struct irq_desc;
-void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc);
-void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc);
+void nlm_smp_function_ipi_handler(struct irq_desc *desc);
+void nlm_smp_resched_ipi_handler(struct irq_desc *desc);
 void nlm_smp_irq_init(int hwcpuid);
 void nlm_boot_secondary_cpus(void);
 int nlm_wakeup_secondary_cpus(void);
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c
index 6cd69fdaa1c5..a74e181058b0 100644
--- a/arch/mips/jz4740/gpio.c
+++ b/arch/mips/jz4740/gpio.c
@@ -291,7 +291,7 @@ static void jz_gpio_check_trigger_both(struct jz_gpio_chip *chip, unsigned int i
         writel(mask, reg);
 }
 
-static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
+static void jz_gpio_irq_demux_handler(struct irq_desc *desc)
 {
         uint32_t flag;
         unsigned int gpio_irq;
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index cd4c129ce743..49ff3bfc007e 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -55,6 +55,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "msa_disabled", VCPU_STAT(msa_disabled_exits), KVM_STAT_VCPU },
         { "flush_dcache", VCPU_STAT(flush_dcache_exits), KVM_STAT_VCPU },
         { "halt_successful_poll", VCPU_STAT(halt_successful_poll), KVM_STAT_VCPU },
+        { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), KVM_STAT_VCPU },
         { "halt_wakeup",  VCPU_STAT(halt_wakeup),        KVM_STAT_VCPU },
         {NULL}
 };
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index 0136b4f9c9cd..10d86d54880a 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -82,7 +82,7 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 }
 
 /* IRQ_IPI_SMP_FUNCTION Handler */
-void nlm_smp_function_ipi_handler(unsigned int __irq, struct irq_desc *desc)
+void nlm_smp_function_ipi_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         clear_c0_eimr(irq);
@@ -92,7 +92,7 @@ void nlm_smp_function_ipi_handler(unsigned int __irq, struct irq_desc *desc)
 }
 
 /* IRQ_IPI_SMP_RESCHEDULE  handler */
-void nlm_smp_resched_ipi_handler(unsigned int __irq, struct irq_desc *desc)
+void nlm_smp_resched_ipi_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         clear_c0_eimr(irq);
diff --git a/arch/mips/pci/pci-ar2315.c b/arch/mips/pci/pci-ar2315.c
index f8d0acb4f973..b4fa6413c4e5 100644
--- a/arch/mips/pci/pci-ar2315.c
+++ b/arch/mips/pci/pci-ar2315.c
@@ -318,7 +318,7 @@ static int ar2315_pci_host_setup(struct ar2315_pci_ctrl *apc)
         return 0;
 }
 
-static void ar2315_pci_irq_handler(unsigned irq, struct irq_desc *desc)
+static void ar2315_pci_irq_handler(struct irq_desc *desc)
 {
         struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc);
         u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) &
diff --git a/arch/mips/pci/pci-ar71xx.c b/arch/mips/pci/pci-ar71xx.c
index ad35a5e6a56c..7db963deec73 100644
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -226,7 +226,7 @@ static struct pci_ops ar71xx_pci_ops = {
         .write  = ar71xx_pci_write_config,
 };
 
-static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ar71xx_pci_irq_handler(struct irq_desc *desc)
 {
         struct ar71xx_pci_controller *apc;
         void __iomem *base = ath79_reset_base;
diff --git a/arch/mips/pci/pci-ar724x.c b/arch/mips/pci/pci-ar724x.c
index 907d11dd921b..2013dad700df 100644
--- a/arch/mips/pci/pci-ar724x.c
+++ b/arch/mips/pci/pci-ar724x.c
@@ -225,7 +225,7 @@ static struct pci_ops ar724x_pci_ops = {
         .write  = ar724x_pci_write,
 };
 
-static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ar724x_pci_irq_handler(struct irq_desc *desc)
 {
         struct ar724x_pci_controller *apc;
         void __iomem *base;
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 53c8efaf1572..ed6732f9aa87 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -129,7 +129,7 @@ static void rt3883_pci_write_cfg32(struct rt3883_pci_controller *rpc,
         rt3883_pci_w32(rpc, val, RT3883_PCI_REG_CFGDATA);
 }
 
-static void rt3883_pci_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void rt3883_pci_irq_handler(struct irq_desc *desc)
 {
         struct rt3883_pci_controller *rpc;
         u32 pending;
diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index 8c624a8b9ea2..4cf77f358395 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -96,7 +96,7 @@ unsigned int get_c0_compare_int(void)
         return CP0_LEGACY_COMPARE_IRQ;
 }
 
-static void ralink_intc_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ralink_intc_irq_handler(struct irq_desc *desc)
 {
         u32 pending = rt_intc_r32(INTC_REG_STATUS0);
 
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 73eddda53b8e..4eec430d8fa8 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -28,6 +28,9 @@ BOOTCFLAGS	+= -m64
 endif
 ifdef CONFIG_CPU_BIG_ENDIAN
 BOOTCFLAGS      += -mbig-endian
+else
+BOOTCFLAGS      += -mlittle-endian
+BOOTCFLAGS      += $(call cc-option,-mabi=elfv2)
 endif
 
 BOOTAFLAGS      := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 98eebbf66340..195886a583ba 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -108,6 +108,7 @@ struct kvm_vcpu_stat {
         u32 dec_exits;
         u32 ext_intr_exits;
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
         u32 dbell_exits;
         u32 gdbell_exits;
diff --git a/arch/powerpc/include/asm/qe_ic.h b/arch/powerpc/include/asm/qe_ic.h
index 25784cc959a0..1e155ca6d33c 100644
--- a/arch/powerpc/include/asm/qe_ic.h
+++ b/arch/powerpc/include/asm/qe_ic.h
@@ -59,14 +59,14 @@ enum qe_ic_grp_id {
 
 #ifdef CONFIG_QUICC_ENGINE
 void qe_ic_init(struct device_node *node, unsigned int flags,
-                void (*low_handler)(unsigned int irq, struct irq_desc *desc),
-                void (*high_handler)(unsigned int irq, struct irq_desc *desc));
+                void (*low_handler)(struct irq_desc *desc),
+                void (*high_handler)(struct irq_desc *desc));
 unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic);
 unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic);
 #else
 static inline void qe_ic_init(struct device_node *node, unsigned int flags,
-                void (*low_handler)(unsigned int irq, struct irq_desc *desc),
-                void (*high_handler)(unsigned int irq, struct irq_desc *desc))
+                void (*low_handler)(struct irq_desc *desc),
+                void (*high_handler)(struct irq_desc *desc))
 {}
 static inline unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic)
 { return 0; }
@@ -78,8 +78,7 @@ void qe_ic_set_highest_priority(unsigned int virq, int high);
 int qe_ic_set_priority(unsigned int virq, unsigned int priority);
 int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high);
 
-static inline void qe_ic_cascade_low_ipic(unsigned int irq,
-                                          struct irq_desc *desc)
+static inline void qe_ic_cascade_low_ipic(struct irq_desc *desc)
 {
         struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
         unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
@@ -88,8 +87,7 @@ static inline void qe_ic_cascade_low_ipic(unsigned int irq,
                 generic_handle_irq(cascade_irq);
 }
 
-static inline void qe_ic_cascade_high_ipic(unsigned int irq,
-                                           struct irq_desc *desc)
+static inline void qe_ic_cascade_high_ipic(struct irq_desc *desc)
 {
         struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
         unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
@@ -98,8 +96,7 @@ static inline void qe_ic_cascade_high_ipic(unsigned int irq,
                 generic_handle_irq(cascade_irq);
 }
 
-static inline void qe_ic_cascade_low_mpic(unsigned int irq,
-                                          struct irq_desc *desc)
+static inline void qe_ic_cascade_low_mpic(struct irq_desc *desc)
 {
         struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
         unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
@@ -111,8 +108,7 @@ static inline void qe_ic_cascade_low_mpic(unsigned int irq,
         chip->irq_eoi(&desc->irq_data);
 }
 
-static inline void qe_ic_cascade_high_mpic(unsigned int irq,
-                                           struct irq_desc *desc)
+static inline void qe_ic_cascade_high_mpic(struct irq_desc *desc)
 {
         struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
         unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
@@ -124,8 +120,7 @@ static inline void qe_ic_cascade_high_mpic(unsigned int irq,
         chip->irq_eoi(&desc->irq_data);
 }
 
-static inline void qe_ic_cascade_muxed_mpic(unsigned int irq,
-                                            struct irq_desc *desc)
+static inline void qe_ic_cascade_muxed_mpic(struct irq_desc *desc)
 {
         struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
         unsigned int cascade_irq;
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 71f2b3f02cf8..4d65499ee1c1 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -368,3 +368,4 @@ SYSCALL_SPU(memfd_create)
 SYSCALL_SPU(bpf)
 COMPAT_SYS(execveat)
 PPC64ONLY(switch_endian)
+SYSCALL_SPU(userfaultfd)
diff --git a/arch/powerpc/include/asm/tsi108_pci.h b/arch/powerpc/include/asm/tsi108_pci.h
index 5653d7cc3e24..ae59d5b672b0 100644
--- a/arch/powerpc/include/asm/tsi108_pci.h
+++ b/arch/powerpc/include/asm/tsi108_pci.h
@@ -39,7 +39,7 @@
 
 extern int tsi108_setup_pci(struct device_node *dev, u32 cfg_phys, int primary);
 extern void tsi108_pci_int_init(struct device_node *node);
-extern void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc);
+extern void tsi108_irq_cascade(struct irq_desc *desc);
 extern void tsi108_clear_pci_cfg_error(void);
 
 #endif                          /*  _ASM_POWERPC_TSI108_PCI_H */
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index f4f8b667d75b..4a055b6c2a64 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,7 +12,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define __NR_syscalls           364
+#define __NR_syscalls           365
 
 #define __NR__exit __NR_exit
 #define NR_syscalls     __NR_syscalls
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index e4aa173dae62..6ad58d4c879b 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -386,5 +386,6 @@
 #define __NR_bpf                361
 #define __NR_execveat           362
 #define __NR_switch_endian      363
+#define __NR_userfaultfd        364
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 45096033d37b..290559df1e8b 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -441,7 +441,7 @@ void migrate_irqs(void)
 
                 chip = irq_data_get_irq_chip(data);
 
-                cpumask_and(mask, data->affinity, map);
+                cpumask_and(mask, irq_data_get_affinity_mask(data), map);
                 if (cpumask_any(mask) >= nr_cpu_ids) {
                         pr_warn("Breaking affinity for irq %i\n", irq);
                         cpumask_copy(mask, map);
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index bb02e9f6944e..ad8c9db61237 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -38,6 +38,7 @@
 #include <asm/udbg.h>
 #include <asm/mmu_context.h>
 #include <asm/epapr_hcalls.h>
+#include <asm/code-patching.h>
 
 #define DBG(fmt...)
 
@@ -109,6 +110,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr)
  * This is called very early on the boot process, after a minimal
  * MMU environment has been set up but before MMU_init is called.
  */
+extern unsigned int memset_nocache_branch; /* Insn to be replaced by NOP */
+
 notrace void __init machine_init(u64 dt_ptr)
 {
         lockdep_init();
@@ -116,6 +119,9 @@ notrace void __init machine_init(u64 dt_ptr)
         /* Enable early debugging if any specified (see udbg.h) */
         udbg_early_init();
 
+        patch_instruction((unsigned int *)&memcpy, PPC_INST_NOP);
+        patch_instruction(&memset_nocache_branch, PPC_INST_NOP);
+
         /* Do some early initialization based on the flat device tree */
         early_init_devtree(__va(dt_ptr));
 
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d75bf325f54a..cf009167d208 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -53,6 +53,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "ext_intr",    VCPU_STAT(ext_intr_exits) },
         { "queue_intr",  VCPU_STAT(queue_intr) },
         { "halt_successful_poll", VCPU_STAT(halt_successful_poll), },
+        { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), },
         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
         { "pf_storage",  VCPU_STAT(pf_storage) },
         { "sp_storage",  VCPU_STAT(sp_storage) },
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index ae458f0fd061..fd5875179e5c 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -63,6 +63,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "dec",        VCPU_STAT(dec_exits) },
         { "ext_intr",   VCPU_STAT(ext_intr_exits) },
         { "halt_successful_poll", VCPU_STAT(halt_successful_poll) },
+        { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll) },
         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
         { "doorbell", VCPU_STAT(dbell_exits) },
         { "guest doorbell", VCPU_STAT(gdbell_exits) },
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
index 2ef50c629470..c44df2dbedd5 100644
--- a/arch/powerpc/lib/copy_32.S
+++ b/arch/powerpc/lib/copy_32.S
@@ -73,6 +73,10 @@ CACHELINE_MASK = (L1_CACHE_BYTES-1)
  * Use dcbz on the complete cache lines in the destination
  * to set them to zero.  This requires that the destination
  * area is cacheable.  -- paulus
+ *
+ * During early init, cache might not be active yet, so dcbz cannot be used.
+ * We therefore skip the optimised bloc that uses dcbz. This jump is
+ * replaced by a nop once cache is active. This is done in machine_init()
  */
 _GLOBAL(memset)
         rlwimi  r4,r4,8,16,23
@@ -88,6 +92,8 @@ _GLOBAL(memset)
         subf    r6,r0,r6
         cmplwi  0,r4,0
         bne     2f      /* Use normal procedure if r4 is not zero */
+_GLOBAL(memset_nocache_branch)
+        b       2f      /* Skip optimised bloc until cache is enabled */
 
         clrlwi  r7,r6,32-LG_CACHELINE_BYTES
         add     r8,r7,r5
@@ -128,6 +134,10 @@ _GLOBAL(memset)
  * the destination area is cacheable.
  * We only use this version if the source and dest don't overlap.
  * -- paulus.
+ *
+ * During early init, cache might not be active yet, so dcbz cannot be used.
+ * We therefore jump to generic_memcpy which doesn't use dcbz. This jump is
+ * replaced by a nop once cache is active. This is done in machine_init()
  */
 _GLOBAL(memmove)
         cmplw   0,r3,r4
@@ -135,6 +145,7 @@ _GLOBAL(memmove)
         /* fall through */
 
 _GLOBAL(memcpy)
+        b       generic_memcpy
         add     r7,r3,r5                /* test if the src & dst overlap */
         add     r8,r4,r5
         cmplw   0,r4,r7
diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c
index 43dafb9d6a46..4d87122cf6a7 100644
--- a/arch/powerpc/mm/hugepage-hash64.c
+++ b/arch/powerpc/mm/hugepage-hash64.c
@@ -85,7 +85,6 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid,
         BUG_ON(index >= 4096);
 
         vpn = hpt_vpn(ea, vsid, ssize);
-        hash = hpt_hash(vpn, shift, ssize);
         hpte_slot_array = get_hpte_slot_array(pmdp);
         if (psize == MMU_PAGE_4K) {
                 /*
@@ -101,6 +100,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid,
         valid = hpte_valid(hpte_slot_array, index);
         if (valid) {
                 /* update the hpte bits */
+                hash = hpt_hash(vpn, shift, ssize);
                 hidx =  hpte_hash_index(hpte_slot_array, index);
                 if (hidx & _PTEIDX_SECONDARY)
                         hash = ~hash;
@@ -126,6 +126,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid,
         if (!valid) {
                 unsigned long hpte_group;
 
+                hash = hpt_hash(vpn, shift, ssize);
                 /* insert new entry */
                 pa = pmd_pfn(__pmd(old_pmd)) << PAGE_SHIFT;
                 new_pmd |= _PAGE_HASHPTE;
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index 11090ab4bf59..0035d146df73 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -104,9 +104,10 @@ cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp,
         return irq_linear_revmap(cpld_pic_host, cpld_irq);
 }
 
-static void
-cpld_pic_cascade(unsigned int irq, struct irq_desc *desc)
+static void cpld_pic_cascade(struct irq_desc *desc)
 {
+        unsigned int irq;
+
         irq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status,
                 &cpld_regs->pci_mask);
         if (irq != NO_IRQ) {
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index 32cae33c4266..8fb95480fd73 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -80,7 +80,7 @@ static struct irq_chip media5200_irq_chip = {
         .irq_mask_ack = media5200_irq_mask,
 };
 
-void media5200_irq_cascade(unsigned int virq, struct irq_desc *desc)
+static void media5200_irq_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         int sub_virq, val;
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
index 63016621aff8..78ac19aefa4d 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
@@ -191,7 +191,7 @@ static struct irq_chip mpc52xx_gpt_irq_chip = {
         .irq_set_type = mpc52xx_gpt_irq_set_type,
 };
 
-void mpc52xx_gpt_irq_cascade(unsigned int virq, struct irq_desc *desc)
+static void mpc52xx_gpt_irq_cascade(struct irq_desc *desc)
 {
         struct mpc52xx_gpt_priv *gpt = irq_desc_get_handler_data(desc);
         int sub_virq;
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 2944bc84b9d6..4fe2074c88cb 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -196,7 +196,7 @@ static int mpc52xx_extirq_set_type(struct irq_data *d, unsigned int flow_type)
         ctrl_reg |= (type << (22 - (l2irq * 2)));
         out_be32(&intr->ctrl, ctrl_reg);
 
-        __irq_set_handler_locked(d->irq, handler);
+        irq_set_handler_locked(d, handler);
 
         return 0;
 }
diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 74861a7fb807..60e89fc9c753 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -78,7 +78,7 @@ static struct irq_chip pq2ads_pci_ic = {
         .irq_disable = pq2ads_pci_mask_irq
 };
 
-static void pq2ads_pci_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void pq2ads_pci_irq_demux(struct irq_desc *desc)
 {
         struct pq2ads_pci_pic *priv = irq_desc_get_handler_data(desc);
         u32 stat, mask, pend;
diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index 7bfb9b184dd4..23791de7b688 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -49,7 +49,7 @@ int __init mpc85xx_common_publish_devices(void)
         return of_platform_bus_probe(NULL, mpc85xx_common_ids, NULL);
 }
 #ifdef CONFIG_CPM2
-static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
+static void cpm2_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         int cascade_irq;
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index b0753e222086..5ac70de3e48a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -192,8 +192,7 @@ void mpc85xx_cds_fixup_bus(struct pci_bus *bus)
 }
 
 #ifdef CONFIG_PPC_I8259
-static void mpc85xx_8259_cascade_handler(unsigned int irq,
-                                         struct irq_desc *desc)
+static void mpc85xx_8259_cascade_handler(struct irq_desc *desc)
 {
         unsigned int cascade_irq = i8259_irq();
 
@@ -202,7 +201,7 @@ static void mpc85xx_8259_cascade_handler(unsigned int irq,
                 generic_handle_irq(cascade_irq);
 
         /* check for any interrupts from the shared IRQ line */
-        handle_fasteoi_irq(irq, desc);
+        handle_fasteoi_irq(desc);
 }
 
 static irqreturn_t mpc85xx_8259_cascade_action(int irq, void *dev_id)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index ffdf02121a7c..f858306dba6a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -46,7 +46,7 @@
 #endif
 
 #ifdef CONFIG_PPC_I8259
-static void mpc85xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void mpc85xx_8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index 55a9682b9529..b02d6a5bb035 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -91,9 +91,10 @@ static inline unsigned int socrates_fpga_pic_get_irq(unsigned int irq)
                         (irq_hw_number_t)i);
 }
 
-void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc)
+static void socrates_fpga_pic_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
+        unsigned int irq = irq_desc_get_irq(desc);
         unsigned int cascade_irq;
 
         /*
diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c
index d5b98c0f958a..845defa1fd19 100644
--- a/arch/powerpc/platforms/86xx/pic.c
+++ b/arch/powerpc/platforms/86xx/pic.c
@@ -17,7 +17,7 @@
 #include <asm/i8259.h>
 
 #ifdef CONFIG_PPC_I8259
-static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void mpc86xx_8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index d3037747031d..c289fc77b4ba 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -214,7 +214,7 @@ void mpc8xx_restart(char *cmd)
         panic("Restart failed\n");
 }
 
-static void cpm_cascade(unsigned int irq, struct irq_desc *desc)
+static void cpm_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         int cascade_irq = cpm_get_irq();
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 306888acb737..e0e68a1c0d3c 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -93,7 +93,7 @@ static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val)
         dcr_write(msic->dcr_host, dcr_n, val);
 }
 
-static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
+static void axon_msi_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct axon_msic *msic = irq_desc_get_handler_data(desc);
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index a15f1efc295f..9f609fc8d331 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -99,11 +99,12 @@ static void iic_ioexc_eoi(struct irq_data *d)
 {
 }
 
-static void iic_ioexc_cascade(unsigned int irq, struct irq_desc *desc)
+static void iic_ioexc_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct cbe_iic_regs __iomem *node_iic =
                 (void __iomem *)irq_desc_get_handler_data(desc);
+        unsigned int irq = irq_desc_get_irq(desc);
         unsigned int base = (irq & 0xffffff00) | IIC_IRQ_TYPE_IOEXC;
         unsigned long bits, ack;
         int cascade;
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 1f72f4ab6353..9d27de62dc62 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -199,7 +199,7 @@ static const struct irq_domain_ops spider_host_ops = {
         .xlate = spider_host_xlate,
 };
 
-static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc)
+static void spider_irq_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct spider_pic *pic = irq_desc_get_handler_data(desc);
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 15ebc4e8a151..987d1b8d68e3 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -363,7 +363,7 @@ void __init chrp_setup_arch(void)
         if (ppc_md.progress) ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0x0);
 }
 
-static void chrp_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void chrp_8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 9dd154d6f89a..9b7975706bfc 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -120,8 +120,7 @@ static unsigned int __hlwd_pic_get_irq(struct irq_domain *h)
         return irq_linear_revmap(h, irq);
 }
 
-static void hlwd_pic_irq_cascade(unsigned int cascade_virq,
-                                      struct irq_desc *desc)
+static void hlwd_pic_irq_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct irq_domain *irq_domain = irq_desc_get_handler_data(desc);
diff --git a/arch/powerpc/platforms/embedded6xx/mvme5100.c b/arch/powerpc/platforms/embedded6xx/mvme5100.c
index 1613303177e6..8f65aa3747f5 100644
--- a/arch/powerpc/platforms/embedded6xx/mvme5100.c
+++ b/arch/powerpc/platforms/embedded6xx/mvme5100.c
@@ -42,7 +42,7 @@
 static phys_addr_t pci_membase;
 static u_char *restart;
 
-static void mvme5100_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void mvme5100_8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/powerpc/platforms/pasemi/msi.c b/arch/powerpc/platforms/pasemi/msi.c
index e66ef1943338..b304a9fe55cc 100644
--- a/arch/powerpc/platforms/pasemi/msi.c
+++ b/arch/powerpc/platforms/pasemi/msi.c
@@ -63,6 +63,7 @@ static struct irq_chip mpic_pasemi_msi_chip = {
 static void pasemi_msi_teardown_msi_irqs(struct pci_dev *pdev)
 {
         struct msi_desc *entry;
+        irq_hw_number_t hwirq;
 
         pr_debug("pasemi_msi_teardown_msi_irqs, pdev %p\n", pdev);
 
@@ -70,10 +71,10 @@ static void pasemi_msi_teardown_msi_irqs(struct pci_dev *pdev)
                 if (entry->irq == NO_IRQ)
                         continue;
 
+                hwirq = virq_to_hw(entry->irq);
                 irq_set_msi_desc(entry->irq, NULL);
-                msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap,
-                                       virq_to_hw(entry->irq), ALLOC_CHUNK);
                 irq_dispose_mapping(entry->irq);
+                msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap, hwirq, ALLOC_CHUNK);
         }
 
         return;
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 2927cd5c8303..414fd1a00fda 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2049,9 +2049,23 @@ static long pnv_pci_ioda2_setup_default_config(struct pnv_ioda_pe *pe)
         struct iommu_table *tbl = NULL;
         long rc;
 
+        /*
+         * crashkernel= specifies the kdump kernel's maximum memory at
+         * some offset and there is no guaranteed the result is a power
+         * of 2, which will cause errors later.
+         */
+        const u64 max_memory = __rounddown_pow_of_two(memory_hotplug_max());
+
+        /*
+         * In memory constrained environments, e.g. kdump kernel, the
+         * DMA window can be larger than available memory, which will
+         * cause errors later.
+         */
+        const u64 window_size = min((u64)pe->table_group.tce32_size, max_memory);
+
         rc = pnv_pci_ioda2_create_table(&pe->table_group, 0,
                         IOMMU_PAGE_SHIFT_4K,
-                        pe->table_group.tce32_size,
+                        window_size,
                         POWERNV_IOMMU_DEFAULT_LEVELS, &tbl);
         if (rc) {
                 pe_err(pe, "Failed to create 32-bit TCE table, err %ld",
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 9b2480b265c0..f2dd77234240 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -99,6 +99,7 @@ void pnv_teardown_msi_irqs(struct pci_dev *pdev)
         struct pci_controller *hose = pci_bus_to_host(pdev->bus);
         struct pnv_phb *phb = hose->private_data;
         struct msi_desc *entry;
+        irq_hw_number_t hwirq;
 
         if (WARN_ON(!phb))
                 return;
@@ -106,10 +107,10 @@ void pnv_teardown_msi_irqs(struct pci_dev *pdev)
         for_each_pci_msi_entry(entry, pdev) {
                 if (entry->irq == NO_IRQ)
                         continue;
+                hwirq = virq_to_hw(entry->irq);
                 irq_set_msi_desc(entry->irq, NULL);
-                msi_bitmap_free_hwirqs(&phb->msi_bmp,
-                        virq_to_hw(entry->irq) - phb->msi_base, 1);
                 irq_dispose_mapping(entry->irq);
+                msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq - phb->msi_base, 1);
         }
 }
 #endif /* CONFIG_PCI_MSI */
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 47d9cebe7159..db17827eb746 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -422,8 +422,10 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
 
         dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);
         of_node_put(parent);
-        if (!dn)
+        if (!dn) {
+                dlpar_release_drc(drc_index);
                 return -EINVAL;
+        }
 
         rc = dlpar_attach_node(dn);
         if (rc) {
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 39a74fad3e04..9a83eb71b030 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -111,7 +111,7 @@ static void __init fwnmi_init(void)
                 fwnmi_active = 1;
 }
 
-static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void pseries_8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index a11bd1d433ad..9e86074719a9 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -155,9 +155,9 @@ static int cpm2_set_irq_type(struct irq_data *d, unsigned int flow_type)
 
         irqd_set_trigger_type(d, flow_type);
         if (flow_type & IRQ_TYPE_LEVEL_LOW)
-                __irq_set_handler_locked(d->irq, handle_level_irq);
+                irq_set_handler_locked(d, handle_level_irq);
         else
-                __irq_set_handler_locked(d->irq, handle_edge_irq);
+                irq_set_handler_locked(d, handle_edge_irq);
 
         /* internal IRQ senses are LEVEL_LOW
          * EXT IRQ and Port C IRQ senses are programmable
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 5916da1856a7..48a576aa47b9 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -128,15 +128,16 @@ static void fsl_teardown_msi_irqs(struct pci_dev *pdev)
 {
         struct msi_desc *entry;
         struct fsl_msi *msi_data;
+        irq_hw_number_t hwirq;
 
         for_each_pci_msi_entry(entry, pdev) {
                 if (entry->irq == NO_IRQ)
                         continue;
+                hwirq = virq_to_hw(entry->irq);
                 msi_data = irq_get_chip_data(entry->irq);
                 irq_set_msi_desc(entry->irq, NULL);
-                msi_bitmap_free_hwirqs(&msi_data->bitmap,
-                                       virq_to_hw(entry->irq), 1);
                 irq_dispose_mapping(entry->irq);
+                msi_bitmap_free_hwirqs(&msi_data->bitmap, hwirq, 1);
         }
 
         return;
diff --git a/arch/powerpc/sysdev/ge/ge_pic.c b/arch/powerpc/sysdev/ge/ge_pic.c
index 2bcb78bb3a15..d57b77573068 100644
--- a/arch/powerpc/sysdev/ge/ge_pic.c
+++ b/arch/powerpc/sysdev/ge/ge_pic.c
@@ -91,7 +91,7 @@ static int gef_pic_cascade_irq;
  * should be masked out.
  */
 
-void gef_pic_cascade(unsigned int irq, struct irq_desc *desc)
+static void gef_pic_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq;
diff --git a/arch/powerpc/sysdev/ge/ge_pic.h b/arch/powerpc/sysdev/ge/ge_pic.h
index 908dbd9826b6..5bf7e4b81e36 100644
--- a/arch/powerpc/sysdev/ge/ge_pic.h
+++ b/arch/powerpc/sysdev/ge/ge_pic.h
@@ -1,8 +1,6 @@
 #ifndef __GEF_PIC_H__
 #define __GEF_PIC_H__
 
-
-void gef_pic_cascade(unsigned int, struct irq_desc *);
 unsigned int gef_pic_get_irq(void);
 void gef_pic_init(struct device_node *);
 
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 6b2b68914810..b1297ab1599b 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -624,10 +624,10 @@ static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 
         irqd_set_trigger_type(d, flow_type);
         if (flow_type & IRQ_TYPE_LEVEL_LOW)  {
-                __irq_set_handler_locked(d->irq, handle_level_irq);
+                irq_set_handler_locked(d, handle_level_irq);
                 d->chip = &ipic_level_irq_chip;
         } else {
-                __irq_set_handler_locked(d->irq, handle_edge_irq);
+                irq_set_handler_locked(d, handle_edge_irq);
                 d->chip = &ipic_edge_irq_chip;
         }
 
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index d93a78be4346..9a423975853a 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -55,7 +55,7 @@ static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
                 unsigned int siel = in_be32(&siu_reg->sc_siel);
                 siel |= mpc8xx_irqd_to_bit(d);
                 out_be32(&siu_reg->sc_siel, siel);
-                __irq_set_handler_locked(d->irq, handle_edge_irq);
+                irq_set_handler_locked(d, handle_edge_irq);
         }
         return 0;
 }
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 97a8ae8f94dd..537e5db85a06 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1181,7 +1181,7 @@ static int mpic_host_xlate(struct irq_domain *h, struct device_node *ct,
 }
 
 /* IRQ handler for a secondary MPIC cascaded from another IRQ controller */
-static void mpic_cascade(unsigned int irq, struct irq_desc *desc)
+static void mpic_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct mpic *mpic = irq_desc_get_handler_data(desc);
diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c
index 70fbd5694a8b..2cbc7e29b85f 100644
--- a/arch/powerpc/sysdev/mpic_u3msi.c
+++ b/arch/powerpc/sysdev/mpic_u3msi.c
@@ -107,15 +107,16 @@ static u64 find_u4_magic_addr(struct pci_dev *pdev, unsigned int hwirq)
 static void u3msi_teardown_msi_irqs(struct pci_dev *pdev)
 {
         struct msi_desc *entry;
+        irq_hw_number_t hwirq;
 
         for_each_pci_msi_entry(entry, pdev) {
                 if (entry->irq == NO_IRQ)
                         continue;
 
+                hwirq = virq_to_hw(entry->irq);
                 irq_set_msi_desc(entry->irq, NULL);
-                msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap,
-                                       virq_to_hw(entry->irq), 1);
                 irq_dispose_mapping(entry->irq);
+                msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap, hwirq, 1);
         }
 
         return;
diff --git a/arch/powerpc/sysdev/ppc4xx_msi.c b/arch/powerpc/sysdev/ppc4xx_msi.c
index 24d0470c1698..8fb806135043 100644
--- a/arch/powerpc/sysdev/ppc4xx_msi.c
+++ b/arch/powerpc/sysdev/ppc4xx_msi.c
@@ -124,16 +124,17 @@ void ppc4xx_teardown_msi_irqs(struct pci_dev *dev)
 {
         struct msi_desc *entry;
         struct ppc4xx_msi *msi_data = &ppc4xx_msi;
+        irq_hw_number_t hwirq;
 
         dev_dbg(&dev->dev, "PCIE-MSI: tearing down msi irqs\n");
 
         for_each_pci_msi_entry(entry, dev) {
                 if (entry->irq == NO_IRQ)
                         continue;
+                hwirq = virq_to_hw(entry->irq);
                 irq_set_msi_desc(entry->irq, NULL);
-                msi_bitmap_free_hwirqs(&msi_data->bitmap,
-                                virq_to_hw(entry->irq), 1);
                 irq_dispose_mapping(entry->irq);
+                msi_bitmap_free_hwirqs(&msi_data->bitmap, hwirq, 1);
         }
 }
 
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index 47b352e4bc74..fbcc1f855a7f 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -311,8 +311,8 @@ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic)
 }
 
 void __init qe_ic_init(struct device_node *node, unsigned int flags,
-                void (*low_handler)(unsigned int irq, struct irq_desc *desc),
-                void (*high_handler)(unsigned int irq, struct irq_desc *desc))
+                       void (*low_handler)(struct irq_desc *desc),
+                       void (*high_handler)(struct irq_desc *desc))
 {
         struct qe_ic *qe_ic;
         struct resource res;
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 57b54476e747..379de955aae3 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -428,7 +428,7 @@ void __init tsi108_pci_int_init(struct device_node *node)
         init_pci_source();
 }
 
-void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc)
+void tsi108_irq_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = get_pci_source();
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index d77345338671..6893d8f236df 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -194,7 +194,7 @@ static const struct irq_domain_ops uic_host_ops = {
         .xlate  = irq_domain_xlate_twocell,
 };
 
-void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
+static void uic_irq_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct irq_data *idata = irq_desc_get_irq_data(desc);
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 11ac964d5175..27c936c080a6 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -54,7 +54,7 @@ static void ics_opal_unmask_irq(struct irq_data *d)
         if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
                 return;
 
-        server = xics_get_irq_server(d->irq, d->affinity, 0);
+        server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
         server = ics_opal_mangle_server(server);
 
         rc = opal_set_xive(hw_irq, server, DEFAULT_PRIORITY);
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index d1c625c4cc5a..3854dd41558d 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -47,7 +47,7 @@ static void ics_rtas_unmask_irq(struct irq_data *d)
         if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
                 return;
 
-        server = xics_get_irq_server(d->irq, d->affinity, 0);
+        server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
 
         call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hw_irq, server,
                                 DEFAULT_PRIORITY);
diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c
index 43b8b275bc5c..0f52d7955796 100644
--- a/arch/powerpc/sysdev/xilinx_intc.c
+++ b/arch/powerpc/sysdev/xilinx_intc.c
@@ -222,7 +222,7 @@ int xilinx_intc_get_irq(void)
 /*
  * Support code for cascading to 8259 interrupt controllers
  */
-static void xilinx_i8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void xilinx_i8259_cascade(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned int cascade_irq = i8259_irq();
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 3d012e071647..6ce4a0b7e8da 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -210,6 +210,7 @@ struct kvm_vcpu_stat {
         u32 exit_validity;
         u32 exit_instruction;
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
         u32 instruction_lctl;
         u32 instruction_lctlg;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index c91eb941b444..0a67c40eece9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -63,6 +63,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
         { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
         { "halt_successful_poll", VCPU_STAT(halt_successful_poll) },
+        { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll) },
         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
         { "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
         { "instruction_lctl", VCPU_STAT(instruction_lctl) },
@@ -1574,7 +1575,7 @@ static void kvm_s390_vcpu_request(struct kvm_vcpu *vcpu)
 
 static void kvm_s390_vcpu_request_handled(struct kvm_vcpu *vcpu)
 {
-        atomic_or(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
+        atomic_andnot(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
 }
 
 /*
diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index 6f97a8f0d0d6..6129aef6db76 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -29,7 +29,7 @@
 static void __iomem *se7343_irq_regs;
 struct irq_domain *se7343_irq_domain;
 
-static void se7343_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void se7343_irq_demux(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct irq_chip *chip = irq_data_get_irq_chip(data);
diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
index 60aebd14ccf8..24c74a88290c 100644
--- a/arch/sh/boards/mach-se/7722/irq.c
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -28,7 +28,7 @@
 static void __iomem *se7722_irq_regs;
 struct irq_domain *se7722_irq_domain;
 
-static void se7722_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void se7722_irq_demux(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct irq_chip *chip = irq_data_get_irq_chip(data);
diff --git a/arch/sh/boards/mach-se/7724/irq.c b/arch/sh/boards/mach-se/7724/irq.c
index 9f2033898652..64e681e66c57 100644
--- a/arch/sh/boards/mach-se/7724/irq.c
+++ b/arch/sh/boards/mach-se/7724/irq.c
@@ -92,7 +92,7 @@ static struct irq_chip se7724_irq_chip __read_mostly = {
         .irq_unmask     = enable_se7724_irq,
 };
 
-static void se7724_irq_demux(unsigned int __irq, struct irq_desc *desc)
+static void se7724_irq_demux(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct fpga_irq set = get_fpga_irq(irq);
diff --git a/arch/sh/boards/mach-x3proto/gpio.c b/arch/sh/boards/mach-x3proto/gpio.c
index 24555c364d5b..1fb2cbee25f2 100644
--- a/arch/sh/boards/mach-x3proto/gpio.c
+++ b/arch/sh/boards/mach-x3proto/gpio.c
@@ -60,7 +60,7 @@ static int x3proto_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
         return virq;
 }
 
-static void x3proto_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void x3proto_gpio_irq_handler(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct irq_chip *chip = irq_data_get_irq_chip(data);
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c
index e9735616bdc8..8180092502f7 100644
--- a/arch/sh/cchips/hd6446x/hd64461.c
+++ b/arch/sh/cchips/hd6446x/hd64461.c
@@ -56,7 +56,7 @@ static struct irq_chip hd64461_irq_chip = {
         .irq_unmask     = hd64461_unmask_irq,
 };
 
-static void hd64461_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void hd64461_irq_demux(struct irq_desc *desc)
 {
         unsigned short intv = __raw_readw(HD64461_NIRR);
         unsigned int ext_irq = HD64461_IRQBASE;
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 0299f052a2ef..42efcf85f721 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -53,7 +53,7 @@ static inline unsigned int leon_eirq_get(int cpu)
 }
 
 /* Handle one or multiple IRQs from the extended interrupt controller */
-static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc)
+static void leon_handle_ext_irq(struct irq_desc *desc)
 {
         unsigned int eirq;
         struct irq_bucket *p;
diff --git a/arch/sparc/kernel/leon_pci_grpci1.c b/arch/sparc/kernel/leon_pci_grpci1.c
index 3382f7b3eeef..1e77128a8f88 100644
--- a/arch/sparc/kernel/leon_pci_grpci1.c
+++ b/arch/sparc/kernel/leon_pci_grpci1.c
@@ -357,7 +357,7 @@ static struct irq_chip grpci1_irq = {
 };
 
 /* Handle one or multiple IRQs from the PCI core */
-static void grpci1_pci_flow_irq(unsigned int irq, struct irq_desc *desc)
+static void grpci1_pci_flow_irq(struct irq_desc *desc)
 {
         struct grpci1_priv *priv = grpci1priv;
         int i, ack = 0;
diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c
index 814fb1729b12..f727c4de1316 100644
--- a/arch/sparc/kernel/leon_pci_grpci2.c
+++ b/arch/sparc/kernel/leon_pci_grpci2.c
@@ -498,7 +498,7 @@ static struct irq_chip grpci2_irq = {
 };
 
 /* Handle one or multiple IRQs from the PCI core */
-static void grpci2_pci_flow_irq(unsigned int irq, struct irq_desc *desc)
+static void grpci2_pci_flow_irq(struct irq_desc *desc)
 {
         struct grpci2_priv *priv = grpci2priv;
         int i, ack = 0;
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index b3f73fd764a3..4c017d0d2de8 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -304,17 +304,16 @@ static struct irq_chip tilegx_legacy_irq_chip = {
  * to Linux which just calls handle_level_irq() after clearing the
  * MAC INTx Assert status bit associated with this interrupt.
  */
-static void trio_handle_level_irq(unsigned int __irq, struct irq_desc *desc)
+static void trio_handle_level_irq(struct irq_desc *desc)
 {
         struct pci_controller *controller = irq_desc_get_handler_data(desc);
         gxio_trio_context_t *trio_context = controller->trio;
         uint64_t intx = (uint64_t)irq_desc_get_chip_data(desc);
-        unsigned int irq = irq_desc_get_irq(desc);
         int mac = controller->mac;
         unsigned int reg_offset;
         uint64_t level_mask;
 
-        handle_level_irq(irq, desc);
+        handle_level_irq(desc);
 
         /*
          * Clear the INTx Level status, otherwise future interrupts are
diff --git a/arch/unicore32/kernel/irq.c b/arch/unicore32/kernel/irq.c
index c53729d92e8d..eb1fd0030359 100644
--- a/arch/unicore32/kernel/irq.c
+++ b/arch/unicore32/kernel/irq.c
@@ -112,7 +112,7 @@ static struct irq_chip puv3_low_gpio_chip = {
  * irq_controller_lock held, and IRQs disabled.  Decode the IRQ
  * and call the handler.
  */
-static void puv3_gpio_handler(unsigned int __irq, struct irq_desc *desc)
+static void puv3_gpio_handler(struct irq_desc *desc)
 {
         unsigned int mask, irq;
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7aef2d52daa0..328c8352480c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1006,7 +1006,7 @@ config X86_THERMAL_VECTOR
         depends on X86_MCE_INTEL
 
 config X86_LEGACY_VM86
-        bool "Legacy VM86 support (obsolete)"
+        bool "Legacy VM86 support"
         default n
         depends on X86_32
         ---help---
@@ -1018,19 +1018,20 @@ config X86_LEGACY_VM86
           available to accelerate real mode DOS programs.  However, any
           recent version of DOSEMU, X, or vbetool should be fully
           functional even without kernel VM86 support, as they will all
-          fall back to (pretty well performing) software emulation.
+          fall back to software emulation. Nevertheless, if you are using
+          a 16-bit DOS program where 16-bit performance matters, vm86
+          mode might be faster than emulation and you might want to
+          enable this option.
 
-          Anything that works on a 64-bit kernel is unlikely to need
-          this option, as 64-bit kernels don't, and can't, support V8086
-          mode.  This option is also unrelated to 16-bit protected mode
-          and is not needed to run most 16-bit programs under Wine.
+          Note that any app that works on a 64-bit kernel is unlikely to
+          need this option, as 64-bit kernels don't, and can't, support
+          V8086 mode. This option is also unrelated to 16-bit protected
+          mode and is not needed to run most 16-bit programs under Wine.
 
-          Enabling this option adds considerable attack surface to the
-          kernel and slows down system calls and exception handling.
+          Enabling this option increases the complexity of the kernel
+          and slows down exception handling a tiny bit.
 
-          Unless you use very old userspace or need the last drop of
-          performance in your real mode DOS games and can't use KVM,
-          say N here.
+          If unsure, say N here.
 
 config VM86
        bool
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 477fc28050e4..e6cf2ad350d1 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -241,6 +241,7 @@
 #define X86_FEATURE_AVX512PF    ( 9*32+26) /* AVX-512 Prefetch */
 #define X86_FEATURE_AVX512ER    ( 9*32+27) /* AVX-512 Exponential and Reciprocal */
 #define X86_FEATURE_AVX512CD    ( 9*32+28) /* AVX-512 Conflict Detection */
+#define X86_FEATURE_SHA_NI      ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
 
 /* Extended state features, CPUID level 0x0000000d:1 (eax), word 10 */
 #define X86_FEATURE_XSAVEOPT    (10*32+ 0) /* XSAVEOPT */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c12e845f59e6..349f80a82b82 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -711,6 +711,7 @@ struct kvm_vcpu_stat {
         u32 nmi_window_exits;
         u32 halt_exits;
         u32 halt_successful_poll;
+        u32 halt_attempted_poll;
         u32 halt_wakeup;
         u32 request_irq_exits;
         u32 irq_exits;
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index ce029e4fa7c6..31247b5bff7c 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -97,7 +97,6 @@ struct pv_lazy_ops {
 struct pv_time_ops {
         unsigned long long (*sched_clock)(void);
         unsigned long long (*steal_clock)(int cpu);
-        unsigned long (*get_tsc_khz)(void);
 };
 
 struct pv_cpu_ops {
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 9d51fae1cba3..eaba08076030 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -39,18 +39,27 @@ static inline void queued_spin_unlock(struct qspinlock *lock)
 }
 #endif
 
-#define virt_queued_spin_lock virt_queued_spin_lock
-
-static inline bool virt_queued_spin_lock(struct qspinlock *lock)
+#ifdef CONFIG_PARAVIRT
+#define virt_spin_lock virt_spin_lock
+static inline bool virt_spin_lock(struct qspinlock *lock)
 {
         if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
                 return false;
 
-        while (atomic_cmpxchg(&lock->val, 0, _Q_LOCKED_VAL) != 0)
-                cpu_relax();
+        /*
+         * On hypervisors without PARAVIRT_SPINLOCKS support we fall
+         * back to a Test-and-Set spinlock, because fair locks have
+         * horrible lock 'holder' preemption issues.
+         */
+
+        do {
+                while (atomic_read(&lock->val) != 0)
+                        cpu_relax();
+        } while (atomic_cmpxchg(&lock->val, 0, _Q_LOCKED_VAL) != 0);
 
         return true;
 }
+#endif /* CONFIG_PARAVIRT */
 
 #include <asm-generic/qspinlock.h>
 
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index c42827eb86cf..25f909362b7a 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -338,10 +338,15 @@ done:
 
 static void __init_or_module optimize_nops(struct alt_instr *a, u8 *instr)
 {
+        unsigned long flags;
+
         if (instr[0] != 0x90)
                 return;
 
+        local_irq_save(flags);
         add_nops(instr + (a->instrlen - a->padlen), a->padlen);
+        sync_core();
+        local_irq_restore(flags);
 
         DUMP_BYTES(instr, a->instrlen, "%p: [%d:%d) optimized NOPs: ",
                    instr, a->instrlen - a->padlen, a->padlen);
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 3ca3e46aa405..24e94ce454e2 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -336,6 +336,13 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
         apic_write(APIC_LVTT, lvtt_value);
 
         if (lvtt_value & APIC_LVT_TIMER_TSCDEADLINE) {
+                /*
+                 * See Intel SDM: TSC-Deadline Mode chapter. In xAPIC mode,
+                 * writing to the APIC LVTT and TSC_DEADLINE MSR isn't serialized.
+                 * According to Intel, MFENCE can do the serialization here.
+                 */
+                asm volatile("mfence" : : : "memory");
+
                 printk_once(KERN_DEBUG "TSC deadline timer enabled\n");
                 return;
         }
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 38a76f826530..5c60bb162622 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2522,6 +2522,7 @@ void __init setup_ioapic_dest(void)
         int pin, ioapic, irq, irq_entry;
         const struct cpumask *mask;
         struct irq_data *idata;
+        struct irq_chip *chip;
 
         if (skip_ioapic_setup == 1)
                 return;
@@ -2545,9 +2546,9 @@ void __init setup_ioapic_dest(void)
                 else
                         mask = apic->target_cpus();
 
-                irq_set_affinity(irq, mask);
+                chip = irq_data_get_irq_chip(idata);
+                chip->irq_set_affinity(idata, mask, false);
         }
-
 }
 #endif
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 1bbd0fe2c806..836d11b92811 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -489,10 +489,8 @@ static int apic_set_affinity(struct irq_data *irq_data,
 
         err = assign_irq_vector(irq, data, dest);
         if (err) {
-                struct irq_data *top = irq_get_irq_data(irq);
-
                 if (assign_irq_vector(irq, data,
-                                      irq_data_get_affinity_mask(top)))
+                                      irq_data_get_affinity_mask(irq_data)))
                         pr_err("Failed to recover vector for irq %d\n", irq);
                 return err;
         }
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 07ce52c22ec8..de22ea7ff82f 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1110,10 +1110,10 @@ void print_cpu_info(struct cpuinfo_x86 *c)
         else
                 printk(KERN_CONT "%d86", c->x86);
 
-        printk(KERN_CONT " (fam: %02x, model: %02x", c->x86, c->x86_model);
+        printk(KERN_CONT " (family: 0x%x, model: 0x%x", c->x86, c->x86_model);
 
         if (c->x86_mask || c->cpuid_level >= 0)
-                printk(KERN_CONT ", stepping: %02x)\n", c->x86_mask);
+                printk(KERN_CONT ", stepping: 0x%x)\n", c->x86_mask);
         else
                 printk(KERN_CONT ")\n");
 
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index cd9b6d0b10bf..3fefebfbdf4b 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2316,9 +2316,12 @@ static struct event_constraint *
 intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
                             struct perf_event *event)
 {
-        struct event_constraint *c1 = cpuc->event_constraint[idx];
+        struct event_constraint *c1 = NULL;
         struct event_constraint *c2;
 
+        if (idx >= 0) /* fake does < 0 */
+                c1 = cpuc->event_constraint[idx];
+
         /*
          * first time only
          * - static constraint: no change across incremental scheduling calls
diff --git a/arch/x86/kernel/cpu/perf_event_intel_bts.c b/arch/x86/kernel/cpu/perf_event_intel_bts.c
index 54690e885759..d1c0f254afbe 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_bts.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_bts.c
@@ -222,6 +222,7 @@ static void __bts_event_start(struct perf_event *event)
         if (!buf || bts_buffer_is_full(buf, bts))
                 return;
 
+        event->hw.itrace_started = 1;
         event->hw.state = 0;
 
         if (!buf->snapshot)
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index c80cf6699678..38da8f29a9c8 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -68,11 +68,10 @@ static inline void *current_stack(void)
         return (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1));
 }
 
-static inline int
-execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 {
         struct irq_stack *curstk, *irqstk;
-        u32 *isp, *prev_esp, arg1, arg2;
+        u32 *isp, *prev_esp, arg1;
 
         curstk = (struct irq_stack *) current_stack();
         irqstk = __this_cpu_read(hardirq_stack);
@@ -98,8 +97,8 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
         asm volatile("xchgl     %%ebx,%%esp     \n"
                      "call      *%%edi          \n"
                      "movl      %%ebx,%%esp     \n"
-                     : "=a" (arg1), "=d" (arg2), "=b" (isp)
-                     :  "0" (irq),   "1" (desc),  "2" (isp),
+                     : "=a" (arg1), "=b" (isp)
+                     :  "0" (desc),   "1" (isp),
                         "D" (desc->handle_irq)
                      : "memory", "cc", "ecx");
         return 1;
@@ -150,19 +149,15 @@ void do_softirq_own_stack(void)
 
 bool handle_irq(struct irq_desc *desc, struct pt_regs *regs)
 {
-        unsigned int irq;
-        int overflow;
-
-        overflow = check_stack_overflow();
+        int overflow = check_stack_overflow();
 
         if (IS_ERR_OR_NULL(desc))
                 return false;
 
-        irq = irq_desc_get_irq(desc);
-        if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
+        if (user_mode(regs) || !execute_on_irq_stack(overflow, desc)) {
                 if (unlikely(overflow))
                         print_stack_overflow();
-                generic_handle_irq_desc(irq, desc);
+                generic_handle_irq_desc(desc);
         }
 
         return true;
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index ff16ccb918f2..c767cf2bc80a 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -75,6 +75,6 @@ bool handle_irq(struct irq_desc *desc, struct pt_regs *regs)
         if (unlikely(IS_ERR_OR_NULL(desc)))
                 return false;
 
-        generic_handle_irq_desc(irq_desc_get_irq(desc), desc);
+        generic_handle_irq_desc(desc);
         return true;
 }
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 2bcc0525f1c1..6acc9dd91f36 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -58,7 +58,7 @@ static struct ldt_struct *alloc_ldt_struct(int size)
         if (alloc_size > PAGE_SIZE)
                 new_ldt->entries = vzalloc(alloc_size);
         else
-                new_ldt->entries = kzalloc(PAGE_SIZE, GFP_KERNEL);
+                new_ldt->entries = (void *)get_zeroed_page(GFP_KERNEL);
 
         if (!new_ldt->entries) {
                 kfree(new_ldt);
@@ -95,7 +95,7 @@ static void free_ldt_struct(struct ldt_struct *ldt)
         if (ldt->size * LDT_ENTRY_SIZE > PAGE_SIZE)
                 vfree(ldt->entries);
         else
-                kfree(ldt->entries);
+                free_page((unsigned long)ldt->entries);
         kfree(ldt);
 }
 
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 84b8ef82a159..1b55de1267cf 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -131,8 +131,8 @@ void dma_generic_free_coherent(struct device *dev, size_t size, void *vaddr,
 
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 {
-        *gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
         *gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+        *gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
 
         if (!*dev)
                 *dev = &x86_dma_fallback_dev;
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index c8d52cb4cb6e..c3f7602cd038 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -21,6 +21,7 @@
 #include <asm/hypervisor.h>
 #include <asm/nmi.h>
 #include <asm/x86_init.h>
+#include <asm/geode.h>
 
 unsigned int __read_mostly cpu_khz;     /* TSC clocks / usec, not used here */
 EXPORT_SYMBOL(cpu_khz);
@@ -1013,15 +1014,17 @@ EXPORT_SYMBOL_GPL(mark_tsc_unstable);
 
 static void __init check_system_tsc_reliable(void)
 {
-#ifdef CONFIG_MGEODE_LX
-        /* RTSC counts during suspend */
+#if defined(CONFIG_MGEODEGX1) || defined(CONFIG_MGEODE_LX) || defined(CONFIG_X86_GENERIC)
+        if (is_geode_lx()) {
+                /* RTSC counts during suspend */
 #define RTSC_SUSP 0x100
-        unsigned long res_low, res_high;
+                unsigned long res_low, res_high;
 
-        rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
-        /* Geode_LX - the OLPC CPU has a very reliable TSC */
-        if (res_low & RTSC_SUSP)
-                tsc_clocksource_reliable = 1;
+                rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
+                /* Geode_LX - the OLPC CPU has a very reliable TSC */
+                if (res_low & RTSC_SUSP)
+                        tsc_clocksource_reliable = 1;
+        }
 #endif
         if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE))
                 tsc_clocksource_reliable = 1;
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index abd8b856bd2b..524619351961 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -45,6 +45,7 @@
 #include <linux/audit.h>
 #include <linux/stddef.h>
 #include <linux/slab.h>
+#include <linux/security.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -232,6 +233,32 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
         struct pt_regs *regs = current_pt_regs();
         unsigned long err = 0;
 
+        err = security_mmap_addr(0);
+        if (err) {
+                /*
+                 * vm86 cannot virtualize the address space, so vm86 users
+                 * need to manage the low 1MB themselves using mmap.  Given
+                 * that BIOS places important data in the first page, vm86
+                 * is essentially useless if mmap_min_addr != 0.  DOSEMU,
+                 * for example, won't even bother trying to use vm86 if it
+                 * can't map a page at virtual address 0.
+                 *
+                 * To reduce the available kernel attack surface, simply
+                 * disallow vm86(old) for users who cannot mmap at va 0.
+                 *
+                 * The implementation of security_mmap_addr will allow
+                 * suitably privileged users to map va 0 even if
+                 * vm.mmap_min_addr is set above 0, and we want this
+                 * behavior for vm86 as well, as it ensures that legacy
+                 * tools like vbetool will not fail just because of
+                 * vm.mmap_min_addr.
+                 */
+                pr_info_once("Denied a call to vm86(old) from %s[%d] (uid: %d).  Set the vm.mmap_min_addr sysctl to 0 and/or adjust LSM mmap_min_addr policy to enable vm86 if you are using a vm86-based DOS emulator.\n",
+                             current->comm, task_pid_nr(current),
+                             from_kuid_munged(&init_user_ns, current_uid()));
+                return -EPERM;
+        }
+
         if (!vm86) {
                 if (!(vm86 = kzalloc(sizeof(*vm86), GFP_KERNEL)))
                         return -ENOMEM;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d01986832afc..64076740251e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6064,6 +6064,8 @@ static __init int hardware_setup(void)
         memcpy(vmx_msr_bitmap_longmode_x2apic,
                         vmx_msr_bitmap_longmode, PAGE_SIZE);
 
+        set_bit(0, vmx_vpid_bitmap); /* 0 is reserved for host */
+
         if (enable_apicv) {
                 for (msr = 0x800; msr <= 0x8ff; msr++)
                         vmx_disable_intercept_msr_read_x2apic(msr);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a60bdbccff51..6bbb0dfb99d0 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -149,6 +149,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "nmi_window", VCPU_STAT(nmi_window_exits) },
         { "halt_exits", VCPU_STAT(halt_exits) },
         { "halt_successful_poll", VCPU_STAT(halt_successful_poll) },
+        { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll) },
         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
         { "hypercalls", VCPU_STAT(hypercalls) },
         { "request_irq", VCPU_STAT(request_irq_exits) },
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 161804de124a..a0d09f6c6533 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1015,7 +1015,7 @@ static struct clock_event_device lguest_clockevent = {
  * This is the Guest timer interrupt handler (hardware interrupt 0).  We just
  * call the clockevent infrastructure and it does whatever needs doing.
  */
-static void lguest_time_irq(unsigned int irq, struct irq_desc *desc)
+static void lguest_time_irq(struct irq_desc *desc)
 {
         unsigned long flags;
 
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 66338a60aa6e..c2aea63bee20 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -192,10 +192,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 
         node_set(node, numa_nodes_parsed);
 
-        pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s\n",
+        pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
                 node, pxm,
                 (unsigned long long) start, (unsigned long long) end - 1,
-                hotpluggable ? " hotplug" : "");
+                hotpluggable ? " hotplug" : "",
+                ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");
 
         /* Mark hotplug range in memblock. */
         if (hotpluggable && memblock_mark_hotplug(start, ma->length))
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 4aecca79374a..14b8faf8b09d 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -140,6 +140,11 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
 
         iv = bip->bip_vec + bip->bip_vcnt;
 
+        if (bip->bip_vcnt &&
+            bvec_gap_to_prev(bdev_get_queue(bio->bi_bdev),
+                             &bip->bip_vec[bip->bip_vcnt - 1], offset))
+                return 0;
+
         iv->bv_page = page;
         iv->bv_len = len;
         iv->bv_offset = offset;
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index ac8370cb2515..55512dd62633 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -370,6 +370,9 @@ static void blkg_destroy_all(struct request_queue *q)
                 blkg_destroy(blkg);
                 spin_unlock(&blkcg->lock);
         }
+
+        q->root_blkg = NULL;
+        q->root_rl.blkg = NULL;
 }
 
 /*
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index f548b64be092..75f29cf70188 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -204,6 +204,9 @@ bool blk_integrity_merge_rq(struct request_queue *q, struct request *req,
             q->limits.max_integrity_segments)
                 return false;
 
+        if (integrity_req_gap_back_merge(req, next->bio))
+                return false;
+
         return true;
 }
 EXPORT_SYMBOL(blk_integrity_merge_rq);
diff --git a/block/blk-map.c b/block/blk-map.c
index 233841644c9d..f565e11f465a 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -9,6 +9,24 @@
 
 #include "blk.h"
 
+static bool iovec_gap_to_prv(struct request_queue *q,
+                             struct iovec *prv, struct iovec *cur)
+{
+        unsigned long prev_end;
+
+        if (!queue_virt_boundary(q))
+                return false;
+
+        if (prv->iov_base == NULL && prv->iov_len == 0)
+                /* prv is not set - don't check */
+                return false;
+
+        prev_end = (unsigned long)(prv->iov_base + prv->iov_len);
+
+        return (((unsigned long)cur->iov_base & queue_virt_boundary(q)) ||
+                prev_end & queue_virt_boundary(q));
+}
+
 int blk_rq_append_bio(struct request_queue *q, struct request *rq,
                       struct bio *bio)
 {
@@ -67,7 +85,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
         struct bio *bio;
         int unaligned = 0;
         struct iov_iter i;
-        struct iovec iov;
+        struct iovec iov, prv = {.iov_base = NULL, .iov_len = 0};
 
         if (!iter || !iter->count)
                 return -EINVAL;
@@ -81,8 +99,12 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
                 /*
                  * Keep going so we check length of all segments
                  */
-                if (uaddr & queue_dma_alignment(q))
+                if ((uaddr & queue_dma_alignment(q)) ||
+                    iovec_gap_to_prv(q, &prv, &iov))
                         unaligned = 1;
+
+                prv.iov_base = iov.iov_base;
+                prv.iov_len = iov.iov_len;
         }
 
         if (unaligned || (q->dma_pad_mask & iter->count) || map_data)
diff --git a/block/blk-merge.c b/block/blk-merge.c
index d088cffb8105..c4e9c37f3e38 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -66,36 +66,33 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
                                          struct bio *bio,
                                          struct bio_set *bs)
 {
-        struct bio *split;
-        struct bio_vec bv, bvprv;
+        struct bio_vec bv, bvprv, *bvprvp = NULL;
         struct bvec_iter iter;
         unsigned seg_size = 0, nsegs = 0, sectors = 0;
-        int prev = 0;
 
         bio_for_each_segment(bv, bio, iter) {
-                sectors += bv.bv_len >> 9;
-
-                if (sectors > queue_max_sectors(q))
+                if (sectors + (bv.bv_len >> 9) > queue_max_sectors(q))
                         goto split;
 
                 /*
                  * If the queue doesn't support SG gaps and adding this
                  * offset would create a gap, disallow it.
                  */
-                if (prev && bvec_gap_to_prev(q, &bvprv, bv.bv_offset))
+                if (bvprvp && bvec_gap_to_prev(q, bvprvp, bv.bv_offset))
                         goto split;
 
-                if (prev && blk_queue_cluster(q)) {
+                if (bvprvp && blk_queue_cluster(q)) {
                         if (seg_size + bv.bv_len > queue_max_segment_size(q))
                                 goto new_segment;
-                        if (!BIOVEC_PHYS_MERGEABLE(&bvprv, &bv))
+                        if (!BIOVEC_PHYS_MERGEABLE(bvprvp, &bv))
                                 goto new_segment;
-                        if (!BIOVEC_SEG_BOUNDARY(q, &bvprv, &bv))
+                        if (!BIOVEC_SEG_BOUNDARY(q, bvprvp, &bv))
                                 goto new_segment;
 
                         seg_size += bv.bv_len;
                         bvprv = bv;
-                        prev = 1;
+                        bvprvp = &bv;
+                        sectors += bv.bv_len >> 9;
                         continue;
                 }
 new_segment:
@@ -104,23 +101,14 @@ new_segment:
 
                 nsegs++;
                 bvprv = bv;
-                prev = 1;
+                bvprvp = &bv;
                 seg_size = bv.bv_len;
+                sectors += bv.bv_len >> 9;
         }
 
         return NULL;
 split:
-        split = bio_clone_bioset(bio, GFP_NOIO, bs);
-
-        split->bi_iter.bi_size -= iter.bi_size;
-        bio->bi_iter = iter;
-
-        if (bio_integrity(bio)) {
-                bio_integrity_advance(bio, split->bi_iter.bi_size);
-                bio_integrity_trim(split, 0, bio_sectors(split));
-        }
-
-        return split;
+        return bio_split(bio, sectors, GFP_NOIO, bs);
 }
 
 void blk_queue_split(struct request_queue *q, struct bio **bio,
@@ -439,6 +427,11 @@ no_merge:
 int ll_back_merge_fn(struct request_queue *q, struct request *req,
                      struct bio *bio)
 {
+        if (req_gap_back_merge(req, bio))
+                return 0;
+        if (blk_integrity_rq(req) &&
+            integrity_req_gap_back_merge(req, bio))
+                return 0;
         if (blk_rq_sectors(req) + bio_sectors(bio) >
             blk_rq_get_max_sectors(req)) {
                 req->cmd_flags |= REQ_NOMERGE;
@@ -457,6 +450,12 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
 int ll_front_merge_fn(struct request_queue *q, struct request *req,
                       struct bio *bio)
 {
+
+        if (req_gap_front_merge(req, bio))
+                return 0;
+        if (blk_integrity_rq(req) &&
+            integrity_req_gap_front_merge(req, bio))
+                return 0;
         if (blk_rq_sectors(req) + bio_sectors(bio) >
             blk_rq_get_max_sectors(req)) {
                 req->cmd_flags |= REQ_NOMERGE;
@@ -483,14 +482,6 @@ static bool req_no_special_merge(struct request *req)
         return !q->mq_ops && req->special;
 }
 
-static int req_gap_to_prev(struct request *req, struct bio *next)
-{
-        struct bio *prev = req->biotail;
-
-        return bvec_gap_to_prev(req->q, &prev->bi_io_vec[prev->bi_vcnt - 1],
-                        next->bi_io_vec[0].bv_offset);
-}
-
 static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
                                 struct request *next)
 {
@@ -505,7 +496,7 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
         if (req_no_special_merge(req) || req_no_special_merge(next))
                 return 0;
 
-        if (req_gap_to_prev(req, next->bio))
+        if (req_gap_back_merge(req, next->bio))
                 return 0;
 
         /*
@@ -713,10 +704,6 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
             !blk_write_same_mergeable(rq->bio, bio))
                 return false;
 
-        /* Only check gaps if the bio carries data */
-        if (bio_has_data(bio) && req_gap_to_prev(rq, bio))
-                return false;
-
         return true;
 }
 
diff --git a/block/bounce.c b/block/bounce.c
index 0611aea1cfe9..1cb5dd3a5da1 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -128,12 +128,14 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool)
         struct bio *bio_orig = bio->bi_private;
         struct bio_vec *bvec, *org_vec;
         int i;
+        int start = bio_orig->bi_iter.bi_idx;
 
         /*
          * free up bounce indirect pages used
          */
         bio_for_each_segment_all(bvec, bio, i) {
-                org_vec = bio_orig->bi_io_vec + i;
+                org_vec = bio_orig->bi_io_vec + i + start;
+
                 if (bvec->bv_page == org_vec->bv_page)
                         continue;
 
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 35c2de136971..fa18753f5c34 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -940,6 +940,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
         char *xbuf[XBUFSIZE];
         char *xoutbuf[XBUFSIZE];
         int ret = -ENOMEM;
+        unsigned int ivsize = crypto_skcipher_ivsize(tfm);
 
         if (testmgr_alloc_buf(xbuf))
                 goto out_nobuf;
@@ -975,7 +976,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
                         continue;
 
                 if (template[i].iv)
-                        memcpy(iv, template[i].iv, MAX_IVLEN);
+                        memcpy(iv, template[i].iv, ivsize);
                 else
                         memset(iv, 0, MAX_IVLEN);
 
@@ -1051,7 +1052,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
                         continue;
 
                 if (template[i].iv)
-                        memcpy(iv, template[i].iv, MAX_IVLEN);
+                        memcpy(iv, template[i].iv, ivsize);
                 else
                         memset(iv, 0, MAX_IVLEN);
 
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 46506e7687cd..a212cefae524 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -315,14 +315,10 @@ static void acpi_bus_osc_support(void)
 
         capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
         capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
-#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
-                        defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
-        capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
-#endif
-
-#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
-        capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
-#endif
+        if (IS_ENABLED(CONFIG_ACPI_PROCESSOR_AGGREGATOR))
+                capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
+        if (IS_ENABLED(CONFIG_ACPI_PROCESSOR))
+                capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
 
         capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
 
diff --git a/drivers/acpi/int340x_thermal.c b/drivers/acpi/int340x_thermal.c
index 9dcf83682e36..33505c651f62 100644
--- a/drivers/acpi/int340x_thermal.c
+++ b/drivers/acpi/int340x_thermal.c
@@ -33,13 +33,12 @@ static const struct acpi_device_id int340x_thermal_device_ids[] = {
 static int int340x_thermal_handler_attach(struct acpi_device *adev,
                                         const struct acpi_device_id *id)
 {
-#if defined(CONFIG_INT340X_THERMAL) || defined(CONFIG_INT340X_THERMAL_MODULE)
-        acpi_create_platform_device(adev);
-#elif defined(INTEL_SOC_DTS_THERMAL) || defined(INTEL_SOC_DTS_THERMAL_MODULE)
+        if (IS_ENABLED(CONFIG_INT340X_THERMAL))
+                acpi_create_platform_device(adev);
         /* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */
-        if (id->driver_data == INT3401_DEVICE)
+        else if (IS_ENABLED(CONFIG_INTEL_SOC_DTS_THERMAL) &&
+                 id->driver_data == INT3401_DEVICE)
                 acpi_create_platform_device(adev);
-#endif
         return 1;
 }
 
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 1857a5dd0816..134483daac25 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -63,20 +63,8 @@ static int platform_msi_init(struct irq_domain *domain,
                              unsigned int virq, irq_hw_number_t hwirq,
                              msi_alloc_info_t *arg)
 {
-        struct irq_data *data;
-
-        irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
-                                      info->chip, info->chip_data);
-
-        /*
-         * Save the MSI descriptor in handler_data so that the
-         * irq_write_msi_msg callback can retrieve it (and the
-         * associated device).
-         */
-        data = irq_domain_get_irq_data(domain, virq);
-        data->handler_data = arg->desc;
-
-        return 0;
+        return irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
+                                             info->chip, info->chip_data);
 }
 #else
 #define platform_msi_set_desc           NULL
@@ -97,7 +85,7 @@ static void platform_msi_update_dom_ops(struct msi_domain_info *info)
 
 static void platform_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
 {
-        struct msi_desc *desc = irq_data_get_irq_handler_data(data);
+        struct msi_desc *desc = irq_data_get_msi_desc(data);
         struct platform_msi_priv_data *priv_data;
 
         priv_data = desc->platform.msi_priv_data;
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 17269a3b85f2..a295b98c6bae 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -406,6 +406,22 @@ static struct blk_mq_ops null_mq_ops = {
         .complete       = null_softirq_done_fn,
 };
 
+static void cleanup_queue(struct nullb_queue *nq)
+{
+        kfree(nq->tag_map);
+        kfree(nq->cmds);
+}
+
+static void cleanup_queues(struct nullb *nullb)
+{
+        int i;
+
+        for (i = 0; i < nullb->nr_queues; i++)
+                cleanup_queue(&nullb->queues[i]);
+
+        kfree(nullb->queues);
+}
+
 static void null_del_dev(struct nullb *nullb)
 {
         list_del_init(&nullb->list);
@@ -415,6 +431,7 @@ static void null_del_dev(struct nullb *nullb)
         if (queue_mode == NULL_Q_MQ)
                 blk_mq_free_tag_set(&nullb->tag_set);
         put_disk(nullb->disk);
+        cleanup_queues(nullb);
         kfree(nullb);
 }
 
@@ -459,22 +476,6 @@ static int setup_commands(struct nullb_queue *nq)
         return 0;
 }
 
-static void cleanup_queue(struct nullb_queue *nq)
-{
-        kfree(nq->tag_map);
-        kfree(nq->cmds);
-}
-
-static void cleanup_queues(struct nullb *nullb)
-{
-        int i;
-
-        for (i = 0; i < nullb->nr_queues; i++)
-                cleanup_queue(&nullb->queues[i]);
-
-        kfree(nullb->queues);
-}
-
 static int setup_queues(struct nullb *nullb)
 {
         nullb->queues = kzalloc(submit_queues * sizeof(struct nullb_queue),
@@ -588,8 +589,7 @@ static int null_add_dev(void)
         blk_queue_physical_block_size(nullb->q, bs);
 
         size = gb * 1024 * 1024 * 1024ULL;
-        sector_div(size, bs);
-        set_capacity(disk, size);
+        set_capacity(disk, size >> 9);
 
         disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO;
         disk->major             = null_major;
diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 965d1afb0eaa..5cb13ca3a3ac 100644
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -330,12 +330,14 @@ void zcomp_destroy(struct zcomp *comp)
  * allocate new zcomp and initialize it. return compressing
  * backend pointer or ERR_PTR if things went bad. ERR_PTR(-EINVAL)
  * if requested algorithm is not supported, ERR_PTR(-ENOMEM) in
- * case of allocation error.
+ * case of allocation error, or any other error potentially
+ * returned by functions zcomp_strm_{multi,single}_create.
  */
 struct zcomp *zcomp_create(const char *compress, int max_strm)
 {
         struct zcomp *comp;
         struct zcomp_backend *backend;
+        int error;
 
         backend = find_backend(compress);
         if (!backend)
@@ -347,12 +349,12 @@ struct zcomp *zcomp_create(const char *compress, int max_strm)
 
         comp->backend = backend;
         if (max_strm > 1)
-                zcomp_strm_multi_create(comp, max_strm);
+                error = zcomp_strm_multi_create(comp, max_strm);
         else
-                zcomp_strm_single_create(comp);
-        if (!comp->stream) {
+                error = zcomp_strm_single_create(comp);
+        if (error) {
                 kfree(comp);
-                return ERR_PTR(-ENOMEM);
+                return ERR_PTR(error);
         }
         return comp;
 }
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 43e2c3ad6c31..0ebcf449778a 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2437,7 +2437,8 @@ static int __clk_init(struct device *dev, struct clk *clk_user)
         hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
                 if (orphan->num_parents && orphan->ops->get_parent) {
                         i = orphan->ops->get_parent(orphan->hw);
-                        if (!strcmp(core->name, orphan->parent_names[i]))
+                        if (i >= 0 && i < orphan->num_parents &&
+                            !strcmp(core->name, orphan->parent_names[i]))
                                 clk_core_reparent(orphan, core);
                         continue;
                 }
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
index 2a38eb4a2552..6cf38dc1c929 100644
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ b/drivers/clk/h8300/clk-h8s2678.c
@@ -8,6 +8,7 @@
 #include <linux/err.h>
 #include <linux/device.h>
 #include <linux/of_address.h>
+#include <linux/slab.h>
 
 static DEFINE_SPINLOCK(clklock);
 
diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig
index 2c16807341dc..e43485448612 100644
--- a/drivers/clk/hisilicon/Kconfig
+++ b/drivers/clk/hisilicon/Kconfig
@@ -1,6 +1,12 @@
 config COMMON_CLK_HI6220
         bool "Hi6220 Clock Driver"
-        depends on (ARCH_HISI || COMPILE_TEST) && MAILBOX
+        depends on ARCH_HISI || COMPILE_TEST
         default ARCH_HISI
         help
           Build the Hisilicon Hi6220 clock driver based on the common clock framework.
+
+config STUB_CLK_HI6220
+        bool "Hi6220 Stub Clock Driver"
+        depends on COMMON_CLK_HI6220 && MAILBOX
+        help
+          Build the Hisilicon Hi6220 stub clock driver.
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index 4a1001a11f04..74dba31590f9 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -7,4 +7,5 @@ obj-y	+= clk.o clkgate-separated.o clkdivider-hi6220.o
 obj-$(CONFIG_ARCH_HI3xxx)       += clk-hi3620.o
 obj-$(CONFIG_ARCH_HIP04)        += clk-hip04.o
 obj-$(CONFIG_ARCH_HIX5HD2)      += clk-hix5hd2.o
-obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o clk-hi6220-stub.o
+obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o
+obj-$(CONFIG_STUB_CLK_HI6220)   += clk-hi6220-stub.o
diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index ed02bbc7b11f..abb47608713b 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -716,6 +716,8 @@ static const char *const rk3188_critical_clocks[] __initconst = {
         "aclk_cpu",
         "aclk_peri",
         "hclk_peri",
+        "pclk_cpu",
+        "pclk_peri",
 };
 
 static void __init rk3188_common_clk_init(struct device_node *np)
@@ -744,8 +746,6 @@ static void __init rk3188_common_clk_init(struct device_node *np)
 
         rockchip_clk_register_branches(common_clk_branches,
                                   ARRAY_SIZE(common_clk_branches));
-        rockchip_clk_protect_critical(rk3188_critical_clocks,
-                                      ARRAY_SIZE(rk3188_critical_clocks));
 
         rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
                                   ROCKCHIP_SOFTRST_HIWORD_MASK);
@@ -765,6 +765,8 @@ static void __init rk3066a_clk_init(struct device_node *np)
                         mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
                         &rk3066_cpuclk_data, rk3066_cpuclk_rates,
                         ARRAY_SIZE(rk3066_cpuclk_rates));
+        rockchip_clk_protect_critical(rk3188_critical_clocks,
+                                      ARRAY_SIZE(rk3188_critical_clocks));
 }
 CLK_OF_DECLARE(rk3066a_cru, "rockchip,rk3066a-cru", rk3066a_clk_init);
 
@@ -801,6 +803,9 @@ static void __init rk3188a_clk_init(struct device_node *np)
                 pr_warn("%s: missing clocks to reparent aclk_cpu_pre to gpll\n",
                         __func__);
         }
+
+        rockchip_clk_protect_critical(rk3188_critical_clocks,
+                                      ARRAY_SIZE(rk3188_critical_clocks));
 }
 CLK_OF_DECLARE(rk3188a_cru, "rockchip,rk3188a-cru", rk3188a_clk_init);
 
diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c
index 9c5d61e698ef..7e6b783e6eee 100644
--- a/drivers/clk/rockchip/clk-rk3368.c
+++ b/drivers/clk/rockchip/clk-rk3368.c
@@ -818,6 +818,10 @@ static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = {
         GATE(0, "sclk_timer00", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 0, GFLAGS),
 };
 
+static const char *const rk3368_critical_clocks[] __initconst = {
+        "pclk_pd_pmu",
+};
+
 static void __init rk3368_clk_init(struct device_node *np)
 {
         void __iomem *reg_base;
@@ -862,6 +866,8 @@ static void __init rk3368_clk_init(struct device_node *np)
                                    RK3368_GRF_SOC_STATUS0);
         rockchip_clk_register_branches(rk3368_clk_branches,
                                   ARRAY_SIZE(rk3368_clk_branches));
+        rockchip_clk_protect_critical(rk3368_critical_clocks,
+                                      ARRAY_SIZE(rk3368_critical_clocks));
 
         rockchip_clk_register_armclk(ARMCLKB, "armclkb",
                         mux_armclkb_p, ARRAY_SIZE(mux_armclkb_p),
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index 83ccf142ff2a..576cd0354d48 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -307,7 +307,7 @@ static const struct clkgen_quadfs_data st_fs660c32_F_416 = {
         .get_rate       = clk_fs660c32_dig_get_rate,
 };
 
-static const struct clkgen_quadfs_data st_fs660c32_C_407 = {
+static const struct clkgen_quadfs_data st_fs660c32_C = {
         .nrst_present = true,
         .nrst   = { CLKGEN_FIELD(0x2f0, 0x1, 0),
                     CLKGEN_FIELD(0x2f0, 0x1, 1),
@@ -350,7 +350,7 @@ static const struct clkgen_quadfs_data st_fs660c32_C_407 = {
         .get_rate       = clk_fs660c32_dig_get_rate,
 };
 
-static const struct clkgen_quadfs_data st_fs660c32_D_407 = {
+static const struct clkgen_quadfs_data st_fs660c32_D = {
         .nrst_present = true,
         .nrst   = { CLKGEN_FIELD(0x2a0, 0x1, 0),
                     CLKGEN_FIELD(0x2a0, 0x1, 1),
@@ -1077,11 +1077,11 @@ static const struct of_device_id quadfs_of_match[] = {
         },
         {
                 .compatible = "st,stih407-quadfs660-C",
-                .data = &st_fs660c32_C_407
+                .data = &st_fs660c32_C
         },
         {
                 .compatible = "st,stih407-quadfs660-D",
-                .data = &st_fs660c32_D_407
+                .data = &st_fs660c32_D
         },
         {}
 };
diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index 47a38a994cac..b2a332cf8985 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -193,7 +193,7 @@ static const struct clkgen_pll_data st_pll3200c32_407_a0 = {
         .ops            = &stm_pll3200c32_ops,
 };
 
-static const struct clkgen_pll_data st_pll3200c32_407_c0_0 = {
+static const struct clkgen_pll_data st_pll3200c32_cx_0 = {
         /* 407 C0 PLL0 */
         .pdn_status     = CLKGEN_FIELD(0x2a0,   0x1,                    8),
         .locked_status  = CLKGEN_FIELD(0x2a0,   0x1,                    24),
@@ -205,7 +205,7 @@ static const struct clkgen_pll_data st_pll3200c32_407_c0_0 = {
         .ops            = &stm_pll3200c32_ops,
 };
 
-static const struct clkgen_pll_data st_pll3200c32_407_c0_1 = {
+static const struct clkgen_pll_data st_pll3200c32_cx_1 = {
         /* 407 C0 PLL1 */
         .pdn_status     = CLKGEN_FIELD(0x2c8,   0x1,                    8),
         .locked_status  = CLKGEN_FIELD(0x2c8,   0x1,                    24),
@@ -624,12 +624,12 @@ static const struct of_device_id c32_pll_of_match[] = {
                 .data = &st_pll3200c32_407_a0,
         },
         {
-                .compatible = "st,stih407-plls-c32-c0_0",
-                .data = &st_pll3200c32_407_c0_0,
+                .compatible = "st,plls-c32-cx_0",
+                .data = &st_pll3200c32_cx_0,
         },
         {
-                .compatible = "st,stih407-plls-c32-c0_1",
-                .data = &st_pll3200c32_407_c0_1,
+                .compatible = "st,plls-c32-cx_1",
+                .data = &st_pll3200c32_cx_1,
         },
         {
                 .compatible = "st,stih407-plls-c32-a9",
diff --git a/drivers/clk/tegra/clk-dfll.c b/drivers/clk/tegra/clk-dfll.c
index c2ff859ee0e8..c4e3a52e225b 100644
--- a/drivers/clk/tegra/clk-dfll.c
+++ b/drivers/clk/tegra/clk-dfll.c
@@ -682,11 +682,17 @@ static int find_lut_index_for_rate(struct tegra_dfll *td, unsigned long rate)
         struct dev_pm_opp *opp;
         int i, uv;
 
+        rcu_read_lock();
+
         opp = dev_pm_opp_find_freq_ceil(td->soc->dev, &rate);
-        if (IS_ERR(opp))
+        if (IS_ERR(opp)) {
+                rcu_read_unlock();
                 return PTR_ERR(opp);
+        }
         uv = dev_pm_opp_get_voltage(opp);
 
+        rcu_read_unlock();
+
         for (i = 0; i < td->i2c_lut_size; i++) {
                 if (regulator_list_voltage(td->vdd_reg, td->i2c_lut[i]) == uv)
                         return i;
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 15b921a9248c..798277227de7 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -375,12 +375,11 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
 
         pr_debug("get_cur_freq_on_cpu (%d)\n", cpu);
 
-        policy = cpufreq_cpu_get(cpu);
+        policy = cpufreq_cpu_get_raw(cpu);
         if (unlikely(!policy))
                 return 0;
 
         data = policy->driver_data;
-        cpufreq_cpu_put(policy);
         if (unlikely(!data || !data->freq_table))
                 return 0;
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6633b3fa996e..ef5ed9470de9 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -238,13 +238,13 @@ int cpufreq_generic_init(struct cpufreq_policy *policy,
 }
 EXPORT_SYMBOL_GPL(cpufreq_generic_init);
 
-/* Only for cpufreq core internal use */
-static struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
 {
         struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
 
         return policy && cpumask_test_cpu(cpu, policy->cpus) ? policy : NULL;
 }
+EXPORT_SYMBOL_GPL(cpufreq_cpu_get_raw);
 
 unsigned int cpufreq_generic_get(unsigned int cpu)
 {
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 07bc7aa6b224..d234719065a5 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -461,7 +461,7 @@ config CRYPTO_DEV_QCE
 
 config CRYPTO_DEV_VMX
         bool "Support for VMX cryptographic acceleration instructions"
-        depends on PPC64
+        depends on PPC64 && VSX
         help
           Support for VMX cryptographic acceleration instructions.
 
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c b/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c
index e070c316e8b7..a19ee127edca 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c
@@ -104,7 +104,7 @@ static int sun4i_ss_opti_poll(struct ablkcipher_request *areq)
                         sg_miter_next(&mo);
                         oo = 0;
                 }
-        } while (mo.length > 0);
+        } while (oleft > 0);
 
         if (areq->info) {
                 for (i = 0; i < 4 && i < ivsize / 4; i++) {
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index ca1b362d77e2..3927ed9fdbd5 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -53,7 +53,7 @@ static struct devfreq *find_device_devfreq(struct device *dev)
 {
         struct devfreq *tmp_devfreq;
 
-        if (unlikely(IS_ERR_OR_NULL(dev))) {
+        if (IS_ERR_OR_NULL(dev)) {
                 pr_err("DEVFREQ: %s: Invalid parameters\n", __func__);
                 return ERR_PTR(-EINVAL);
         }
@@ -133,7 +133,7 @@ static struct devfreq_governor *find_devfreq_governor(const char *name)
 {
         struct devfreq_governor *tmp_governor;
 
-        if (unlikely(IS_ERR_OR_NULL(name))) {
+        if (IS_ERR_OR_NULL(name)) {
                 pr_err("DEVFREQ: %s: Invalid parameters\n", __func__);
                 return ERR_PTR(-EINVAL);
         }
@@ -177,10 +177,10 @@ int update_devfreq(struct devfreq *devfreq)
                 return err;
 
         /*
-         * Adjust the freuqency with user freq and QoS.
+         * Adjust the frequency with user freq and QoS.
          *
-         * List from the highest proiority
-         * max_freq (probably called by thermal when it's too hot)
+         * List from the highest priority
+         * max_freq
          * min_freq
          */
 
@@ -482,7 +482,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
                                                 devfreq->profile->max_state *
                                                 devfreq->profile->max_state,
                                                 GFP_KERNEL);
-        devfreq->time_in_state = devm_kzalloc(dev, sizeof(unsigned int) *
+        devfreq->time_in_state = devm_kzalloc(dev, sizeof(unsigned long) *
                                                 devfreq->profile->max_state,
                                                 GFP_KERNEL);
         devfreq->last_stat_updated = jiffies;
diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
index f9901f52a225..f312485f1451 100644
--- a/drivers/devfreq/event/exynos-ppmu.c
+++ b/drivers/devfreq/event/exynos-ppmu.c
@@ -319,7 +319,8 @@ static int exynos_ppmu_v2_get_event(struct devfreq_event_dev *edev,
         case PPMU_PMNCNT3:
                 pmcnt_high = __raw_readl(info->ppmu.base + PPMU_V2_PMCNT3_HIGH);
                 pmcnt_low = __raw_readl(info->ppmu.base + PPMU_V2_PMCNT3_LOW);
-                load_count = (u64)((pmcnt_high & 0xff) << 32) + (u64)pmcnt_low;
+                load_count = ((u64)((pmcnt_high & 0xff)) << 32)
+                           + (u64)pmcnt_low;
                 break;
         }
         edata->load_count = load_count;
diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c
index 0720ba84ca92..ae72ba5e78df 100644
--- a/drivers/devfreq/governor_simpleondemand.c
+++ b/drivers/devfreq/governor_simpleondemand.c
@@ -21,17 +21,20 @@
 static int devfreq_simple_ondemand_func(struct devfreq *df,
                                         unsigned long *freq)
 {
-        struct devfreq_dev_status stat;
-        int err = df->profile->get_dev_status(df->dev.parent, &stat);
+        int err;
+        struct devfreq_dev_status *stat;
         unsigned long long a, b;
         unsigned int dfso_upthreshold = DFSO_UPTHRESHOLD;
         unsigned int dfso_downdifferential = DFSO_DOWNDIFFERENCTIAL;
         struct devfreq_simple_ondemand_data *data = df->data;
         unsigned long max = (df->max_freq) ? df->max_freq : UINT_MAX;
 
+        err = devfreq_update_stats(df);
         if (err)
                 return err;
 
+        stat = &df->last_status;
+
         if (data) {
                 if (data->upthreshold)
                         dfso_upthreshold = data->upthreshold;
@@ -43,41 +46,41 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
                 return -EINVAL;
 
         /* Assume MAX if it is going to be divided by zero */
-        if (stat.total_time == 0) {
+        if (stat->total_time == 0) {
                 *freq = max;
                 return 0;
         }
 
         /* Prevent overflow */
-        if (stat.busy_time >= (1 << 24) || stat.total_time >= (1 << 24)) {
-                stat.busy_time >>= 7;
-                stat.total_time >>= 7;
+        if (stat->busy_time >= (1 << 24) || stat->total_time >= (1 << 24)) {
+                stat->busy_time >>= 7;
+                stat->total_time >>= 7;
         }
 
         /* Set MAX if it's busy enough */
-        if (stat.busy_time * 100 >
-            stat.total_time * dfso_upthreshold) {
+        if (stat->busy_time * 100 >
+            stat->total_time * dfso_upthreshold) {
                 *freq = max;
                 return 0;
         }
 
         /* Set MAX if we do not know the initial frequency */
-        if (stat.current_frequency == 0) {
+        if (stat->current_frequency == 0) {
                 *freq = max;
                 return 0;
         }
 
         /* Keep the current frequency */
-        if (stat.busy_time * 100 >
-            stat.total_time * (dfso_upthreshold - dfso_downdifferential)) {
-                *freq = stat.current_frequency;
+        if (stat->busy_time * 100 >
+            stat->total_time * (dfso_upthreshold - dfso_downdifferential)) {
+                *freq = stat->current_frequency;
                 return 0;
         }
 
         /* Set the desired frequency based on the load */
-        a = stat.busy_time;
-        a *= stat.current_frequency;
-        b = div_u64(a, stat.total_time);
+        a = stat->busy_time;
+        a *= stat->current_frequency;
+        b = div_u64(a, stat->total_time);
         b *= 100;
         b = div_u64(b, (dfso_upthreshold - dfso_downdifferential / 2));
         *freq = (unsigned long) b;
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 13a1a6e8108c..848b93ee930f 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -541,18 +541,20 @@ static struct devfreq_dev_profile tegra_devfreq_profile = {
 static int tegra_governor_get_target(struct devfreq *devfreq,
                                      unsigned long *freq)
 {
-        struct devfreq_dev_status stat;
+        struct devfreq_dev_status *stat;
         struct tegra_devfreq *tegra;
         struct tegra_devfreq_device *dev;
         unsigned long target_freq = 0;
         unsigned int i;
         int err;
 
-        err = devfreq->profile->get_dev_status(devfreq->dev.parent, &stat);
+        err = devfreq_update_stats(devfreq);
         if (err)
                 return err;
 
-        tegra = stat.private_data;
+        stat = &devfreq->last_status;
+
+        tegra = stat->private_data;
 
         for (i = 0; i < ARRAY_SIZE(tegra->devices); i++) {
                 dev = &tegra->devices[i];
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index 4768a829253a..2bf37e68ad0f 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -266,7 +266,7 @@ int ipu_irq_unmap(unsigned int source)
 }
 
 /* Chained IRQ handler for IPU function and error interrupt */
-static void ipu_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void ipu_irq_handler(struct irq_desc *desc)
 {
         struct ipu *ipu = irq_desc_get_handler_data(desc);
         u32 status;
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b4fc9e4d24c6..8949b3f6f74d 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -356,7 +356,7 @@ config GPIO_PXA
 
 config GPIO_RCAR
         tristate "Renesas R-Car GPIO"
-        depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
+        depends on ARCH_SHMOBILE || COMPILE_TEST
         select GPIOLIB_IRQCHIP
         help
           Say yes here to support GPIO on Renesas R-Car SoCs.
diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 9b7e0b3db387..1b44941574fa 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -201,8 +201,7 @@ static int altera_gpio_direction_output(struct gpio_chip *gc,
         return 0;
 }
 
-static void altera_gpio_irq_edge_handler(unsigned int irq,
-                                        struct irq_desc *desc)
+static void altera_gpio_irq_edge_handler(struct irq_desc *desc)
 {
         struct altera_gpio_chip *altera_gc;
         struct irq_chip *chip;
@@ -231,8 +230,7 @@ static void altera_gpio_irq_edge_handler(unsigned int irq,
 }
 
 
-static void altera_gpio_irq_leveL_high_handler(unsigned int irq,
-                                              struct irq_desc *desc)
+static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
 {
         struct altera_gpio_chip *altera_gc;
         struct irq_chip *chip;
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 31b90ac15204..33a1f9779b86 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -433,7 +433,7 @@ static int bcm_kona_gpio_irq_set_type(struct irq_data *d, unsigned int type)
         return 0;
 }
 
-static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 {
         void __iomem *reg_base;
         int bit, bank_id;
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index 9ea86d2ac054..4c64627c6bb5 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -236,7 +236,7 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
 }
 
 /* Each UPG GIO block has one IRQ for all banks */
-static void brcmstb_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void brcmstb_gpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 94b0ab709721..5e715388803d 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -326,8 +326,7 @@ static struct irq_chip gpio_irqchip = {
         .flags          = IRQCHIP_SET_TYPE_MASKED,
 };
 
-static void
-gpio_irq_handler(unsigned __irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct davinci_gpio_regs __iomem *g;
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index c5be4b9b8baf..fcd5b0acfc72 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -147,7 +147,7 @@ static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
         return ret;
 }
 
-static void dwapb_irq_handler(u32 irq, struct irq_desc *desc)
+static void dwapb_irq_handler(struct irq_desc *desc)
 {
         struct dwapb_gpio *gpio = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 9d90366ea259..3e3947b35c83 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -78,7 +78,7 @@ static void ep93xx_gpio_int_debounce(unsigned int irq, bool enable)
                 EP93XX_GPIO_REG(int_debounce_register_offset[port]));
 }
 
-static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc)
 {
         unsigned char status;
         int i;
@@ -100,8 +100,7 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
         }
 }
 
-static void ep93xx_gpio_f_irq_handler(unsigned int __irq,
-                                      struct irq_desc *desc)
+static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc)
 {
         /*
          * map discontiguous hw irq range to continuous sw irq range:
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index aa28c65eb6b4..70097472b02c 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -301,7 +301,7 @@ static const struct pci_device_id intel_gpio_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
 
-static void intel_mid_irq_handler(unsigned irq, struct irq_desc *desc)
+static void intel_mid_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct intel_mid_gpio *priv = to_intel_gpio_priv(gc);
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 153af464c7a7..127c37b380ae 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -234,7 +234,7 @@ static int lp_gpio_direction_output(struct gpio_chip *chip,
         return 0;
 }
 
-static void lp_gpio_irq_handler(unsigned hwirq, struct irq_desc *desc)
+static void lp_gpio_irq_handler(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 8ef7a12de983..48ef368347ab 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -194,7 +194,7 @@ static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
                 return -ENXIO;
 }
 
-static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc)
+static void mpc8xxx_gpio_irq_cascade(struct irq_desc *desc)
 {
         struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index 7bcfb87a5fa6..22523aae8abe 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -232,7 +232,7 @@ static struct irq_chip msic_irqchip = {
         .irq_bus_sync_unlock    = msic_bus_sync_unlock,
 };
 
-static void msic_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void msic_gpio_irq_handler(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct msic_gpio *mg = irq_data_get_irq_handler_data(data);
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index d2012cfb5571..4b4222145f10 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -305,7 +305,7 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
  * which have been set as summary IRQ lines and which are triggered,
  * and to call their interrupt handlers.
  */
-static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void msm_summary_irq_handler(struct irq_desc *desc)
 {
         unsigned long i;
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index b396bf3bf294..df418b81456d 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -458,7 +458,7 @@ static int mvebu_gpio_irq_set_type(struct irq_data *d, unsigned int type)
         return 0;
 }
 
-static void mvebu_gpio_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void mvebu_gpio_irq_handler(struct irq_desc *desc)
 {
         struct mvebu_gpio_chip *mvchip = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index b752b560126e..b8dd847443c5 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -272,7 +272,7 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
 }
 
 /* MX1 and MX3 has one interrupt *per* gpio port */
-static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx3_gpio_irq_handler(struct irq_desc *desc)
 {
         u32 irq_stat;
         struct mxc_gpio_port *port = irq_desc_get_handler_data(desc);
@@ -288,7 +288,7 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 }
 
 /* MX2 has one interrupt *for all* gpio ports */
-static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx2_gpio_irq_handler(struct irq_desc *desc)
 {
         u32 irq_msk, irq_stat;
         struct mxc_gpio_port *port;
@@ -339,13 +339,15 @@ static int gpio_set_wake_irq(struct irq_data *d, u32 enable)
         return 0;
 }
 
-static void mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base)
+static int mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base)
 {
         struct irq_chip_generic *gc;
         struct irq_chip_type *ct;
 
         gc = irq_alloc_generic_chip("gpio-mxc", 1, irq_base,
                                     port->base, handle_level_irq);
+        if (!gc)
+                return -ENOMEM;
         gc->private = port;
 
         ct = gc->chip_types;
@@ -360,6 +362,8 @@ static void mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base)
 
         irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_NESTED_LOCK,
                                IRQ_NOREQUEST, 0);
+
+        return 0;
 }
 
 static void mxc_gpio_get_hw(struct platform_device *pdev)
@@ -477,12 +481,16 @@ static int mxc_gpio_probe(struct platform_device *pdev)
         }
 
         /* gpio-mxc can be a generic irq chip */
-        mxc_gpio_init_gc(port, irq_base);
+        err = mxc_gpio_init_gc(port, irq_base);
+        if (err < 0)
+                goto out_irqdomain_remove;
 
         list_add_tail(&port->node, &mxc_gpio_ports);
 
         return 0;
 
+out_irqdomain_remove:
+        irq_domain_remove(port->domain);
 out_irqdesc_free:
         irq_free_descs(irq_base, 32);
 out_gpiochip_remove:
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index b7f383eb18d9..a4288f428819 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -154,7 +154,7 @@ static void mxs_flip_edge(struct mxs_gpio_port *port, u32 gpio)
 }
 
 /* MXS has one interrupt *per* gpio port */
-static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mxs_gpio_irq_handler(struct irq_desc *desc)
 {
         u32 irq_stat;
         struct mxs_gpio_port *port = irq_desc_get_handler_data(desc);
@@ -196,13 +196,16 @@ static int mxs_gpio_set_wake_irq(struct irq_data *d, unsigned int enable)
         return 0;
 }
 
-static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
+static int __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
 {
         struct irq_chip_generic *gc;
         struct irq_chip_type *ct;
 
         gc = irq_alloc_generic_chip("gpio-mxs", 1, irq_base,
                                     port->base, handle_level_irq);
+        if (!gc)
+                return -ENOMEM;
+
         gc->private = port;
 
         ct = gc->chip_types;
@@ -216,6 +219,8 @@ static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
 
         irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_NESTED_LOCK,
                                IRQ_NOREQUEST, 0);
+
+        return 0;
 }
 
 static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
@@ -317,7 +322,9 @@ static int mxs_gpio_probe(struct platform_device *pdev)
         }
 
         /* gpio-mxs can be a generic irq chip */
-        mxs_gpio_init_gc(port, irq_base);
+        err = mxs_gpio_init_gc(port, irq_base);
+        if (err < 0)
+                goto out_irqdomain_remove;
 
         /* setup one handler for each entry */
         irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler,
@@ -343,6 +350,8 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 
 out_bgpio_remove:
         bgpio_remove(&port->bgc);
+out_irqdomain_remove:
+        irq_domain_remove(port->domain);
 out_irqdesc_free:
         irq_free_descs(irq_base, 32);
         return err;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 2ae0d47e9554..5236db161e76 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -709,7 +709,7 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
  * line's interrupt handler has been run, we may miss some nested
  * interrupts.
  */
-static void omap_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void omap_gpio_irq_handler(struct irq_desc *desc)
 {
         void __iomem *isr_reg = NULL;
         u32 isr;
@@ -1098,7 +1098,6 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
         } else {
                 bank->chip.label = "gpio";
                 bank->chip.base = gpio;
-                gpio += bank->width;
         }
         bank->chip.ngpio = bank->width;
 
@@ -1108,6 +1107,9 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
                 return ret;
         }
 
+        if (!bank->is_mpuio)
+                gpio += bank->width;
+
 #ifdef CONFIG_ARCH_OMAP1
         /*
          * REVISIT: Once we have OMAP1 supporting SPARSE_IRQ, we can drop
@@ -1253,8 +1255,11 @@ static int omap_gpio_probe(struct platform_device *pdev)
         omap_gpio_mod_init(bank);
 
         ret = omap_gpio_chip_init(bank, irqc);
-        if (ret)
+        if (ret) {
+                pm_runtime_put_sync(bank->dev);
+                pm_runtime_disable(bank->dev);
                 return ret;
+        }
 
         omap_gpio_show_rev(bank);
 
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 04756130437f..229ef653e0f8 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -187,7 +187,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
         return 0;
 }
 
-static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
+static void pl061_irq_handler(struct irq_desc *desc)
 {
         unsigned long pending;
         int offset;
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 55a11de3d5b7..df2ce550f309 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -401,7 +401,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
         return 0;
 }
 
-static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
+static void pxa_gpio_demux_handler(struct irq_desc *desc)
 {
         struct pxa_gpio_chip *c;
         int loop, gpio, gpio_base, n;
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c
index 67bd2f5d89e8..990fa9023e22 100644
--- a/drivers/gpio/gpio-sa1100.c
+++ b/drivers/gpio/gpio-sa1100.c
@@ -172,8 +172,7 @@ static struct irq_domain *sa1100_gpio_irqdomain;
  * irq_controller_lock held, and IRQs disabled.  Decode the IRQ
  * and call the handler.
  */
-static void
-sa1100_gpio_handler(unsigned int __irq, struct irq_desc *desc)
+static void sa1100_gpio_handler(struct irq_desc *desc)
 {
         unsigned int irq, mask;
 
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index 458d9d7952b8..9c6b96707c9f 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -706,4 +706,3 @@ module_exit(sx150x_exit);
 MODULE_AUTHOR("Gregory Bean <gbean@codeaurora.org>");
 MODULE_DESCRIPTION("Driver for Semtech SX150X I2C GPIO Expanders");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("i2c:sx150x");
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 9b14aafb576d..027e5f47dd28 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -266,7 +266,7 @@ static void tegra_gpio_irq_shutdown(struct irq_data *d)
         gpiochip_unlock_as_irq(&tegra_gpio_chip, gpio);
 }
 
-static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void tegra_gpio_irq_handler(struct irq_desc *desc)
 {
         int port;
         int pin;
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index 5a492054589f..30653e6319e9 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -192,7 +192,7 @@ out:
         return ret;
 }
 
-static void timbgpio_irq(unsigned int irq, struct irq_desc *desc)
+static void timbgpio_irq(struct irq_desc *desc)
 {
         struct timbgpio *tgpio = irq_desc_get_handler_data(desc);
         struct irq_data *data = irq_desc_get_irq_data(desc);
diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c
index bbac92ae4c32..87bb1b1eee8d 100644
--- a/drivers/gpio/gpio-tz1090.c
+++ b/drivers/gpio/gpio-tz1090.c
@@ -375,7 +375,7 @@ static int gpio_set_irq_wake(struct irq_data *data, unsigned int on)
 #define gpio_set_irq_wake NULL
 #endif
 
-static void tz1090_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void tz1090_gpio_irq_handler(struct irq_desc *desc)
 {
         irq_hw_number_t hw;
         unsigned int irq_stat, irq_no;
@@ -400,7 +400,7 @@ static void tz1090_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
                                 == IRQ_TYPE_EDGE_BOTH)
                         tz1090_gpio_irq_next_edge(bank, hw);
 
-                generic_handle_irq_desc(irq_no, child_desc);
+                generic_handle_irq_desc(child_desc);
         }
 }
 
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index 3d5714d4f405..069f9e4b7daa 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -120,7 +120,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
         return pinctrl_gpio_direction_output(chip->base + gpio);
 }
 
-static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void vf610_gpio_irq_handler(struct irq_desc *desc)
 {
         struct vf610_gpio_port *port = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -176,9 +176,9 @@ static int vf610_gpio_irq_set_type(struct irq_data *d, u32 type)
         port->irqc[d->hwirq] = irqc;
 
         if (type & IRQ_TYPE_LEVEL_MASK)
-                __irq_set_handler_locked(d->irq, handle_level_irq);
+                irq_set_handler_locked(d, handle_level_irq);
         else
-                __irq_set_handler_locked(d->irq, handle_edge_irq);
+                irq_set_handler_locked(d, handle_edge_irq);
 
         return 0;
 }
diff --git a/drivers/gpio/gpio-zx.c b/drivers/gpio/gpio-zx.c
index 12ee1969298c..4b8a26910705 100644
--- a/drivers/gpio/gpio-zx.c
+++ b/drivers/gpio/gpio-zx.c
@@ -177,7 +177,7 @@ static int zx_irq_type(struct irq_data *d, unsigned trigger)
         return 0;
 }
 
-static void zx_irq_handler(unsigned irq, struct irq_desc *desc)
+static void zx_irq_handler(struct irq_desc *desc)
 {
         unsigned long pending;
         int offset;
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 27348e7cb705..1d1a5865ede9 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -514,7 +514,7 @@ static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio,
  * application for that pin.
  * Note: A bug is reported if no handler is set for the gpio pin.
  */
-static void zynq_gpio_irqhandler(unsigned int irq, struct irq_desc *desc)
+static void zynq_gpio_irqhandler(struct irq_desc *desc)
 {
         u32 int_sts, int_enb;
         unsigned int bank_num;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 980c1f87866a..5db3445552b1 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1174,15 +1174,16 @@ EXPORT_SYMBOL_GPL(gpiod_is_active_low);
  * that the GPIO was actually requested.
  */
 
-static bool _gpiod_get_raw_value(const struct gpio_desc *desc)
+static int _gpiod_get_raw_value(const struct gpio_desc *desc)
 {
         struct gpio_chip        *chip;
-        bool value;
         int offset;
+        int value;
 
         chip = desc->chip;
         offset = gpio_chip_hwgpio(desc);
-        value = chip->get ? chip->get(chip, offset) : false;
+        value = chip->get ? chip->get(chip, offset) : -EIO;
+        value = value < 0 ? value : !!value;
         trace_gpio_value(desc_to_gpio(desc), 1, value);
         return value;
 }
@@ -1192,7 +1193,7 @@ static bool _gpiod_get_raw_value(const struct gpio_desc *desc)
  * @desc: gpio whose value will be returned
  *
  * Return the GPIO's raw value, i.e. the value of the physical line disregarding
- * its ACTIVE_LOW status.
+ * its ACTIVE_LOW status, or negative errno on failure.
  *
  * This function should be called from contexts where we cannot sleep, and will
  * complain if the GPIO chip functions potentially sleep.
@@ -1212,7 +1213,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_raw_value);
  * @desc: gpio whose value will be returned
  *
  * Return the GPIO's logical value, i.e. taking the ACTIVE_LOW status into
- * account.
+ * account, or negative errno on failure.
  *
  * This function should be called from contexts where we cannot sleep, and will
  * complain if the GPIO chip functions potentially sleep.
@@ -1226,6 +1227,9 @@ int gpiod_get_value(const struct gpio_desc *desc)
         WARN_ON(desc->chip->can_sleep);
 
         value = _gpiod_get_raw_value(desc);
+        if (value < 0)
+                return value;
+
         if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
                 value = !value;
 
@@ -1548,7 +1552,7 @@ EXPORT_SYMBOL_GPL(gpiochip_unlock_as_irq);
  * @desc: gpio whose value will be returned
  *
  * Return the GPIO's raw value, i.e. the value of the physical line disregarding
- * its ACTIVE_LOW status.
+ * its ACTIVE_LOW status, or negative errno on failure.
  *
  * This function is to be called from contexts that can sleep.
  */
@@ -1566,7 +1570,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_raw_value_cansleep);
  * @desc: gpio whose value will be returned
  *
  * Return the GPIO's logical value, i.e. taking the ACTIVE_LOW status into
- * account.
+ * account, or negative errno on failure.
  *
  * This function is to be called from contexts that can sleep.
  */
@@ -1579,6 +1583,9 @@ int gpiod_get_value_cansleep(const struct gpio_desc *desc)
                 return 0;
 
         value = _gpiod_get_raw_value(desc);
+        if (value < 0)
+                return value;
+
         if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
                 value = !value;
 
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
index b1f73bee1368..b0d4b53b97f4 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
@@ -178,7 +178,6 @@ static int mdp5_hw_irqdomain_map(struct irq_domain *d,
 
         irq_set_chip_and_handler(irq, &mdp5_hw_irq_chip, handle_level_irq);
         irq_set_chip_data(irq, mdp5_kms);
-        set_irq_flags(irq, IRQF_VALID);
 
         return 0;
 }
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 243f99a80253..e5a38d202a21 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -912,7 +912,7 @@ static void ipu_irq_handle(struct ipu_soc *ipu, const int *regs, int num_regs)
         }
 }
 
-static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ipu_irq_handler(struct irq_desc *desc)
 {
         struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -925,7 +925,7 @@ static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
         chained_irq_exit(chip, desc);
 }
 
-static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ipu_err_irq_handler(struct irq_desc *desc)
 {
         struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -1099,8 +1099,7 @@ static int ipu_irq_init(struct ipu_soc *ipu)
         }
 
         ret = irq_alloc_domain_generic_chips(ipu->domain, 32, 1, "IPU",
-                                             handle_level_irq, 0,
-                                             IRQF_VALID, 0);
+                                             handle_level_irq, 0, 0, 0);
         if (ret < 0) {
                 dev_err(ipu->dev, "failed to alloc generic irq chips\n");
                 irq_domain_remove(ipu->domain);
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 500b262b89bb..e13c902e8966 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1140,8 +1140,8 @@ config SENSORS_NCT6775
         help
           If you say yes here you get support for the hardware monitoring
           functionality of the Nuvoton NCT6106D, NCT6775F, NCT6776F, NCT6779D,
-          NCT6791D, NCT6792D and compatible Super-I/O chips. This driver
-          replaces the w83627ehf driver for NCT6775F and NCT6776F.
+          NCT6791D, NCT6792D, NCT6793D, and compatible Super-I/O chips. This
+          driver replaces the w83627ehf driver for NCT6775F and NCT6776F.
 
           This driver can also be built as a module.  If so, the module
           will be called nct6775.
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index bd1c99deac71..8b4fa55e46c6 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -39,6 +39,7 @@
  * nct6779d    15      5       5       2+6    0xc560 0xc1    0x5ca3
  * nct6791d    15      6       6       2+6    0xc800 0xc1    0x5ca3
  * nct6792d    15      6       6       2+6    0xc910 0xc1    0x5ca3
+ * nct6793d    15      6       6       2+6    0xd120 0xc1    0x5ca3
  *
  * #temp lists the number of monitored temperature sources (first value) plus
  * the number of directly connectable temperature sensors (second value).
@@ -63,7 +64,7 @@
 
 #define USE_ALTERNATE
 
-enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792 };
+enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793 };
 
 /* used to set data->name = nct6775_device_names[data->sio_kind] */
 static const char * const nct6775_device_names[] = {
@@ -73,6 +74,17 @@ static const char * const nct6775_device_names[] = {
         "nct6779",
         "nct6791",
         "nct6792",
+        "nct6793",
+};
+
+static const char * const nct6775_sio_names[] __initconst = {
+        "NCT6106D",
+        "NCT6775F",
+        "NCT6776D/F",
+        "NCT6779D",
+        "NCT6791D",
+        "NCT6792D",
+        "NCT6793D",
 };
 
 static unsigned short force_id;
@@ -104,6 +116,7 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
 #define SIO_NCT6779_ID          0xc560
 #define SIO_NCT6791_ID          0xc800
 #define SIO_NCT6792_ID          0xc910
+#define SIO_NCT6793_ID          0xd120
 #define SIO_ID_MASK             0xFFF0
 
 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
@@ -354,6 +367,10 @@ static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
 
 /* NCT6776 specific data */
 
+/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
+#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
+#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
+
 static const s8 NCT6776_ALARM_BITS[] = {
         0, 1, 2, 3, 8, 21, 20, 16,      /* in0.. in7 */
         17, -1, -1, -1, -1, -1, -1,     /* in8..in14 */
@@ -533,7 +550,7 @@ static const s8 NCT6791_ALARM_BITS[] = {
         4, 5, 13, -1, -1, -1,           /* temp1..temp6 */
         12, 9 };                        /* intrusion0, intrusion1 */
 
-/* NCT6792 specific data */
+/* NCT6792/NCT6793 specific data */
 
 static const u16 NCT6792_REG_TEMP_MON[] = {
         0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
@@ -1056,6 +1073,7 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
         case nct6779:
         case nct6791:
         case nct6792:
+        case nct6793:
                 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
                   ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
                   reg == 0x402 ||
@@ -1407,6 +1425,7 @@ static void nct6775_update_pwm_limits(struct device *dev)
                 case nct6779:
                 case nct6791:
                 case nct6792:
+                case nct6793:
                         reg = nct6775_read_value(data,
                                         data->REG_CRITICAL_PWM_ENABLE[i]);
                         if (reg & data->CRITICAL_PWM_ENABLE_MASK)
@@ -2822,6 +2841,7 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
                 case nct6779:
                 case nct6791:
                 case nct6792:
+                case nct6793:
                         nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
                                             val);
                         reg = nct6775_read_value(data,
@@ -3256,7 +3276,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
                 pwm4pin = false;
                 pwm5pin = false;
                 pwm6pin = false;
-        } else {        /* NCT6779D, NCT6791D, or NCT6792D */
+        } else {        /* NCT6779D, NCT6791D, NCT6792D, or NCT6793D */
                 regval = superio_inb(sioreg, 0x1c);
 
                 fan3pin = !(regval & (1 << 5));
@@ -3269,7 +3289,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 
                 fan4min = fan4pin;
 
-                if (data->kind == nct6791 || data->kind == nct6792) {
+                if (data->kind == nct6791 || data->kind == nct6792 ||
+                    data->kind == nct6793) {
                         regval = superio_inb(sioreg, 0x2d);
                         fan6pin = (regval & (1 << 1));
                         pwm6pin = (regval & (1 << 0));
@@ -3528,8 +3549,8 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
                 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-                data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-                data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+                data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+                data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                 data->REG_PWM[0] = NCT6775_REG_PWM;
                 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3600,8 +3621,8 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
                 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-                data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-                data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+                data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+                data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                 data->REG_PWM[0] = NCT6775_REG_PWM;
                 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3643,6 +3664,7 @@ static int nct6775_probe(struct platform_device *pdev)
                 break;
         case nct6791:
         case nct6792:
+        case nct6793:
                 data->in_num = 15;
                 data->pwm_num = 6;
                 data->auto_pwm_num = 4;
@@ -3677,8 +3699,8 @@ static int nct6775_probe(struct platform_device *pdev)
                 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
                 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
                 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
-                data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
-                data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+                data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+                data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
                 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
                 data->REG_PWM[0] = NCT6775_REG_PWM;
                 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3918,6 +3940,7 @@ static int nct6775_probe(struct platform_device *pdev)
         case nct6779:
         case nct6791:
         case nct6792:
+        case nct6793:
                 break;
         }
 
@@ -3950,6 +3973,7 @@ static int nct6775_probe(struct platform_device *pdev)
                         break;
                 case nct6791:
                 case nct6792:
+                case nct6793:
                         tmp |= 0x7e;
                         break;
                 }
@@ -4047,7 +4071,8 @@ static int __maybe_unused nct6775_resume(struct device *dev)
         if (reg != data->sio_reg_enable)
                 superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
 
-        if (data->kind == nct6791 || data->kind == nct6792)
+        if (data->kind == nct6791 || data->kind == nct6792 ||
+            data->kind == nct6793)
                 nct6791_enable_io_mapping(sioreg);
 
         superio_exit(sioreg);
@@ -4106,15 +4131,6 @@ static struct platform_driver nct6775_driver = {
         .probe          = nct6775_probe,
 };
 
-static const char * const nct6775_sio_names[] __initconst = {
-        "NCT6106D",
-        "NCT6775F",
-        "NCT6776D/F",
-        "NCT6779D",
-        "NCT6791D",
-        "NCT6792D",
-};
-
 /* nct6775_find() looks for a '627 in the Super-I/O config space */
 static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
 {
@@ -4150,6 +4166,9 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
         case SIO_NCT6792_ID:
                 sio_data->kind = nct6792;
                 break;
+        case SIO_NCT6793_ID:
+                sio_data->kind = nct6793;
+                break;
         default:
                 if (val != 0xffff)
                         pr_debug("unsupported chip ID: 0x%04x\n", val);
@@ -4175,7 +4194,8 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
                 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
         }
 
-        if (sio_data->kind == nct6791 || sio_data->kind == nct6792)
+        if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
+            sio_data->kind == nct6793)
                 nct6791_enable_io_mapping(sioaddr);
 
         superio_exit(sioaddr);
@@ -4285,7 +4305,7 @@ static void __exit sensors_nct6775_exit(void)
 }
 
 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
-MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D/NCT6792D driver");
+MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
 MODULE_LICENSE("GPL");
 
 module_init(sensors_nct6775_init);
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index da4c6979fbb8..aa26f3c3416b 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -56,7 +56,6 @@ config INFINIBAND_ADDR_TRANS
 
 source "drivers/infiniband/hw/mthca/Kconfig"
 source "drivers/infiniband/hw/qib/Kconfig"
-source "drivers/infiniband/hw/ehca/Kconfig"
 source "drivers/infiniband/hw/cxgb3/Kconfig"
 source "drivers/infiniband/hw/cxgb4/Kconfig"
 source "drivers/infiniband/hw/mlx4/Kconfig"
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index 1bdb9996d371..aded2a5cc2d5 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -1,6 +1,5 @@
 obj-$(CONFIG_INFINIBAND_MTHCA)          += mthca/
 obj-$(CONFIG_INFINIBAND_QIB)            += qib/
-obj-$(CONFIG_INFINIBAND_EHCA)           += ehca/
 obj-$(CONFIG_INFINIBAND_CXGB3)          += cxgb3/
 obj-$(CONFIG_INFINIBAND_CXGB4)          += cxgb4/
 obj-$(CONFIG_MLX4_INFINIBAND)           += mlx4/
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index e9c6f2a5b52d..cd7d3bc78e34 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -65,12 +65,10 @@ static void combiner_unmask_irq(struct irq_data *data)
         __raw_writel(mask, combiner_base(data) + COMBINER_ENABLE_SET);
 }
 
-static void combiner_handle_cascade_irq(unsigned int __irq,
-                                        struct irq_desc *desc)
+static void combiner_handle_cascade_irq(struct irq_desc *desc)
 {
         struct combiner_chip_data *chip_data = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
-        unsigned int irq = irq_desc_get_irq(desc);
         unsigned int cascade_irq, combiner_irq;
         unsigned long status;
 
@@ -88,7 +86,7 @@ static void combiner_handle_cascade_irq(unsigned int __irq,
         cascade_irq = irq_find_mapping(combiner_irq_domain, combiner_irq);
 
         if (unlikely(!cascade_irq))
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
         else
                 generic_handle_irq(cascade_irq);
 
@@ -165,7 +163,7 @@ static int combiner_irq_domain_map(struct irq_domain *d, unsigned int irq,
 
         irq_set_chip_and_handler(irq, &combiner_chip, handle_level_irq);
         irq_set_chip_data(irq, &combiner_data[hw >> 3]);
-        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(irq);
 
         return 0;
 }
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 39b72da0c143..655cb967a1f2 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -200,7 +200,6 @@ static int armada_370_xp_msi_map(struct irq_domain *domain, unsigned int virq,
 {
         irq_set_chip_and_handler(virq, &armada_370_xp_msi_irq_chip,
                                  handle_simple_irq);
-        set_irq_flags(virq, IRQF_VALID);
 
         return 0;
 }
@@ -317,7 +316,7 @@ static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
                 irq_set_chip_and_handler(virq, &armada_370_xp_irq_chip,
                                         handle_level_irq);
         }
-        set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(virq);
 
         return 0;
 }
@@ -447,8 +446,7 @@ static void armada_370_xp_handle_msi_irq(struct pt_regs *regs, bool is_chained)
 static void armada_370_xp_handle_msi_irq(struct pt_regs *r, bool b) {}
 #endif
 
-static void armada_370_xp_mpic_handle_cascade_irq(unsigned int irq,
-                                                  struct irq_desc *desc)
+static void armada_370_xp_mpic_handle_cascade_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned long irqmap, irqn, irqsrc, cpuid;
diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c
index ed4ca9deca70..bf9cc5f2e839 100644
--- a/drivers/irqchip/irq-bcm2835.c
+++ b/drivers/irqchip/irq-bcm2835.c
@@ -96,7 +96,7 @@ struct armctrl_ic {
 static struct armctrl_ic intc __read_mostly;
 static void __exception_irq_entry bcm2835_handle_irq(
         struct pt_regs *regs);
-static void bcm2836_chained_handle_irq(unsigned int irq, struct irq_desc *desc);
+static void bcm2836_chained_handle_irq(struct irq_desc *desc);
 
 static void armctrl_mask_irq(struct irq_data *d)
 {
@@ -166,7 +166,7 @@ static int __init armctrl_of_init(struct device_node *node,
                         BUG_ON(irq <= 0);
                         irq_set_chip_and_handler(irq, &armctrl_chip,
                                 handle_level_irq);
-                        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+                        irq_set_probe(irq);
                 }
         }
 
@@ -245,7 +245,7 @@ static void __exception_irq_entry bcm2835_handle_irq(
                 handle_IRQ(irq_linear_revmap(intc.domain, hwirq), regs);
 }
 
-static void bcm2836_chained_handle_irq(unsigned int irq, struct irq_desc *desc)
+static void bcm2836_chained_handle_irq(struct irq_desc *desc)
 {
         u32 hwirq;
 
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index 409bdc6366c2..0fea985ef1dc 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -115,7 +115,7 @@ static inline void l1_writel(u32 val, void __iomem *reg)
                 writel(val, reg);
 }
 
-static void bcm7038_l1_irq_handle(unsigned int irq, struct irq_desc *desc)
+static void bcm7038_l1_irq_handle(struct irq_desc *desc)
 {
         struct bcm7038_l1_chip *intc = irq_desc_get_handler_data(desc);
         struct bcm7038_l1_cpu *cpu;
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index d3f976913a6f..61b18ab33ad9 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -56,7 +56,7 @@ struct bcm7120_l2_intc_data {
         const __be32 *map_mask_prop;
 };
 
-static void bcm7120_l2_intc_irq_handle(unsigned int irq, struct irq_desc *desc)
+static void bcm7120_l2_intc_irq_handle(struct irq_desc *desc)
 {
         struct bcm7120_l1_intc_data *data = irq_desc_get_handler_data(desc);
         struct bcm7120_l2_intc_data *b = data->b;
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index aedda06191eb..65cd341f331a 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -49,13 +49,12 @@ struct brcmstb_l2_intc_data {
         u32 saved_mask; /* for suspend/resume */
 };
 
-static void brcmstb_l2_intc_irq_handle(unsigned int __irq,
-                                       struct irq_desc *desc)
+static void brcmstb_l2_intc_irq_handle(struct irq_desc *desc)
 {
         struct brcmstb_l2_intc_data *b = irq_desc_get_handler_data(desc);
         struct irq_chip_generic *gc = irq_get_domain_generic_chip(b->domain, 0);
         struct irq_chip *chip = irq_desc_get_chip(desc);
-        unsigned int irq = irq_desc_get_irq(desc);
+        unsigned int irq;
         u32 status;
 
         chained_irq_enter(chip, desc);
@@ -65,7 +64,7 @@ static void brcmstb_l2_intc_irq_handle(unsigned int __irq,
 
         if (status == 0) {
                 raw_spin_lock(&desc->lock);
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
                 raw_spin_unlock(&desc->lock);
                 goto out;
         }
diff --git a/drivers/irqchip/irq-clps711x.c b/drivers/irqchip/irq-clps711x.c
index 2dd929eed9e0..eb5eb0cd414d 100644
--- a/drivers/irqchip/irq-clps711x.c
+++ b/drivers/irqchip/irq-clps711x.c
@@ -132,14 +132,14 @@ static int __init clps711x_intc_irq_map(struct irq_domain *h, unsigned int virq,
                                         irq_hw_number_t hw)
 {
         irq_flow_handler_t handler = handle_level_irq;
-        unsigned int flags = IRQF_VALID | IRQF_PROBE;
+        unsigned int flags = 0;
 
         if (!clps711x_irqs[hw].flags)
                 return 0;
 
         if (clps711x_irqs[hw].flags & CLPS711X_FLAG_FIQ) {
                 handler = handle_bad_irq;
-                flags |= IRQF_NOAUTOEN;
+                flags |= IRQ_NOAUTOEN;
         } else if (clps711x_irqs[hw].eoi) {
                 handler = handle_fasteoi_irq;
         }
@@ -149,7 +149,7 @@ static int __init clps711x_intc_irq_map(struct irq_domain *h, unsigned int virq,
                 writel_relaxed(0, clps711x_intc->base + clps711x_irqs[hw].eoi);
 
         irq_set_chip_and_handler(virq, &clps711x_intc_chip, handler);
-        set_irq_flags(virq, flags);
+        irq_modify_status(virq, IRQ_NOPROBE, flags);
 
         return 0;
 }
diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
index efd95d9955e7..052f266364c0 100644
--- a/drivers/irqchip/irq-dw-apb-ictl.c
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -26,7 +26,7 @@
 #define APB_INT_FINALSTATUS_H   0x34
 #define APB_INT_BASE_OFFSET     0x04
 
-static void dw_apb_ictl_handler(unsigned int irq, struct irq_desc *desc)
+static void dw_apb_ictl_handler(struct irq_desc *desc)
 {
         struct irq_domain *d = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index db04fc1f56b2..12985daa66ab 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -95,8 +95,8 @@ static void gicv2m_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
         struct v2m_data *v2m = irq_data_get_irq_chip_data(data);
         phys_addr_t addr = v2m->res.start + V2M_MSI_SETSPI_NS;
 
-        msg->address_hi = (u32) (addr >> 32);
-        msg->address_lo = (u32) (addr);
+        msg->address_hi = upper_32_bits(addr);
+        msg->address_lo = lower_32_bits(addr);
         msg->data = data->hwirq;
 }
 
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 26b55c53755f..ac7ae2b3cb83 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -898,8 +898,10 @@ retry_baser:
                          * non-cacheable as well.
                          */
                         shr = tmp & GITS_BASER_SHAREABILITY_MASK;
-                        if (!shr)
+                        if (!shr) {
                                 cache = GITS_BASER_nC;
+                                __flush_dcache_area(base, alloc_size);
+                        }
                         goto retry_baser;
                 }
 
@@ -1140,6 +1142,8 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
                 return NULL;
         }
 
+        __flush_dcache_area(itt, sz);
+
         dev->its = its;
         dev->itt = itt;
         dev->nr_ites = nr_ites;
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 7deed6ef54c2..36ecfc870e5a 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -70,11 +70,6 @@ static inline int gic_irq_in_rdist(struct irq_data *d)
         return gic_irq(d) < 32;
 }
 
-static inline bool forwarded_irq(struct irq_data *d)
-{
-        return d->handler_data != NULL;
-}
-
 static inline void __iomem *gic_dist_base(struct irq_data *d)
 {
         if (gic_irq_in_rdist(d))        /* SGI+PPI -> SGI_base for this CPU */
@@ -249,7 +244,7 @@ static void gic_eoimode1_mask_irq(struct irq_data *d)
          * disabled/masked will not get "stuck", because there is
          * noone to deactivate it (guest is being terminated).
          */
-        if (forwarded_irq(d))
+        if (irqd_is_forwarded_to_vcpu(d))
                 gic_poke_irq(d, GICD_ICACTIVER);
 }
 
@@ -324,7 +319,7 @@ static void gic_eoimode1_eoi_irq(struct irq_data *d)
          * No need to deactivate an LPI, or an interrupt that
          * is is getting forwarded to a vcpu.
          */
-        if (gic_irq(d) >= 8192 || forwarded_irq(d))
+        if (gic_irq(d) >= 8192 || irqd_is_forwarded_to_vcpu(d))
                 return;
         gic_write_dir(gic_irq(d));
 }
@@ -357,7 +352,10 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
 
 static int gic_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu)
 {
-        d->handler_data = vcpu;
+        if (vcpu)
+                irqd_set_forwarded_to_vcpu(d);
+        else
+                irqd_clr_forwarded_to_vcpu(d);
         return 0;
 }
 
@@ -754,13 +752,13 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
                 irq_set_percpu_devid(irq);
                 irq_domain_set_info(d, irq, hw, chip, d->host_data,
                                     handle_percpu_devid_irq, NULL, NULL);
-                set_irq_flags(irq, IRQF_VALID | IRQF_NOAUTOEN);
+                irq_set_status_flags(irq, IRQ_NOAUTOEN);
         }
         /* SPIs */
         if (hw >= 32 && hw < gic_data.irq_nr) {
                 irq_domain_set_info(d, irq, hw, chip, d->host_data,
                                     handle_fasteoi_irq, NULL, NULL);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+                irq_set_probe(irq);
         }
         /* LPIs */
         if (hw >= 8192 && hw < GIC_ID_NR) {
@@ -768,7 +766,6 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
                         return -EPERM;
                 irq_domain_set_info(d, irq, hw, chip, d->host_data,
                                     handle_fasteoi_irq, NULL, NULL);
-                set_irq_flags(irq, IRQF_VALID);
         }
 
         return 0;
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index e6b7ed537952..982c09c2d791 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -145,29 +145,10 @@ static inline bool cascading_gic_irq(struct irq_data *d)
         void *data = irq_data_get_irq_handler_data(d);
 
         /*
-         * If handler_data pointing to one of the secondary GICs, then
-         * this is a cascading interrupt, and it cannot possibly be
-         * forwarded.
+         * If handler_data is set, this is a cascading interrupt, and
+         * it cannot possibly be forwarded.
          */
-        if (data >= (void *)(gic_data + 1) &&
-            data <  (void *)(gic_data + MAX_GIC_NR))
-                return true;
-
-        return false;
-}
-
-static inline bool forwarded_irq(struct irq_data *d)
-{
-        /*
-         * A forwarded interrupt:
-         * - is on the primary GIC
-         * - has its handler_data set to a value
-         * - that isn't a secondary GIC
-         */
-        if (d->handler_data && !cascading_gic_irq(d))
-                return true;
-
-        return false;
+        return data != NULL;
 }
 
 /*
@@ -201,7 +182,7 @@ static void gic_eoimode1_mask_irq(struct irq_data *d)
          * disabled/masked will not get "stuck", because there is
          * noone to deactivate it (guest is being terminated).
          */
-        if (forwarded_irq(d))
+        if (irqd_is_forwarded_to_vcpu(d))
                 gic_poke_irq(d, GIC_DIST_ACTIVE_CLEAR);
 }
 
@@ -218,7 +199,7 @@ static void gic_eoi_irq(struct irq_data *d)
 static void gic_eoimode1_eoi_irq(struct irq_data *d)
 {
         /* Do not deactivate an IRQ forwarded to a vcpu. */
-        if (forwarded_irq(d))
+        if (irqd_is_forwarded_to_vcpu(d))
                 return;
 
         writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_DEACTIVATE);
@@ -296,7 +277,10 @@ static int gic_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu)
         if (cascading_gic_irq(d))
                 return -EINVAL;
 
-        d->handler_data = vcpu;
+        if (vcpu)
+                irqd_set_forwarded_to_vcpu(d);
+        else
+                irqd_clr_forwarded_to_vcpu(d);
         return 0;
 }
 
@@ -357,7 +341,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
         } while (1);
 }
 
-static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
+static void gic_handle_cascade_irq(struct irq_desc *desc)
 {
         struct gic_chip_data *chip_data = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -376,7 +360,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 
         cascade_irq = irq_find_mapping(chip_data->domain, gic_irq);
         if (unlikely(gic_irq < 32 || gic_irq > 1020))
-                handle_bad_irq(cascade_irq, desc);
+                handle_bad_irq(desc);
         else
                 generic_handle_irq(cascade_irq);
 
@@ -906,11 +890,11 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
                 irq_set_percpu_devid(irq);
                 irq_domain_set_info(d, irq, hw, chip, d->host_data,
                                     handle_percpu_devid_irq, NULL, NULL);
-                set_irq_flags(irq, IRQF_VALID | IRQF_NOAUTOEN);
+                irq_set_status_flags(irq, IRQ_NOAUTOEN);
         } else {
                 irq_domain_set_info(d, irq, hw, chip, d->host_data,
                                     handle_fasteoi_irq, NULL, NULL);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+                irq_set_probe(irq);
         }
         return 0;
 }
@@ -1119,12 +1103,49 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 #ifdef CONFIG_OF
 static int gic_cnt __initdata;
 
+static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
+{
+        struct resource cpuif_res;
+
+        of_address_to_resource(node, 1, &cpuif_res);
+
+        if (!is_hyp_mode_available())
+                return false;
+        if (resource_size(&cpuif_res) < SZ_8K)
+                return false;
+        if (resource_size(&cpuif_res) == SZ_128K) {
+                u32 val_low, val_high;
+
+                /*
+                 * Verify that we have the first 4kB of a GIC400
+                 * aliased over the first 64kB by checking the
+                 * GICC_IIDR register on both ends.
+                 */
+                val_low = readl_relaxed(*base + GIC_CPU_IDENT);
+                val_high = readl_relaxed(*base + GIC_CPU_IDENT + 0xf000);
+                if ((val_low & 0xffff0fff) != 0x0202043B ||
+                    val_low != val_high)
+                        return false;
+
+                /*
+                 * Move the base up by 60kB, so that we have a 8kB
+                 * contiguous region, which allows us to use GICC_DIR
+                 * at its normal offset. Please pass me that bucket.
+                 */
+                *base += 0xf000;
+                cpuif_res.start += 0xf000;
+                pr_warn("GIC: Adjusting CPU interface base to %pa",
+                        &cpuif_res.start);
+        }
+
+        return true;
+}
+
 static int __init
 gic_of_init(struct device_node *node, struct device_node *parent)
 {
         void __iomem *cpu_base;
         void __iomem *dist_base;
-        struct resource cpu_res;
         u32 percpu_offset;
         int irq;
 
@@ -1137,14 +1158,11 @@ gic_of_init(struct device_node *node, struct device_node *parent)
         cpu_base = of_iomap(node, 1);
         WARN(!cpu_base, "unable to map gic cpu registers\n");
 
-        of_address_to_resource(node, 1, &cpu_res);
-
         /*
          * Disable split EOI/Deactivate if either HYP is not available
          * or the CPU interface is too small.
          */
-        if (gic_cnt == 0 && (!is_hyp_mode_available() ||
-                             resource_size(&cpu_res) < SZ_8K))
+        if (gic_cnt == 0 && !gic_check_eoimode(node, &cpu_base))
                 static_key_slow_dec(&supports_deactivate);
 
         if (of_property_read_u32(node, "cpu-offset", &percpu_offset))
diff --git a/drivers/irqchip/irq-hip04.c b/drivers/irqchip/irq-hip04.c
index a0128c7c98dd..8f3ca8f3a62b 100644
--- a/drivers/irqchip/irq-hip04.c
+++ b/drivers/irqchip/irq-hip04.c
@@ -307,11 +307,11 @@ static int hip04_irq_domain_map(struct irq_domain *d, unsigned int irq,
                 irq_set_percpu_devid(irq);
                 irq_set_chip_and_handler(irq, &hip04_irq_chip,
                                          handle_percpu_devid_irq);
-                set_irq_flags(irq, IRQF_VALID | IRQF_NOAUTOEN);
+                irq_set_status_flags(irq, IRQ_NOAUTOEN);
         } else {
                 irq_set_chip_and_handler(irq, &hip04_irq_chip,
                                          handle_fasteoi_irq);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+                irq_set_probe(irq);
         }
         irq_set_chip_data(irq, d->host_data);
         return 0;
diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index 4836102ba312..e484fd255321 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -352,7 +352,7 @@ void __init init_i8259_irqs(void)
         __init_i8259_irqs(NULL);
 }
 
-static void i8259_irq_dispatch(unsigned int __irq, struct irq_desc *desc)
+static void i8259_irq_dispatch(struct irq_desc *desc)
 {
         struct irq_domain *domain = irq_desc_get_handler_data(desc);
         int hwirq = i8259_irq();
diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index 841604b81004..c02d29c9dc05 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -218,7 +218,7 @@ static int pdc_irq_set_wake(struct irq_data *data, unsigned int on)
         return 0;
 }
 
-static void pdc_intc_perip_isr(unsigned int __irq, struct irq_desc *desc)
+static void pdc_intc_perip_isr(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct pdc_intc_priv *priv;
@@ -240,7 +240,7 @@ found:
         generic_handle_irq(irq_no);
 }
 
-static void pdc_intc_syswake_isr(unsigned int irq, struct irq_desc *desc)
+static void pdc_intc_syswake_isr(struct irq_desc *desc)
 {
         struct pdc_intc_priv *priv;
         unsigned int syswake, irq_no;
diff --git a/drivers/irqchip/irq-keystone.c b/drivers/irqchip/irq-keystone.c
index c1517267b5db..deb89d63a728 100644
--- a/drivers/irqchip/irq-keystone.c
+++ b/drivers/irqchip/irq-keystone.c
@@ -83,7 +83,7 @@ static void keystone_irq_ack(struct irq_data *d)
         /* nothing to do here */
 }
 
-static void keystone_irq_handler(unsigned __irq, struct irq_desc *desc)
+static void keystone_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct keystone_irq_device *kirq = irq_desc_get_handler_data(desc);
@@ -127,7 +127,7 @@ static int keystone_irq_map(struct irq_domain *h, unsigned int virq,
 
         irq_set_chip_data(virq, kirq);
         irq_set_chip_and_handler(virq, &kirq->chip, handle_level_irq);
-        set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(virq);
         return 0;
 }
 
diff --git a/drivers/irqchip/irq-metag-ext.c b/drivers/irqchip/irq-metag-ext.c
index 5f4c52928d16..8c38b3d92e1c 100644
--- a/drivers/irqchip/irq-metag-ext.c
+++ b/drivers/irqchip/irq-metag-ext.c
@@ -446,7 +446,7 @@ static int meta_intc_irq_set_type(struct irq_data *data, unsigned int flow_type)
  * Whilst using TR2 to detect external interrupts is a software convention it is
  * (hopefully) unlikely to change.
  */
-static void meta_intc_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void meta_intc_irq_demux(struct irq_desc *desc)
 {
         struct meta_intc_priv *priv = &meta_intc_priv;
         irq_hw_number_t hw;
diff --git a/drivers/irqchip/irq-metag.c b/drivers/irqchip/irq-metag.c
index 3d23ce3edb5c..a5f053bd2f44 100644
--- a/drivers/irqchip/irq-metag.c
+++ b/drivers/irqchip/irq-metag.c
@@ -220,7 +220,7 @@ static int metag_internal_irq_set_affinity(struct irq_data *data,
  *      occurred. It is this function's job to demux this irq and
  *      figure out exactly which trigger needs servicing.
  */
-static void metag_internal_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void metag_internal_irq_demux(struct irq_desc *desc)
 {
         struct metag_internal_irq_priv *priv = irq_desc_get_handler_data(desc);
         irq_hw_number_t hw;
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 1764bcf8ee6b..af2f16bb8a94 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -546,7 +546,7 @@ static void __gic_irq_dispatch(void)
         gic_handle_shared_int(false);
 }
 
-static void gic_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void gic_irq_dispatch(struct irq_desc *desc)
 {
         gic_handle_local_int(true);
         gic_handle_shared_int(true);
diff --git a/drivers/irqchip/irq-mmp.c b/drivers/irqchip/irq-mmp.c
index 781ed6e71dbb..013fc9659a84 100644
--- a/drivers/irqchip/irq-mmp.c
+++ b/drivers/irqchip/irq-mmp.c
@@ -129,7 +129,7 @@ struct irq_chip icu_irq_chip = {
         .irq_unmask     = icu_unmask_irq,
 };
 
-static void icu_mux_irq_demux(unsigned int __irq, struct irq_desc *desc)
+static void icu_mux_irq_demux(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct irq_domain *domain;
@@ -164,7 +164,6 @@ static int mmp_irq_domain_map(struct irq_domain *d, unsigned int irq,
                               irq_hw_number_t hw)
 {
         irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
-        set_irq_flags(irq, IRQF_VALID);
         return 0;
 }
 
@@ -234,7 +233,6 @@ void __init icu_init_irq(void)
         for (irq = 0; irq < 64; irq++) {
                 icu_mask_irq(irq_get_irq_data(irq));
                 irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
-                set_irq_flags(irq, IRQF_VALID);
         }
         irq_set_default_host(icu_data[0].domain);
         set_handle_irq(mmp_handle_irq);
@@ -337,7 +335,6 @@ void __init mmp2_init_icu(void)
                         irq_set_chip_and_handler(irq, &icu_irq_chip,
                                                  handle_level_irq);
                 }
-                set_irq_flags(irq, IRQF_VALID);
         }
         irq_set_default_host(icu_data[0].domain);
         set_handle_irq(mmp2_handle_irq);
diff --git a/drivers/irqchip/irq-mxs.c b/drivers/irqchip/irq-mxs.c
index 1faf812f3dc8..604df63e2edf 100644
--- a/drivers/irqchip/irq-mxs.c
+++ b/drivers/irqchip/irq-mxs.c
@@ -84,7 +84,6 @@ static int icoll_irq_domain_map(struct irq_domain *d, unsigned int virq,
                                 irq_hw_number_t hw)
 {
         irq_set_chip_and_handler(virq, &mxs_icoll_chip, handle_level_irq);
-        set_irq_flags(virq, IRQF_VALID);
 
         return 0;
 }
diff --git a/drivers/irqchip/irq-orion.c b/drivers/irqchip/irq-orion.c
index 5ea999a724b5..be4c5a8c9659 100644
--- a/drivers/irqchip/irq-orion.c
+++ b/drivers/irqchip/irq-orion.c
@@ -106,7 +106,7 @@ IRQCHIP_DECLARE(orion_intc, "marvell,orion-intc", orion_irq_init);
 #define ORION_BRIDGE_IRQ_CAUSE  0x00
 #define ORION_BRIDGE_IRQ_MASK   0x04
 
-static void orion_bridge_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void orion_bridge_irq_handler(struct irq_desc *desc)
 {
         struct irq_domain *d = irq_desc_get_handler_data(desc);
 
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 0670ab4e3897..9525335723f6 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -283,6 +283,9 @@ static int intc_irqpin_irq_set_type(struct irq_data *d, unsigned int type)
 static int intc_irqpin_irq_set_wake(struct irq_data *d, unsigned int on)
 {
         struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d);
+        int hw_irq = irqd_to_hwirq(d);
+
+        irq_set_irq_wake(p->irq[hw_irq].requested_irq, on);
 
         if (!p->clk)
                 return 0;
@@ -332,6 +335,12 @@ static irqreturn_t intc_irqpin_shared_irq_handler(int irq, void *dev_id)
         return status;
 }
 
+/*
+ * This lock class tells lockdep that INTC External IRQ Pin irqs are in a
+ * different category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key intc_irqpin_irq_lock_class;
+
 static int intc_irqpin_irq_domain_map(struct irq_domain *h, unsigned int virq,
                                       irq_hw_number_t hw)
 {
@@ -342,8 +351,8 @@ static int intc_irqpin_irq_domain_map(struct irq_domain *h, unsigned int virq,
 
         intc_irqpin_dbg(&p->irq[hw], "map");
         irq_set_chip_data(virq, h->host_data);
+        irq_set_lockdep_class(virq, &intc_irqpin_irq_lock_class);
         irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq);
-        set_irq_flags(virq, IRQF_VALID); /* kill me now */
         return 0;
 }
 
diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
index 2aa3add711a6..35bf97ba4a3d 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -121,6 +121,9 @@ static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
 static int irqc_irq_set_wake(struct irq_data *d, unsigned int on)
 {
         struct irqc_priv *p = irq_data_get_irq_chip_data(d);
+        int hw_irq = irqd_to_hwirq(d);
+
+        irq_set_irq_wake(p->irq[hw_irq].requested_irq, on);
 
         if (!p->clk)
                 return 0;
@@ -150,6 +153,12 @@ static irqreturn_t irqc_irq_handler(int irq, void *dev_id)
         return IRQ_NONE;
 }
 
+/*
+ * This lock class tells lockdep that IRQC irqs are in a different
+ * category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key irqc_irq_lock_class;
+
 static int irqc_irq_domain_map(struct irq_domain *h, unsigned int virq,
                                irq_hw_number_t hw)
 {
@@ -157,6 +166,7 @@ static int irqc_irq_domain_map(struct irq_domain *h, unsigned int virq,
 
         irqc_dbg(&p->irq[hw], "map");
         irq_set_chip_data(virq, h->host_data);
+        irq_set_lockdep_class(virq, &irqc_irq_lock_class);
         irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq);
         return 0;
 }
diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c
index 506d9f20ca51..7154b011ddd2 100644
--- a/drivers/irqchip/irq-s3c24xx.c
+++ b/drivers/irqchip/irq-s3c24xx.c
@@ -298,7 +298,7 @@ static struct irq_chip s3c_irq_eint0t4 = {
         .irq_set_type   = s3c_irqext0_type,
 };
 
-static void s3c_irq_demux(unsigned int __irq, struct irq_desc *desc)
+static void s3c_irq_demux(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct s3c_irq_data *irq_data = irq_desc_get_chip_data(desc);
@@ -466,13 +466,11 @@ static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq,
 
         irq_set_chip_data(virq, irq_data);
 
-        set_irq_flags(virq, IRQF_VALID);
-
         if (parent_intc && irq_data->type != S3C_IRQTYPE_NONE) {
                 if (irq_data->parent_irq > 31) {
                         pr_err("irq-s3c24xx: parent irq %lu is out of range\n",
                                irq_data->parent_irq);
-                        goto err;
+                        return -EINVAL;
                 }
 
                 parent_irq_data = &parent_intc->irqs[irq_data->parent_irq];
@@ -485,18 +483,12 @@ static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq,
                 if (!irqno) {
                         pr_err("irq-s3c24xx: could not find mapping for parent irq %lu\n",
                                irq_data->parent_irq);
-                        goto err;
+                        return -EINVAL;
                 }
                 irq_set_chained_handler(irqno, s3c_irq_demux);
         }
 
         return 0;
-
-err:
-        set_irq_flags(virq, 0);
-
-        /* the only error can result from bad mapping data*/
-        return -EINVAL;
 }
 
 static const struct irq_domain_ops s3c24xx_irq_ops = {
@@ -1174,8 +1166,6 @@ static int s3c24xx_irq_map_of(struct irq_domain *h, unsigned int virq,
 
         irq_set_chip_data(virq, irq_data);
 
-        set_irq_flags(virq, IRQF_VALID);
-
         return 0;
 }
 
diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c
index 4ad3e7c69aa7..0704362f4c82 100644
--- a/drivers/irqchip/irq-sun4i.c
+++ b/drivers/irqchip/irq-sun4i.c
@@ -83,7 +83,7 @@ static int sun4i_irq_map(struct irq_domain *d, unsigned int virq,
                          irq_hw_number_t hw)
 {
         irq_set_chip_and_handler(virq, &sun4i_irq_chip, handle_fasteoi_irq);
-        set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(virq);
 
         return 0;
 }
diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 772a82cacbf7..c143dd58410c 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -58,7 +58,7 @@ static inline u32 sunxi_sc_nmi_read(struct irq_chip_generic *gc, u32 off)
         return irq_reg_readl(gc, off);
 }
 
-static void sunxi_sc_nmi_handle_irq(unsigned int irq, struct irq_desc *desc)
+static void sunxi_sc_nmi_handle_irq(struct irq_desc *desc)
 {
         struct irq_domain *domain = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/irqchip/irq-tb10x.c b/drivers/irqchip/irq-tb10x.c
index 331829661366..848d782a2a3b 100644
--- a/drivers/irqchip/irq-tb10x.c
+++ b/drivers/irqchip/irq-tb10x.c
@@ -97,7 +97,7 @@ static int tb10x_irq_set_type(struct irq_data *data, unsigned int flow_type)
         return IRQ_SET_MASK_OK;
 }
 
-static void tb10x_irq_cascade(unsigned int __irq, struct irq_desc *desc)
+static void tb10x_irq_cascade(struct irq_desc *desc)
 {
         struct irq_domain *domain = irq_desc_get_handler_data(desc);
         unsigned int irq = irq_desc_get_irq(desc);
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 16123f688768..598ab3f0e0ac 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -65,19 +65,19 @@ static void fpga_irq_unmask(struct irq_data *d)
         writel(mask, f->base + IRQ_ENABLE_SET);
 }
 
-static void fpga_irq_handle(unsigned int __irq, struct irq_desc *desc)
+static void fpga_irq_handle(struct irq_desc *desc)
 {
         struct fpga_irq_data *f = irq_desc_get_handler_data(desc);
-        unsigned int irq = irq_desc_get_irq(desc);
         u32 status = readl(f->base + IRQ_STATUS);
 
         if (status == 0) {
-                do_bad_IRQ(irq, desc);
+                do_bad_IRQ(desc);
                 return;
         }
 
         do {
-                irq = ffs(status) - 1;
+                unsigned int irq = ffs(status) - 1;
+
                 status &= ~(1 << irq);
                 generic_handle_irq(irq_find_mapping(f->domain, irq));
         } while (status);
@@ -128,7 +128,7 @@ static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq,
         irq_set_chip_data(irq, f);
         irq_set_chip_and_handler(irq, &f->chip,
                                 handle_level_irq);
-        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(irq);
         return 0;
 }
 
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 03846dff4212..b956dfffe78c 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -201,7 +201,7 @@ static int vic_irqdomain_map(struct irq_domain *d, unsigned int irq,
                 return -EPERM;
         irq_set_chip_and_handler(irq, &vic_chip, handle_level_irq);
         irq_set_chip_data(irq, v->base);
-        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        irq_set_probe(irq);
         return 0;
 }
 
@@ -225,7 +225,7 @@ static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
         return handled;
 }
 
-static void vic_handle_irq_cascaded(unsigned int irq, struct irq_desc *desc)
+static void vic_handle_irq_cascaded(struct irq_desc *desc)
 {
         u32 stat, hwirq;
         struct irq_chip *host_chip = irq_desc_get_chip(desc);
diff --git a/drivers/irqchip/irq-vt8500.c b/drivers/irqchip/irq-vt8500.c
index 8371d9978d31..f9af0af21751 100644
--- a/drivers/irqchip/irq-vt8500.c
+++ b/drivers/irqchip/irq-vt8500.c
@@ -167,7 +167,6 @@ static int vt8500_irq_map(struct irq_domain *h, unsigned int virq,
                                                         irq_hw_number_t hw)
 {
         irq_set_chip_and_handler(virq, &vt8500_irq_chip, handle_level_irq);
-        set_irq_flags(virq, IRQF_VALID);
 
         return 0;
 }
diff --git a/drivers/irqchip/spear-shirq.c b/drivers/irqchip/spear-shirq.c
index 4cbd9c5dc1e6..1ccd2abed65f 100644
--- a/drivers/irqchip/spear-shirq.c
+++ b/drivers/irqchip/spear-shirq.c
@@ -182,7 +182,7 @@ static struct spear_shirq *spear320_shirq_blocks[] = {
         &spear320_shirq_intrcomm_ras,
 };
 
-static void shirq_handler(unsigned __irq, struct irq_desc *desc)
+static void shirq_handler(struct irq_desc *desc)
 {
         struct spear_shirq *shirq = irq_desc_get_handler_data(desc);
         u32 pend;
@@ -211,7 +211,6 @@ static void __init spear_shirq_register(struct spear_shirq *shirq,
         for (i = 0; i < shirq->nr_irqs; i++) {
                 irq_set_chip_and_handler(shirq->virq_base + i,
                                          shirq->irq_chip, handle_simple_irq);
-                set_irq_flags(shirq->virq_base + i, IRQF_VALID);
                 irq_set_chip_data(shirq->virq_base + i, shirq);
         }
 }
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 70f4255ff291..42990f2d0317 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -170,6 +170,7 @@ config LEDS_SUNFIRE
 
 config LEDS_IPAQ_MICRO
         tristate "LED Support for the Compaq iPAQ h3xxx"
+        depends on LEDS_CLASS
         depends on MFD_IPAQ_MICRO
         help
           Choose this option if you want to use the notification LED on
@@ -229,7 +230,7 @@ config LEDS_LP55XX_COMMON
         tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501"
         depends on LEDS_LP5521 || LEDS_LP5523 || LEDS_LP5562 || LEDS_LP8501
         select FW_LOADER
-        select FW_LOADER_USER_HELPER_FALLBACK
+        select FW_LOADER_USER_HELPER
         help
           This option supports common operations for LP5521/5523/55231/5562/8501
           devices.
diff --git a/drivers/leds/leds-aat1290.c b/drivers/leds/leds-aat1290.c
index fd7c25fd29c1..ac77d36b630c 100644
--- a/drivers/leds/leds-aat1290.c
+++ b/drivers/leds/leds-aat1290.c
@@ -331,7 +331,7 @@ static void aat1290_led_validate_mm_current(struct aat1290_led *led,
         cfg->max_brightness = b + 1;
 }
 
-int init_mm_current_scale(struct aat1290_led *led,
+static int init_mm_current_scale(struct aat1290_led *led,
                         struct aat1290_led_config_data *cfg)
 {
         int max_mm_current_percent[] = { 20, 22, 25, 28, 32, 36, 40, 45, 50, 56,
@@ -559,6 +559,7 @@ static const struct of_device_id aat1290_led_dt_match[] = {
         { .compatible = "skyworks,aat1290" },
         {},
 };
+MODULE_DEVICE_TABLE(of, aat1290_led_dt_match);
 
 static struct platform_driver aat1290_led_driver = {
         .probe          = aat1290_led_probe,
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index 986fe1e28f84..1793727bc9ae 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -395,6 +395,7 @@ static const struct of_device_id bcm6328_leds_of_match[] = {
         { .compatible = "brcm,bcm6328-leds", },
         { },
 };
+MODULE_DEVICE_TABLE(of, bcm6328_leds_of_match);
 
 static struct platform_driver bcm6328_leds_driver = {
         .probe = bcm6328_leds_probe,
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index 21f96930b3be..7ea3526702e0 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -226,6 +226,7 @@ static const struct of_device_id bcm6358_leds_of_match[] = {
         { .compatible = "brcm,bcm6358-leds", },
         { },
 };
+MODULE_DEVICE_TABLE(of, bcm6358_leds_of_match);
 
 static struct platform_driver bcm6358_leds_driver = {
         .probe = bcm6358_leds_probe,
diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c
index 2ae8c4d17ff8..feca07be85f5 100644
--- a/drivers/leds/leds-ktd2692.c
+++ b/drivers/leds/leds-ktd2692.c
@@ -426,6 +426,7 @@ static const struct of_device_id ktd2692_match[] = {
         { .compatible = "kinetic,ktd2692", },
         { /* sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, ktd2692_match);
 
 static struct platform_driver ktd2692_driver = {
         .driver = {
diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c
index df348a06d8c7..afbb1409b2e2 100644
--- a/drivers/leds/leds-max77693.c
+++ b/drivers/leds/leds-max77693.c
@@ -1080,6 +1080,7 @@ static const struct of_device_id max77693_led_dt_match[] = {
         { .compatible = "maxim,max77693-led" },
         {},
 };
+MODULE_DEVICE_TABLE(of, max77693_led_dt_match);
 
 static struct platform_driver max77693_led_driver = {
         .probe          = max77693_led_probe,
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index b33514d9f427..a95a61220169 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -337,6 +337,7 @@ static const struct of_device_id of_ns2_leds_match[] = {
         { .compatible = "lacie,ns2-leds", },
         {},
 };
+MODULE_DEVICE_TABLE(of, of_ns2_leds_match);
 #endif /* CONFIG_OF_GPIO */
 
 struct ns2_led_priv {
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 4b54128bc78e..a726f01e3b02 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -138,7 +138,7 @@ static void asic3_irq_flip_edge(struct asic3 *asic,
         spin_unlock_irqrestore(&asic->lock, flags);
 }
 
-static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void asic3_irq_demux(struct irq_desc *desc)
 {
         struct asic3 *asic = irq_desc_get_handler_data(desc);
         struct irq_data *data = irq_desc_get_irq_data(desc);
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index a76eb6ef47a0..b279205659a4 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -205,7 +205,7 @@ static void pcap_isr_work(struct work_struct *work)
         } while (gpio_get_value(pdata->gpio));
 }
 
-static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void pcap_irq_handler(struct irq_desc *desc)
 {
         struct pcap_chip *pcap = irq_desc_get_handler_data(desc);
 
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index 9131cdcdc64a..6ccaf90d98fd 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -98,7 +98,7 @@ static struct irq_chip egpio_muxed_chip = {
         .irq_unmask     = egpio_unmask,
 };
 
-static void egpio_handler(unsigned int irq, struct irq_desc *desc)
+static void egpio_handler(struct irq_desc *desc)
 {
         struct egpio_info *ei = irq_desc_get_handler_data(desc);
         int irqpin;
diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index 5bb49f08955d..798e44306382 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -65,7 +65,7 @@ struct jz4740_adc {
         spinlock_t lock;
 };
 
-static void jz4740_adc_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void jz4740_adc_irq_demux(struct irq_desc *desc)
 {
         struct irq_chip_generic *gc = irq_desc_get_handler_data(desc);
         uint8_t status;
diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index 59502d02cd15..1b7ec0870c2a 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -156,7 +156,7 @@ static int pm8xxx_irq_master_handler(struct pm_irq_chip *chip, int master)
         return ret;
 }
 
-static void pm8xxx_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void pm8xxx_irq_handler(struct irq_desc *desc)
 {
         struct pm_irq_chip *chip = irq_desc_get_handler_data(desc);
         struct irq_chip *irq_chip = irq_desc_get_chip(desc);
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index 16fc1adc4fa3..94bd89cb1f06 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -185,7 +185,7 @@ static struct mfd_cell t7l66xb_cells[] = {
 /*--------------------------------------------------------------------------*/
 
 /* Handle the T7L66XB interrupt mux */
-static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc)
+static void t7l66xb_irq(struct irq_desc *desc)
 {
         struct t7l66xb *t7l66xb = irq_desc_get_handler_data(desc);
         unsigned int isr;
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 775b9aca871a..8c84a513016b 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -522,8 +522,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
 
 /*--------------------------------------------------------------------------*/
 
-static void
-tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
+static void tc6393xb_irq(struct irq_desc *desc)
 {
         struct tc6393xb *tc6393xb = irq_desc_get_handler_data(desc);
         unsigned int isr;
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index 9a2302129711..f691d7ecad52 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -282,7 +282,7 @@ void ucb1x00_adc_disable(struct ucb1x00 *ucb)
  * SIBCLK to talk to the chip.  We leave the clock running until
  * we have finished processing all interrupts from the chip.
  */
-static void ucb1x00_irq(unsigned int __irq, struct irq_desc *desc)
+static void ucb1x00_irq(struct irq_desc *desc)
 {
         struct ucb1x00 *ucb = irq_desc_get_handler_data(desc);
         unsigned int isr, i;
diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index 6f484dfe78f9..6982f603fadc 100644
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -1,4 +1,4 @@
-ccflags-y := -Werror
+ccflags-y := -Werror -Wno-unused-const-variable
 
 cxl-y                           += main.o file.o irq.o fault.o native.o
 cxl-y                           += context.o sysfs.o debugfs.o pci.o trace.o
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 02c85160bfe9..a5e977192b61 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1249,8 +1249,6 @@ static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id)
         int slice;
         int rc;
 
-        pci_dev_get(dev);
-
         if (cxl_verbose)
                 dump_cxl_config_space(dev);
 
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 6dd16a6d153f..94b520896b18 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -48,6 +48,12 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
 
         phb = pci_bus_to_host(dev->bus);
         afu = (struct cxl_afu *)phb->private_data;
+
+        if (!cxl_adapter_link_ok(afu->adapter)) {
+                dev_warn(&dev->dev, "%s: Device link is down, refusing to enable AFU\n", __func__);
+                return false;
+        }
+
         set_dma_ops(&dev->dev, &dma_direct_ops);
         set_dma_offset(&dev->dev, PAGE_OFFSET);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 4402a1e48c9b..4c7de8c44659 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -1047,13 +1047,15 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
 
         /* If we used up all the quota - we're probably not done yet... */
         if (done == budget) {
-                int cpu_curr;
                 const struct cpumask *aff;
+                struct irq_data *idata;
+                int cpu_curr;
 
                 INC_PERF_COUNTER(priv->pstats.napi_quota);
 
                 cpu_curr = smp_processor_id();
-                aff = irq_desc_get_irq_data(cq->irq_desc)->affinity;
+                idata = irq_desc_get_irq_data(cq->irq_desc);
+                aff = irq_data_get_affinity_mask(idata);
 
                 if (likely(cpumask_test_cpu(cpu_curr, aff)))
                         return budget;
diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c
index 59ad54a63d9f..cb477518dd0e 100644
--- a/drivers/nvdimm/btt_devs.c
+++ b/drivers/nvdimm/btt_devs.c
@@ -128,13 +128,13 @@ static ssize_t namespace_store(struct device *dev,
         struct nd_btt *nd_btt = to_nd_btt(dev);
         ssize_t rc;
 
-        nvdimm_bus_lock(dev);
         device_lock(dev);
+        nvdimm_bus_lock(dev);
         rc = nd_namespace_store(dev, &nd_btt->ndns, buf, len);
         dev_dbg(dev, "%s: result: %zd wrote: %s%s", __func__,
                         rc, buf, buf[len - 1] == '\n' ? "" : "\n");
-        device_unlock(dev);
         nvdimm_bus_unlock(dev);
+        device_unlock(dev);
 
         return rc;
 }
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 3fd7d0d81a47..71805a1aa0f3 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -148,13 +148,13 @@ static ssize_t namespace_store(struct device *dev,
         struct nd_pfn *nd_pfn = to_nd_pfn(dev);
         ssize_t rc;
 
-        nvdimm_bus_lock(dev);
         device_lock(dev);
+        nvdimm_bus_lock(dev);
         rc = nd_namespace_store(dev, &nd_pfn->ndns, buf, len);
         dev_dbg(dev, "%s: result: %zd wrote: %s%s", __func__,
                         rc, buf, buf[len - 1] == '\n' ? "" : "\n");
-        device_unlock(dev);
         nvdimm_bus_unlock(dev);
+        device_unlock(dev);
 
         return rc;
 }
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index b9525385c0dc..0ba6a978f227 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -92,6 +92,8 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
         struct pmem_device *pmem = bdev->bd_disk->private_data;
 
         pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
+        if (rw & WRITE)
+                wmb_pmem();
         page_endio(page, rw & WRITE, 0);
 
         return 0;
diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c
index 81253e70b1c5..0aa81bd3de12 100644
--- a/drivers/pci/host/pci-keystone.c
+++ b/drivers/pci/host/pci-keystone.c
@@ -110,7 +110,7 @@ static int ks_pcie_establish_link(struct keystone_pcie *ks_pcie)
         return -EINVAL;
 }
 
-static void ks_pcie_msi_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void ks_pcie_msi_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct keystone_pcie *ks_pcie = irq_desc_get_handler_data(desc);
@@ -138,8 +138,7 @@ static void ks_pcie_msi_irq_handler(unsigned int __irq, struct irq_desc *desc)
  * Traverse through pending legacy interrupts and invoke handler for each. Also
  * takes care of interrupt controller level mask/ack operation.
  */
-static void ks_pcie_legacy_irq_handler(unsigned int __irq,
-                                       struct irq_desc *desc)
+static void ks_pcie_legacy_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct keystone_pcie *ks_pcie = irq_desc_get_handler_data(desc);
diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c
index 996327cfa1e1..e491681daf22 100644
--- a/drivers/pci/host/pci-xgene-msi.c
+++ b/drivers/pci/host/pci-xgene-msi.c
@@ -295,7 +295,7 @@ static int xgene_msi_init_allocator(struct xgene_msi *xgene_msi)
         return 0;
 }
 
-static void xgene_msi_isr(unsigned int irq, struct irq_desc *desc)
+static void xgene_msi_isr(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct xgene_msi_group *msi_groups;
diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
index 7d9482bf8252..1ca783098e47 100644
--- a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
@@ -143,7 +143,7 @@ static inline bool cygnus_get_bit(struct cygnus_gpio *chip, unsigned int reg,
         return !!(readl(chip->base + offset) & BIT(shift));
 }
 
-static void cygnus_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void cygnus_gpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct cygnus_gpio *chip = to_cygnus_gpio(gc);
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 69723e07036b..9638a00c67c2 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -349,6 +349,9 @@ static bool pinctrl_ready_for_gpio_range(unsigned gpio)
         struct pinctrl_gpio_range *range = NULL;
         struct gpio_chip *chip = gpio_to_chip(gpio);
 
+        if (WARN(!chip, "no gpio_chip for gpio%i?", gpio))
+                return false;
+
         mutex_lock(&pinctrldev_list_mutex);
 
         /* Loop over the pin controllers */
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index dac4865f3203..f79ea430f651 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -425,7 +425,7 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
         }
 }
 
-static void byt_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void byt_gpio_irq_handler(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct byt_gpio *vg = to_byt_gpio(irq_desc_get_handler_data(desc));
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 2d5d3ddc36e5..270c127e03ea 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1414,7 +1414,7 @@ static struct irq_chip chv_gpio_irqchip = {
         .flags = IRQCHIP_SKIP_SET_WAKE,
 };
 
-static void chv_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void chv_gpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(gc);
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index bb377c110541..54848b8decef 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -836,7 +836,7 @@ static void intel_gpio_community_irq_handler(struct gpio_chip *gc,
         }
 }
 
-static void intel_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void intel_gpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct intel_pinctrl *pctrl = gpiochip_to_pinctrl(gc);
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 7726c6caaf83..1b22f96ba839 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1190,7 +1190,7 @@ mtk_eint_debounce_process(struct mtk_pinctrl *pctl, int index)
         }
 }
 
-static void mtk_eint_irq_handler(unsigned irq, struct irq_desc *desc)
+static void mtk_eint_irq_handler(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct mtk_pinctrl *pctl = irq_desc_get_handler_data(desc);
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 352ede13a9e9..96cf03908e93 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -860,7 +860,7 @@ static void __nmk_gpio_irq_handler(struct irq_desc *desc, u32 status)
         chained_irq_exit(host_chip, desc);
 }
 
-static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void nmk_gpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *chip = irq_desc_get_handler_data(desc);
         struct nmk_gpio_chip *nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
@@ -873,7 +873,7 @@ static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
         __nmk_gpio_irq_handler(desc, status);
 }
 
-static void nmk_gpio_latent_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void nmk_gpio_latent_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *chip = irq_desc_get_handler_data(desc);
         struct nmk_gpio_chip *nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index a5976ebc4482..f6be68518c87 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -530,8 +530,7 @@ static inline void preflow_handler(struct irq_desc *desc)
 static inline void preflow_handler(struct irq_desc *desc) { }
 #endif
 
-static void adi_gpio_handle_pint_irq(unsigned int inta_irq,
-                        struct irq_desc *desc)
+static void adi_gpio_handle_pint_irq(struct irq_desc *desc)
 {
         u32 request;
         u32 level_mask, hwirq;
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 5e86bb8ca80e..3318f1d6193c 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -492,15 +492,15 @@ static struct irq_chip amd_gpio_irqchip = {
         .irq_set_type = amd_gpio_irq_set_type,
 };
 
-static void amd_gpio_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void amd_gpio_irq_handler(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         u32 i;
         u32 off;
         u32 reg;
         u32 pin_reg;
         u64 reg64;
         int handled = 0;
+        unsigned int irq;
         unsigned long flags;
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -541,7 +541,7 @@ static void amd_gpio_irq_handler(unsigned int __irq, struct irq_desc *desc)
         }
 
         if (handled == 0)
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
 
         spin_lock_irqsave(&gpio_dev->lock, flags);
         reg = readl(gpio_dev->base + WAKE_INT_MASTER_REG);
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index bae0012ee356..b0fde0f385e6 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1585,7 +1585,7 @@ static struct irq_chip gpio_irqchip = {
         .irq_set_wake   = gpio_irq_set_wake,
 };
 
-static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct gpio_chip *gpio_chip = irq_desc_get_handler_data(desc);
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index 3731cc67a88b..9c9b88934bcc 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -519,7 +519,7 @@ static struct irq_chip u300_gpio_irqchip = {
         .irq_set_type           = u300_gpio_irq_type,
 };
 
-static void u300_gpio_irq_handler(unsigned __irq, struct irq_desc *desc)
+static void u300_gpio_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct irq_chip *parent_chip = irq_desc_get_chip(desc);
diff --git a/drivers/pinctrl/pinctrl-digicolor.c b/drivers/pinctrl/pinctrl-digicolor.c
index 461fffc4c62a..11f8b835d3b6 100644
--- a/drivers/pinctrl/pinctrl-digicolor.c
+++ b/drivers/pinctrl/pinctrl-digicolor.c
@@ -337,9 +337,9 @@ static int dc_pinctrl_probe(struct platform_device *pdev)
         pmap->dev = &pdev->dev;
 
         pmap->pctl = pinctrl_register(pctl_desc, &pdev->dev, pmap);
-        if (!pmap->pctl) {
+        if (IS_ERR(pmap->pctl)) {
                 dev_err(&pdev->dev, "pinctrl driver registration failed\n");
-                return -EINVAL;
+                return PTR_ERR(pmap->pctl);
         }
 
         ret = dc_gpiochip_add(pmap, pdev->dev.of_node);
diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c
index 3dc2ae15f3a1..952b1c623887 100644
--- a/drivers/pinctrl/pinctrl-pistachio.c
+++ b/drivers/pinctrl/pinctrl-pistachio.c
@@ -1303,20 +1303,18 @@ static int pistachio_gpio_irq_set_type(struct irq_data *data, unsigned int type)
         }
 
         if (type & IRQ_TYPE_LEVEL_MASK)
-                __irq_set_handler_locked(data->irq, handle_level_irq);
+                irq_set_handler_locked(data, handle_level_irq);
         else
-                __irq_set_handler_locked(data->irq, handle_edge_irq);
+                irq_set_handler_locked(data, handle_edge_irq);
 
         return 0;
 }
 
-static void pistachio_gpio_irq_handler(unsigned int __irq,
-                                       struct irq_desc *desc)
+static void pistachio_gpio_irq_handler(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct pistachio_gpio_bank *bank = gc_to_bank(gc);
-        struct irq_chip *chip = irq_get_chip(irq);
+        struct irq_chip *chip = irq_desc_get_chip(desc);
         unsigned long pending;
         unsigned int pin;
 
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index c5246c05f70c..88bb707e107a 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1475,7 +1475,7 @@ static const struct gpio_chip rockchip_gpiolib_chip = {
  * Interrupt handling
  */
 
-static void rockchip_irq_demux(unsigned int __irq, struct irq_desc *desc)
+static void rockchip_irq_demux(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index bf548c2a7a9d..ef04b962c3d5 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1679,7 +1679,7 @@ static irqreturn_t pcs_irq_handler(int irq, void *d)
  * Use this if you have a separate interrupt for each
  * pinctrl-single instance.
  */
-static void pcs_irq_chain_handler(unsigned int irq, struct irq_desc *desc)
+static void pcs_irq_chain_handler(struct irq_desc *desc)
 {
         struct pcs_soc_data *pcs_soc = irq_desc_get_handler_data(desc);
         struct irq_chip *chip;
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index f8338d2e6b6b..389526e704fb 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1460,7 +1460,7 @@ static void __gpio_irq_handler(struct st_gpio_bank *bank)
         }
 }
 
-static void st_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void st_gpio_irq_handler(struct irq_desc *desc)
 {
         /* interrupt dedicated per bank */
         struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -1472,7 +1472,7 @@ static void st_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
         chained_irq_exit(chip, desc);
 }
 
-static void st_gpio_irqmux_handler(unsigned irq, struct irq_desc *desc)
+static void st_gpio_irqmux_handler(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct st_pinctrl *info = irq_desc_get_handler_data(desc);
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 67e08cb315c4..29984b36926a 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -313,8 +313,7 @@ static int pinmux_func_name_to_selector(struct pinctrl_dev *pctldev,
 
         /* See if this pctldev has this function */
         while (selector < nfuncs) {
-                const char *fname = ops->get_function_name(pctldev,
-                                                           selector);
+                const char *fname = ops->get_function_name(pctldev, selector);
 
                 if (!strcmp(function, fname))
                         return selector;
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 492cdd51dc5c..a0c7407c1cac 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -765,9 +765,8 @@ static struct irq_chip msm_gpio_irq_chip = {
         .irq_set_wake   = msm_gpio_irq_set_wake,
 };
 
-static void msm_gpio_irq_handler(unsigned int __irq, struct irq_desc *desc)
+static void msm_gpio_irq_handler(struct irq_desc *desc)
 {
-        unsigned int irq = irq_desc_get_irq(desc);
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         const struct msm_pingroup *g;
         struct msm_pinctrl *pctrl = to_msm_pinctrl(gc);
@@ -795,7 +794,7 @@ static void msm_gpio_irq_handler(unsigned int __irq, struct irq_desc *desc)
 
         /* No interrupts were flagged */
         if (handled == 0)
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
 
         chained_irq_exit(chip, desc);
 }
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
index c978b311031b..e1a3721bc8e5 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
@@ -723,9 +723,9 @@ static int pm8xxx_gpio_probe(struct platform_device *pdev)
 #endif
 
         pctrl->pctrl = pinctrl_register(&pctrl->desc, &pdev->dev, pctrl);
-        if (!pctrl->pctrl) {
+        if (IS_ERR(pctrl->pctrl)) {
                 dev_err(&pdev->dev, "couldn't register pm8xxx gpio driver\n");
-                return -ENODEV;
+                return PTR_ERR(pctrl->pctrl);
         }
 
         pctrl->chip = pm8xxx_gpio_template;
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
index 2d1b69f171be..6652b8d7f707 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
@@ -814,9 +814,9 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
 #endif
 
         pctrl->pctrl = pinctrl_register(&pctrl->desc, &pdev->dev, pctrl);
-        if (!pctrl->pctrl) {
+        if (IS_ERR(pctrl->pctrl)) {
                 dev_err(&pdev->dev, "couldn't register pm8xxx mpp driver\n");
-                return -ENODEV;
+                return PTR_ERR(pctrl->pctrl);
         }
 
         pctrl->chip = pm8xxx_mpp_template;
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 5f45caaef46d..71ccf6a90b22 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -419,7 +419,7 @@ static const struct of_device_id exynos_wkup_irq_ids[] = {
 };
 
 /* interrupt handler for wakeup interrupts 0..15 */
-static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
+static void exynos_irq_eint0_15(struct irq_desc *desc)
 {
         struct exynos_weint_data *eintd = irq_desc_get_handler_data(desc);
         struct samsung_pin_bank *bank = eintd->bank;
@@ -451,7 +451,7 @@ static inline void exynos_irq_demux_eint(unsigned long pend,
 }
 
 /* interrupt handler for wakeup interrupt 16 */
-static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
+static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct exynos_muxed_weint_data *eintd = irq_desc_get_handler_data(desc);
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
index 019844d479bb..3d92f827da7a 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -240,7 +240,7 @@ static struct irq_chip s3c2410_eint0_3_chip = {
         .irq_set_type   = s3c24xx_eint_type,
 };
 
-static void s3c2410_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
+static void s3c2410_demux_eint0_3(struct irq_desc *desc)
 {
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
@@ -295,7 +295,7 @@ static struct irq_chip s3c2412_eint0_3_chip = {
         .irq_set_type   = s3c24xx_eint_type,
 };
 
-static void s3c2412_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
+static void s3c2412_demux_eint0_3(struct irq_desc *desc)
 {
         struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
         struct irq_data *data = irq_desc_get_irq_data(desc);
@@ -361,7 +361,7 @@ static inline void s3c24xx_demux_eint(struct irq_desc *desc,
                                       u32 offset, u32 range)
 {
         struct s3c24xx_eint_data *data = irq_desc_get_handler_data(desc);
-        struct irq_chip *chip = irq_desc_get_irq_chip(desc);
+        struct irq_chip *chip = irq_desc_get_chip(desc);
         struct samsung_pinctrl_drv_data *d = data->drvdata;
         unsigned int pend, mask;
 
@@ -388,12 +388,12 @@ static inline void s3c24xx_demux_eint(struct irq_desc *desc,
         chained_irq_exit(chip, desc);
 }
 
-static void s3c24xx_demux_eint4_7(unsigned int irq, struct irq_desc *desc)
+static void s3c24xx_demux_eint4_7(struct irq_desc *desc)
 {
         s3c24xx_demux_eint(desc, 0, 0xf0);
 }
 
-static void s3c24xx_demux_eint8_23(unsigned int irq, struct irq_desc *desc)
+static void s3c24xx_demux_eint8_23(struct irq_desc *desc)
 {
         s3c24xx_demux_eint(desc, 8, 0xffff00);
 }
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index f5ea40a69711..43407ab248f5 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -407,7 +407,7 @@ static const struct irq_domain_ops s3c64xx_gpio_irqd_ops = {
         .xlate  = irq_domain_xlate_twocell,
 };
 
-static void s3c64xx_eint_gpio_irq(unsigned int irq, struct irq_desc *desc)
+static void s3c64xx_eint_gpio_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct s3c64xx_eint_gpio_data *data = irq_desc_get_handler_data(desc);
@@ -631,22 +631,22 @@ static inline void s3c64xx_irq_demux_eint(struct irq_desc *desc, u32 range)
         chained_irq_exit(chip, desc);
 }
 
-static void s3c64xx_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
+static void s3c64xx_demux_eint0_3(struct irq_desc *desc)
 {
         s3c64xx_irq_demux_eint(desc, 0xf);
 }
 
-static void s3c64xx_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
+static void s3c64xx_demux_eint4_11(struct irq_desc *desc)
 {
         s3c64xx_irq_demux_eint(desc, 0xff0);
 }
 
-static void s3c64xx_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
+static void s3c64xx_demux_eint12_19(struct irq_desc *desc)
 {
         s3c64xx_irq_demux_eint(desc, 0xff000);
 }
 
-static void s3c64xx_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
+static void s3c64xx_demux_eint20_27(struct irq_desc *desc)
 {
         s3c64xx_irq_demux_eint(desc, 0xff00000);
 }
diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c
index 9df0c5f25824..0d24d9e4b70c 100644
--- a/drivers/pinctrl/sirf/pinctrl-atlas7.c
+++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c
@@ -4489,7 +4489,7 @@ static struct irq_chip atlas7_gpio_irq_chip = {
         .irq_set_type = atlas7_gpio_irq_type,
 };
 
-static void atlas7_gpio_handle_irq(unsigned int __irq, struct irq_desc *desc)
+static void atlas7_gpio_handle_irq(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct atlas7_gpio_chip *a7gc = to_atlas7_gpio(gc);
@@ -4512,7 +4512,7 @@ static void atlas7_gpio_handle_irq(unsigned int __irq, struct irq_desc *desc)
         if (!status) {
                 pr_warn("%s: gpio [%s] status %#x no interrupt is flaged\n",
                         __func__, gc->label, status);
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
                 return;
         }
 
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index f8bd9fb52033..2a8d69725de8 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -545,7 +545,7 @@ static struct irq_chip sirfsoc_irq_chip = {
         .irq_set_type = sirfsoc_gpio_irq_type,
 };
 
-static void sirfsoc_gpio_handle_irq(unsigned int __irq, struct irq_desc *desc)
+static void sirfsoc_gpio_handle_irq(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -570,7 +570,7 @@ static void sirfsoc_gpio_handle_irq(unsigned int __irq, struct irq_desc *desc)
                 printk(KERN_WARNING
                         "%s: gpio id %d status %#x no interrupt is flagged\n",
                         __func__, bank->id, status);
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
                 return;
         }
 
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index ae8f29fb5536..1f0af250dbb5 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -356,7 +356,7 @@ static struct irq_chip plgpio_irqchip = {
         .irq_set_type   = plgpio_irq_set_type,
 };
 
-static void plgpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void plgpio_irq_handler(struct irq_desc *desc)
 {
         struct gpio_chip *gc = irq_desc_get_handler_data(desc);
         struct plgpio *plgpio = container_of(gc, struct plgpio, chip);
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index fb4669c0ce0e..38e0c7bdd2ac 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -617,13 +617,11 @@ static int sunxi_pinctrl_irq_set_type(struct irq_data *d, unsigned int type)
         spin_lock_irqsave(&pctl->lock, flags);
 
         if (type & IRQ_TYPE_LEVEL_MASK)
-                __irq_set_chip_handler_name_locked(d->irq,
-                                                   &sunxi_pinctrl_level_irq_chip,
-                                                   handle_fasteoi_irq, NULL);
+                irq_set_chip_handler_name_locked(d, &sunxi_pinctrl_level_irq_chip,
+                                                 handle_fasteoi_irq, NULL);
         else
-                __irq_set_chip_handler_name_locked(d->irq,
-                                                   &sunxi_pinctrl_edge_irq_chip,
-                                                   handle_edge_irq, NULL);
+                irq_set_chip_handler_name_locked(d, &sunxi_pinctrl_edge_irq_chip,
+                                                 handle_edge_irq, NULL);
 
         regval = readl(pctl->membase + reg);
         regval &= ~(IRQ_CFG_IRQ_MASK << index);
@@ -742,7 +740,7 @@ static struct irq_domain_ops sunxi_pinctrl_irq_domain_ops = {
         .xlate          = sunxi_pinctrl_irq_of_xlate,
 };
 
-static void sunxi_pinctrl_irq_handler(unsigned __irq, struct irq_desc *desc)
+static void sunxi_pinctrl_irq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index abdaed34c728..131fee2b093e 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -128,6 +128,24 @@ static const struct dmi_system_id asus_quirks[] = {
         },
         {
                 .callback = dmi_matched,
+                .ident = "ASUSTeK COMPUTER INC. X456UA",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"),
+                },
+                .driver_data = &quirk_asus_wapf4,
+        },
+        {
+                .callback = dmi_matched,
+                .ident = "ASUSTeK COMPUTER INC. X456UF",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"),
+                },
+                .driver_data = &quirk_asus_wapf4,
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "ASUSTeK COMPUTER INC. X501U",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 06697315a088..fb4dd7b3ee71 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -54,8 +54,9 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 #define HPWMI_HARDWARE_QUERY 0x4
 #define HPWMI_WIRELESS_QUERY 0x5
 #define HPWMI_BIOS_QUERY 0x9
+#define HPWMI_FEATURE_QUERY 0xb
 #define HPWMI_HOTKEY_QUERY 0xc
-#define HPWMI_FEATURE_QUERY 0xd
+#define HPWMI_FEATURE2_QUERY 0xd
 #define HPWMI_WIRELESS2_QUERY 0x1b
 #define HPWMI_POSTCODEERROR_QUERY 0x2a
 
@@ -295,25 +296,33 @@ static int hp_wmi_tablet_state(void)
         return (state & 0x4) ? 1 : 0;
 }
 
-static int __init hp_wmi_bios_2009_later(void)
+static int __init hp_wmi_bios_2008_later(void)
 {
         int state = 0;
         int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state,
                                        sizeof(state), sizeof(state));
-        if (ret)
-                return ret;
+        if (!ret)
+                return 1;
 
-        return (state & 0x10) ? 1 : 0;
+        return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
 }
 
-static int hp_wmi_enable_hotkeys(void)
+static int __init hp_wmi_bios_2009_later(void)
 {
-        int ret;
-        int query = 0x6e;
+        int state = 0;
+        int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &state,
+                                       sizeof(state), sizeof(state));
+        if (!ret)
+                return 1;
 
-        ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &query, sizeof(query),
-                                   0);
+        return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
+}
 
+static int __init hp_wmi_enable_hotkeys(void)
+{
+        int value = 0x6e;
+        int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &value,
+                                       sizeof(value), 0);
         if (ret)
                 return -EINVAL;
         return 0;
@@ -663,7 +672,7 @@ static int __init hp_wmi_input_setup(void)
                             hp_wmi_tablet_state());
         input_sync(hp_wmi_input_dev);
 
-        if (hp_wmi_bios_2009_later() == 4)
+        if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
                 hp_wmi_enable_hotkeys();
 
         status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 6740c513919c..f2372f400ddb 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -938,7 +938,7 @@ static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
         else if (result == TOS_NOT_SUPPORTED)
                 return -ENODEV;
 
-        return result = TOS_SUCCESS ? 0 : -EIO;
+        return result == TOS_SUCCESS ? 0 : -EIO;
 }
 
 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
@@ -2398,11 +2398,9 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
         if (error)
                 return error;
 
-        error = toshiba_hotkey_event_type_get(dev, &events_type);
-        if (error) {
-                pr_err("Unable to query Hotkey Event Type\n");
-                return error;
-        }
+        if (toshiba_hotkey_event_type_get(dev, &events_type))
+                pr_notice("Unable to query Hotkey Event Type\n");
+
         dev->hotkey_event_type = events_type;
 
         dev->hotkey_dev = input_allocate_device();
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index aac47573f9ed..eb391a281833 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -194,34 +194,6 @@ static bool wmi_parse_guid(const u8 *src, u8 *dest)
         return true;
 }
 
-/*
- * Convert a raw GUID to the ACII string representation
- */
-static int wmi_gtoa(const char *in, char *out)
-{
-        int i;
-
-        for (i = 3; i >= 0; i--)
-                out += sprintf(out, "%02X", in[i] & 0xFF);
-
-        out += sprintf(out, "-");
-        out += sprintf(out, "%02X", in[5] & 0xFF);
-        out += sprintf(out, "%02X", in[4] & 0xFF);
-        out += sprintf(out, "-");
-        out += sprintf(out, "%02X", in[7] & 0xFF);
-        out += sprintf(out, "%02X", in[6] & 0xFF);
-        out += sprintf(out, "-");
-        out += sprintf(out, "%02X", in[8] & 0xFF);
-        out += sprintf(out, "%02X", in[9] & 0xFF);
-        out += sprintf(out, "-");
-
-        for (i = 10; i <= 15; i++)
-                out += sprintf(out, "%02X", in[i] & 0xFF);
-
-        *out = '\0';
-        return 0;
-}
-
 static bool find_guid(const char *guid_string, struct wmi_block **out)
 {
         char tmp[16], guid_input[16];
@@ -457,11 +429,7 @@ EXPORT_SYMBOL_GPL(wmi_set_block);
 
 static void wmi_dump_wdg(const struct guid_block *g)
 {
-        char guid_string[37];
-
-        wmi_gtoa(g->guid, guid_string);
-
-        pr_info("%s:\n", guid_string);
+        pr_info("%pUL:\n", g->guid);
         pr_info("\tobject_id: %c%c\n", g->object_id[0], g->object_id[1]);
         pr_info("\tnotify_id: %02X\n", g->notify_id);
         pr_info("\treserved: %02X\n", g->reserved);
@@ -661,7 +629,6 @@ EXPORT_SYMBOL_GPL(wmi_has_guid);
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
                              char *buf)
 {
-        char guid_string[37];
         struct wmi_block *wblock;
 
         wblock = dev_get_drvdata(dev);
@@ -670,9 +637,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
                 return strlen(buf);
         }
 
-        wmi_gtoa(wblock->gblock.guid, guid_string);
-
-        return sprintf(buf, "wmi:%s\n", guid_string);
+        return sprintf(buf, "wmi:%pUL\n", wblock->gblock.guid);
 }
 static DEVICE_ATTR_RO(modalias);
 
@@ -695,7 +660,7 @@ static int wmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
         if (!wblock)
                 return -ENOMEM;
 
-        wmi_gtoa(wblock->gblock.guid, guid_string);
+        sprintf(guid_string, "%pUL", wblock->gblock.guid);
 
         strcpy(&env->buf[env->buflen - 1], "wmi:");
         memcpy(&env->buf[env->buflen - 1 + 4], guid_string, 36);
@@ -721,12 +686,9 @@ static struct class wmi_class = {
 static int wmi_create_device(const struct guid_block *gblock,
                              struct wmi_block *wblock, acpi_handle handle)
 {
-        char guid_string[37];
-
         wblock->dev.class = &wmi_class;
 
-        wmi_gtoa(gblock->guid, guid_string);
-        dev_set_name(&wblock->dev, "%s", guid_string);
+        dev_set_name(&wblock->dev, "%pUL", gblock->guid);
 
         dev_set_drvdata(&wblock->dev, wblock);
 
@@ -877,7 +839,6 @@ static void acpi_wmi_notify(struct acpi_device *device, u32 event)
         struct guid_block *block;
         struct wmi_block *wblock;
         struct list_head *p;
-        char guid_string[37];
 
         list_for_each(p, &wmi_block_list) {
                 wblock = list_entry(p, struct wmi_block, list);
@@ -888,8 +849,8 @@ static void acpi_wmi_notify(struct acpi_device *device, u32 event)
                         if (wblock->handler)
                                 wblock->handler(event, wblock->handler_data);
                         if (debug_event) {
-                                wmi_gtoa(wblock->gblock.guid, guid_string);
-                                pr_info("DEBUG Event GUID: %s\n", guid_string);
+                                pr_info("DEBUG Event GUID: %pUL\n",
+                                        wblock->gblock.guid);
                         }
 
                         acpi_bus_generate_netlink_event(
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index f4f2c1f76c32..74f2d3ff1d7c 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -91,7 +91,7 @@
 #define TWL4030_MSTATEC_COMPLETE1       0x0b
 #define TWL4030_MSTATEC_COMPLETE4       0x0e
 
-#if IS_ENABLED(CONFIG_TWL4030_MADC)
+#if IS_REACHABLE(CONFIG_TWL4030_MADC)
 /*
  * If AC (Accessory Charger) voltage exceeds 4.5V (MADC 11)
  * then AC is available.
@@ -1057,13 +1057,9 @@ static int twl4030_bci_probe(struct platform_device *pdev)
 
                 phynode = of_find_compatible_node(bci->dev->of_node->parent,
                                                   NULL, "ti,twl4030-usb");
-                if (phynode) {
+                if (phynode)
                         bci->transceiver = devm_usb_get_phy_by_node(
                                 bci->dev, phynode, &bci->usb_nb);
-                        if (IS_ERR(bci->transceiver) &&
-                            PTR_ERR(bci->transceiver) == -EPROBE_DEFER)
-                                return -EPROBE_DEFER;
-                }
         }
 
         /* Enable interrupts now. */
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index f8d8fdb26b72..e9fae30fafda 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -400,12 +400,16 @@ static bool virtio_ccw_kvm_notify(struct virtqueue *vq)
 static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev,
                                    struct ccw1 *ccw, int index)
 {
+        int ret;
+
         vcdev->config_block->index = index;
         ccw->cmd_code = CCW_CMD_READ_VQ_CONF;
         ccw->flags = 0;
         ccw->count = sizeof(struct vq_config_block);
         ccw->cda = (__u32)(unsigned long)(vcdev->config_block);
-        ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF);
+        ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF);
+        if (ret)
+                return ret;
         return vcdev->config_block->num;
 }
 
@@ -503,6 +507,10 @@ static struct virtqueue *virtio_ccw_setup_vq(struct virtio_device *vdev,
                 goto out_err;
         }
         info->num = virtio_ccw_read_vq_conf(vcdev, ccw, i);
+        if (info->num < 0) {
+                err = info->num;
+                goto out_err;
+        }
         size = PAGE_ALIGN(vring_size(info->num, KVM_VIRTIO_CCW_RING_ALIGN));
         info->queue = alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
         if (info->queue == NULL) {
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 043419dcee92..8e72bcbd3d6d 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -65,7 +65,7 @@ void intc_set_prio_level(unsigned int irq, unsigned int level)
         raw_spin_unlock_irqrestore(&intc_big_lock, flags);
 }
 
-static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc)
+static void intc_redirect_irq(struct irq_desc *desc)
 {
         generic_handle_irq((unsigned int)irq_desc_get_handler_data(desc));
 }
diff --git a/drivers/sh/intc/internals.h b/drivers/sh/intc/internals.h
index 7dff08e2a071..6ce7f0d26dcf 100644
--- a/drivers/sh/intc/internals.h
+++ b/drivers/sh/intc/internals.h
@@ -99,15 +99,7 @@ static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
  */
 static inline void activate_irq(int irq)
 {
-#ifdef CONFIG_ARM
-        /* ARM requires an extra step to clear IRQ_NOREQUEST, which it
-         * sets on behalf of every irq_chip.  Also sets IRQ_NOPROBE.
-         */
-        set_irq_flags(irq, IRQF_VALID);
-#else
-        /* same effect on other architectures */
-        irq_set_noprobe(irq);
-#endif
+        irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE);
 }
 
 static inline int intc_handle_int_cmp(const void *a, const void *b)
diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c
index bafc51c6f0ba..e7899624aa0b 100644
--- a/drivers/sh/intc/virq.c
+++ b/drivers/sh/intc/virq.c
@@ -109,7 +109,7 @@ static int add_virq_to_pirq(unsigned int irq, unsigned int virq)
         return 0;
 }
 
-static void intc_virq_handler(unsigned int __irq, struct irq_desc *desc)
+static void intc_virq_handler(struct irq_desc *desc)
 {
         unsigned int irq = irq_desc_get_irq(desc);
         struct irq_data *data = irq_desc_get_irq_data(desc);
@@ -127,7 +127,7 @@ static void intc_virq_handler(unsigned int __irq, struct irq_desc *desc)
                         handle = (unsigned long)irq_desc_get_handler_data(vdesc);
                         addr = INTC_REG(d, _INTC_ADDR_E(handle), 0);
                         if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0))
-                                generic_handle_irq_desc(entry->irq, vdesc);
+                                generic_handle_irq_desc(vdesc);
                 }
         }
 
diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c
index 6792aae9e2e5..052aecf29893 100644
--- a/drivers/soc/dove/pmu.c
+++ b/drivers/soc/dove/pmu.c
@@ -222,9 +222,9 @@ static void __pmu_domain_register(struct pmu_domain *domain,
 }
 
 /* PMU IRQ controller */
-static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void pmu_irq_handler(struct irq_desc *desc)
 {
-        struct pmu_data *pmu = irq_get_handler_data(irq);
+        struct pmu_data *pmu = irq_desc_get_handler_data(desc);
         struct irq_chip_generic *gc = pmu->irq_gc;
         struct irq_domain *domain = pmu->irq_domain;
         void __iomem *base = gc->reg_base;
@@ -232,7 +232,7 @@ static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc)
         u32 done = ~0;
 
         if (stat == 0) {
-                handle_bad_irq(irq, desc);
+                handle_bad_irq(desc);
                 return;
         }
 
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index bdfb3c84c3cb..4a3cf9ba152f 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -451,7 +451,7 @@ static void periph_interrupt(struct spmi_pmic_arb_dev *pa, u8 apid)
         }
 }
 
-static void pmic_arb_chained_irq(unsigned int irq, struct irq_desc *desc)
+static void pmic_arb_chained_irq(struct irq_desc *desc)
 {
         struct spmi_pmic_arb_dev *pa = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/staging/rdma/Kconfig b/drivers/staging/rdma/Kconfig
index cf5fe9bb87a1..d7f62359d743 100644
--- a/drivers/staging/rdma/Kconfig
+++ b/drivers/staging/rdma/Kconfig
@@ -24,6 +24,8 @@ if STAGING_RDMA
 
 source "drivers/staging/rdma/amso1100/Kconfig"
 
+source "drivers/staging/rdma/ehca/Kconfig"
+
 source "drivers/staging/rdma/hfi1/Kconfig"
 
 source "drivers/staging/rdma/ipath/Kconfig"
diff --git a/drivers/staging/rdma/Makefile b/drivers/staging/rdma/Makefile
index cbd915ac7f20..139d78ef2c24 100644
--- a/drivers/staging/rdma/Makefile
+++ b/drivers/staging/rdma/Makefile
@@ -1,4 +1,5 @@
 # Entries for RDMA_STAGING tree
 obj-$(CONFIG_INFINIBAND_AMSO1100)       += amso1100/
+obj-$(CONFIG_INFINIBAND_EHCA)   += ehca/
 obj-$(CONFIG_INFINIBAND_HFI1)   += hfi1/
 obj-$(CONFIG_INFINIBAND_IPATH)  += ipath/
diff --git a/drivers/infiniband/hw/ehca/Kconfig b/drivers/staging/rdma/ehca/Kconfig
index 59f807d8d58e..3fadd2ad6426 100644
--- a/drivers/infiniband/hw/ehca/Kconfig
+++ b/drivers/staging/rdma/ehca/Kconfig
@@ -2,7 +2,8 @@ config INFINIBAND_EHCA
         tristate "eHCA support"
         depends on IBMEBUS
         ---help---
-        This driver supports the IBM pSeries eHCA InfiniBand adapter.
+        This driver supports the deprecated IBM pSeries eHCA InfiniBand
+        adapter.
 
         To compile the driver as a module, choose M here. The module
         will be called ib_ehca.
diff --git a/drivers/infiniband/hw/ehca/Makefile b/drivers/staging/rdma/ehca/Makefile
index 74d284e46a40..74d284e46a40 100644
--- a/drivers/infiniband/hw/ehca/Makefile
+++ b/drivers/staging/rdma/ehca/Makefile
diff --git a/drivers/staging/rdma/ehca/TODO b/drivers/staging/rdma/ehca/TODO
new file mode 100644
index 000000000000..199a4a600142
--- /dev/null
+++ b/drivers/staging/rdma/ehca/TODO
@@ -0,0 +1,4 @@
+9/2015
+
+The ehca driver has been deprecated and moved to drivers/staging/rdma.
+It will be removed in the 4.6 merge window.
diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/staging/rdma/ehca/ehca_av.c
index 465926319f3d..465926319f3d 100644
--- a/drivers/infiniband/hw/ehca/ehca_av.c
+++ b/drivers/staging/rdma/ehca/ehca_av.c
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/staging/rdma/ehca/ehca_classes.h
index bd45e0f3923f..bd45e0f3923f 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/staging/rdma/ehca/ehca_classes.h
diff --git a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h b/drivers/staging/rdma/ehca/ehca_classes_pSeries.h
index 689c35786dd2..689c35786dd2 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h
+++ b/drivers/staging/rdma/ehca/ehca_classes_pSeries.h
diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/staging/rdma/ehca/ehca_cq.c
index 9b68b175069b..9b68b175069b 100644
--- a/drivers/infiniband/hw/ehca/ehca_cq.c
+++ b/drivers/staging/rdma/ehca/ehca_cq.c
diff --git a/drivers/infiniband/hw/ehca/ehca_eq.c b/drivers/staging/rdma/ehca/ehca_eq.c
index 90da6747d395..90da6747d395 100644
--- a/drivers/infiniband/hw/ehca/ehca_eq.c
+++ b/drivers/staging/rdma/ehca/ehca_eq.c
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/staging/rdma/ehca/ehca_hca.c
index e8b1bb65797a..e8b1bb65797a 100644
--- a/drivers/infiniband/hw/ehca/ehca_hca.c
+++ b/drivers/staging/rdma/ehca/ehca_hca.c
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/staging/rdma/ehca/ehca_irq.c
index 8615d7cf7e01..8615d7cf7e01 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/staging/rdma/ehca/ehca_irq.c
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.h b/drivers/staging/rdma/ehca/ehca_irq.h
index 5370199f08c7..5370199f08c7 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.h
+++ b/drivers/staging/rdma/ehca/ehca_irq.h
diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/staging/rdma/ehca/ehca_iverbs.h
index 80e6a3d5df3e..80e6a3d5df3e 100644
--- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
+++ b/drivers/staging/rdma/ehca/ehca_iverbs.h
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/staging/rdma/ehca/ehca_main.c
index 8246418cd4e0..8246418cd4e0 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/staging/rdma/ehca/ehca_main.c
diff --git a/drivers/infiniband/hw/ehca/ehca_mcast.c b/drivers/staging/rdma/ehca/ehca_mcast.c
index cec181532924..cec181532924 100644
--- a/drivers/infiniband/hw/ehca/ehca_mcast.c
+++ b/drivers/staging/rdma/ehca/ehca_mcast.c
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c
index f914b30999f8..f914b30999f8 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/staging/rdma/ehca/ehca_mrmw.c
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/staging/rdma/ehca/ehca_mrmw.h
index 50d8b51306dd..50d8b51306dd 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.h
+++ b/drivers/staging/rdma/ehca/ehca_mrmw.h
diff --git a/drivers/infiniband/hw/ehca/ehca_pd.c b/drivers/staging/rdma/ehca/ehca_pd.c
index 351577a6670a..351577a6670a 100644
--- a/drivers/infiniband/hw/ehca/ehca_pd.c
+++ b/drivers/staging/rdma/ehca/ehca_pd.c
diff --git a/drivers/infiniband/hw/ehca/ehca_qes.h b/drivers/staging/rdma/ehca/ehca_qes.h
index 90c4efa67586..90c4efa67586 100644
--- a/drivers/infiniband/hw/ehca/ehca_qes.h
+++ b/drivers/staging/rdma/ehca/ehca_qes.h
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/staging/rdma/ehca/ehca_qp.c
index 2e89356c46fa..2e89356c46fa 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/staging/rdma/ehca/ehca_qp.c
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/staging/rdma/ehca/ehca_reqs.c
index 47f94984353d..47f94984353d 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/staging/rdma/ehca/ehca_reqs.c
diff --git a/drivers/infiniband/hw/ehca/ehca_sqp.c b/drivers/staging/rdma/ehca/ehca_sqp.c
index 376b031c2c7f..376b031c2c7f 100644
--- a/drivers/infiniband/hw/ehca/ehca_sqp.c
+++ b/drivers/staging/rdma/ehca/ehca_sqp.c
diff --git a/drivers/infiniband/hw/ehca/ehca_tools.h b/drivers/staging/rdma/ehca/ehca_tools.h
index d280b12aae64..d280b12aae64 100644
--- a/drivers/infiniband/hw/ehca/ehca_tools.h
+++ b/drivers/staging/rdma/ehca/ehca_tools.h
diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/staging/rdma/ehca/ehca_uverbs.c
index 1a1d5d99fcf9..1a1d5d99fcf9 100644
--- a/drivers/infiniband/hw/ehca/ehca_uverbs.c
+++ b/drivers/staging/rdma/ehca/ehca_uverbs.c
diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/staging/rdma/ehca/hcp_if.c
index 89517ffb4389..89517ffb4389 100644
--- a/drivers/infiniband/hw/ehca/hcp_if.c
+++ b/drivers/staging/rdma/ehca/hcp_if.c
diff --git a/drivers/infiniband/hw/ehca/hcp_if.h b/drivers/staging/rdma/ehca/hcp_if.h
index a46e514c367b..a46e514c367b 100644
--- a/drivers/infiniband/hw/ehca/hcp_if.h
+++ b/drivers/staging/rdma/ehca/hcp_if.h
diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.c b/drivers/staging/rdma/ehca/hcp_phyp.c
index 077376ff3d28..077376ff3d28 100644
--- a/drivers/infiniband/hw/ehca/hcp_phyp.c
+++ b/drivers/staging/rdma/ehca/hcp_phyp.c
diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.h b/drivers/staging/rdma/ehca/hcp_phyp.h
index d1b029910249..d1b029910249 100644
--- a/drivers/infiniband/hw/ehca/hcp_phyp.h
+++ b/drivers/staging/rdma/ehca/hcp_phyp.h
diff --git a/drivers/infiniband/hw/ehca/hipz_fns.h b/drivers/staging/rdma/ehca/hipz_fns.h
index 9dac93d02140..9dac93d02140 100644
--- a/drivers/infiniband/hw/ehca/hipz_fns.h
+++ b/drivers/staging/rdma/ehca/hipz_fns.h
diff --git a/drivers/infiniband/hw/ehca/hipz_fns_core.h b/drivers/staging/rdma/ehca/hipz_fns_core.h
index 868735fd3187..868735fd3187 100644
--- a/drivers/infiniband/hw/ehca/hipz_fns_core.h
+++ b/drivers/staging/rdma/ehca/hipz_fns_core.h
diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/staging/rdma/ehca/hipz_hw.h
index bf996c7acc42..bf996c7acc42 100644
--- a/drivers/infiniband/hw/ehca/hipz_hw.h
+++ b/drivers/staging/rdma/ehca/hipz_hw.h
diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/staging/rdma/ehca/ipz_pt_fn.c
index 7ffc748cb973..7ffc748cb973 100644
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c
+++ b/drivers/staging/rdma/ehca/ipz_pt_fn.c
diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/drivers/staging/rdma/ehca/ipz_pt_fn.h
index a801274ea337..a801274ea337 100644
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.h
+++ b/drivers/staging/rdma/ehca/ipz_pt_fn.h
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c
index 654eafef1d30..aa58e597df06 100644
--- a/drivers/staging/rdma/hfi1/chip.c
+++ b/drivers/staging/rdma/hfi1/chip.c
@@ -2710,7 +2710,7 @@ int acquire_lcb_access(struct hfi1_devdata *dd, int sleep_ok)
         if (sleep_ok) {
                 mutex_lock(&ppd->hls_lock);
         } else {
-                while (mutex_trylock(&ppd->hls_lock) == EBUSY)
+                while (!mutex_trylock(&ppd->hls_lock))
                         udelay(1);
         }
 
@@ -2758,7 +2758,7 @@ int release_lcb_access(struct hfi1_devdata *dd, int sleep_ok)
         if (sleep_ok) {
                 mutex_lock(&dd->pport->hls_lock);
         } else {
-                while (mutex_trylock(&dd->pport->hls_lock) == EBUSY)
+                while (!mutex_trylock(&dd->pport->hls_lock))
                         udelay(1);
         }
 
diff --git a/drivers/staging/rdma/hfi1/device.c b/drivers/staging/rdma/hfi1/device.c
index 07c87a87775f..bc26a5392712 100644
--- a/drivers/staging/rdma/hfi1/device.c
+++ b/drivers/staging/rdma/hfi1/device.c
@@ -57,11 +57,13 @@
 #include "device.h"
 
 static struct class *class;
+static struct class *user_class;
 static dev_t hfi1_dev;
 
 int hfi1_cdev_init(int minor, const char *name,
                    const struct file_operations *fops,
-                   struct cdev *cdev, struct device **devp)
+                   struct cdev *cdev, struct device **devp,
+                   bool user_accessible)
 {
         const dev_t dev = MKDEV(MAJOR(hfi1_dev), minor);
         struct device *device = NULL;
@@ -78,7 +80,11 @@ int hfi1_cdev_init(int minor, const char *name,
                 goto done;
         }
 
-        device = device_create(class, NULL, dev, NULL, "%s", name);
+        if (user_accessible)
+                device = device_create(user_class, NULL, dev, NULL, "%s", name);
+        else
+                device = device_create(class, NULL, dev, NULL, "%s", name);
+
         if (!IS_ERR(device))
                 goto done;
         ret = PTR_ERR(device);
@@ -110,6 +116,26 @@ const char *class_name(void)
         return hfi1_class_name;
 }
 
+static char *hfi1_devnode(struct device *dev, umode_t *mode)
+{
+        if (mode)
+                *mode = 0600;
+        return kasprintf(GFP_KERNEL, "%s", dev_name(dev));
+}
+
+static const char *hfi1_class_name_user = "hfi1_user";
+const char *class_name_user(void)
+{
+        return hfi1_class_name_user;
+}
+
+static char *hfi1_user_devnode(struct device *dev, umode_t *mode)
+{
+        if (mode)
+                *mode = 0666;
+        return kasprintf(GFP_KERNEL, "%s", dev_name(dev));
+}
+
 int __init dev_init(void)
 {
         int ret;
@@ -125,7 +151,22 @@ int __init dev_init(void)
                 ret = PTR_ERR(class);
                 pr_err("Could not create device class (err %d)\n", -ret);
                 unregister_chrdev_region(hfi1_dev, HFI1_NMINORS);
+                goto done;
         }
+        class->devnode = hfi1_devnode;
+
+        user_class = class_create(THIS_MODULE, class_name_user());
+        if (IS_ERR(user_class)) {
+                ret = PTR_ERR(user_class);
+                pr_err("Could not create device class for user accessible files (err %d)\n",
+                       -ret);
+                class_destroy(class);
+                class = NULL;
+                user_class = NULL;
+                unregister_chrdev_region(hfi1_dev, HFI1_NMINORS);
+                goto done;
+        }
+        user_class->devnode = hfi1_user_devnode;
 
 done:
         return ret;
@@ -133,10 +174,11 @@ done:
 
 void dev_cleanup(void)
 {
-        if (class) {
-                class_destroy(class);
-                class = NULL;
-        }
+        class_destroy(class);
+        class = NULL;
+
+        class_destroy(user_class);
+        user_class = NULL;
 
         unregister_chrdev_region(hfi1_dev, HFI1_NMINORS);
 }
diff --git a/drivers/staging/rdma/hfi1/device.h b/drivers/staging/rdma/hfi1/device.h
index 98caecd3d807..2850ff739d81 100644
--- a/drivers/staging/rdma/hfi1/device.h
+++ b/drivers/staging/rdma/hfi1/device.h
@@ -52,7 +52,8 @@
 
 int hfi1_cdev_init(int minor, const char *name,
                    const struct file_operations *fops,
-                   struct cdev *cdev, struct device **devp);
+                   struct cdev *cdev, struct device **devp,
+                   bool user_accessible);
 void hfi1_cdev_cleanup(struct cdev *cdev, struct device **devp);
 const char *class_name(void);
 int __init dev_init(void);
diff --git a/drivers/staging/rdma/hfi1/diag.c b/drivers/staging/rdma/hfi1/diag.c
index 6777d6b659cf..3e8d5ac4c626 100644
--- a/drivers/staging/rdma/hfi1/diag.c
+++ b/drivers/staging/rdma/hfi1/diag.c
@@ -292,7 +292,7 @@ int hfi1_diag_add(struct hfi1_devdata *dd)
         if (atomic_inc_return(&diagpkt_count) == 1) {
                 ret = hfi1_cdev_init(HFI1_DIAGPKT_MINOR, name,
                                      &diagpkt_file_ops, &diagpkt_cdev,
-                                     &diagpkt_device);
+                                     &diagpkt_device, false);
         }
 
         return ret;
@@ -592,7 +592,8 @@ static int hfi1_snoop_add(struct hfi1_devdata *dd, const char *name)
 
         ret = hfi1_cdev_init(HFI1_SNOOP_CAPTURE_BASE + dd->unit, name,
                              &snoop_file_ops,
-                             &dd->hfi1_snoop.cdev, &dd->hfi1_snoop.class_dev);
+                             &dd->hfi1_snoop.cdev, &dd->hfi1_snoop.class_dev,
+                             false);
 
         if (ret) {
                 dd_dev_err(dd, "Couldn't create %s device: %d", name, ret);
@@ -1012,11 +1013,10 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
                 case HFI1_SNOOP_IOCSETLINKSTATE_EXTRA:
                         memset(&link_info, 0, sizeof(link_info));
 
-                        ret = copy_from_user(&link_info,
+                        if (copy_from_user(&link_info,
                                 (struct hfi1_link_info __user *)arg,
-                                sizeof(link_info));
-                        if (ret)
-                                break;
+                                sizeof(link_info)))
+                                ret = -EFAULT;
 
                         value = link_info.port_state;
                         index = link_info.port_number;
@@ -1080,9 +1080,10 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
                 case HFI1_SNOOP_IOCGETLINKSTATE_EXTRA:
                         if (cmd == HFI1_SNOOP_IOCGETLINKSTATE_EXTRA) {
                                 memset(&link_info, 0, sizeof(link_info));
-                                ret = copy_from_user(&link_info,
+                                if (copy_from_user(&link_info,
                                         (struct hfi1_link_info __user *)arg,
-                                        sizeof(link_info));
+                                        sizeof(link_info)))
+                                        ret = -EFAULT;
                                 index = link_info.port_number;
                         } else {
                                 ret = __get_user(index, (int __user *) arg);
@@ -1114,9 +1115,10 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
                                                         ppd->link_speed_active;
                                 link_info.link_width_active =
                                                         ppd->link_width_active;
-                                ret = copy_to_user(
+                                if (copy_to_user(
                                         (struct hfi1_link_info __user *)arg,
-                                        &link_info, sizeof(link_info));
+                                        &link_info, sizeof(link_info)))
+                                        ret = -EFAULT;
                         } else {
                                 ret = __put_user(value, (int __user *)arg);
                         }
@@ -1142,10 +1144,9 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
                         snoop_dbg("Setting filter");
                         /* just copy command structure */
                         argp = (unsigned long *)arg;
-                        ret = copy_from_user(&filter_cmd, (void __user *)argp,
-                                             sizeof(filter_cmd));
-                        if (ret < 0) {
-                                pr_alert("Error copying filter command\n");
+                        if (copy_from_user(&filter_cmd, (void __user *)argp,
+                                             sizeof(filter_cmd))) {
+                                ret = -EFAULT;
                                 break;
                         }
                         if (filter_cmd.opcode >= HFI1_MAX_FILTERS) {
@@ -1167,12 +1168,11 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
                                 break;
                         }
                         /* copy remaining data from userspace */
-                        ret = copy_from_user((u8 *)filter_value,
+                        if (copy_from_user((u8 *)filter_value,
                                         (void __user *)filter_cmd.value_ptr,
-                                        filter_cmd.length);
-                        if (ret < 0) {
+                                        filter_cmd.length)) {
                                 kfree(filter_value);
-                                pr_alert("Error copying filter data\n");
+                                ret = -EFAULT;
                                 break;
                         }
                         /* Drain packets first */
diff --git a/drivers/staging/rdma/hfi1/file_ops.c b/drivers/staging/rdma/hfi1/file_ops.c
index 469861750b76..72d38500d8ce 100644
--- a/drivers/staging/rdma/hfi1/file_ops.c
+++ b/drivers/staging/rdma/hfi1/file_ops.c
@@ -1181,6 +1181,7 @@ static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len)
         struct hfi1_filedata *fd = fp->private_data;
         int ret = 0;
 
+        memset(&cinfo, 0, sizeof(cinfo));
         ret = hfi1_get_base_kinfo(uctxt, &cinfo);
         if (ret < 0)
                 goto done;
@@ -2089,14 +2090,16 @@ static int user_add(struct hfi1_devdata *dd)
 
         if (atomic_inc_return(&user_count) == 1) {
                 ret = hfi1_cdev_init(0, class_name(), &hfi1_file_ops,
-                                     &wildcard_cdev, &wildcard_device);
+                                     &wildcard_cdev, &wildcard_device,
+                                     true);
                 if (ret)
                         goto done;
         }
 
         snprintf(name, sizeof(name), "%s_%d", class_name(), dd->unit);
         ret = hfi1_cdev_init(dd->unit + 1, name, &hfi1_file_ops,
-                             &dd->user_cdev, &dd->user_device);
+                             &dd->user_cdev, &dd->user_device,
+                             true);
         if (ret)
                 goto done;
 
@@ -2104,7 +2107,8 @@ static int user_add(struct hfi1_devdata *dd)
                 snprintf(name, sizeof(name),
                          "%s_ui%d", class_name(), dd->unit);
                 ret = hfi1_cdev_init(dd->unit + UI_OFFSET, name, &ui_file_ops,
-                                     &dd->ui_cdev, &dd->ui_device);
+                                     &dd->ui_cdev, &dd->ui_device,
+                                     false);
                 if (ret)
                         goto done;
         }
diff --git a/drivers/staging/rdma/hfi1/mad.c b/drivers/staging/rdma/hfi1/mad.c
index 37269eb90c34..b2c1b72d38ce 100644
--- a/drivers/staging/rdma/hfi1/mad.c
+++ b/drivers/staging/rdma/hfi1/mad.c
@@ -1717,9 +1717,9 @@ static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
         psi->port_states.portphysstate_portstate =
                 (hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf);
         psi->link_width_downgrade_tx_active =
-          ppd->link_width_downgrade_tx_active;
+                cpu_to_be16(ppd->link_width_downgrade_tx_active);
         psi->link_width_downgrade_rx_active =
-          ppd->link_width_downgrade_rx_active;
+                cpu_to_be16(ppd->link_width_downgrade_rx_active);
         if (resp_len)
                 *resp_len += sizeof(struct opa_port_state_info);
 
diff --git a/drivers/staging/rdma/hfi1/sdma.c b/drivers/staging/rdma/hfi1/sdma.c
index a8c903caecce..aecd1a74741c 100644
--- a/drivers/staging/rdma/hfi1/sdma.c
+++ b/drivers/staging/rdma/hfi1/sdma.c
@@ -737,7 +737,7 @@ u16 sdma_get_descq_cnt(void)
          */
         if (!is_power_of_2(count))
                 return SDMA_DESCQ_CNT;
-        if (count < 64 && count > 32768)
+        if (count < 64 || count > 32768)
                 return SDMA_DESCQ_CNT;
         return count;
 }
@@ -1848,7 +1848,7 @@ static void dump_sdma_state(struct sdma_engine *sde)
                         dd_dev_err(sde->dd,
                                 "\taidx: %u amode: %u alen: %u\n",
                                 (u8)((desc[1] & SDMA_DESC1_HEADER_INDEX_SMASK)
-                                        >> SDMA_DESC1_HEADER_INDEX_MASK),
+                                        >> SDMA_DESC1_HEADER_INDEX_SHIFT),
                                 (u8)((desc[1] & SDMA_DESC1_HEADER_MODE_SMASK)
                                         >> SDMA_DESC1_HEADER_MODE_SHIFT),
                                 (u8)((desc[1] & SDMA_DESC1_HEADER_DWS_SMASK)
@@ -1926,7 +1926,7 @@ void sdma_seqfile_dump_sde(struct seq_file *s, struct sdma_engine *sde)
                 if (desc[0] & SDMA_DESC0_FIRST_DESC_FLAG)
                         seq_printf(s, "\t\tahgidx: %u ahgmode: %u\n",
                                 (u8)((desc[1] & SDMA_DESC1_HEADER_INDEX_SMASK)
-                                        >> SDMA_DESC1_HEADER_INDEX_MASK),
+                                        >> SDMA_DESC1_HEADER_INDEX_SHIFT),
                                 (u8)((desc[1] & SDMA_DESC1_HEADER_MODE_SMASK)
                                         >> SDMA_DESC1_HEADER_MODE_SHIFT));
                 head = (head + 1) & sde->sdma_mask;
diff --git a/drivers/staging/rdma/hfi1/sdma.h b/drivers/staging/rdma/hfi1/sdma.h
index 1e613fcd8f4c..496086903891 100644
--- a/drivers/staging/rdma/hfi1/sdma.h
+++ b/drivers/staging/rdma/hfi1/sdma.h
@@ -109,53 +109,53 @@
 /*
  * Bits defined in the send DMA descriptor.
  */
-#define SDMA_DESC0_FIRST_DESC_FLAG      (1ULL<<63)
-#define SDMA_DESC0_LAST_DESC_FLAG       (1ULL<<62)
+#define SDMA_DESC0_FIRST_DESC_FLAG      (1ULL << 63)
+#define SDMA_DESC0_LAST_DESC_FLAG       (1ULL << 62)
 #define SDMA_DESC0_BYTE_COUNT_SHIFT     48
 #define SDMA_DESC0_BYTE_COUNT_WIDTH     14
 #define SDMA_DESC0_BYTE_COUNT_MASK \
-        ((1ULL<<SDMA_DESC0_BYTE_COUNT_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC0_BYTE_COUNT_WIDTH) - 1)
 #define SDMA_DESC0_BYTE_COUNT_SMASK \
-        (SDMA_DESC0_BYTE_COUNT_MASK<<SDMA_DESC0_BYTE_COUNT_SHIFT)
+        (SDMA_DESC0_BYTE_COUNT_MASK << SDMA_DESC0_BYTE_COUNT_SHIFT)
 #define SDMA_DESC0_PHY_ADDR_SHIFT       0
 #define SDMA_DESC0_PHY_ADDR_WIDTH       48
 #define SDMA_DESC0_PHY_ADDR_MASK \
-        ((1ULL<<SDMA_DESC0_PHY_ADDR_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC0_PHY_ADDR_WIDTH) - 1)
 #define SDMA_DESC0_PHY_ADDR_SMASK \
-        (SDMA_DESC0_PHY_ADDR_MASK<<SDMA_DESC0_PHY_ADDR_SHIFT)
+        (SDMA_DESC0_PHY_ADDR_MASK << SDMA_DESC0_PHY_ADDR_SHIFT)
 
 #define SDMA_DESC1_HEADER_UPDATE1_SHIFT 32
 #define SDMA_DESC1_HEADER_UPDATE1_WIDTH 32
 #define SDMA_DESC1_HEADER_UPDATE1_MASK \
-        ((1ULL<<SDMA_DESC1_HEADER_UPDATE1_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC1_HEADER_UPDATE1_WIDTH) - 1)
 #define SDMA_DESC1_HEADER_UPDATE1_SMASK \
-        (SDMA_DESC1_HEADER_UPDATE1_MASK<<SDMA_DESC1_HEADER_UPDATE1_SHIFT)
+        (SDMA_DESC1_HEADER_UPDATE1_MASK << SDMA_DESC1_HEADER_UPDATE1_SHIFT)
 #define SDMA_DESC1_HEADER_MODE_SHIFT    13
 #define SDMA_DESC1_HEADER_MODE_WIDTH    3
 #define SDMA_DESC1_HEADER_MODE_MASK \
-        ((1ULL<<SDMA_DESC1_HEADER_MODE_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC1_HEADER_MODE_WIDTH) - 1)
 #define SDMA_DESC1_HEADER_MODE_SMASK \
-        (SDMA_DESC1_HEADER_MODE_MASK<<SDMA_DESC1_HEADER_MODE_SHIFT)
+        (SDMA_DESC1_HEADER_MODE_MASK << SDMA_DESC1_HEADER_MODE_SHIFT)
 #define SDMA_DESC1_HEADER_INDEX_SHIFT   8
 #define SDMA_DESC1_HEADER_INDEX_WIDTH   5
 #define SDMA_DESC1_HEADER_INDEX_MASK \
-        ((1ULL<<SDMA_DESC1_HEADER_INDEX_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC1_HEADER_INDEX_WIDTH) - 1)
 #define SDMA_DESC1_HEADER_INDEX_SMASK \
-        (SDMA_DESC1_HEADER_INDEX_MASK<<SDMA_DESC1_HEADER_INDEX_SHIFT)
+        (SDMA_DESC1_HEADER_INDEX_MASK << SDMA_DESC1_HEADER_INDEX_SHIFT)
 #define SDMA_DESC1_HEADER_DWS_SHIFT     4
 #define SDMA_DESC1_HEADER_DWS_WIDTH     4
 #define SDMA_DESC1_HEADER_DWS_MASK \
-        ((1ULL<<SDMA_DESC1_HEADER_DWS_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC1_HEADER_DWS_WIDTH) - 1)
 #define SDMA_DESC1_HEADER_DWS_SMASK \
-        (SDMA_DESC1_HEADER_DWS_MASK<<SDMA_DESC1_HEADER_DWS_SHIFT)
+        (SDMA_DESC1_HEADER_DWS_MASK << SDMA_DESC1_HEADER_DWS_SHIFT)
 #define SDMA_DESC1_GENERATION_SHIFT     2
 #define SDMA_DESC1_GENERATION_WIDTH     2
 #define SDMA_DESC1_GENERATION_MASK \
-        ((1ULL<<SDMA_DESC1_GENERATION_WIDTH)-1ULL)
+        ((1ULL << SDMA_DESC1_GENERATION_WIDTH) - 1)
 #define SDMA_DESC1_GENERATION_SMASK \
-        (SDMA_DESC1_GENERATION_MASK<<SDMA_DESC1_GENERATION_SHIFT)
-#define SDMA_DESC1_INT_REQ_FLAG         (1ULL<<1)
-#define SDMA_DESC1_HEAD_TO_HOST_FLAG    (1ULL<<0)
+        (SDMA_DESC1_GENERATION_MASK << SDMA_DESC1_GENERATION_SHIFT)
+#define SDMA_DESC1_INT_REQ_FLAG         (1ULL << 1)
+#define SDMA_DESC1_HEAD_TO_HOST_FLAG    (1ULL << 0)
 
 enum sdma_states {
         sdma_state_s00_hw_down,
diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c
index 53ac21431542..41bb59eb001c 100644
--- a/drivers/staging/rdma/hfi1/verbs.c
+++ b/drivers/staging/rdma/hfi1/verbs.c
@@ -749,11 +749,13 @@ static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
         struct verbs_txreq *tx;
 
         tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC);
-        if (!tx)
+        if (!tx) {
                 /* call slow path to get the lock */
                 tx =  __get_txreq(dev, qp);
-        if (tx)
-                tx->qp = qp;
+                if (IS_ERR(tx))
+                        return tx;
+        }
+        tx->qp = qp;
         return tx;
 }
 
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 7d137a43cc86..9eda69e40678 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -61,8 +61,7 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
 enum {
         VHOST_NET_FEATURES = VHOST_FEATURES |
                          (1ULL << VHOST_NET_F_VIRTIO_NET_HDR) |
-                         (1ULL << VIRTIO_NET_F_MRG_RXBUF) |
-                         (1ULL << VIRTIO_F_VERSION_1),
+                         (1ULL << VIRTIO_NET_F_MRG_RXBUF)
 };
 
 enum {
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index f114a9dbb48f..e25a23692822 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -166,9 +166,7 @@ enum {
 /* Note: can't set VIRTIO_F_VERSION_1 yet, since that implies ANY_LAYOUT. */
 enum {
         VHOST_SCSI_FEATURES = VHOST_FEATURES | (1ULL << VIRTIO_SCSI_F_HOTPLUG) |
-                                               (1ULL << VIRTIO_SCSI_F_T10_PI) |
-                                               (1ULL << VIRTIO_F_ANY_LAYOUT) |
-                                               (1ULL << VIRTIO_F_VERSION_1)
+                                               (1ULL << VIRTIO_SCSI_F_T10_PI)
 };
 
 #define VHOST_SCSI_MAX_TARGET   256
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index d9c501eaa6c3..f2882ac98726 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -277,10 +277,13 @@ static long vhost_test_ioctl(struct file *f, unsigned int ioctl,
                         return -EFAULT;
                 return 0;
         case VHOST_SET_FEATURES:
+                printk(KERN_ERR "1\n");
                 if (copy_from_user(&features, featurep, sizeof features))
                         return -EFAULT;
+                printk(KERN_ERR "2\n");
                 if (features & ~VHOST_FEATURES)
                         return -EOPNOTSUPP;
+                printk(KERN_ERR "3\n");
                 return vhost_test_set_features(n, features);
         case VHOST_RESET_OWNER:
                 return vhost_test_reset_owner(n);
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index ce6f6da4b09f..4772862b71a7 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -173,7 +173,9 @@ enum {
         VHOST_FEATURES = (1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) |
                          (1ULL << VIRTIO_RING_F_INDIRECT_DESC) |
                          (1ULL << VIRTIO_RING_F_EVENT_IDX) |
-                         (1ULL << VHOST_F_LOG_ALL),
+                         (1ULL << VHOST_F_LOG_ALL) |
+                         (1ULL << VIRTIO_F_ANY_LAYOUT) |
+                         (1ULL << VIRTIO_F_VERSION_1)
 };
 
 static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 22ea424ee741..073bb57adab1 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1242,6 +1242,13 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
                                 goto out_clear;
                         }
                         bd_set_size(bdev, (loff_t)bdev->bd_part->nr_sects << 9);
+                        /*
+                         * If the partition is not aligned on a page
+                         * boundary, we can't do dax I/O to it.
+                         */
+                        if ((bdev->bd_part->start_sect % (PAGE_SIZE / 512)) ||
+                            (bdev->bd_part->nr_sects % (PAGE_SIZE / 512)))
+                                bdev->bd_inode->i_flags &= ~S_DAX;
                 }
         } else {
                 if (bdev->bd_contains == bdev) {
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 6a1119e87fbb..e739950ca084 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -325,8 +325,11 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
 static void
 cifs_show_security(struct seq_file *s, struct cifs_ses *ses)
 {
-        if (ses->sectype == Unspecified)
+        if (ses->sectype == Unspecified) {
+                if (ses->user_name == NULL)
+                        seq_puts(s, ",sec=none");
                 return;
+        }
 
         seq_puts(s, ",sec=");
 
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index c63f5227b681..28a77bf1d559 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -67,6 +67,12 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
                 goto out_drop_write;
         }
 
+        if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
+                rc = -EBADF;
+                cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
+                goto out_fput;
+        }
+
         if ((!src_file.file->private_data) || (!dst_file->private_data)) {
                 rc = -EBADF;
                 cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
diff --git a/fs/dax.c b/fs/dax.c
index 93bf2f990ace..7ae6df7ea1d2 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -119,7 +119,8 @@ static ssize_t dax_io(struct inode *inode, struct iov_iter *iter,
                 size_t len;
                 if (pos == max) {
                         unsigned blkbits = inode->i_blkbits;
-                        sector_t block = pos >> blkbits;
+                        long page = pos >> PAGE_SHIFT;
+                        sector_t block = page << (PAGE_SHIFT - blkbits);
                         unsigned first = pos - (block << blkbits);
                         long size;
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 587ac08eabb6..091a36444972 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1481,6 +1481,21 @@ static long writeback_sb_inodes(struct super_block *sb,
                 wbc_detach_inode(&wbc);
                 work->nr_pages -= write_chunk - wbc.nr_to_write;
                 wrote += write_chunk - wbc.nr_to_write;
+
+                if (need_resched()) {
+                        /*
+                         * We're trying to balance between building up a nice
+                         * long list of IOs to improve our merge rate, and
+                         * getting those IOs out quickly for anyone throttling
+                         * in balance_dirty_pages().  cond_resched() doesn't
+                         * unplug, so get our IOs out the door before we
+                         * give up the CPU.
+                         */
+                        blk_flush_plug(current);
+                        cond_resched();
+                }
+
+
                 spin_lock(&wb->list_lock);
                 spin_lock(&inode->i_lock);
                 if (!(inode->i_state & I_DIRTY_ALL))
@@ -1488,7 +1503,7 @@ static long writeback_sb_inodes(struct super_block *sb,
                 requeue_inode(inode, wb, &wbc);
                 inode_sync_complete(inode);
                 spin_unlock(&inode->i_lock);
-                cond_resched_lock(&wb->list_lock);
+
                 /*
                  * bail out to wb_writeback() often enough to check
                  * background threshold and other termination conditions.
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 634e676072cb..f9aeb40a7197 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1287,8 +1287,10 @@ static struct file *userfaultfd_file_create(int flags)
 
         file = anon_inode_getfile("[userfaultfd]", &userfaultfd_fops, ctx,
                                   O_RDWR | (flags & UFFD_SHARED_FCNTL_FLAGS));
-        if (IS_ERR(file))
+        if (IS_ERR(file)) {
+                mmput(ctx->mm);
                 kmem_cache_free(userfaultfd_ctx_cachep, ctx);
+        }
 out:
         return file;
 }
diff --git a/include/acpi/button.h b/include/acpi/button.h
index 97eea0e4c016..1cad8b2d460c 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -3,7 +3,7 @@
 
 #include <linux/notifier.h>
 
-#if defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE)
+#if IS_ENABLED(CONFIG_ACPI_BUTTON)
 extern int acpi_lid_notifier_register(struct notifier_block *nb);
 extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
 extern int acpi_lid_open(void);
@@ -20,6 +20,6 @@ static inline int acpi_lid_open(void)
 {
         return 1;
 }
-#endif /* defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE) */
+#endif /* IS_ENABLED(CONFIG_ACPI_BUTTON) */
 
 #endif /* ACPI_BUTTON_H */
diff --git a/include/acpi/video.h b/include/acpi/video.h
index e840b294c6f5..c62392d9b52a 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -24,7 +24,7 @@ enum acpi_backlight_type {
         acpi_backlight_native,
 };
 
-#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
+#if IS_ENABLED(CONFIG_ACPI_VIDEO)
 extern int acpi_video_register(void);
 extern void acpi_video_unregister(void);
 extern int acpi_video_get_edid(struct acpi_device *device, int type,
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index f20f407ce45d..4b4b056a6eb0 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -73,7 +73,7 @@
  * Convert a physical address to a Page Frame Number and back
  */
 #define __phys_to_pfn(paddr)    ((unsigned long)((paddr) >> PAGE_SHIFT))
-#define __pfn_to_phys(pfn)      ((pfn) << PAGE_SHIFT)
+#define __pfn_to_phys(pfn)      PFN_PHYS(pfn)
 
 #define page_to_pfn __page_to_pfn
 #define pfn_to_page __pfn_to_page
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 83bfb87f5bf1..e2aadbc7151f 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -111,8 +111,8 @@ static inline void queued_spin_unlock_wait(struct qspinlock *lock)
                 cpu_relax();
 }
 
-#ifndef virt_queued_spin_lock
-static __always_inline bool virt_queued_spin_lock(struct qspinlock *lock)
+#ifndef virt_spin_lock
+static __always_inline bool virt_spin_lock(struct qspinlock *lock)
 {
         return false;
 }
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index d901f1a47be6..4e14dac282bb 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -35,11 +35,7 @@
 #define VGIC_V3_MAX_LRS         16
 #define VGIC_MAX_IRQS           1024
 #define VGIC_V2_MAX_CPUS        8
-
-/* Sanity checks... */
-#if (KVM_MAX_VCPUS > 255)
-#error Too many KVM VCPUs, the VGIC only supports up to 255 VCPUs for now
-#endif
+#define VGIC_V3_MAX_CPUS        255
 
 #if (VGIC_NR_IRQS_LEGACY & 31)
 #error "VGIC_NR_IRQS must be a multiple of 32"
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 38a5ff772a37..99da9ebc7377 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1368,6 +1368,26 @@ static inline bool bvec_gap_to_prev(struct request_queue *q,
                 ((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q));
 }
 
+static inline bool bio_will_gap(struct request_queue *q, struct bio *prev,
+                         struct bio *next)
+{
+        if (!bio_has_data(prev))
+                return false;
+
+        return bvec_gap_to_prev(q, &prev->bi_io_vec[prev->bi_vcnt - 1],
+                                next->bi_io_vec[0].bv_offset);
+}
+
+static inline bool req_gap_back_merge(struct request *req, struct bio *bio)
+{
+        return bio_will_gap(req->q, req->biotail, bio);
+}
+
+static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
+{
+        return bio_will_gap(req->q, bio, req->bio);
+}
+
 struct work_struct;
 int kblockd_schedule_work(struct work_struct *work);
 int kblockd_schedule_delayed_work(struct delayed_work *dwork, unsigned long delay);
@@ -1494,6 +1514,26 @@ queue_max_integrity_segments(struct request_queue *q)
         return q->limits.max_integrity_segments;
 }
 
+static inline bool integrity_req_gap_back_merge(struct request *req,
+                                                struct bio *next)
+{
+        struct bio_integrity_payload *bip = bio_integrity(req->bio);
+        struct bio_integrity_payload *bip_next = bio_integrity(next);
+
+        return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+                                bip_next->bip_vec[0].bv_offset);
+}
+
+static inline bool integrity_req_gap_front_merge(struct request *req,
+                                                 struct bio *bio)
+{
+        struct bio_integrity_payload *bip = bio_integrity(bio);
+        struct bio_integrity_payload *bip_next = bio_integrity(req->bio);
+
+        return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+                                bip_next->bip_vec[0].bv_offset);
+}
+
 #else /* CONFIG_BLK_DEV_INTEGRITY */
 
 struct bio;
@@ -1560,6 +1600,16 @@ static inline bool blk_integrity_is_initialized(struct gendisk *g)
 {
         return 0;
 }
+static inline bool integrity_req_gap_back_merge(struct request *req,
+                                                struct bio *next)
+{
+        return false;
+}
+static inline bool integrity_req_gap_front_merge(struct request *req,
+                                                 struct bio *bio)
+{
+        return false;
+}
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 4763ad64e832..f89b31d45cc8 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -107,6 +107,7 @@ static inline u64 ceph_sanitize_features(u64 features)
          CEPH_FEATURE_OSDMAP_ENC |              \
          CEPH_FEATURE_CRUSH_TUNABLES3 |         \
          CEPH_FEATURE_OSD_PRIMARY_AFFINITY |    \
+         CEPH_FEATURE_MSGR_KEEPALIVE2 |         \
          CEPH_FEATURE_CRUSH_V4)
 
 #define CEPH_FEATURES_REQUIRED_DEFAULT   \
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 7e1252e97a30..b2371d9b51fa 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -238,6 +238,8 @@ struct ceph_connection {
         bool out_kvec_is_msg; /* kvec refers to out_msg */
         int out_more;        /* there is more data after the kvecs */
         __le64 out_temp_ack; /* for writing an ack */
+        struct ceph_timespec out_temp_keepalive2; /* for writing keepalive2
+                                                     stamp */
 
         /* message in temps */
         struct ceph_msg_header in_hdr;
@@ -248,7 +250,7 @@ struct ceph_connection {
         int in_base_pos;     /* bytes read */
         __le64 in_temp_ack;  /* for reading an ack */
 
-        struct timespec last_keepalive_ack;
+        struct timespec last_keepalive_ack; /* keepalive2 ack stamp */
 
         struct delayed_work work;           /* send|recv work */
         unsigned long       delay;          /* current delay interval */
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 31ce435981fe..bdcf358dfce2 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -18,15 +18,6 @@
 struct clock_event_device;
 struct module;
 
-/* Clock event mode commands for legacy ->set_mode(): OBSOLETE */
-enum clock_event_mode {
-        CLOCK_EVT_MODE_UNUSED,
-        CLOCK_EVT_MODE_SHUTDOWN,
-        CLOCK_EVT_MODE_PERIODIC,
-        CLOCK_EVT_MODE_ONESHOT,
-        CLOCK_EVT_MODE_RESUME,
-};
-
 /*
  * Possible states of a clock event device.
  *
@@ -86,16 +77,14 @@ enum clock_event_state {
  * @min_delta_ns:       minimum delta value in ns
  * @mult:               nanosecond to cycles multiplier
  * @shift:              nanoseconds to cycles divisor (power of two)
- * @mode:               operating mode, relevant only to ->set_mode(), OBSOLETE
  * @state_use_accessors:current state of the device, assigned by the core code
  * @features:           features
  * @retries:            number of forced programming retries
- * @set_mode:           legacy set mode function, only for modes <= CLOCK_EVT_MODE_RESUME.
- * @set_state_periodic: switch state to periodic, if !set_mode
- * @set_state_oneshot:  switch state to oneshot, if !set_mode
- * @set_state_oneshot_stopped: switch state to oneshot_stopped, if !set_mode
- * @set_state_shutdown: switch state to shutdown, if !set_mode
- * @tick_resume:        resume clkevt device, if !set_mode
+ * @set_state_periodic: switch state to periodic
+ * @set_state_oneshot:  switch state to oneshot
+ * @set_state_oneshot_stopped: switch state to oneshot_stopped
+ * @set_state_shutdown: switch state to shutdown
+ * @tick_resume:        resume clkevt device
  * @broadcast:          function to broadcast events
  * @min_delta_ticks:    minimum delta value in ticks stored for reconfiguration
  * @max_delta_ticks:    maximum delta value in ticks stored for reconfiguration
@@ -116,18 +105,10 @@ struct clock_event_device {
         u64                     min_delta_ns;
         u32                     mult;
         u32                     shift;
-        enum clock_event_mode   mode;
         enum clock_event_state  state_use_accessors;
         unsigned int            features;
         unsigned long           retries;
 
-        /*
-         * State transition callback(s): Only one of the two groups should be
-         * defined:
-         * - set_mode(), only for modes <= CLOCK_EVT_MODE_RESUME.
-         * - set_state_{shutdown|periodic|oneshot|oneshot_stopped}(), tick_resume().
-         */
-        void                    (*set_mode)(enum clock_event_mode mode, struct clock_event_device *);
         int                     (*set_state_periodic)(struct clock_event_device *);
         int                     (*set_state_oneshot)(struct clock_event_device *);
         int                     (*set_state_oneshot_stopped)(struct clock_event_device *);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 430efcbea48e..dca22de98d94 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -127,9 +127,14 @@ struct cpufreq_policy {
 #define CPUFREQ_SHARED_TYPE_ANY  (3) /* Freq can be set from any dependent CPU*/
 
 #ifdef CONFIG_CPU_FREQ
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu);
 struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
 void cpufreq_cpu_put(struct cpufreq_policy *policy);
 #else
+static inline struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+{
+        return NULL;
+}
 static inline struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
 {
         return NULL;
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index ce447f0f1bad..68030e22af35 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -65,7 +65,10 @@ struct devfreq_dev_status {
  *                      The "flags" parameter's possible values are
  *                      explained above with "DEVFREQ_FLAG_*" macros.
  * @get_dev_status:     The device should provide the current performance
- *                      status to devfreq, which is used by governors.
+ *                      status to devfreq. Governors are recommended not to
+ *                      use this directly. Instead, governors are recommended
+ *                      to use devfreq_update_stats() along with
+ *                      devfreq.last_status.
  * @get_cur_freq:       The device should provide the current frequency
  *                      at which it is operating.
  * @exit:               An optional callback that is called when devfreq
@@ -161,6 +164,7 @@ struct devfreq {
         struct delayed_work work;
 
         unsigned long previous_freq;
+        struct devfreq_dev_status last_status;
 
         void *data; /* private data for governors */
 
@@ -204,6 +208,19 @@ extern int devm_devfreq_register_opp_notifier(struct device *dev,
 extern void devm_devfreq_unregister_opp_notifier(struct device *dev,
                                                 struct devfreq *devfreq);
 
+/**
+ * devfreq_update_stats() - update the last_status pointer in struct devfreq
+ * @df:         the devfreq instance whose status needs updating
+ *
+ *  Governors are recommended to use this function along with last_status,
+ * which allows other entities to reuse the last_status without affecting
+ * the values fetched later by governors.
+ */
+static inline int devfreq_update_stats(struct devfreq *df)
+{
+        return df->profile->get_dev_status(df->dev.parent, &df->last_status);
+}
+
 #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
 /**
  * struct devfreq_simple_ondemand_data - void *data fed to struct devfreq
@@ -289,6 +306,11 @@ static inline void devm_devfreq_unregister_opp_notifier(struct device *dev,
                                                         struct devfreq *devfreq)
 {
 }
+
+static inline int devfreq_update_stats(struct devfreq *df)
+{
+        return -EINVAL;
+}
 #endif /* CONFIG_PM_DEVFREQ */
 
 #endif /* __LINUX_DEVFREQ_H__ */
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 6f8b34066442..11bf09288ddb 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -110,8 +110,8 @@ enum {
 /*
  * Return value for chip->irq_set_affinity()
  *
- * IRQ_SET_MASK_OK      - OK, core updates irq_data.affinity
- * IRQ_SET_MASK_NOCPY   - OK, chip did update irq_data.affinity
+ * IRQ_SET_MASK_OK      - OK, core updates irq_common_data.affinity
+ * IRQ_SET_MASK_NOCPY   - OK, chip did update irq_common_data.affinity
  * IRQ_SET_MASK_OK_DONE - Same as IRQ_SET_MASK_OK for core. Special code to
  *                        support stacked irqchips, which indicates skipping
  *                        all descendent irqchips.
@@ -129,9 +129,19 @@ struct irq_domain;
  * struct irq_common_data - per irq data shared by all irqchips
  * @state_use_accessors: status information for irq chip functions.
  *                      Use accessor functions to deal with it
+ * @node:               node index useful for balancing
+ * @handler_data:       per-IRQ data for the irq_chip methods
+ * @affinity:           IRQ affinity on SMP
+ * @msi_desc:           MSI descriptor
  */
 struct irq_common_data {
         unsigned int            state_use_accessors;
+#ifdef CONFIG_NUMA
+        unsigned int            node;
+#endif
+        void                    *handler_data;
+        struct msi_desc         *msi_desc;
+        cpumask_var_t           affinity;
 };
 
 /**
@@ -139,38 +149,26 @@ struct irq_common_data {
  * @mask:               precomputed bitmask for accessing the chip registers
  * @irq:                interrupt number
  * @hwirq:              hardware interrupt number, local to the interrupt domain
- * @node:               node index useful for balancing
  * @common:             point to data shared by all irqchips
  * @chip:               low level interrupt hardware access
  * @domain:             Interrupt translation domain; responsible for mapping
  *                      between hwirq number and linux irq number.
  * @parent_data:        pointer to parent struct irq_data to support hierarchy
  *                      irq_domain
- * @handler_data:       per-IRQ data for the irq_chip methods
  * @chip_data:          platform-specific per-chip private data for the chip
  *                      methods, to allow shared chip implementations
- * @msi_desc:           MSI descriptor
- * @affinity:           IRQ affinity on SMP
- *
- * The fields here need to overlay the ones in irq_desc until we
- * cleaned up the direct references and switched everything over to
- * irq_data.
  */
 struct irq_data {
         u32                     mask;
         unsigned int            irq;
         unsigned long           hwirq;
-        unsigned int            node;
         struct irq_common_data  *common;
         struct irq_chip         *chip;
         struct irq_domain       *domain;
 #ifdef  CONFIG_IRQ_DOMAIN_HIERARCHY
         struct irq_data         *parent_data;
 #endif
-        void                    *handler_data;
         void                    *chip_data;
-        struct msi_desc         *msi_desc;
-        cpumask_var_t           affinity;
 };
 
 /*
@@ -190,6 +188,7 @@ struct irq_data {
  * IRQD_IRQ_MASKED              - Masked state of the interrupt
  * IRQD_IRQ_INPROGRESS          - In progress state of the interrupt
  * IRQD_WAKEUP_ARMED            - Wakeup mode armed
+ * IRQD_FORWARDED_TO_VCPU       - The interrupt is forwarded to a VCPU
  */
 enum {
         IRQD_TRIGGER_MASK               = 0xf,
@@ -204,6 +203,7 @@ enum {
         IRQD_IRQ_MASKED                 = (1 << 17),
         IRQD_IRQ_INPROGRESS             = (1 << 18),
         IRQD_WAKEUP_ARMED               = (1 << 19),
+        IRQD_FORWARDED_TO_VCPU          = (1 << 20),
 };
 
 #define __irqd_to_state(d)              ((d)->common->state_use_accessors)
@@ -282,6 +282,20 @@ static inline bool irqd_is_wakeup_armed(struct irq_data *d)
         return __irqd_to_state(d) & IRQD_WAKEUP_ARMED;
 }
 
+static inline bool irqd_is_forwarded_to_vcpu(struct irq_data *d)
+{
+        return __irqd_to_state(d) & IRQD_FORWARDED_TO_VCPU;
+}
+
+static inline void irqd_set_forwarded_to_vcpu(struct irq_data *d)
+{
+        __irqd_to_state(d) |= IRQD_FORWARDED_TO_VCPU;
+}
+
+static inline void irqd_clr_forwarded_to_vcpu(struct irq_data *d)
+{
+        __irqd_to_state(d) &= ~IRQD_FORWARDED_TO_VCPU;
+}
 
 /*
  * Functions for chained handlers which can be enabled/disabled by the
@@ -461,14 +475,14 @@ static inline int irq_set_parent(int irq, int parent_irq)
  * Built-in IRQ handlers for various IRQ types,
  * callable via desc->handle_irq()
  */
-extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_level_irq(struct irq_desc *desc);
+extern void handle_fasteoi_irq(struct irq_desc *desc);
+extern void handle_edge_irq(struct irq_desc *desc);
+extern void handle_edge_eoi_irq(struct irq_desc *desc);
+extern void handle_simple_irq(struct irq_desc *desc);
+extern void handle_percpu_irq(struct irq_desc *desc);
+extern void handle_percpu_devid_irq(struct irq_desc *desc);
+extern void handle_bad_irq(struct irq_desc *desc);
 extern void handle_nested_irq(unsigned int irq);
 
 extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
@@ -627,23 +641,23 @@ static inline void *irq_data_get_irq_chip_data(struct irq_data *d)
 static inline void *irq_get_handler_data(unsigned int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
-        return d ? d->handler_data : NULL;
+        return d ? d->common->handler_data : NULL;
 }
 
 static inline void *irq_data_get_irq_handler_data(struct irq_data *d)
 {
-        return d->handler_data;
+        return d->common->handler_data;
 }
 
 static inline struct msi_desc *irq_get_msi_desc(unsigned int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
-        return d ? d->msi_desc : NULL;
+        return d ? d->common->msi_desc : NULL;
 }
 
 static inline struct msi_desc *irq_data_get_msi_desc(struct irq_data *d)
 {
-        return d->msi_desc;
+        return d->common->msi_desc;
 }
 
 static inline u32 irq_get_trigger_type(unsigned int irq)
@@ -652,21 +666,30 @@ static inline u32 irq_get_trigger_type(unsigned int irq)
         return d ? irqd_get_trigger_type(d) : 0;
 }
 
-static inline int irq_data_get_node(struct irq_data *d)
+static inline int irq_common_data_get_node(struct irq_common_data *d)
 {
+#ifdef CONFIG_NUMA
         return d->node;
+#else
+        return 0;
+#endif
+}
+
+static inline int irq_data_get_node(struct irq_data *d)
+{
+        return irq_common_data_get_node(d->common);
 }
 
 static inline struct cpumask *irq_get_affinity_mask(int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
 
-        return d ? d->affinity : NULL;
+        return d ? d->common->affinity : NULL;
 }
 
 static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
 {
-        return d->affinity;
+        return d->common->affinity;
 }
 
 unsigned int arch_dynirq_lower_bound(unsigned int from);
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 5acfa26602e1..a587a33363c7 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -98,11 +98,7 @@ extern struct irq_desc irq_desc[NR_IRQS];
 
 static inline struct irq_desc *irq_data_to_desc(struct irq_data *data)
 {
-#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
-        return irq_to_desc(data->irq);
-#else
-        return container_of(data, struct irq_desc, irq_data);
-#endif
+        return container_of(data->common, struct irq_desc, irq_common_data);
 }
 
 static inline unsigned int irq_desc_get_irq(struct irq_desc *desc)
@@ -127,23 +123,21 @@ static inline void *irq_desc_get_chip_data(struct irq_desc *desc)
 
 static inline void *irq_desc_get_handler_data(struct irq_desc *desc)
 {
-        return desc->irq_data.handler_data;
+        return desc->irq_common_data.handler_data;
 }
 
 static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
 {
-        return desc->irq_data.msi_desc;
+        return desc->irq_common_data.msi_desc;
 }
 
 /*
  * Architectures call this to let the generic IRQ layer
- * handle an interrupt. If the descriptor is attached to an
- * irqchip-style controller then we call the ->handle_irq() handler,
- * and it calls __do_IRQ() if it's attached to an irqtype-style controller.
+ * handle an interrupt.
  */
-static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
+static inline void generic_handle_irq_desc(struct irq_desc *desc)
 {
-        desc->handle_irq(irq, desc);
+        desc->handle_irq(desc);
 }
 
 int generic_handle_irq(unsigned int irq);
@@ -176,29 +170,6 @@ static inline int irq_has_action(unsigned int irq)
         return irq_desc_has_action(irq_to_desc(irq));
 }
 
-/* caller has locked the irq_desc and both params are valid */
-static inline void __irq_set_handler_locked(unsigned int irq,
-                                            irq_flow_handler_t handler)
-{
-        struct irq_desc *desc;
-
-        desc = irq_to_desc(irq);
-        desc->handle_irq = handler;
-}
-
-/* caller has locked the irq_desc and both params are valid */
-static inline void
-__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
-                                   irq_flow_handler_t handler, const char *name)
-{
-        struct irq_desc *desc;
-
-        desc = irq_to_desc(irq);
-        irq_desc_get_irq_data(desc)->chip = chip;
-        desc->handle_irq = handler;
-        desc->name = name;
-}
-
 /**
  * irq_set_handler_locked - Set irq handler from a locked region
  * @data:       Pointer to the irq_data structure which identifies the irq
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
index 62d543004197..661bed0ed1f3 100644
--- a/include/linux/irqhandler.h
+++ b/include/linux/irqhandler.h
@@ -8,7 +8,7 @@
 
 struct irq_desc;
 struct irq_data;
-typedef void (*irq_flow_handler_t)(unsigned int irq, struct irq_desc *desc);
+typedef void (*irq_flow_handler_t)(struct irq_desc *desc);
 typedef void (*irq_preflow_handler_t)(struct irq_data *data);
 
 #endif
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 7f653e8f6690..f1094238ab2a 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -21,8 +21,8 @@
  *
  * DEFINE_STATIC_KEY_TRUE(key);
  * DEFINE_STATIC_KEY_FALSE(key);
- * static_key_likely()
- * statick_key_unlikely()
+ * static_branch_likely()
+ * static_branch_unlikely()
  *
  * Jump labels provide an interface to generate dynamic branches using
  * self-modifying code. Assuming toolchain and architecture support, if we
@@ -45,12 +45,10 @@
  * statement, setting the key to true requires us to patch in a jump
  * to the out-of-line of true branch.
  *
- * In addtion to static_branch_{enable,disable}, we can also reference count
+ * In addition to static_branch_{enable,disable}, we can also reference count
  * the key or branch direction via static_branch_{inc,dec}. Thus,
  * static_branch_inc() can be thought of as a 'make more true' and
- * static_branch_dec() as a 'make more false'. The inc()/dec()
- * interface is meant to be used exclusively from the inc()/dec() for a given
- * key.
+ * static_branch_dec() as a 'make more false'.
  *
  * Since this relies on modifying code, the branch modifying functions
  * must be considered absolute slow paths (machine wide synchronization etc.).
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 8fc0bfd8edc4..f6226976e158 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -791,6 +791,9 @@ struct regmap_irq {
         unsigned int mask;
 };
 
+#define REGMAP_IRQ_REG(_irq, _off, _mask)               \
+        [_irq] = { .reg_offset = (_off), .mask = (_mask) }
+
 /**
  * Description of a generic regmap irq_chip.  This is not intended to
  * handle every possible interrupt controller, but it should handle a
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 48d901f83f92..e312219ff823 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -147,11 +147,20 @@ static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask)
                 cpumask_or(mask, mask, tick_nohz_full_mask);
 }
 
+static inline int housekeeping_any_cpu(void)
+{
+        return cpumask_any_and(housekeeping_mask, cpu_online_mask);
+}
+
 extern void tick_nohz_full_kick(void);
 extern void tick_nohz_full_kick_cpu(int cpu);
 extern void tick_nohz_full_kick_all(void);
 extern void __tick_nohz_task_switch(void);
 #else
+static inline int housekeeping_any_cpu(void)
+{
+        return smp_processor_id();
+}
 static inline bool tick_nohz_full_enabled(void) { return false; }
 static inline bool tick_nohz_full_cpu(int cpu) { return false; }
 static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask) { }
diff --git a/include/rdma/opa_port_info.h b/include/rdma/opa_port_info.h
index 391dae1931c0..a0fa975cd1c1 100644
--- a/include/rdma/opa_port_info.h
+++ b/include/rdma/opa_port_info.h
@@ -294,8 +294,8 @@ struct opa_port_states {
 
 struct opa_port_state_info {
         struct opa_port_states port_states;
-        u16 link_width_downgrade_tx_active;
-        u16 link_width_downgrade_rx_active;
+        __be16 link_width_downgrade_tx_active;
+        __be16 link_width_downgrade_rx_active;
 };
 
 struct opa_port_info {
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 6e40a9539763..e28169dd1c36 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -83,7 +83,7 @@ int irq_set_handler_data(unsigned int irq, void *data)
 
         if (!desc)
                 return -EINVAL;
-        desc->irq_data.handler_data = data;
+        desc->irq_common_data.handler_data = data;
         irq_put_desc_unlock(desc, flags);
         return 0;
 }
@@ -105,7 +105,7 @@ int irq_set_msi_desc_off(unsigned int irq_base, unsigned int irq_offset,
 
         if (!desc)
                 return -EINVAL;
-        desc->irq_data.msi_desc = entry;
+        desc->irq_common_data.msi_desc = entry;
         if (entry && !irq_offset)
                 entry->irq = irq_base;
         irq_put_desc_unlock(desc, flags);
@@ -372,7 +372,6 @@ static bool irq_may_run(struct irq_desc *desc)
 
 /**
  *      handle_simple_irq - Simple and software-decoded IRQs.
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  *      Simple interrupts are either sent from a demultiplexing interrupt
@@ -382,8 +381,7 @@ static bool irq_may_run(struct irq_desc *desc)
  *      Note: The caller is expected to handle the ack, clear, mask and
  *      unmask issues if necessary.
  */
-void
-handle_simple_irq(unsigned int irq, struct irq_desc *desc)
+void handle_simple_irq(struct irq_desc *desc)
 {
         raw_spin_lock(&desc->lock);
 
@@ -425,7 +423,6 @@ static void cond_unmask_irq(struct irq_desc *desc)
 
 /**
  *      handle_level_irq - Level type irq handler
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  *      Level type interrupts are active as long as the hardware line has
@@ -433,8 +430,7 @@ static void cond_unmask_irq(struct irq_desc *desc)
  *      it after the associated handler has acknowledged the device, so the
  *      interrupt line is back to inactive.
  */
-void
-handle_level_irq(unsigned int irq, struct irq_desc *desc)
+void handle_level_irq(struct irq_desc *desc)
 {
         raw_spin_lock(&desc->lock);
         mask_ack_irq(desc);
@@ -496,7 +492,6 @@ static void cond_unmask_eoi_irq(struct irq_desc *desc, struct irq_chip *chip)
 
 /**
  *      handle_fasteoi_irq - irq handler for transparent controllers
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  *      Only a single callback will be issued to the chip: an ->eoi()
@@ -504,8 +499,7 @@ static void cond_unmask_eoi_irq(struct irq_desc *desc, struct irq_chip *chip)
  *      for modern forms of interrupt handlers, which handle the flow
  *      details in hardware, transparently.
  */
-void
-handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
+void handle_fasteoi_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = desc->irq_data.chip;
 
@@ -546,7 +540,6 @@ EXPORT_SYMBOL_GPL(handle_fasteoi_irq);
 
 /**
  *      handle_edge_irq - edge type IRQ handler
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  *      Interrupt occures on the falling and/or rising edge of a hardware
@@ -560,8 +553,7 @@ EXPORT_SYMBOL_GPL(handle_fasteoi_irq);
  *      the handler was running. If all pending interrupts are handled, the
  *      loop is left.
  */
-void
-handle_edge_irq(unsigned int irq, struct irq_desc *desc)
+void handle_edge_irq(struct irq_desc *desc)
 {
         raw_spin_lock(&desc->lock);
 
@@ -618,13 +610,12 @@ EXPORT_SYMBOL(handle_edge_irq);
 #ifdef CONFIG_IRQ_EDGE_EOI_HANDLER
 /**
  *      handle_edge_eoi_irq - edge eoi type IRQ handler
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  * Similar as the above handle_edge_irq, but using eoi and w/o the
  * mask/unmask logic.
  */
-void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc)
+void handle_edge_eoi_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
 
@@ -665,13 +656,11 @@ out_eoi:
 
 /**
  *      handle_percpu_irq - Per CPU local irq handler
- *      @irq:   the interrupt number
  *      @desc:  the interrupt description structure for this irq
  *
  *      Per CPU interrupts on SMP machines without locking requirements
  */
-void
-handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
+void handle_percpu_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
 
@@ -688,7 +677,6 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 
 /**
  * handle_percpu_devid_irq - Per CPU local irq handler with per cpu dev ids
- * @irq:        the interrupt number
  * @desc:       the interrupt description structure for this irq
  *
  * Per CPU interrupts on SMP machines without locking requirements. Same as
@@ -698,11 +686,12 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
  * contain the real device id for the cpu on which this handler is
  * called
  */
-void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc)
+void handle_percpu_devid_irq(struct irq_desc *desc)
 {
         struct irq_chip *chip = irq_desc_get_chip(desc);
         struct irqaction *action = desc->action;
         void *dev_id = raw_cpu_ptr(action->percpu_dev_id);
+        unsigned int irq = irq_desc_get_irq(desc);
         irqreturn_t res;
 
         kstat_incr_irqs_this_cpu(desc);
@@ -796,7 +785,7 @@ irq_set_chained_handler_and_data(unsigned int irq, irq_flow_handler_t handle,
                 return;
 
         __irq_do_set_handler(desc, handle, 1, NULL);
-        desc->irq_data.handler_data = data;
+        desc->irq_common_data.handler_data = data;
 
         irq_put_desc_busunlock(desc, flags);
 }
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index b6eeea8a80c5..de41a68fc038 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -27,8 +27,10 @@
  *
  * Handles spurious and unhandled IRQ's. It also prints a debugmessage.
  */
-void handle_bad_irq(unsigned int irq, struct irq_desc *desc)
+void handle_bad_irq(struct irq_desc *desc)
 {
+        unsigned int irq = irq_desc_get_irq(desc);
+
         print_irq_desc(irq, desc);
         kstat_incr_irqs_this_cpu(desc);
         ack_bad_irq(irq);
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index eee4b385cffb..5ef0c2dbe930 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -194,7 +194,7 @@ static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc)
 
 static inline int irq_desc_get_node(struct irq_desc *desc)
 {
-        return irq_data_get_node(&desc->irq_data);
+        return irq_common_data_get_node(&desc->irq_common_data);
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 0a2a4b697bcb..239e2ae2c947 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -38,12 +38,13 @@ static void __init init_irq_default_affinity(void)
 #ifdef CONFIG_SMP
 static int alloc_masks(struct irq_desc *desc, gfp_t gfp, int node)
 {
-        if (!zalloc_cpumask_var_node(&desc->irq_data.affinity, gfp, node))
+        if (!zalloc_cpumask_var_node(&desc->irq_common_data.affinity,
+                                     gfp, node))
                 return -ENOMEM;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
         if (!zalloc_cpumask_var_node(&desc->pending_mask, gfp, node)) {
-                free_cpumask_var(desc->irq_data.affinity);
+                free_cpumask_var(desc->irq_common_data.affinity);
                 return -ENOMEM;
         }
 #endif
@@ -52,11 +53,13 @@ static int alloc_masks(struct irq_desc *desc, gfp_t gfp, int node)
 
 static void desc_smp_init(struct irq_desc *desc, int node)
 {
-        desc->irq_data.node = node;
-        cpumask_copy(desc->irq_data.affinity, irq_default_affinity);
+        cpumask_copy(desc->irq_common_data.affinity, irq_default_affinity);
 #ifdef CONFIG_GENERIC_PENDING_IRQ
         cpumask_clear(desc->pending_mask);
 #endif
+#ifdef CONFIG_NUMA
+        desc->irq_common_data.node = node;
+#endif
 }
 
 #else
@@ -70,12 +73,13 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node,
 {
         int cpu;
 
+        desc->irq_common_data.handler_data = NULL;
+        desc->irq_common_data.msi_desc = NULL;
+
         desc->irq_data.common = &desc->irq_common_data;
         desc->irq_data.irq = irq;
         desc->irq_data.chip = &no_irq_chip;
         desc->irq_data.chip_data = NULL;
-        desc->irq_data.handler_data = NULL;
-        desc->irq_data.msi_desc = NULL;
         irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
         irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
         desc->handle_irq = handle_bad_irq;
@@ -121,7 +125,7 @@ static void free_masks(struct irq_desc *desc)
 #ifdef CONFIG_GENERIC_PENDING_IRQ
         free_cpumask_var(desc->pending_mask);
 #endif
-        free_cpumask_var(desc->irq_data.affinity);
+        free_cpumask_var(desc->irq_common_data.affinity);
 }
 #else
 static inline void free_masks(struct irq_desc *desc) { }
@@ -343,7 +347,7 @@ int generic_handle_irq(unsigned int irq)
 
         if (!desc)
                 return -EINVAL;
-        generic_handle_irq_desc(irq, desc);
+        generic_handle_irq_desc(desc);
         return 0;
 }
 EXPORT_SYMBOL_GPL(generic_handle_irq);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 79baaf8a7813..dc9d27c0c158 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -844,7 +844,6 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain,
                 child->parent_data = irq_data;
                 irq_data->irq = child->irq;
                 irq_data->common = child->common;
-                irq_data->node = child->node;
                 irq_data->domain = domain;
         }
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ad1b064f94fe..f9a59f6cabd2 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -192,7 +192,7 @@ int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
         switch (ret) {
         case IRQ_SET_MASK_OK:
         case IRQ_SET_MASK_OK_DONE:
-                cpumask_copy(data->affinity, mask);
+                cpumask_copy(desc->irq_common_data.affinity, mask);
         case IRQ_SET_MASK_OK_NOCOPY:
                 irq_set_thread_affinity(desc);
                 ret = 0;
@@ -304,7 +304,7 @@ static void irq_affinity_notify(struct work_struct *work)
         if (irq_move_pending(&desc->irq_data))
                 irq_get_pending(cpumask, desc);
         else
-                cpumask_copy(cpumask, desc->irq_data.affinity);
+                cpumask_copy(cpumask, desc->irq_common_data.affinity);
         raw_spin_unlock_irqrestore(&desc->lock, flags);
 
         notify->notify(notify, cpumask);
@@ -375,9 +375,9 @@ static int setup_affinity(struct irq_desc *desc, struct cpumask *mask)
          * one of the targets is online.
          */
         if (irqd_has_set(&desc->irq_data, IRQD_AFFINITY_SET)) {
-                if (cpumask_intersects(desc->irq_data.affinity,
+                if (cpumask_intersects(desc->irq_common_data.affinity,
                                        cpu_online_mask))
-                        set = desc->irq_data.affinity;
+                        set = desc->irq_common_data.affinity;
                 else
                         irqd_clear(&desc->irq_data, IRQD_AFFINITY_SET);
         }
@@ -829,8 +829,8 @@ irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action)
          * This code is triggered unconditionally. Check the affinity
          * mask pointer. For CPU_MASK_OFFSTACK=n this is optimized out.
          */
-        if (desc->irq_data.affinity)
-                cpumask_copy(mask, desc->irq_data.affinity);
+        if (desc->irq_common_data.affinity)
+                cpumask_copy(mask, desc->irq_common_data.affinity);
         else
                 valid = false;
         raw_spin_unlock_irq(&desc->lock);
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 0e97c142ce40..e3a8c9577ba6 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -39,7 +39,7 @@ static struct proc_dir_entry *root_irq_dir;
 static int show_irq_affinity(int type, struct seq_file *m, void *v)
 {
         struct irq_desc *desc = irq_to_desc((long)m->private);
-        const struct cpumask *mask = desc->irq_data.affinity;
+        const struct cpumask *mask = desc->irq_common_data.affinity;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
         if (irqd_is_setaffinity_pending(&desc->irq_data))
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index dd95f44f99b2..b86886beee4f 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -38,7 +38,7 @@ static void resend_irqs(unsigned long arg)
                 clear_bit(irq, irqs_resend);
                 desc = irq_to_desc(irq);
                 local_irq_disable();
-                desc->handle_irq(irq, desc);
+                desc->handle_irq(desc);
                 local_irq_enable();
         }
 }
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 337c8818541d..87e9ce6a63c5 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -289,7 +289,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
         if (pv_enabled())
                 goto queue;
 
-        if (virt_queued_spin_lock(lock))
+        if (virt_spin_lock(lock))
                 return;
 
         /*
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 3595403921bd..2f9c92884817 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -621,18 +621,21 @@ int get_nohz_timer_target(void)
         int i, cpu = smp_processor_id();
         struct sched_domain *sd;
 
-        if (!idle_cpu(cpu))
+        if (!idle_cpu(cpu) && is_housekeeping_cpu(cpu))
                 return cpu;
 
         rcu_read_lock();
         for_each_domain(cpu, sd) {
                 for_each_cpu(i, sched_domain_span(sd)) {
-                        if (!idle_cpu(i)) {
+                        if (!idle_cpu(i) && is_housekeeping_cpu(cpu)) {
                                 cpu = i;
                                 goto unlock;
                         }
                 }
         }
+
+        if (!is_housekeeping_cpu(cpu))
+                cpu = housekeeping_any_cpu();
 unlock:
         rcu_read_unlock();
         return cpu;
@@ -2666,13 +2669,20 @@ unsigned long nr_running(void)
 
 /*
  * Check if only the current task is running on the cpu.
+ *
+ * Caution: this function does not check that the caller has disabled
+ * preemption, thus the result might have a time-of-check-to-time-of-use
+ * race.  The caller is responsible to use it correctly, for example:
+ *
+ * - from a non-preemptable section (of course)
+ *
+ * - from a thread that is bound to a single CPU
+ *
+ * - in a loop with very short iterations (e.g. a polling loop)
  */
 bool single_task_running(void)
 {
-        if (cpu_rq(smp_processor_id())->nr_running == 1)
-                return true;
-        else
-                return false;
+        return raw_rq()->nr_running == 1;
 }
 EXPORT_SYMBOL(single_task_running);
 
@@ -5178,24 +5188,47 @@ static void migrate_tasks(struct rq *dead_rq)
                         break;
 
                 /*
-                 * Ensure rq->lock covers the entire task selection
-                 * until the migration.
+                 * pick_next_task assumes pinned rq->lock.
                  */
                 lockdep_pin_lock(&rq->lock);
                 next = pick_next_task(rq, &fake_task);
                 BUG_ON(!next);
                 next->sched_class->put_prev_task(rq, next);
 
+                /*
+                 * Rules for changing task_struct::cpus_allowed are holding
+                 * both pi_lock and rq->lock, such that holding either
+                 * stabilizes the mask.
+                 *
+                 * Drop rq->lock is not quite as disastrous as it usually is
+                 * because !cpu_active at this point, which means load-balance
+                 * will not interfere. Also, stop-machine.
+                 */
+                lockdep_unpin_lock(&rq->lock);
+                raw_spin_unlock(&rq->lock);
+                raw_spin_lock(&next->pi_lock);
+                raw_spin_lock(&rq->lock);
+
+                /*
+                 * Since we're inside stop-machine, _nothing_ should have
+                 * changed the task, WARN if weird stuff happened, because in
+                 * that case the above rq->lock drop is a fail too.
+                 */
+                if (WARN_ON(task_rq(next) != rq || !task_on_rq_queued(next))) {
+                        raw_spin_unlock(&next->pi_lock);
+                        continue;
+                }
+
                 /* Find suitable destination for @next, with force if needed. */
                 dest_cpu = select_fallback_rq(dead_rq->cpu, next);
 
-                lockdep_unpin_lock(&rq->lock);
                 rq = __migrate_task(rq, next, dest_cpu);
                 if (rq != dead_rq) {
                         raw_spin_unlock(&rq->lock);
                         rq = dead_rq;
                         raw_spin_lock(&rq->lock);
                 }
+                raw_spin_unlock(&next->pi_lock);
         }
 
         rq->stop = stop;
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 50eb107f1198..a9b76a40319e 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -97,20 +97,6 @@ EXPORT_SYMBOL_GPL(clockevent_delta2ns);
 static int __clockevents_switch_state(struct clock_event_device *dev,
                                       enum clock_event_state state)
 {
-        /* Transition with legacy set_mode() callback */
-        if (dev->set_mode) {
-                /* Legacy callback doesn't support new modes */
-                if (state > CLOCK_EVT_STATE_ONESHOT)
-                        return -ENOSYS;
-                /*
-                 * 'clock_event_state' and 'clock_event_mode' have 1-to-1
-                 * mapping until *_ONESHOT, and so a simple cast will work.
-                 */
-                dev->set_mode((enum clock_event_mode)state, dev);
-                dev->mode = (enum clock_event_mode)state;
-                return 0;
-        }
-
         if (dev->features & CLOCK_EVT_FEAT_DUMMY)
                 return 0;
 
@@ -204,12 +190,8 @@ int clockevents_tick_resume(struct clock_event_device *dev)
 {
         int ret = 0;
 
-        if (dev->set_mode) {
-                dev->set_mode(CLOCK_EVT_MODE_RESUME, dev);
-                dev->mode = CLOCK_EVT_MODE_RESUME;
-        } else if (dev->tick_resume) {
+        if (dev->tick_resume)
                 ret = dev->tick_resume(dev);
-        }
 
         return ret;
 }
@@ -460,26 +442,6 @@ int clockevents_unbind_device(struct clock_event_device *ced, int cpu)
 }
 EXPORT_SYMBOL_GPL(clockevents_unbind_device);
 
-/* Sanity check of state transition callbacks */
-static int clockevents_sanity_check(struct clock_event_device *dev)
-{
-        /* Legacy set_mode() callback */
-        if (dev->set_mode) {
-                /* We shouldn't be supporting new modes now */
-                WARN_ON(dev->set_state_periodic || dev->set_state_oneshot ||
-                        dev->set_state_shutdown || dev->tick_resume ||
-                        dev->set_state_oneshot_stopped);
-
-                BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
-                return 0;
-        }
-
-        if (dev->features & CLOCK_EVT_FEAT_DUMMY)
-                return 0;
-
-        return 0;
-}
-
 /**
  * clockevents_register_device - register a clock event device
  * @dev:        device to register
@@ -488,8 +450,6 @@ void clockevents_register_device(struct clock_event_device *dev)
 {
         unsigned long flags;
 
-        BUG_ON(clockevents_sanity_check(dev));
-
         /* Initialize state to DETACHED */
         clockevent_set_state(dev, CLOCK_EVT_STATE_DETACHED);
 
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index d11c55b6ab7d..4fcd99e12aa0 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -398,7 +398,6 @@ void tick_shutdown(unsigned int cpu)
                  * the set mode function!
                  */
                 clockevent_set_state(dev, CLOCK_EVT_STATE_DETACHED);
-                dev->mode = CLOCK_EVT_MODE_UNUSED;
                 clockevents_exchange_device(dev, NULL);
                 dev->event_handler = clockevents_handle_noop;
                 td->evtdev = NULL;
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 3319e16f31e5..7c7ec4515983 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -290,16 +290,17 @@ static int __init tick_nohz_full_setup(char *str)
 __setup("nohz_full=", tick_nohz_full_setup);
 
 static int tick_nohz_cpu_down_callback(struct notifier_block *nfb,
-                                                 unsigned long action,
-                                                 void *hcpu)
+                                       unsigned long action,
+                                       void *hcpu)
 {
         unsigned int cpu = (unsigned long)hcpu;
 
         switch (action & ~CPU_TASKS_FROZEN) {
         case CPU_DOWN_PREPARE:
                 /*
-                 * If we handle the timekeeping duty for full dynticks CPUs,
-                 * we can't safely shutdown that CPU.
+                 * The boot CPU handles housekeeping duty (unbound timers,
+                 * workqueues, timekeeping, ...) on behalf of full dynticks
+                 * CPUs. It must remain online when nohz full is enabled.
                  */
                 if (tick_nohz_full_running && tick_do_timer_cpu == cpu)
                         return NOTIFY_BAD;
@@ -370,6 +371,12 @@ void __init tick_nohz_init(void)
         cpu_notifier(tick_nohz_cpu_down_callback, 0);
         pr_info("NO_HZ: Full dynticks CPUs: %*pbl.\n",
                 cpumask_pr_args(tick_nohz_full_mask));
+
+        /*
+         * We need at least one CPU to handle housekeeping work such
+         * as timekeeping, unbound timers, workqueues, ...
+         */
+        WARN_ON_ONCE(cpumask_empty(housekeeping_mask));
 }
 #endif
 
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index f6ee2e6b6f5d..3739ac6aa473 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1614,7 +1614,7 @@ static __always_inline void timekeeping_freqadjust(struct timekeeper *tk,
         negative = (tick_error < 0);
 
         /* Sort out the magnitude of the correction */
-        tick_error = abs(tick_error);
+        tick_error = abs64(tick_error);
         for (adj = 0; tick_error > interval; adj++)
                 tick_error >>= 1;
 
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 129c96033e46..f75e35b60149 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -225,7 +225,7 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)
                    (unsigned long long) dev->min_delta_ns);
         SEQ_printf(m, " mult:           %u\n", dev->mult);
         SEQ_printf(m, " shift:          %u\n", dev->shift);
-        SEQ_printf(m, " mode:           %d\n", dev->mode);
+        SEQ_printf(m, " mode:           %d\n", clockevent_get_state(dev));
         SEQ_printf(m, " next_event:     %Ld nsecs\n",
                    (unsigned long long) ktime_to_ns(dev->next_event));
 
@@ -233,40 +233,34 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)
         print_name_offset(m, dev->set_next_event);
         SEQ_printf(m, "\n");
 
-        if (dev->set_mode) {
-                SEQ_printf(m, " set_mode:       ");
-                print_name_offset(m, dev->set_mode);
+        if (dev->set_state_shutdown) {
+                SEQ_printf(m, " shutdown: ");
+                print_name_offset(m, dev->set_state_shutdown);
                 SEQ_printf(m, "\n");
-        } else {
-                if (dev->set_state_shutdown) {
-                        SEQ_printf(m, " shutdown: ");
-                        print_name_offset(m, dev->set_state_shutdown);
-                        SEQ_printf(m, "\n");
-                }
+        }
 
-                if (dev->set_state_periodic) {
-                        SEQ_printf(m, " periodic: ");
-                        print_name_offset(m, dev->set_state_periodic);
-                        SEQ_printf(m, "\n");
-                }
+        if (dev->set_state_periodic) {
+                SEQ_printf(m, " periodic: ");
+                print_name_offset(m, dev->set_state_periodic);
+                SEQ_printf(m, "\n");
+        }
 
-                if (dev->set_state_oneshot) {
-                        SEQ_printf(m, " oneshot:  ");
-                        print_name_offset(m, dev->set_state_oneshot);
-                        SEQ_printf(m, "\n");
-                }
+        if (dev->set_state_oneshot) {
+                SEQ_printf(m, " oneshot:  ");
+                print_name_offset(m, dev->set_state_oneshot);
+                SEQ_printf(m, "\n");
+        }
 
-                if (dev->set_state_oneshot_stopped) {
-                        SEQ_printf(m, " oneshot stopped: ");
-                        print_name_offset(m, dev->set_state_oneshot_stopped);
-                        SEQ_printf(m, "\n");
-                }
+        if (dev->set_state_oneshot_stopped) {
+                SEQ_printf(m, " oneshot stopped: ");
+                print_name_offset(m, dev->set_state_oneshot_stopped);
+                SEQ_printf(m, "\n");
+        }
 
-                if (dev->tick_resume) {
-                        SEQ_printf(m, " resume:   ");
-                        print_name_offset(m, dev->tick_resume);
-                        SEQ_printf(m, "\n");
-                }
+        if (dev->tick_resume) {
+                SEQ_printf(m, " resume:   ");
+                print_name_offset(m, dev->tick_resume);
+                SEQ_printf(m, "\n");
         }
 
         SEQ_printf(m, " event_handler:  ");
diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 54036ce2e2dd..5939f63d90cd 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -59,7 +59,11 @@ void string_get_size(u64 size, u64 blk_size, const enum string_size_units units,
         }
 
         exp = divisor[units] / (u32)blk_size;
-        if (size >= exp) {
+        /*
+         * size must be strictly greater than exp here to ensure that remainder
+         * is greater than divisor[units] coming out of the if below.
+         */
+        if (size > exp) {
                 remainder = do_div(size, divisor[units]);
                 remainder *= blk_size;
                 i++;
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index 7b28e9cdf1c7..8da211411b57 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -135,12 +135,11 @@ static __always_inline bool memory_is_poisoned_16(unsigned long addr)
 
         if (unlikely(*shadow_addr)) {
                 u16 shadow_first_bytes = *(u16 *)shadow_addr;
-                s8 last_byte = (addr + 15) & KASAN_SHADOW_MASK;
 
                 if (unlikely(shadow_first_bytes))
                         return true;
 
-                if (likely(!last_byte))
+                if (likely(IS_ALIGNED(addr, 8)))
                         return false;
 
                 return memory_is_poisoned_1(addr + 15);
diff --git a/mm/mmap.c b/mm/mmap.c
index 971dd2cb77d2..c739d6db7193 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -612,8 +612,6 @@ static unsigned long count_vma_pages_range(struct mm_struct *mm,
 void __vma_link_rb(struct mm_struct *mm, struct vm_area_struct *vma,
                 struct rb_node **rb_link, struct rb_node *rb_parent)
 {
-        WARN_ONCE(vma->vm_file && !vma->vm_ops, "missing vma->vm_ops");
-
         /* Update tracking information for the gap following the new vma. */
         if (vma->vm_next)
                 vma_gap_update(vma->vm_next);
@@ -1638,12 +1636,6 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
                  */
                 WARN_ON_ONCE(addr != vma->vm_start);
 
-                /* All file mapping must have ->vm_ops set */
-                if (!vma->vm_ops) {
-                        static const struct vm_operations_struct dummy_ops = {};
-                        vma->vm_ops = &dummy_ops;
-                }
-
                 addr = vma->vm_start;
                 vm_flags = vma->vm_flags;
         } else if (vm_flags & VM_SHARED) {
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 525f454f7531..b9b0e3b5da49 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1353,11 +1353,12 @@ static void prepare_write_keepalive(struct ceph_connection *con)
         dout("prepare_write_keepalive %p\n", con);
         con_out_kvec_reset(con);
         if (con->peer_features & CEPH_FEATURE_MSGR_KEEPALIVE2) {
-                struct timespec ts = CURRENT_TIME;
-                struct ceph_timespec ceph_ts;
-                ceph_encode_timespec(&ceph_ts, &ts);
+                struct timespec now = CURRENT_TIME;
+
                 con_out_kvec_add(con, sizeof(tag_keepalive2), &tag_keepalive2);
-                con_out_kvec_add(con, sizeof(ceph_ts), &ceph_ts);
+                ceph_encode_timespec(&con->out_temp_keepalive2, &now);
+                con_out_kvec_add(con, sizeof(con->out_temp_keepalive2),
+                                 &con->out_temp_keepalive2);
         } else {
                 con_out_kvec_add(con, sizeof(tag_keepalive), &tag_keepalive);
         }
diff --git a/scripts/extract-cert.c b/scripts/extract-cert.c
index 10d23ca9f617..6ce5945a0b89 100644
--- a/scripts/extract-cert.c
+++ b/scripts/extract-cert.c
@@ -1,15 +1,15 @@
 /* Extract X.509 certificate in DER form from PKCS#11 or PEM.
  *
- * Copyright © 2014 Red Hat, Inc. All Rights Reserved.
- * Copyright © 2015 Intel Corporation.
+ * Copyright © 2014-2015 Red Hat, Inc. All Rights Reserved.
+ * Copyright © 2015      Intel Corporation.
  *
  * Authors: David Howells <dhowells@redhat.com>
  *          David Woodhouse <dwmw2@infradead.org>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the licence, or (at your option) any later version.
  */
 #define _GNU_SOURCE
 #include <stdio.h>
diff --git a/scripts/sign-file.c b/scripts/sign-file.c
index 058bba3103e2..c3899ca4811c 100755
--- a/scripts/sign-file.c
+++ b/scripts/sign-file.c
@@ -1,12 +1,15 @@
 /* Sign a module file using the given key.
  *
- * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
+ * Copyright © 2014-2015 Red Hat, Inc. All Rights Reserved.
+ * Copyright © 2015      Intel Corporation.
+ *
+ * Authors: David Howells <dhowells@redhat.com>
+ *          David Woodhouse <dwmw2@infradead.org>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the licence, or (at your option) any later version.
  */
 #define _GNU_SOURCE
 #include <stdio.h>
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 73455089feef..03c1652c9a1f 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -401,7 +401,7 @@ static bool verify_new_ex(struct dev_cgroup *dev_cgroup,
         bool match = false;
 
         RCU_LOCKDEP_WARN(!rcu_read_lock_held() &&
-                         lockdep_is_held(&devcgroup_mutex),
+                         !lockdep_is_held(&devcgroup_mutex),
                          "device_cgroup:verify_new_ex called without proper synchronization");
 
         if (dev_cgroup->behavior == DEVCG_DEFAULT_ALLOW) {
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index eb51325e8ad9..284a76e04628 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -768,8 +768,8 @@ static int process_exit_event(struct perf_tool *tool,
         if (!evsel->attr.sample_id_all) {
                 sample->cpu = 0;
                 sample->time = 0;
-                sample->tid = event->comm.tid;
-                sample->pid = event->comm.pid;
+                sample->tid = event->fork.tid;
+                sample->pid = event->fork.pid;
         }
         print_sample_start(sample, thread, evsel);
         perf_event__fprintf(event, stdout);
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 1aa21c90731b..5b83f56a3b6f 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -34,6 +34,8 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
                 .disabled = 1,
                 .freq = 1,
         };
+        struct cpu_map *cpus;
+        struct thread_map *threads;
 
         attr.sample_freq = 500;
 
@@ -50,14 +52,19 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
         }
         perf_evlist__add(evlist, evsel);
 
-        evlist->cpus = cpu_map__dummy_new();
-        evlist->threads = thread_map__new_by_tid(getpid());
-        if (!evlist->cpus || !evlist->threads) {
+        cpus = cpu_map__dummy_new();
+        threads = thread_map__new_by_tid(getpid());
+        if (!cpus || !threads) {
                 err = -ENOMEM;
                 pr_debug("Not enough memory to create thread/cpu maps\n");
-                goto out_delete_evlist;
+                goto out_free_maps;
         }
 
+        perf_evlist__set_maps(evlist, cpus, threads);
+
+        cpus    = NULL;
+        threads = NULL;
+
         if (perf_evlist__open(evlist)) {
                 const char *knob = "/proc/sys/kernel/perf_event_max_sample_rate";
 
@@ -107,6 +114,9 @@ next_event:
                 err = -1;
         }
 
+out_free_maps:
+        cpu_map__put(cpus);
+        thread_map__put(threads);
 out_delete_evlist:
         perf_evlist__delete(evlist);
         return err;
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 3a8fedef83bc..add16385f13e 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -43,6 +43,8 @@ int test__task_exit(void)
         };
         const char *argv[] = { "true", NULL };
         char sbuf[STRERR_BUFSIZE];
+        struct cpu_map *cpus;
+        struct thread_map *threads;
 
         signal(SIGCHLD, sig_handler);
 
@@ -58,14 +60,19 @@ int test__task_exit(void)
          * perf_evlist__prepare_workload we'll fill in the only thread
          * we're monitoring, the one forked there.
          */
-        evlist->cpus = cpu_map__dummy_new();
-        evlist->threads = thread_map__new_by_tid(-1);
-        if (!evlist->cpus || !evlist->threads) {
+        cpus = cpu_map__dummy_new();
+        threads = thread_map__new_by_tid(-1);
+        if (!cpus || !threads) {
                 err = -ENOMEM;
                 pr_debug("Not enough memory to create thread/cpu maps\n");
-                goto out_delete_evlist;
+                goto out_free_maps;
         }
 
+        perf_evlist__set_maps(evlist, cpus, threads);
+
+        cpus    = NULL;
+        threads = NULL;
+
         err = perf_evlist__prepare_workload(evlist, &target, argv, false,
                                             workload_exec_failed_signal);
         if (err < 0) {
@@ -114,6 +121,9 @@ retry:
                 err = -1;
         }
 
+out_free_maps:
+        cpu_map__put(cpus);
+        thread_map__put(threads);
 out_delete_evlist:
         perf_evlist__delete(evlist);
         return err;
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index cf86f2d3a5e7..c04c60d4863c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1968,7 +1968,8 @@ skip_annotation:
                                           &options[nr_options], dso);
                 nr_options += add_map_opt(browser, &actions[nr_options],
                                           &options[nr_options],
-                                          browser->selection->map);
+                                          browser->selection ?
+                                                browser->selection->map : NULL);
 
                 /* perf script support */
                 if (browser->he_selection) {
@@ -1976,6 +1977,15 @@ skip_annotation:
                                                      &actions[nr_options],
                                                      &options[nr_options],
                                                      thread, NULL);
+                        /*
+                         * Note that browser->selection != NULL
+                         * when browser->he_selection is not NULL,
+                         * so we don't need to check browser->selection
+                         * before fetching browser->selection->sym like what
+                         * we do before fetching browser->selection->map.
+                         *
+                         * See hist_browser__show_entry.
+                         */
                         nr_options += add_script_opt(browser,
                                                      &actions[nr_options],
                                                      &options[nr_options],
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d51a5200c8af..c8fc8a258f42 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -124,6 +124,33 @@ void perf_evlist__delete(struct perf_evlist *evlist)
         free(evlist);
 }
 
+static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
+                                          struct perf_evsel *evsel)
+{
+        /*
+         * We already have cpus for evsel (via PMU sysfs) so
+         * keep it, if there's no target cpu list defined.
+         */
+        if (!evsel->own_cpus || evlist->has_user_cpus) {
+                cpu_map__put(evsel->cpus);
+                evsel->cpus = cpu_map__get(evlist->cpus);
+        } else if (evsel->cpus != evsel->own_cpus) {
+                cpu_map__put(evsel->cpus);
+                evsel->cpus = cpu_map__get(evsel->own_cpus);
+        }
+
+        thread_map__put(evsel->threads);
+        evsel->threads = thread_map__get(evlist->threads);
+}
+
+static void perf_evlist__propagate_maps(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel;
+
+        evlist__for_each(evlist, evsel)
+                __perf_evlist__propagate_maps(evlist, evsel);
+}
+
 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
 {
         entry->evlist = evlist;
@@ -133,18 +160,19 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
 
         if (!evlist->nr_entries++)
                 perf_evlist__set_id_pos(evlist);
+
+        __perf_evlist__propagate_maps(evlist, entry);
 }
 
 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
-                                   struct list_head *list,
-                                   int nr_entries)
+                                   struct list_head *list)
 {
-        bool set_id_pos = !evlist->nr_entries;
+        struct perf_evsel *evsel, *temp;
 
-        list_splice_tail(list, &evlist->entries);
-        evlist->nr_entries += nr_entries;
-        if (set_id_pos)
-                perf_evlist__set_id_pos(evlist);
+        __evlist__for_each_safe(list, temp, evsel) {
+                list_del_init(&evsel->node);
+                perf_evlist__add(evlist, evsel);
+        }
 }
 
 void __perf_evlist__set_leader(struct list_head *list)
@@ -210,7 +238,7 @@ static int perf_evlist__add_attrs(struct perf_evlist *evlist,
                 list_add_tail(&evsel->node, &head);
         }
 
-        perf_evlist__splice_list_tail(evlist, &head, nr_attrs);
+        perf_evlist__splice_list_tail(evlist, &head);
 
         return 0;
 
@@ -1103,71 +1131,56 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
         return perf_evlist__mmap_ex(evlist, pages, overwrite, 0, false);
 }
 
-static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
-                                       bool has_user_cpus)
-{
-        struct perf_evsel *evsel;
-
-        evlist__for_each(evlist, evsel) {
-                /*
-                 * We already have cpus for evsel (via PMU sysfs) so
-                 * keep it, if there's no target cpu list defined.
-                 */
-                if (evsel->cpus && has_user_cpus)
-                        cpu_map__put(evsel->cpus);
-
-                if (!evsel->cpus || has_user_cpus)
-                        evsel->cpus = cpu_map__get(evlist->cpus);
-
-                evsel->threads = thread_map__get(evlist->threads);
-
-                if ((evlist->cpus && !evsel->cpus) ||
-                    (evlist->threads && !evsel->threads))
-                        return -ENOMEM;
-        }
-
-        return 0;
-}
-
 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
 {
-        evlist->threads = thread_map__new_str(target->pid, target->tid,
-                                              target->uid);
+        struct cpu_map *cpus;
+        struct thread_map *threads;
+
+        threads = thread_map__new_str(target->pid, target->tid, target->uid);
 
-        if (evlist->threads == NULL)
+        if (!threads)
                 return -1;
 
         if (target__uses_dummy_map(target))
-                evlist->cpus = cpu_map__dummy_new();
+                cpus = cpu_map__dummy_new();
         else
-                evlist->cpus = cpu_map__new(target->cpu_list);
+                cpus = cpu_map__new(target->cpu_list);
 
-        if (evlist->cpus == NULL)
+        if (!cpus)
                 goto out_delete_threads;
 
-        return perf_evlist__propagate_maps(evlist, !!target->cpu_list);
+        evlist->has_user_cpus = !!target->cpu_list;
+
+        perf_evlist__set_maps(evlist, cpus, threads);
+
+        return 0;
 
 out_delete_threads:
-        thread_map__put(evlist->threads);
-        evlist->threads = NULL;
+        thread_map__put(threads);
         return -1;
 }
 
-int perf_evlist__set_maps(struct perf_evlist *evlist,
-                          struct cpu_map *cpus,
-                          struct thread_map *threads)
+void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
+                           struct thread_map *threads)
 {
-        if (evlist->cpus)
+        /*
+         * Allow for the possibility that one or another of the maps isn't being
+         * changed i.e. don't put it.  Note we are assuming the maps that are
+         * being applied are brand new and evlist is taking ownership of the
+         * original reference count of 1.  If that is not the case it is up to
+         * the caller to increase the reference count.
+         */
+        if (cpus != evlist->cpus) {
                 cpu_map__put(evlist->cpus);
+                evlist->cpus = cpus;
+        }
 
-        evlist->cpus = cpus;
-
-        if (evlist->threads)
+        if (threads != evlist->threads) {
                 thread_map__put(evlist->threads);
+                evlist->threads = threads;
+        }
 
-        evlist->threads = threads;
-
-        return perf_evlist__propagate_maps(evlist, false);
+        perf_evlist__propagate_maps(evlist);
 }
 
 int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
@@ -1387,6 +1400,8 @@ void perf_evlist__close(struct perf_evlist *evlist)
 
 static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
 {
+        struct cpu_map    *cpus;
+        struct thread_map *threads;
         int err = -ENOMEM;
 
         /*
@@ -1398,20 +1413,19 @@ static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
          * error, and we may not want to do that fallback to a
          * default cpu identity map :-\
          */
-        evlist->cpus = cpu_map__new(NULL);
-        if (evlist->cpus == NULL)
+        cpus = cpu_map__new(NULL);
+        if (!cpus)
                 goto out;
 
-        evlist->threads = thread_map__new_dummy();
-        if (evlist->threads == NULL)
-                goto out_free_cpus;
+        threads = thread_map__new_dummy();
+        if (!threads)
+                goto out_put;
 
-        err = 0;
+        perf_evlist__set_maps(evlist, cpus, threads);
 out:
         return err;
-out_free_cpus:
-        cpu_map__put(evlist->cpus);
-        evlist->cpus = NULL;
+out_put:
+        cpu_map__put(cpus);
         goto out;
 }
 
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index b39a6198f4ac..115d8b53c601 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -42,6 +42,7 @@ struct perf_evlist {
         int              nr_mmaps;
         bool             overwrite;
         bool             enabled;
+        bool             has_user_cpus;
         size_t           mmap_len;
         int              id_pos;
         int              is_pos;
@@ -155,9 +156,8 @@ int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
 void perf_evlist__set_selected(struct perf_evlist *evlist,
                                struct perf_evsel *evsel);
 
-int perf_evlist__set_maps(struct perf_evlist *evlist,
-                          struct cpu_map *cpus,
-                          struct thread_map *threads);
+void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
+                           struct thread_map *threads);
 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
 int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
 
@@ -179,8 +179,7 @@ bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
 
 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
-                                   struct list_head *list,
-                                   int nr_entries);
+                                   struct list_head *list);
 
 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
 {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index c53f79123b37..5410483d5219 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1033,6 +1033,7 @@ void perf_evsel__exit(struct perf_evsel *evsel)
         perf_evsel__free_config_terms(evsel);
         close_cgroup(evsel->cgrp);
         cpu_map__put(evsel->cpus);
+        cpu_map__put(evsel->own_cpus);
         thread_map__put(evsel->threads);
         zfree(&evsel->group_name);
         zfree(&evsel->name);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 298e6bbca200..ef8925f7211a 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -98,6 +98,7 @@ struct perf_evsel {
         struct cgroup_sel       *cgrp;
         void                    *handler;
         struct cpu_map          *cpus;
+        struct cpu_map          *own_cpus;
         struct thread_map       *threads;
         unsigned int            sample_size;
         int                     id_pos;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 41814547da15..fce6634aebe2 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1438,7 +1438,7 @@ static int process_nrcpus(struct perf_file_section *section __maybe_unused,
         if (ph->needs_swap)
                 nr = bswap_32(nr);
 
-        ph->env.nr_cpus_online = nr;
+        ph->env.nr_cpus_avail = nr;
 
         ret = readn(fd, &nr, sizeof(nr));
         if (ret != sizeof(nr))
@@ -1447,7 +1447,7 @@ static int process_nrcpus(struct perf_file_section *section __maybe_unused,
         if (ph->needs_swap)
                 nr = bswap_32(nr);
 
-        ph->env.nr_cpus_avail = nr;
+        ph->env.nr_cpus_online = nr;
         return 0;
 }
 
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
index ea768625ab5b..eb0e7f8bf515 100644
--- a/tools/perf/util/intel-bts.c
+++ b/tools/perf/util/intel-bts.c
@@ -623,7 +623,7 @@ static int intel_bts_process_event(struct perf_session *session,
         if (err)
                 return err;
         if (event->header.type == PERF_RECORD_EXIT) {
-                err = intel_bts_process_tid_exit(bts, event->comm.tid);
+                err = intel_bts_process_tid_exit(bts, event->fork.tid);
                 if (err)
                         return err;
         }
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index bb41c20e6005..535d86f8e4d1 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1494,7 +1494,7 @@ static int intel_pt_process_event(struct perf_session *session,
         if (pt->timeless_decoding) {
                 if (event->header.type == PERF_RECORD_EXIT) {
                         err = intel_pt_process_timeless_queues(pt,
-                                                               event->comm.tid,
+                                                               event->fork.tid,
                                                                sample->time);
                 }
         } else if (timestamp) {
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d826e6f515db..21ed6ee63da9 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -287,8 +287,8 @@ __add_event(struct list_head *list, int *idx,
         if (!evsel)
                 return NULL;
 
-        if (cpus)
-                evsel->cpus = cpu_map__get(cpus);
+        evsel->cpus     = cpu_map__get(cpus);
+        evsel->own_cpus = cpu_map__get(cpus);
 
         if (name)
                 evsel->name = strdup(name);
@@ -1140,10 +1140,9 @@ int parse_events(struct perf_evlist *evlist, const char *str,
         ret = parse_events__scanner(str, &data, PE_START_EVENTS);
         perf_pmu__parse_cleanup();
         if (!ret) {
-                int entries = data.idx - evlist->nr_entries;
                 struct perf_evsel *last;
 
-                perf_evlist__splice_list_tail(evlist, &data.list, entries);
+                perf_evlist__splice_list_tail(evlist, &data.list);
                 evlist->nr_groups += data.nr_groups;
                 last = perf_evlist__last(evlist);
                 last->cmdline_group_boundary = true;
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 591905a02b92..9cd70819c795 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -255,7 +255,7 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
         list_add_tail(&term->list, head);
 
         ALLOC_LIST(list);
-        ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head));
+        ABORT_ON(parse_events_add_pmu(data, list, "cpu", head));
         parse_events__free_terms(head);
         $$ = list;
 }
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 89b05e2222c9..cfe121353eec 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -16,12 +16,12 @@ TARGETS += powerpc
 TARGETS += ptrace
 TARGETS += seccomp
 TARGETS += size
+TARGETS += static_keys
 TARGETS += sysctl
 ifneq (1, $(quicktest))
 TARGETS += timers
 endif
 TARGETS += user
-TARGETS += jumplabel
 TARGETS += vm
 TARGETS += x86
 TARGETS += zram
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 6b76bfdc847e..4e400eb83657 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,6 +1,6 @@
 CFLAGS = -Wall
 BINARIES = execveat
-DEPS = execveat.symlink execveat.denatured script
+DEPS = execveat.symlink execveat.denatured script subdir
 all: $(BINARIES) $(DEPS)
 
 subdir:
@@ -22,7 +22,5 @@ TEST_FILES := $(DEPS)
 
 include ../lib.mk
 
-override EMIT_TESTS := echo "mkdir -p subdir; (./execveat && echo \"selftests: execveat [PASS]\") || echo \"selftests: execveat [FAIL]\""
-
 clean:
         rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*
diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
index 0acbeca47225..4e6ed13e7f66 100644
--- a/tools/testing/selftests/ftrace/Makefile
+++ b/tools/testing/selftests/ftrace/Makefile
@@ -1,7 +1,7 @@
 all:
 
 TEST_PROGS := ftracetest
-TEST_DIRS := test.d/
+TEST_DIRS := test.d
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 97f1c6742066..50a93f5f13d6 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -12,13 +12,10 @@ run_tests: all
         $(RUN_TESTS)
 
 define INSTALL_RULE
-        @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then                        \
-                mkdir -p $(INSTALL_PATH);                                                               \
-                for TEST_DIR in $(TEST_DIRS); do                                                        \
-                        cp -r $$TEST_DIR $(INSTALL_PATH);                                               \
-                done;                                                                                   \
-                echo "install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)";   \
-                install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES);          \
+        @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then                                        \
+                mkdir -p ${INSTALL_PATH};                                                                               \
+                echo "rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";       \
+                rsync -a $(TEST_DIRS) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;              \
         fi
 endef
 
diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index 0e3b41eb85cd..eebac29acbd9 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,8 +1,8 @@
-CFLAGS = -O2
+CFLAGS += -O2
+LDLIBS = -lrt -lpthread -lpopt
+TEST_PROGS := mq_open_tests mq_perf_tests
 
-all:
-        $(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
-        $(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+all: $(TEST_PROGS)
 
 include ../lib.mk
 
@@ -11,8 +11,6 @@ override define RUN_TESTS
         @./mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
 endef
 
-TEST_PROGS := mq_open_tests mq_perf_tests
-
 override define EMIT_TESTS
         echo "./mq_open_tests /test1 || echo \"selftests: mq_open_tests [FAIL]\""
         echo "./mq_perf_tests || echo \"selftests: mq_perf_tests [FAIL]\""
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index a004b4cce99e..770f47adf295 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1210,6 +1210,10 @@ TEST_F(TRACE_poke, getpid_runs_normally)
 # define ARCH_REGS      struct pt_regs
 # define SYSCALL_NUM    gpr[0]
 # define SYSCALL_RET    gpr[3]
+#elif defined(__s390__)
+# define ARCH_REGS     s390_regs
+# define SYSCALL_NUM   gprs[2]
+# define SYSCALL_RET   gprs[2]
 #else
 # error "Do not know how to find your architecture's registers and syscalls"
 #endif
@@ -1243,7 +1247,8 @@ void change_syscall(struct __test_metadata *_metadata,
         ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov);
         EXPECT_EQ(0, ret);
 
-#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__) || defined(__powerpc__)
+#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__) || \
+    defined(__powerpc__) || defined(__s390__)
         {
                 regs.SYSCALL_NUM = syscall;
         }
@@ -1281,17 +1286,21 @@ void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,
         ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);
         EXPECT_EQ(0, ret);
 
+        /* Validate and take action on expected syscalls. */
         switch (msg) {
         case 0x1002:
                 /* change getpid to getppid. */
+                EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));
                 change_syscall(_metadata, tracee, __NR_getppid);
                 break;
         case 0x1003:
                 /* skip gettid. */
+                EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));
                 change_syscall(_metadata, tracee, -1);
                 break;
         case 0x1004:
                 /* do nothing (allow getppid) */
+                EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));
                 break;
         default:
                 EXPECT_EQ(0, msg) {
@@ -1409,6 +1418,8 @@ TEST_F(TRACE_syscall, syscall_dropped)
 #  define __NR_seccomp 277
 # elif defined(__powerpc__)
 #  define __NR_seccomp 358
+# elif defined(__s390__)
+#  define __NR_seccomp 348
 # else
 #  warning "seccomp syscall number unknown for this architecture"
 #  define __NR_seccomp 0xffff
@@ -1453,6 +1464,9 @@ TEST(seccomp_syscall)
 
         /* Reject insane operation. */
         ret = seccomp(-1, 0, &prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         EXPECT_EQ(EINVAL, errno) {
                 TH_LOG("Did not reject crazy op value!");
         }
@@ -1501,6 +1515,9 @@ TEST(seccomp_syscall_mode_lock)
         }
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         EXPECT_EQ(0, ret) {
                 TH_LOG("Could not install filter!");
         }
@@ -1535,6 +1552,9 @@ TEST(TSYNC_first)
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
                       &prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         EXPECT_EQ(0, ret) {
                 TH_LOG("Could not install initial filter with TSYNC!");
         }
@@ -1694,6 +1714,9 @@ TEST_F(TSYNC, siblings_fail_prctl)
 
         /* Check prctl failure detection by requesting sib 0 diverge. */
         ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         ASSERT_EQ(0, ret) {
                 TH_LOG("setting filter failed");
         }
@@ -1731,6 +1754,9 @@ TEST_F(TSYNC, two_siblings_with_ancestor)
         }
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         ASSERT_EQ(0, ret) {
                 TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
         }
@@ -1805,6 +1831,9 @@ TEST_F(TSYNC, two_siblings_with_no_filter)
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
                       &self->apply_prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         ASSERT_EQ(0, ret) {
                 TH_LOG("Could install filter on all threads!");
         }
@@ -1833,6 +1862,9 @@ TEST_F(TSYNC, two_siblings_with_one_divergence)
         }
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         ASSERT_EQ(0, ret) {
                 TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
         }
@@ -1890,6 +1922,9 @@ TEST_F(TSYNC, two_siblings_not_under_filter)
         }
 
         ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+        ASSERT_NE(ENOSYS, errno) {
+                TH_LOG("Kernel does not support seccomp syscall!");
+        }
         ASSERT_EQ(0, ret) {
                 TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
         }
diff --git a/tools/testing/selftests/seccomp/test_harness.h b/tools/testing/selftests/seccomp/test_harness.h
index 977a6afc4489..fb2841601f2f 100644
--- a/tools/testing/selftests/seccomp/test_harness.h
+++ b/tools/testing/selftests/seccomp/test_harness.h
@@ -370,11 +370,8 @@
         __typeof__(_expected) __exp = (_expected); \
         __typeof__(_seen) __seen = (_seen); \
         if (!(__exp _t __seen)) { \
-                unsigned long long __exp_print = 0; \
-                unsigned long long __seen_print = 0; \
-                /* Avoid casting complaints the scariest way we can. */ \
-                memcpy(&__exp_print, &__exp, sizeof(__exp)); \
-                memcpy(&__seen_print, &__seen, sizeof(__seen)); \
+                unsigned long long __exp_print = (unsigned long long)__exp; \
+                unsigned long long __seen_print = (unsigned long long)__seen; \
                 __TH_LOG("Expected %s (%llu) %s %s (%llu)", \
                          #_expected, __exp_print, #_t, \
                          #_seen, __seen_print); \
diff --git a/tools/testing/selftests/x86/entry_from_vm86.c b/tools/testing/selftests/x86/entry_from_vm86.c
index 9a43a59a9bb4..421c607a8856 100644
--- a/tools/testing/selftests/x86/entry_from_vm86.c
+++ b/tools/testing/selftests/x86/entry_from_vm86.c
@@ -116,8 +116,9 @@ static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
         v86->regs.eip = eip;
         ret = vm86(VM86_ENTER, v86);
 
-        if (ret == -1 && errno == ENOSYS) {
-                printf("[SKIP]\tvm86 not supported\n");
+        if (ret == -1 && (errno == ENOSYS || errno == EPERM)) {
+                printf("[SKIP]\tvm86 %s\n",
+                       errno == ENOSYS ? "not supported" : "not allowed");
                 return false;
         }
 
diff --git a/tools/testing/selftests/zram/zram.sh b/tools/testing/selftests/zram/zram.sh
index 20de9a761269..683a292e3290 100755
--- a/tools/testing/selftests/zram/zram.sh
+++ b/tools/testing/selftests/zram/zram.sh
@@ -1,15 +1,7 @@
 #!/bin/bash
 TCID="zram.sh"
 
-check_prereqs()
-{
-        local msg="skip all tests:"
-
-        if [ $UID != 0 ]; then
-                echo $msg must be run as root >&2
-                exit 0
-        fi
-}
+. ./zram_lib.sh
 
 run_zram () {
 echo "--------------------"
diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index 424e68ed1487..f6a9c73e7a44 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -23,8 +23,9 @@ trap INT
 check_prereqs()
 {
         local msg="skip all tests:"
+        local uid=$(id -u)
 
-        if [ $UID != 0 ]; then
+        if [ $uid -ne 0 ]; then
                 echo $msg must be run as root >&2
                 exit 0
         fi
diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile
index 505ad51b3b51..39c89a5ea990 100644
--- a/tools/virtio/Makefile
+++ b/tools/virtio/Makefile
@@ -6,7 +6,7 @@ vringh_test: vringh_test.o vringh.o virtio_ring.o
 CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE
 vpath %.c ../../drivers/virtio ../../drivers/vhost
 mod:
-        ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test
+        ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}
 .PHONY: all test mod clean
 clean:
         ${RM} *.o vringh_test virtio_test vhost_test/*.o vhost_test/.*.cmd \
diff --git a/tools/virtio/asm/barrier.h b/tools/virtio/asm/barrier.h
index aff61e13306c..26b7926bda88 100644
--- a/tools/virtio/asm/barrier.h
+++ b/tools/virtio/asm/barrier.h
@@ -3,6 +3,8 @@
 #define mb() __sync_synchronize()
 
 #define smp_mb()        mb()
+# define dma_rmb()      barrier()
+# define dma_wmb()      barrier()
 # define smp_rmb()      barrier()
 # define smp_wmb()      barrier()
 /* Weak barriers should be used. If not - it's a bug */
diff --git a/tools/virtio/linux/export.h b/tools/virtio/linux/export.h
new file mode 100644
index 000000000000..416875e29254
--- /dev/null
+++ b/tools/virtio/linux/export.h
@@ -0,0 +1,3 @@
+#define EXPORT_SYMBOL_GPL(sym) extern typeof(sym) sym
+#define EXPORT_SYMBOL(sym) extern typeof(sym) sym
+
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index 1e8ce6979c1e..0a3da64638ce 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -22,6 +22,7 @@
 
 typedef unsigned long long dma_addr_t;
 typedef size_t __kernel_size_t;
+typedef unsigned int __wsum;
 
 struct page {
         unsigned long long dummy;
@@ -47,6 +48,13 @@ static inline void *kmalloc(size_t s, gfp_t gfp)
                 return __kmalloc_fake;
         return malloc(s);
 }
+static inline void *kzalloc(size_t s, gfp_t gfp)
+{
+        void *p = kmalloc(s, gfp);
+
+        memset(p, 0, s);
+        return p;
+}
 
 static inline void kfree(void *p)
 {
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 76e38d231e99..48c6e1ac6827 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -200,6 +200,14 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
         timer->irq = irq;
 
         /*
+         * The bits in CNTV_CTL are architecturally reset to UNKNOWN for ARMv8
+         * and to 0 for ARMv7.  We provide an implementation that always
+         * resets the timer to be disabled and unmasked and is compliant with
+         * the ARMv7 architecture.
+         */
+        timer->cntv_ctl = 0;
+
+        /*
          * Tell the VGIC that the virtual interrupt is tied to a
          * physical interrupt. We do that once per VCPU.
          */
diff --git a/virt/kvm/arm/vgic-v3.c b/virt/kvm/arm/vgic-v3.c
index afbf925b00f4..7dd5d62f10a1 100644
--- a/virt/kvm/arm/vgic-v3.c
+++ b/virt/kvm/arm/vgic-v3.c
@@ -288,7 +288,7 @@ int vgic_v3_probe(struct device_node *vgic_node,
 
         vgic->vctrl_base = NULL;
         vgic->type = VGIC_V3;
-        vgic->max_gic_vcpus = KVM_MAX_VCPUS;
+        vgic->max_gic_vcpus = VGIC_V3_MAX_CPUS;
 
         kvm_info("%s@%llx IRQ%d\n", vgic_node->name,
                  vcpu_res.start, vgic->maint_irq);
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 9eb489a2c94c..6bd1c9bf7ae7 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1144,26 +1144,11 @@ static void vgic_queue_irq_to_lr(struct kvm_vcpu *vcpu, int irq,
                 struct irq_phys_map *map;
                 map = vgic_irq_map_search(vcpu, irq);
 
-                /*
-                 * If we have a mapping, and the virtual interrupt is
-                 * being injected, then we must set the state to
-                 * active in the physical world. Otherwise the
-                 * physical interrupt will fire and the guest will
-                 * exit before processing the virtual interrupt.
-                 */
                 if (map) {
-                        int ret;
-
-                        BUG_ON(!map->active);
                         vlr.hwirq = map->phys_irq;
                         vlr.state |= LR_HW;
                         vlr.state &= ~LR_EOI_INT;
 
-                        ret = irq_set_irqchip_state(map->irq,
-                                                    IRQCHIP_STATE_ACTIVE,
-                                                    true);
-                        WARN_ON(ret);
-
                         /*
                          * Make sure we're not going to sample this
                          * again, as a HW-backed interrupt cannot be
@@ -1255,7 +1240,7 @@ static void __kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu)
         struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
         struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
         unsigned long *pa_percpu, *pa_shared;
-        int i, vcpu_id;
+        int i, vcpu_id, lr, ret;
         int overflow = 0;
         int nr_shared = vgic_nr_shared_irqs(dist);
 
@@ -1310,6 +1295,31 @@ epilog:
                  */
                 clear_bit(vcpu_id, dist->irq_pending_on_cpu);
         }
+
+        for (lr = 0; lr < vgic->nr_lr; lr++) {
+                struct vgic_lr vlr;
+
+                if (!test_bit(lr, vgic_cpu->lr_used))
+                        continue;
+
+                vlr = vgic_get_lr(vcpu, lr);
+
+                /*
+                 * If we have a mapping, and the virtual interrupt is
+                 * presented to the guest (as pending or active), then we must
+                 * set the state to active in the physical world. See
+                 * Documentation/virtual/kvm/arm/vgic-mapped-irqs.txt.
+                 */
+                if (vlr.state & LR_HW) {
+                        struct irq_phys_map *map;
+                        map = vgic_irq_map_search(vcpu, vlr.irq);
+
+                        ret = irq_set_irqchip_state(map->irq,
+                                                    IRQCHIP_STATE_ACTIVE,
+                                                    true);
+                        WARN_ON(ret);
+                }
+        }
 }
 
 static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
diff --git a/virt/kvm/coalesced_mmio.h b/virt/kvm/coalesced_mmio.h
index 5cbf190d238c..6bca74ca5331 100644
--- a/virt/kvm/coalesced_mmio.h
+++ b/virt/kvm/coalesced_mmio.h
@@ -24,9 +24,9 @@ struct kvm_coalesced_mmio_dev {
 int kvm_coalesced_mmio_init(struct kvm *kvm);
 void kvm_coalesced_mmio_free(struct kvm *kvm);
 int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
-                                                                                                                                                                struct kvm_coalesced_mmio_zone *zone);
+                                        struct kvm_coalesced_mmio_zone *zone);
 int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
-                                                                                                                                                                struct kvm_coalesced_mmio_zone *zone);
+                                        struct kvm_coalesced_mmio_zone *zone);
 
 #else
 
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 9ff4193dfa49..79db45336e3a 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -771,40 +771,14 @@ static enum kvm_bus ioeventfd_bus_from_flags(__u32 flags)
         return KVM_MMIO_BUS;
 }
 
-static int
-kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
+static int kvm_assign_ioeventfd_idx(struct kvm *kvm,
+                                enum kvm_bus bus_idx,
+                                struct kvm_ioeventfd *args)
 {
-        enum kvm_bus              bus_idx;
-        struct _ioeventfd        *p;
-        struct eventfd_ctx       *eventfd;
-        int                       ret;
-
-        bus_idx = ioeventfd_bus_from_flags(args->flags);
-        /* must be natural-word sized, or 0 to ignore length */
-        switch (args->len) {
-        case 0:
-        case 1:
-        case 2:
-        case 4:
-        case 8:
-                break;
-        default:
-                return -EINVAL;
-        }
-
-        /* check for range overflow */
-        if (args->addr + args->len < args->addr)
-                return -EINVAL;
 
-        /* check for extra flags that we don't understand */
-        if (args->flags & ~KVM_IOEVENTFD_VALID_FLAG_MASK)
-                return -EINVAL;
-
-        /* ioeventfd with no length can't be combined with DATAMATCH */
-        if (!args->len &&
-            args->flags & (KVM_IOEVENTFD_FLAG_PIO |
-                           KVM_IOEVENTFD_FLAG_DATAMATCH))
-                return -EINVAL;
+        struct eventfd_ctx *eventfd;
+        struct _ioeventfd *p;
+        int ret;
 
         eventfd = eventfd_ctx_fdget(args->fd);
         if (IS_ERR(eventfd))
@@ -843,16 +817,6 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
         if (ret < 0)
                 goto unlock_fail;
 
-        /* When length is ignored, MMIO is also put on a separate bus, for
-         * faster lookups.
-         */
-        if (!args->len && !(args->flags & KVM_IOEVENTFD_FLAG_PIO)) {
-                ret = kvm_io_bus_register_dev(kvm, KVM_FAST_MMIO_BUS,
-                                              p->addr, 0, &p->dev);
-                if (ret < 0)
-                        goto register_fail;
-        }
-
         kvm->buses[bus_idx]->ioeventfd_count++;
         list_add_tail(&p->list, &kvm->ioeventfds);
 
@@ -860,8 +824,6 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 
         return 0;
 
-register_fail:
-        kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
 unlock_fail:
         mutex_unlock(&kvm->slots_lock);
 
@@ -873,14 +835,13 @@ fail:
 }
 
 static int
-kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
+kvm_deassign_ioeventfd_idx(struct kvm *kvm, enum kvm_bus bus_idx,
+                           struct kvm_ioeventfd *args)
 {
-        enum kvm_bus              bus_idx;
         struct _ioeventfd        *p, *tmp;
         struct eventfd_ctx       *eventfd;
         int                       ret = -ENOENT;
 
-        bus_idx = ioeventfd_bus_from_flags(args->flags);
         eventfd = eventfd_ctx_fdget(args->fd);
         if (IS_ERR(eventfd))
                 return PTR_ERR(eventfd);
@@ -901,10 +862,6 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
                         continue;
 
                 kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
-                if (!p->length) {
-                        kvm_io_bus_unregister_dev(kvm, KVM_FAST_MMIO_BUS,
-                                                  &p->dev);
-                }
                 kvm->buses[bus_idx]->ioeventfd_count--;
                 ioeventfd_release(p);
                 ret = 0;
@@ -918,6 +875,71 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
         return ret;
 }
 
+static int kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
+{
+        enum kvm_bus bus_idx = ioeventfd_bus_from_flags(args->flags);
+        int ret = kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);
+
+        if (!args->len && bus_idx == KVM_MMIO_BUS)
+                kvm_deassign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);
+
+        return ret;
+}
+
+static int
+kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
+{
+        enum kvm_bus              bus_idx;
+        int ret;
+
+        bus_idx = ioeventfd_bus_from_flags(args->flags);
+        /* must be natural-word sized, or 0 to ignore length */
+        switch (args->len) {
+        case 0:
+        case 1:
+        case 2:
+        case 4:
+        case 8:
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* check for range overflow */
+        if (args->addr + args->len < args->addr)
+                return -EINVAL;
+
+        /* check for extra flags that we don't understand */
+        if (args->flags & ~KVM_IOEVENTFD_VALID_FLAG_MASK)
+                return -EINVAL;
+
+        /* ioeventfd with no length can't be combined with DATAMATCH */
+        if (!args->len &&
+            args->flags & (KVM_IOEVENTFD_FLAG_PIO |
+                           KVM_IOEVENTFD_FLAG_DATAMATCH))
+                return -EINVAL;
+
+        ret = kvm_assign_ioeventfd_idx(kvm, bus_idx, args);
+        if (ret)
+                goto fail;
+
+        /* When length is ignored, MMIO is also put on a separate bus, for
+         * faster lookups.
+         */
+        if (!args->len && bus_idx == KVM_MMIO_BUS) {
+                ret = kvm_assign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);
+                if (ret < 0)
+                        goto fast_fail;
+        }
+
+        return 0;
+
+fast_fail:
+        kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);
+fail:
+        return ret;
+}
+
 int
 kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 {
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a25a73147f71..04146a2e1d81 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2004,6 +2004,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
         if (vcpu->halt_poll_ns) {
                 ktime_t stop = ktime_add_ns(ktime_get(), vcpu->halt_poll_ns);
 
+                ++vcpu->stat.halt_attempted_poll;
                 do {
                         /*
                          * This sets KVM_REQ_UNHALT if an interrupt
@@ -2043,7 +2044,8 @@ out:
                 else if (vcpu->halt_poll_ns < halt_poll_ns &&
                         block_ns < halt_poll_ns)
                         grow_halt_poll_ns(vcpu);
-        }
+        } else
+                vcpu->halt_poll_ns = 0;
 
         trace_kvm_vcpu_wakeup(block_ns, waited);
 }
@@ -3156,10 +3158,25 @@ static void kvm_io_bus_destroy(struct kvm_io_bus *bus)
 static inline int kvm_io_bus_cmp(const struct kvm_io_range *r1,
                                  const struct kvm_io_range *r2)
 {
-        if (r1->addr < r2->addr)
+        gpa_t addr1 = r1->addr;
+        gpa_t addr2 = r2->addr;
+
+        if (addr1 < addr2)
                 return -1;
-        if (r1->addr + r1->len > r2->addr + r2->len)
+
+        /* If r2->len == 0, match the exact address.  If r2->len != 0,
+         * accept any overlapping write.  Any order is acceptable for
+         * overlapping ranges, because kvm_io_bus_get_first_dev ensures
+         * we process all of them.
+         */
+        if (r2->len) {
+                addr1 += r1->len;
+                addr2 += r2->len;
+        }
+
+        if (addr1 > addr2)
                 return 1;
+
         return 0;
 }