16 files changed, 55 insertions, 38 deletions

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index fcb7604172ce..cd20ca0b4043 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -348,6 +348,7 @@ config X86_DEBUG_FPU
 
 config PUNIT_ATOM_DEBUG
         tristate "ATOM Punit debug driver"
+        depends on PCI
         select DEBUG_FS
         select IOSF_MBI
         ---help---
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 0d810fb15eac..d88a2fddba8c 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -73,12 +73,13 @@ UBSAN_SANITIZE := n
 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
 
 quiet_cmd_image = BUILD   $@
+silent_redirect_image = >/dev/null
 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
-                               $(obj)/zoffset.h $@
+                               $(obj)/zoffset.h $@ $($(quiet)redirect_image)
 
 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
         $(call if_changed,image)
-        @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+        @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 6cf79e1a6830..0eb9f92f3717 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_64BIT is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -125,7 +124,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
 CONFIG_NF_NAT=y
 CONFIG_IP_NF_TARGET_MASQUERADE=y
 CONFIG_IP_NF_MANGLE=y
@@ -255,7 +253,6 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
 CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_EDAC=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index de45f57b410d..4a4b16e56d35 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -124,7 +123,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
 CONFIG_NF_NAT=y
 CONFIG_IP_NF_TARGET_MASQUERADE=y
 CONFIG_IP_NF_MANGLE=y
@@ -251,7 +249,6 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
 CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_EDAC=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index ff1ea2fb9705..8e3db8f642a7 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -191,8 +191,8 @@ static void release_pmc_hardware(void) {}
 
 static bool check_hw_exists(void)
 {
-        u64 val, val_fail, val_new= ~0;
-        int i, reg, reg_fail, ret = 0;
+        u64 val, val_fail = -1, val_new= ~0;
+        int i, reg, reg_fail = -1, ret = 0;
         int bios_fail = 0;
         int reg_safe = -1;
 
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 7afb0e2f07f4..48febf07e828 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -328,13 +328,13 @@ static inline unsigned type in##bwl##_p(int port)			\
 static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 {                                                                       \
         asm volatile("rep; outs" #bwl                                   \
-                     : "+S"(addr), "+c"(count) : "d"(port));            \
+                     : "+S"(addr), "+c"(count) : "d"(port) : "memory"); \
 }                                                                       \
                                                                         \
 static inline void ins##bwl(int port, void *addr, unsigned long count)  \
 {                                                                       \
         asm volatile("rep; ins" #bwl                                    \
-                     : "+D"(addr), "+c"(count) : "d"(port));            \
+                     : "+D"(addr), "+c"(count) : "d"(port) : "memory"); \
 }
 
 BUILDIO(b, b, char)
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index ecfcb6643c9b..265c907d7d4c 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -293,7 +293,7 @@ static inline unsigned long __get_current_cr3_fast(void)
         unsigned long cr3 = __pa(this_cpu_read(cpu_tlbstate.loaded_mm)->pgd);
 
         /* For now, be very restrictive about when this can be called. */
-        VM_WARN_ON(in_nmi() || !in_atomic());
+        VM_WARN_ON(in_nmi() || preemptible());
 
         VM_BUG_ON(cr3 != __read_cr3());
         return cr3;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 6bb680671088..7491e73d9253 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -347,6 +347,14 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
         struct mpc_intsrc mp_irq;
 
         /*
+         * Check bus_irq boundary.
+         */
+        if (bus_irq >= NR_IRQS_LEGACY) {
+                pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+                return;
+        }
+
+        /*
          * Convert 'gsi' to 'ioapic.pin'.
          */
         ioapic = mp_find_ioapic(gsi);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index b4f5f73febdb..237e9c2341c7 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2093,7 +2093,7 @@ static inline void __init check_timer(void)
                         int idx;
                         idx = find_irq_entry(apic1, pin1, mp_INT);
                         if (idx != -1 && irq_trigger(idx))
-                                unmask_ioapic_irq(irq_get_chip_data(0));
+                                unmask_ioapic_irq(irq_get_irq_data(0));
                 }
                 irq_domain_deactivate_irq(irq_data);
                 irq_domain_activate_irq(irq_data);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index bb5abe8f5fd4..3b9e220621f8 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -134,6 +134,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
 
                 n = K6_BUG_LOOP;
                 f_vide = vide;
+                OPTIMIZER_HIDE_VAR(f_vide);