107 files changed, 873 insertions, 568 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 56a4df952fb0..22e58a99f38b 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -477,7 +477,7 @@ config ALPHA_BROKEN_IRQ_MASK
 config VGA_HOSE
        bool
-        depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
+        depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
        default y
        help
          Support VGA on an arbitrary hose; needed for several platforms
diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h
index 1f7fba671ae6..d70408d36677 100644
--- a/arch/alpha/include/asm/rtc.h
+++ b/arch/alpha/include/asm/rtc.h
@@ -1,14 +1,10 @@
 #ifndef _ALPHA_RTC_H
 #define _ALPHA_RTC_H
-#if defined(CONFIG_ALPHA_GENERIC)
+#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \
+ || defined(CONFIG_ALPHA_GENERIC)
 # define get_rtc_time           alpha_mv.rtc_get_time
 # define set_rtc_time           alpha_mv.rtc_set_time
-#else
-# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP)
-#  define get_rtc_time          marvel_get_rtc_time
-#  define set_rtc_time          marvel_set_rtc_time
-# endif
 #endif
 #include <asm-generic/rtc.h>
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index 5e7c28f92f19..61893d7bdda5 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -11,6 +11,7 @@
 #include <asm/core_tsunami.h>
 #undef __EXTERN_INLINE
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/sched.h>
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 14a4b6a7cf59..407accc80877 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -317,7 +317,7 @@ marvel_init_irq(void)
 }
 static int 
-marvel_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 {
        struct pci_controller *hose = dev->sysdata;
        struct io7_port *io7_port = hose->sysdata;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cf006d40342c..36586dba6fa6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1186,6 +1186,15 @@ if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
+config ARM_ERRATA_326103
+        bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
+        depends on CPU_V6
+        help
+          Executing a SWP instruction to read-only memory does not set bit 11
+          of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
+          treat the access as a read, preventing a COW from occurring and
+          causing the faulting task to livelock.
 config ARM_ERRATA_411920
        bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
        depends on CPU_V6 || CPU_V6K
diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts
index 15ded0deaa79..45bc4bb04e57 100644
--- a/arch/arm/boot/dts/msm8660-surf.dts
+++ b/arch/arm/boot/dts/msm8660-surf.dts
@@ -10,7 +10,7 @@
        intc: interrupt-controller@02080000 {
                compatible = "qcom,msm-8660-qgic";
                interrupt-controller;
-                #interrupt-cells = <1>;
+                #interrupt-cells = <3>;
                reg = < 0x02080000 0x1000 >,
                      < 0x02081000 0x1000 >;
        };
@@ -19,6 +19,6 @@
                compatible = "qcom,msm-hsuart", "qcom,msm-uart";
                reg = <0x19c40000 0x1000>,
                      <0x19c00000 0x1000>;
-                interrupts = <195>;
+                interrupts = <0 195 0x0>;
        };
 };
diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 0b32925f2147..e2fe3195c0d1 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -173,7 +173,7 @@
                        mmc@5000 {
                                compatible = "arm,primecell";
                                reg = < 0x5000 0x1000>;
-                                interrupts = <22>;
+                                interrupts = <22 34>;
                        };
                        kmi@6000 {
                                compatible = "arm,pl050", "arm,primecell";
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 166461073b78..7e8175269064 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -41,7 +41,7 @@
                        mmc@b000 {
                                compatible = "arm,primecell";
                                reg = <0xb000 0x1000>;
-                                interrupts = <23>;
+                                interrupts = <23 34>;
                        };
                };
        };
diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index 42da9183acc8..082175c54e7c 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -14,6 +14,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_BLK_DEV_INTEGRITY=y
 CONFIG_ARCH_S3C24XX=y
+# CONFIG_CPU_S3C2410 is not set
+CONFIG_CPU_S3C2440=y
 CONFIG_S3C_ADC=y
 CONFIG_S3C24XX_PWM=y
 CONFIG_MACH_MINI2440=y
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index d4c24d412a8d..0f04d84582e1 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -118,6 +118,13 @@ extern void iwmmxt_task_switch(struct thread_info *);
 extern void vfp_sync_hwstate(struct thread_info *);
 extern void vfp_flush_hwstate(struct thread_info *);
+struct user_vfp;
+struct user_vfp_exc;
+extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *,
+                                           struct user_vfp_exc __user *);
+extern int vfp_restore_user_hwstate(struct user_vfp __user *,
+                                    struct user_vfp_exc __user *);
 #endif
 /*
diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
index 60843eb0f61c..73409e6c0251 100644
--- a/arch/arm/include/asm/tls.h
+++ b/arch/arm/include/asm/tls.h
@@ -7,6 +7,8 @@
        .macro set_tls_v6k, tp, tmp1, tmp2
        mcr     p15, 0, \tp, c13, c0, 3         @ set TLS register
+        mov     \tmp1, #0
+        mcr     p15, 0, \tmp1, c13, c0, 2       @ clear user r/w TLS register
        .endm
        .macro set_tls_v6, tp, tmp1, tmp2
@@ -15,6 +17,8 @@
        mov     \tmp2, #0xffff0fff
        tst     \tmp1, #HWCAP_TLS               @ hardware TLS available?
        mcrne   p15, 0, \tp, c13, c0, 3         @ yes, set TLS register
+        movne   \tmp1, #0
+        mcrne   p15, 0, \tmp1, c13, c0, 2       @ clear user r/w TLS register
        streq   \tp, [\tmp2, #-15]              @ set TLS value at 0xffff0ff0
        .endm
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 71ccdbfed662..8349d4e97e2b 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -155,10 +155,10 @@ static bool migrate_one_irq(struct irq_desc *desc)
        }
        c = irq_data_get_irq_chip(d);
-        if (c->irq_set_affinity)
+        if (!c->irq_set_affinity)
-                c->irq_set_affinity(d, affinity, true);
-        else
                pr_debug("IRQ%u: unable to set affinity\n", d->irq);
+        else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret)
+                cpumask_copy(d->affinity, affinity);
        return ret;
 }
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 80abafb9bf33..9650c143afc1 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -906,27 +906,14 @@ long arch_ptrace(struct task_struct *child, long request,
        return ret;
 }
-#ifdef __ARMEB__
-#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB
-#else
-#define AUDIT_ARCH_NR AUDIT_ARCH_ARM
-#endif
 asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 {
        unsigned long ip;
-        /*
+        if (why)
-         * Save IP.  IP is used to denote syscall entry/exit:
-         *  IP = 0 -> entry, = 1 -> exit
-         */
-        ip = regs->ARM_ip;
-        regs->ARM_ip = why;
-        if (!ip)
                audit_syscall_exit(regs);
        else
-                audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0,
+                audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
                                    regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
        if (!test_thread_flag(TIF_SYSCALL_TRACE))
@@ -936,6 +923,13 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
        current_thread_info()->syscall = scno;
+        /*
+         * IP is used to denote syscall entry/exit:
+         * IP = 0 -> entry, =1 -> exit
+         */
+        ip = regs->ARM_ip;
+        regs->ARM_ip = why;
        /* the 0x80 provides a way for the tracing parent to distinguish
           between a syscall stop and SIGTRAP delivery */
        ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7cb532fc8aa4..d68d1b694680 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -180,44 +180,23 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 static int preserve_vfp_context(struct vfp_sigframe __user *frame)
 {
-        struct thread_info *thread = current_thread_info();
-        struct vfp_hard_struct *h = &thread->vfpstate.hard;
        const unsigned long magic = VFP_MAGIC;
        const unsigned long size = VFP_STORAGE_SIZE;
        int err = 0;
-        vfp_sync_hwstate(thread);
        __put_user_error(magic, &frame->magic, err);
        __put_user_error(size, &frame->size, err);
-        /*
+        if (err)
-         * Copy the floating point registers. There can be unused
+                return -EFAULT;
-         * registers see asm/hwcap.h for details.
-         */
-        err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
-                              sizeof(h->fpregs));
-        /*
-         * Copy the status and control register.
-         */
-        __put_user_error(h->fpscr, &frame->ufp.fpscr, err);
-        /*
-         * Copy the exception registers.
-         */
-        __put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err);
-        __put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
-        __put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
-        return err ? -EFAULT : 0;
+        return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
 }
 static int restore_vfp_context(struct vfp_sigframe __user *frame)
 {
-        struct thread_info *thread = current_thread_info();
-        struct vfp_hard_struct *h = &thread->vfpstate.hard;
        unsigned long magic;
        unsigned long size;
-        unsigned long fpexc;
        int err = 0;
        __get_user_error(magic, &frame->magic, err);
@@ -228,33 +207,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
        if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
                return -EINVAL;
-        vfp_flush_hwstate(thread);
+        return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc);
-        /*
-         * Copy the floating point registers. There can be unused
-         * registers see asm/hwcap.h for details.
-         */
-        err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
-                                sizeof(h->fpregs));
-        /*
-         * Copy the status and control register.
-         */
-        __get_user_error(h->fpscr, &frame->ufp.fpscr, err);
-        /*
-         * Sanitise and restore the exception registers.
-         */
-        __get_user_error(fpexc, &frame->ufp_exc.fpexc, err);
-        /* Ensure the VFP is enabled. */
-        fpexc |= FPEXC_EN;
-        /* Ensure FPINST2 is invalid and the exception flag is cleared. */
-        fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
-        h->fpexc = fpexc;
-        __get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
-        __get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
-        return err ? -EFAULT : 0;
 }
 #endif
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index addbbe8028c2..8f4644659777 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -251,8 +251,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
        struct mm_struct *mm = &init_mm;
        unsigned int cpu = smp_processor_id();
-        printk("CPU%u: Booted secondary processor\n", cpu);
        /*
         * All kernel threads share the same mm context; grab a
         * reference and switch to it.
@@ -264,6 +262,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
        enter_lazy_tlb(mm, current);
        local_flush_tlb_all();
+        printk("CPU%u: Booted secondary processor\n", cpu);
        cpu_init();
        preempt_disable();
        trace_hardirqs_off();
@@ -510,10 +510,6 @@ static void ipi_cpu_stop(unsigned int cpu)
        local_fiq_disable();
        local_irq_disable();
-#ifdef CONFIG_HOTPLUG_CPU
-        platform_cpu_kill(cpu);
-#endif
        while (1)
                cpu_relax();
 }
@@ -576,17 +572,25 @@ void smp_send_reschedule(int cpu)
        smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
 }
+#ifdef CONFIG_HOTPLUG_CPU
+static void smp_kill_cpus(cpumask_t *mask)
+{
+        unsigned int cpu;
+        for_each_cpu(cpu, mask)
+                platform_cpu_kill(cpu);
+}
+#else
+static void smp_kill_cpus(cpumask_t *mask) { }
+#endif
 void smp_send_stop(void)
 {
        unsigned long timeout;
+        struct cpumask mask;
-        if (num_online_cpus() > 1) {
+        cpumask_copy(&mask, cpu_online_mask);
-                struct cpumask mask;
+        cpumask_clear_cpu(smp_processor_id(), &mask);
-                cpumask_copy(&mask, cpu_online_mask);
+        smp_cross_call(&mask, IPI_CPU_STOP);
-                cpumask_clear_cpu(smp_processor_id(), &mask);
-                smp_cross_call(&mask, IPI_CPU_STOP);
-        }
        /* Wait up to one second for other CPUs to stop */
        timeout = USEC_PER_SEC;
@@ -595,6 +599,8 @@ void smp_send_stop(void)
        if (num_online_cpus() > 1)
                pr_warning("SMP: failed to stop secondary CPUs\n");
+        smp_kill_cpus(&mask);
 }
 /*
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index d2b177905cdb..76cbb055dd05 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -115,7 +115,7 @@ int kernel_execve(const char *filename,
                  "Ir" (THREAD_START_SP - sizeof(regs)),
                  "r" (&regs),
                  "Ir" (sizeof(regs))
-                : "r0", "r1", "r2", "r3", "ip", "lr", "memory");
+                : "r0", "r1", "r2", "r3", "r8", "r9", "ip", "lr", "memory");
 out:
        return ret;
diff --git a/arch/arm/mach-exynos/clock-exynos4.c b/arch/arm/mach-exynos/clock-exynos4.c
index df54c2a92225..6efd1e5919fd 100644
--- a/arch/arm/mach-exynos/clock-exynos4.c
+++ b/arch/arm/mach-exynos/clock-exynos4.c
@@ -497,25 +497,25 @@ static struct clk exynos4_init_clocks_off[] = {
                .ctrlbit        = (1 << 3),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                .parent         = &exynos4_clk_aclk_133.clk,
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 5),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                .parent         = &exynos4_clk_aclk_133.clk,
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 6),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                .parent         = &exynos4_clk_aclk_133.clk,
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 7),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                .parent         = &exynos4_clk_aclk_133.clk,
                .enable         = exynos4_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 8),
@@ -1202,7 +1202,7 @@ static struct clksrc_clk exynos4_clk_sclk_uart3 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc0 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                .parent         = &exynos4_clk_dout_mmc0.clk,
                .enable         = exynos4_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 0),
@@ -1213,7 +1213,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc0 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc1 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                .parent         = &exynos4_clk_dout_mmc1.clk,
                .enable         = exynos4_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 4),
@@ -1224,7 +1224,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc1 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc2 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                .parent         = &exynos4_clk_dout_mmc2.clk,
                .enable         = exynos4_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 8),
@@ -1235,7 +1235,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc2 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc3 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                .parent         = &exynos4_clk_dout_mmc3.clk,
                .enable         = exynos4_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 12),
@@ -1340,10 +1340,10 @@ static struct clk_lookup exynos4_clk_lookup[] = {
        CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos4_clk_sclk_uart1.clk),
        CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos4_clk_sclk_uart2.clk),
        CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos4_clk_sclk_uart3.clk),
-        CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk),
+        CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk),
-        CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk),
+        CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk),
-        CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk),
+        CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk),
-        CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk),
+        CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk),
        CLKDEV_INIT("exynos4-fb.0", "lcd", &exynos4_clk_fimd0),
        CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos4_clk_pdma0),
        CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos4_clk_pdma1),
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index d013982d0f8e..5cd7a8b8868c 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -455,25 +455,25 @@ static struct clk exynos5_init_clocks_off[] = {
                .ctrlbit        = (1 << 20),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                .parent         = &exynos5_clk_aclk_200.clk,
                .enable         = exynos5_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 12),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                .parent         = &exynos5_clk_aclk_200.clk,
                .enable         = exynos5_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 13),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                .parent         = &exynos5_clk_aclk_200.clk,
                .enable         = exynos5_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 14),
        }, {
                .name           = "hsmmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                .parent         = &exynos5_clk_aclk_200.clk,
                .enable         = exynos5_clk_ip_fsys_ctrl,
                .ctrlbit        = (1 << 15),
@@ -813,7 +813,7 @@ static struct clksrc_clk exynos5_clk_sclk_uart3 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc0 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                .parent         = &exynos5_clk_dout_mmc0.clk,
                .enable         = exynos5_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 0),
@@ -824,7 +824,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc0 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc1 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                .parent         = &exynos5_clk_dout_mmc1.clk,
                .enable         = exynos5_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 4),
@@ -835,7 +835,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc1 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc2 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                .parent         = &exynos5_clk_dout_mmc2.clk,
                .enable         = exynos5_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 8),
@@ -846,7 +846,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc2 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
        .clk    = {
                .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                .parent         = &exynos5_clk_dout_mmc3.clk,
                .enable         = exynos5_clksrc_mask_fsys_ctrl,
                .ctrlbit        = (1 << 12),
@@ -990,10 +990,10 @@ static struct clk_lookup exynos5_clk_lookup[] = {
        CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos5_clk_sclk_uart1.clk),
        CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos5_clk_sclk_uart2.clk),
        CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos5_clk_sclk_uart3.clk),
-        CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk),
+        CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk),
-        CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk),
+        CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk),
-        CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk),
+        CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk),
-        CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk),
+        CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk),
        CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0),
        CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1),
        CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1),
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 8614aab47cc0..5ccd6e80a607 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -326,6 +326,11 @@ static void __init exynos4_map_io(void)
        s3c_fimc_setname(2, "exynos4-fimc");
        s3c_fimc_setname(3, "exynos4-fimc");
+        s3c_sdhci_setname(0, "exynos4-sdhci");
+        s3c_sdhci_setname(1, "exynos4-sdhci");
+        s3c_sdhci_setname(2, "exynos4-sdhci");
+        s3c_sdhci_setname(3, "exynos4-sdhci");
        /* The I2C bus controllers are directly compatible with s3c2440 */
        s3c_i2c0_setname("s3c2440-i2c");
        s3c_i2c1_setname("s3c2440-i2c");
@@ -344,6 +349,11 @@ static void __init exynos5_map_io(void)
        s3c_device_i2c0.resource[1].start = EXYNOS5_IRQ_IIC;
        s3c_device_i2c0.resource[1].end   = EXYNOS5_IRQ_IIC;
+        s3c_sdhci_setname(0, "exynos4-sdhci");
+        s3c_sdhci_setname(1, "exynos4-sdhci");
+        s3c_sdhci_setname(2, "exynos4-sdhci");
+        s3c_sdhci_setname(3, "exynos4-sdhci");
        /* The I2C bus controllers are directly compatible with s3c2440 */
        s3c_i2c0_setname("s3c2440-i2c");
        s3c_i2c1_setname("s3c2440-i2c");
@@ -537,7 +547,9 @@ void __init exynos5_init_irq(void)
 {
        int irq;
-        gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU);
+#ifdef CONFIG_OF
+        of_irq_init(exynos4_dt_irq_match);
+#endif
        for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) {
                combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
diff --git a/arch/arm/mach-exynos/dev-dwmci.c b/arch/arm/mach-exynos/dev-dwmci.c
index b025db4bf602..79035018fb74 100644
--- a/arch/arm/mach-exynos/dev-dwmci.c
+++ b/arch/arm/mach-exynos/dev-dwmci.c
@@ -16,6 +16,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/ioport.h>
 #include <linux/mmc/dw_mmc.h>
 #include <plat/devs.h>
@@ -33,16 +34,8 @@ static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
 }
 static struct resource exynos4_dwmci_resource[] = {
-        [0] = {
+        [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K),
-                .start  = EXYNOS4_PA_DWMCI,
+        [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI),
-                .end    = EXYNOS4_PA_DWMCI + SZ_4K - 1,
-                .flags  = IORESOURCE_MEM,
-        },
-        [1] = {
-                .start  = IRQ_DWMCI,
-                .end    = IRQ_DWMCI,
-                .flags  = IORESOURCE_IRQ,
-        }
 };
 static struct dw_mci_board exynos4_dwci_pdata = {
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index b4f1f902ce6d..ed90aef404c3 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -112,6 +112,7 @@ static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = {
        .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
                                MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
                                MMC_CAP_ERASE),
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
        .cd_type                = S3C_SDHCI_CD_PERMANENT,
        .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 };
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 7ebf79c2ab34..cb2b027f09a6 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -747,6 +747,7 @@ static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = {
        .max_width              = 8,
        .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
                                MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
        .cd_type                = S3C_SDHCI_CD_PERMANENT,
        .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 };
diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c
index 962e71169750..fb3496a52ef4 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c
@@ -17,6 +17,7 @@
 #include <linux/irqdomain.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/memblock.h>
@@ -49,10 +50,22 @@ static void __init msm8x60_map_io(void)
        msm_map_msm8x60_io();
 }
+#ifdef CONFIG_OF
+static struct of_device_id msm_dt_gic_match[] __initdata = {
+        { .compatible = "qcom,msm-8660-qgic", .data = gic_of_init },
+        {}
+};
+#endif
 static void __init msm8x60_init_irq(void)
 {
-        gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
+        if (!of_have_populated_dt())
-                 (void *)MSM_QGIC_CPU_BASE);
+                gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
+                         (void *)MSM_QGIC_CPU_BASE);
+#ifdef CONFIG_OF
+        else
+                of_irq_init(msm_dt_gic_match);
+#endif
        /* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
        writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
@@ -73,16 +86,8 @@ static struct of_dev_auxdata msm_auxdata_lookup[] __initdata = {
        {}
 };
-static struct of_device_id msm_dt_gic_match[] __initdata = {
-        { .compatible = "qcom,msm-8660-qgic", },
-        {}
-};
 static void __init msm8x60_dt_init(void)
 {
-        irq_domain_generate_simple(msm_dt_gic_match, MSM8X60_QGIC_DIST_PHYS,
-                                GIC_SPI_START);
        if (of_machine_is_compatible("qcom,msm8660-surf")) {
                printk(KERN_INFO "Init surf UART registers\n");
                msm8x60_init_uart12dm();
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
index c54cef25895c..cbf51ae81855 100644
--- a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
@@ -17,6 +17,7 @@
 *
 * bit     23 - Input/Output (PXA2xx specific)
 * bit     24 - Wakeup Enable(PXA2xx specific)
+ * bit     25 - Keep Output  (PXA2xx specific)
 */
 #define MFP_DIR_IN              (0x0 << 23)
@@ -25,6 +26,12 @@
 #define MFP_DIR(x)              (((x) >> 23) & 0x1)
 #define MFP_LPM_CAN_WAKEUP      (0x1 << 24)
+/*
+ * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to
+ * retain their last output level (low or high).
+ * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input.
+ */
 #define MFP_LPM_KEEP_OUTPUT     (0x1 << 25)
 #define WAKEUP_ON_EDGE_RISE     (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE)
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index b0a842887780..ef0426a159d4 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -33,6 +33,8 @@
 #define BANK_OFF(n)     (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 #define GPLR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5))
 #define GPDR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c)
+#define GPSR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x18)
+#define GPCR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x24)
 #define PWER_WE35       (1 << 24)
@@ -348,6 +350,7 @@ static inline void pxa27x_mfp_init(void) {}
 #ifdef CONFIG_PM
 static unsigned long saved_gafr[2][4];
 static unsigned long saved_gpdr[4];
+static unsigned long saved_gplr[4];
 static unsigned long saved_pgsr[4];
 static int pxa2xx_mfp_suspend(void)
@@ -366,14 +369,26 @@ static int pxa2xx_mfp_suspend(void)
        }
        for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
                saved_gafr[0][i] = GAFR_L(i);
                saved_gafr[1][i] = GAFR_U(i);
                saved_gpdr[i] = GPDR(i * 32);
+                saved_gplr[i] = GPLR(i * 32);
                saved_pgsr[i] = PGSR(i);
-                GPDR(i * 32) = gpdr_lpm[i];
+                GPSR(i * 32) = PGSR(i);
+                GPCR(i * 32) = ~PGSR(i);
+        }
+        /* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */
+        for (i = 0; i < pxa_last_gpio; i++) {
+                if ((gpdr_lpm[gpio_to_bank(i)] & GPIO_bit(i)) ||
+                    ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) &&
+                     (saved_gpdr[gpio_to_bank(i)] & GPIO_bit(i))))
+                        GPDR(i) |= GPIO_bit(i);
+                else
+                        GPDR(i) &= ~GPIO_bit(i);
        }
        return 0;
 }
@@ -384,6 +399,8 @@ static void pxa2xx_mfp_resume(void)
        for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
                GAFR_L(i) = saved_gafr[0][i];
                GAFR_U(i) = saved_gafr[1][i];
+                GPSR(i * 32) = saved_gplr[i];
+                GPCR(i * 32) = ~saved_gplr[i];
                GPDR(i * 32) = saved_gpdr[i];
                PGSR(i) = saved_pgsr[i];
        }
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 6bce78edce7a..4726c246dcdc 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -421,8 +421,11 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
        pxa_register_device(&pxa27x_device_i2c_power, info);
 }
+static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
+        .gpio_set_wake = gpio_set_wake,
+};
 static struct platform_device *devices[] __initdata = {
-        &pxa_device_gpio,
        &pxa27x_device_udc,
        &pxa_device_pmu,
        &pxa_device_i2s,
@@ -458,6 +461,7 @@ static int __init pxa27x_init(void)
                register_syscore_ops(&pxa2xx_mfp_syscore_ops);
                register_syscore_ops(&pxa2xx_clock_syscore_ops);
+                pxa_register_device(&pxa_device_gpio, &pxa27x_gpio_info);
                ret = platform_add_devices(devices, ARRAY_SIZE(devices));
        }
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 0f3a327ebcaa..b34287ab5afd 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -111,10 +111,6 @@ config S3C24XX_SETUP_TS
        help
          Compile in platform device definition for Samsung TouchScreen.
-# cpu-specific sections
-if CPU_S3C2410
 config S3C2410_DMA
        bool
        depends on S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442)
@@ -127,6 +123,10 @@ config S3C2410_PM
        help
          Power Management code common to S3C2410 and better
+# cpu-specific sections
+if CPU_S3C2410
 config S3C24XX_SIMTEC_NOR
        bool
        help
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index a8933de3d627..32395664e879 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -25,6 +25,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/gpio.h>
+#include <linux/mmc/host.h>
 #include <linux/interrupt.h>
 #include <asm/hardware/vic.h>
@@ -765,6 +766,7 @@ static void __init goni_pmic_init(void)
 /* MoviNAND */
 static struct s3c_sdhci_platdata goni_hsmmc0_data __initdata = {
        .max_width              = 4,
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
        .cd_type                = S3C_SDHCI_CD_PERMANENT,
 };
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 7c524b4e415d..16be4c56abe3 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -306,7 +306,7 @@ void sa11x0_register_irda(struct irda_platform_data *irda)
 }
 static struct resource sa1100_rtc_resources[] = {
-        DEFINE_RES_MEM(0x90010000, 0x9001003f),
+        DEFINE_RES_MEM(0x90010000, 0x40),
        DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"),
        DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"),
 };
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 1621ad07d284..33339745d432 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -1667,8 +1667,10 @@ void __init u300_init_irq(void)
        for (i = 0; i < U300_VIC_IRQS_END; i++)
                set_bit(i, (unsigned long *) &mask[0]);
-        vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], mask[0]);
+        vic_init((void __iomem *) U300_INTCON0_VBASE, IRQ_U300_INTCON0_START,
-        vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], mask[1]);
+                 mask[0], mask[0]);
+        vic_init((void __iomem *) U300_INTCON1_VBASE, IRQ_U300_INTCON1_START,
+                 mask[1], mask[1]);
 }
diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c
index a38f80238ea9..cb04bd6ab3e7 100644
--- a/arch/arm/mach-u300/i2c.c
+++ b/arch/arm/mach-u300/i2c.c
@@ -146,9 +146,6 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                .min_uV = 1800000,
                                .max_uV = 1800000,
                                .valid_modes_mask = REGULATOR_MODE_NORMAL,
-                                .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
-                                REGULATOR_CHANGE_STATUS,
                                .always_on = 1,
                                .boot_on = 1,
                        },
@@ -160,9 +157,6 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                .min_uV = 2500000,
                                .max_uV = 2500000,
                                .valid_modes_mask = REGULATOR_MODE_NORMAL,
-                                .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
-                                REGULATOR_CHANGE_STATUS,
                                .always_on = 1,
                                .boot_on = 1,
                        },
@@ -230,8 +224,7 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                .max_uV = 1800000,
                                .valid_modes_mask = REGULATOR_MODE_NORMAL,
                                .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
+                                REGULATOR_CHANGE_VOLTAGE,
-                                REGULATOR_CHANGE_STATUS,
                                .always_on = 1,
                                .boot_on = 1,
                        },
diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h
index ee78a26707eb..ec09c1e07b1a 100644
--- a/arch/arm/mach-u300/include/mach/irqs.h
+++ b/arch/arm/mach-u300/include/mach/irqs.h
@@ -12,101 +12,101 @@
 #ifndef __MACH_IRQS_H
 #define __MACH_IRQS_H
-#define IRQ_U300_INTCON0_START          0
+#define IRQ_U300_INTCON0_START          1
-#define IRQ_U300_INTCON1_START          32
+#define IRQ_U300_INTCON1_START          33
 /* These are on INTCON0 - 30 lines */
-#define IRQ_U300_IRQ0_EXT               0
+#define IRQ_U300_IRQ0_EXT               1
-#define IRQ_U300_IRQ1_EXT               1
+#define IRQ_U300_IRQ1_EXT               2
-#define IRQ_U300_DMA                    2
+#define IRQ_U300_DMA                    3
-#define IRQ_U300_VIDEO_ENC_0            3
+#define IRQ_U300_VIDEO_ENC_0            4
-#define IRQ_U300_VIDEO_ENC_1            4
+#define IRQ_U300_VIDEO_ENC_1            5
-#define IRQ_U300_AAIF_RX                5
+#define IRQ_U300_AAIF_RX                6
-#define IRQ_U300_AAIF_TX                6
+#define IRQ_U300_AAIF_TX                7
-#define IRQ_U300_AAIF_VGPIO             7
+#define IRQ_U300_AAIF_VGPIO             8
-#define IRQ_U300_AAIF_WAKEUP            8
+#define IRQ_U300_AAIF_WAKEUP            9
-#define IRQ_U300_PCM_I2S0_FRAME         9
+#define IRQ_U300_PCM_I2S0_FRAME         10
-#define IRQ_U300_PCM_I2S0_FIFO          10
+#define IRQ_U300_PCM_I2S0_FIFO          11
-#define IRQ_U300_PCM_I2S1_FRAME         11
+#define IRQ_U300_PCM_I2S1_FRAME         12
-#define IRQ_U300_PCM_I2S1_FIFO          12
+#define IRQ_U300_PCM_I2S1_FIFO          13
-#define IRQ_U300_XGAM_GAMCON            13
+#define IRQ_U300_XGAM_GAMCON            14
-#define IRQ_U300_XGAM_CDI               14
+#define IRQ_U300_XGAM_CDI               15
-#define IRQ_U300_XGAM_CDICON            15
+#define IRQ_U300_XGAM_CDICON            16
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330)
 /* MMIACC not used on the DB3210 or DB3350 chips */
-#define IRQ_U300_XGAM_MMIACC            16
+#define IRQ_U300_XGAM_MMIACC            17
 #endif
-#define IRQ_U300_XGAM_PDI               17
+#define IRQ_U300_XGAM_PDI               18
-#define IRQ_U300_XGAM_PDICON            18
+#define IRQ_U300_XGAM_PDICON            19
-#define IRQ_U300_XGAM_GAMEACC           19
+#define IRQ_U300_XGAM_GAMEACC           20
-#define IRQ_U300_XGAM_MCIDCT            20
+#define IRQ_U300_XGAM_MCIDCT            21
-#define IRQ_U300_APEX                   21
+#define IRQ_U300_APEX                   22
-#define IRQ_U300_UART0                  22
+#define IRQ_U300_UART0                  23
-#define IRQ_U300_SPI                    23
+#define IRQ_U300_SPI                    24
-#define IRQ_U300_TIMER_APP_OS           24
+#define IRQ_U300_TIMER_APP_OS           25
-#define IRQ_U300_TIMER_APP_DD           25
+#define IRQ_U300_TIMER_APP_DD           26
-#define IRQ_U300_TIMER_APP_GP1          26
+#define IRQ_U300_TIMER_APP_GP1          27
-#define IRQ_U300_TIMER_APP_GP2          27
+#define IRQ_U300_TIMER_APP_GP2          28
-#define IRQ_U300_TIMER_OS               28
+#define IRQ_U300_TIMER_OS               29
-#define IRQ_U300_TIMER_MS               29
+#define IRQ_U300_TIMER_MS               30
-#define IRQ_U300_KEYPAD_KEYBF           30
+#define IRQ_U300_KEYPAD_KEYBF           31
-#define IRQ_U300_KEYPAD_KEYBR           31
+#define IRQ_U300_KEYPAD_KEYBR           32
 /* These are on INTCON1 - 32 lines */
-#define IRQ_U300_GPIO_PORT0             32
+#define IRQ_U300_GPIO_PORT0             33
-#define IRQ_U300_GPIO_PORT1             33
+#define IRQ_U300_GPIO_PORT1             34
-#define IRQ_U300_GPIO_PORT2             34
+#define IRQ_U300_GPIO_PORT2             35
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) || \
    defined(CONFIG_MACH_U300_BS335)
 /* These are for DB3150, DB3200 and DB3350 */
-#define IRQ_U300_WDOG                   35
+#define IRQ_U300_WDOG                   36
-#define IRQ_U300_EVHIST                 36
+#define IRQ_U300_EVHIST                 37
-#define IRQ_U300_MSPRO                  37
+#define IRQ_U300_MSPRO                  38
-#define IRQ_U300_MMCSD_MCIINTR0         38
+#define IRQ_U300_MMCSD_MCIINTR0         39
-#define IRQ_U300_MMCSD_MCIINTR1         39
+#define IRQ_U300_MMCSD_MCIINTR1         40
-#define IRQ_U300_I2C0                   40
+#define IRQ_U300_I2C0                   41
-#define IRQ_U300_I2C1                   41
+#define IRQ_U300_I2C1                   42
-#define IRQ_U300_RTC                    42
+#define IRQ_U300_RTC                    43
-#define IRQ_U300_NFIF                   43
+#define IRQ_U300_NFIF                   44
-#define IRQ_U300_NFIF2                  44
+#define IRQ_U300_NFIF2                  45
 #endif
 /* DB3150 and DB3200 have only 45 IRQs */
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330)
-#define U300_VIC_IRQS_END               45
+#define U300_VIC_IRQS_END               46
 #endif
 /* The DB3350-specific interrupt lines */
 #ifdef CONFIG_MACH_U300_BS335
-#define IRQ_U300_ISP_F0                 45
+#define IRQ_U300_ISP_F0                 46
-#define IRQ_U300_ISP_F1                 46
+#define IRQ_U300_ISP_F1                 47
-#define IRQ_U300_ISP_F2                 47
+#define IRQ_U300_ISP_F2                 48
-#define IRQ_U300_ISP_F3                 48
+#define IRQ_U300_ISP_F3                 49
-#define IRQ_U300_ISP_F4                 49
+#define IRQ_U300_ISP_F4                 50
-#define IRQ_U300_GPIO_PORT3             50
+#define IRQ_U300_GPIO_PORT3             51
-#define IRQ_U300_SYSCON_PLL_LOCK        51
+#define IRQ_U300_SYSCON_PLL_LOCK        52
-#define IRQ_U300_UART1                  52
+#define IRQ_U300_UART1                  53
-#define IRQ_U300_GPIO_PORT4             53
+#define IRQ_U300_GPIO_PORT4             54
-#define IRQ_U300_GPIO_PORT5             54
+#define IRQ_U300_GPIO_PORT5             55
-#define IRQ_U300_GPIO_PORT6             55
+#define IRQ_U300_GPIO_PORT6             56
-#define U300_VIC_IRQS_END               56
+#define U300_VIC_IRQS_END               57
 #endif
 /* The DB3210-specific interrupt lines */
 #ifdef CONFIG_MACH_U300_BS365
-#define IRQ_U300_GPIO_PORT3             35
+#define IRQ_U300_GPIO_PORT3             36
-#define IRQ_U300_GPIO_PORT4             36
+#define IRQ_U300_GPIO_PORT4             37
-#define IRQ_U300_WDOG                   37
+#define IRQ_U300_WDOG                   38
-#define IRQ_U300_EVHIST                 38
+#define IRQ_U300_EVHIST                 39
-#define IRQ_U300_MSPRO                  39
+#define IRQ_U300_MSPRO                  40
-#define IRQ_U300_MMCSD_MCIINTR0         40
+#define IRQ_U300_MMCSD_MCIINTR0         41
-#define IRQ_U300_MMCSD_MCIINTR1         41
+#define IRQ_U300_MMCSD_MCIINTR1         42
-#define IRQ_U300_I2C0                   42
+#define IRQ_U300_I2C0                   43
-#define IRQ_U300_I2C1                   43
+#define IRQ_U300_I2C1                   44
-#define IRQ_U300_RTC                    44
+#define IRQ_U300_RTC                    45
-#define IRQ_U300_NFIF                   45
+#define IRQ_U300_NFIF                   46
-#define IRQ_U300_NFIF2                  46
+#define IRQ_U300_NFIF2                  47
-#define IRQ_U300_SYSCON_PLL_LOCK        47
+#define IRQ_U300_SYSCON_PLL_LOCK        48
-#define U300_VIC_IRQS_END               48
+#define U300_VIC_IRQS_END               49
 #endif
 /* Maximum 8*7 GPIO lines */
@@ -117,6 +117,6 @@
 #define IRQ_U300_GPIO_END               (U300_VIC_IRQS_END)
 #endif
-#define NR_IRQS                         (IRQ_U300_GPIO_END)
+#define NR_IRQS                         (IRQ_U300_GPIO_END - IRQ_U300_INTCON0_START)
 #endif
diff --git a/arch/arm/mach-ux500/mbox-db5500.c b/arch/arm/mach-ux500/mbox-db5500.c
index 2b2d51caf9d8..0127490218cd 100644
--- a/arch/arm/mach-ux500/mbox-db5500.c
+++ b/arch/arm/mach-ux500/mbox-db5500.c
@@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct device *dev,
        return sprintf(buf, "0x%X\n", mbox_value);
 }
-static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo);
+static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo);
 static int mbox_show(struct seq_file *s, void *data)
 {
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index ff1f7cc11f87..80741992a9fc 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -26,18 +26,23 @@ ENTRY(v6_early_abort)
        mrc     p15, 0, r1, c5, c0, 0           @ get FSR
        mrc     p15, 0, r0, c6, c0, 0           @ get FAR
 /*
- * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR (erratum 326103).
+ * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR.
- * The test below covers all the write situations, including Java bytecodes
 */
-        bic     r1, r1, #1 << 11                @ clear bit 11 of FSR
+#ifdef CONFIG_ARM_ERRATA_326103
+        ldr     ip, =0x4107b36
+        mrc     p15, 0, r3, c0, c0, 0           @ get processor id
+        teq     ip, r3, lsr #4                  @ r0 ARM1136?
+        bne     do_DataAbort
        tst     r5, #PSR_J_BIT                  @ Java?
+        tsteq   r5, #PSR_T_BIT                  @ Thumb?
        bne     do_DataAbort
-        do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3
+        bic     r1, r1, #1 << 11                @ clear bit 11 of FSR
-        ldreq   r3, [r4]                        @ read aborted ARM instruction
+        ldr     r3, [r4]                        @ read aborted ARM instruction
 #ifdef CONFIG_CPU_ENDIAN_BE8
-        reveq   r3, r3
+        rev     r3, r3
 #endif
        do_ldrd_abort tmp=ip, insn=r3
        tst     r3, #1 << 20                    @ L = 0 -> write
        orreq   r1, r1, #1 << 11                @ yes.
+#endif
        b       do_DataAbort
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index a53fd2aaa2f4..2a8e380501e8 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -32,6 +32,7 @@ static void __iomem *l2x0_base;
 static DEFINE_RAW_SPINLOCK(l2x0_lock);
 static u32 l2x0_way_mask;       /* Bitmask of active ways */
 static u32 l2x0_size;
+static unsigned long sync_reg_offset = L2X0_CACHE_SYNC;
 struct l2x0_regs l2x0_saved_regs;
@@ -61,12 +62,7 @@ static inline void cache_sync(void)
 {
        void __iomem *base = l2x0_base;
-#ifdef CONFIG_PL310_ERRATA_753970
+        writel_relaxed(0, base + sync_reg_offset);
-        /* write to an unmmapped register */
-        writel_relaxed(0, base + L2X0_DUMMY_REG);
-#else
-        writel_relaxed(0, base + L2X0_CACHE_SYNC);
-#endif
        cache_wait(base + L2X0_CACHE_SYNC, 1);
 }
@@ -85,10 +81,13 @@ static inline void l2x0_inv_line(unsigned long addr)
 }
 #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915)
+static inline void debug_writel(unsigned long val)
+{
+        if (outer_cache.set_debug)
+                outer_cache.set_debug(val);
+}
-#define debug_writel(val)       outer_cache.set_debug(val)
+static void pl310_set_debug(unsigned long val)
-static void l2x0_set_debug(unsigned long val)
 {
        writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL);
 }
@@ -98,7 +97,7 @@ static inline void debug_writel(unsigned long val)
 {
 }
-#define l2x0_set_debug  NULL
+#define pl310_set_debug NULL
 #endif
 #ifdef CONFIG_PL310_ERRATA_588369
@@ -331,6 +330,11 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
                else
                        ways = 8;
                type = "L310";
+#ifdef CONFIG_PL310_ERRATA_753970
+                /* Unmapped register. */
+                sync_reg_offset = L2X0_DUMMY_REG;
+#endif
+                outer_cache.set_debug = pl310_set_debug;
                break;
        case L2X0_CACHE_ID_PART_L210:
                ways = (aux >> 13) & 0xf;
@@ -379,7 +383,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
        outer_cache.flush_all = l2x0_flush_all;
        outer_cache.inv_all = l2x0_inv_all;
        outer_cache.disable = l2x0_disable;
-        outer_cache.set_debug = l2x0_set_debug;
        printk(KERN_INFO "%s cache controller enabled\n", type);
        printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 595079fa9d1d..8f5813bbffb5 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -293,11 +293,11 @@ EXPORT_SYMBOL(pfn_valid);
 #endif
 #ifndef CONFIG_SPARSEMEM
-static void arm_memory_present(void)
+static void __init arm_memory_present(void)
 {
 }
 #else
-static void arm_memory_present(void)
+static void __init arm_memory_present(void)
 {
        struct memblock_region *reg;
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index b86f8933ff91..2c7cf2f9c837 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -618,8 +618,8 @@ static void __init alloc_init_section(pud_t *pud, unsigned long addr,
        }
 }
-static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
+static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr,
-        unsigned long phys, const struct mem_type *type)
+        unsigned long end, unsigned long phys, const struct mem_type *type)
 {
        pud_t *pud = pud_offset(pgd, addr);
        unsigned long next;
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index ecdb3da0dea9..c58d896cd5c3 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -916,6 +916,13 @@ void omap_start_dma(int lch)
                        l |= OMAP_DMA_CCR_BUFFERING_DISABLE;
        l |= OMAP_DMA_CCR_EN;
+        /*
+         * As dma_write() uses IO accessors which are weakly ordered, there
+         * is no guarantee that data in coherent DMA memory will be visible
+         * to the DMA device.  Add a memory barrier here to ensure that any
+         * such data is visible prior to enabling DMA.
+         */
+        mb();
        p->dma_write(l, CCR, lch);
        dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
@@ -965,6 +972,13 @@ void omap_stop_dma(int lch)
                p->dma_write(l, CCR, lch);
        }
+        /*
+         * Ensure that data transferred by DMA is visible to any access
+         * after DMA has been disabled.  This is important for coherent
+         * DMA regions.
+         */
+        mb();
        if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
                int next_lch, cur_lch = lch;
                char dma_chan_link_map[dma_lch_count];
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
index 317e246ffc56..e834c5ef437c 100644
--- a/arch/arm/plat-samsung/include/plat/sdhci.h
+++ b/arch/arm/plat-samsung/include/plat/sdhci.h
@@ -18,6 +18,8 @@
 #ifndef __PLAT_S3C_SDHCI_H
 #define __PLAT_S3C_SDHCI_H __FILE__
+#include <plat/devs.h>
 struct platform_device;
 struct mmc_host;
 struct mmc_card;
@@ -356,4 +358,30 @@ static inline void exynos4_default_sdhci3(void) { }
 #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
+static inline void s3c_sdhci_setname(int id, char *name)
+{
+        switch (id) {
+#ifdef CONFIG_S3C_DEV_HSMMC
+        case 0:
+                s3c_device_hsmmc0.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC1
+        case 1:
+                s3c_device_hsmmc1.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC2
+        case 2:
+                s3c_device_hsmmc2.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC3
+        case 3:
+                s3c_device_hsmmc3.name = name;
+                break;
+#endif
+        }
+}
 #endif /* __PLAT_S3C_SDHCI_H */
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 858748eaa144..bc683b8219b5 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -17,6 +17,8 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/user.h>
 #include <asm/cp15.h>
 #include <asm/cputype.h>
@@ -529,6 +531,103 @@ void vfp_flush_hwstate(struct thread_info *thread)
 }
 /*
+ * Save the current VFP state into the provided structures and prepare
+ * for entry into a new function (signal handler).
+ */
+int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp,
+                                    struct user_vfp_exc __user *ufp_exc)
+{
+        struct thread_info *thread = current_thread_info();
+        struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+        int err = 0;
+        /* Ensure that the saved hwstate is up-to-date. */
+        vfp_sync_hwstate(thread);
+        /*
+         * Copy the floating point registers. There can be unused
+         * registers see asm/hwcap.h for details.
+         */
+        err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs,
+                              sizeof(hwstate->fpregs));
+        /*
+         * Copy the status and control register.
+         */
+        __put_user_error(hwstate->fpscr, &ufp->fpscr, err);
+        /*
+         * Copy the exception registers.
+         */
+        __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err);
+        __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
+        __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err);
+        if (err)
+                return -EFAULT;
+        /* Ensure that VFP is disabled. */
+        vfp_flush_hwstate(thread);
+        /*
+         * As per the PCS, clear the length and stride bits for function
+         * entry.
+         */
+        hwstate->fpscr &= ~(FPSCR_LENGTH_MASK | FPSCR_STRIDE_MASK);
+        /*
+         * Disable VFP in the hwstate so that we can detect if it gets
+         * used.
+         */
+        hwstate->fpexc &= ~FPEXC_EN;
+        return 0;
+}
+/* Sanitise and restore the current VFP state from the provided structures. */
+int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
+                             struct user_vfp_exc __user *ufp_exc)
+{
+        struct thread_info *thread = current_thread_info();
+        struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+        unsigned long fpexc;
+        int err = 0;
+        /*
+         * If VFP has been used, then disable it to avoid corrupting
+         * the new thread state.
+         */
+        if (hwstate->fpexc & FPEXC_EN)
+                vfp_flush_hwstate(thread);
+        /*
+         * Copy the floating point registers. There can be unused
+         * registers see asm/hwcap.h for details.
+         */
+        err |= __copy_from_user(&hwstate->fpregs, &ufp->fpregs,
+                                sizeof(hwstate->fpregs));
+        /*
+         * Copy the status and control register.
+         */
+        __get_user_error(hwstate->fpscr, &ufp->fpscr, err);
+        /*
+         * Sanitise and restore the exception registers.
+         */
+        __get_user_error(fpexc, &ufp_exc->fpexc, err);
+        /* Ensure the VFP is enabled. */
+        fpexc |= FPEXC_EN;
+        /* Ensure FPINST2 is invalid and the exception flag is cleared. */
+        fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
+        hwstate->fpexc = fpexc;
+        __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
+        __get_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err);
+        return err ? -EFAULT : 0;
+}
+/*
 * VFP hardware can lose all context when a CPU goes offline.
 * As we will be running in SMP mode with CPU hotplug, we will save the
 * hardware state at every thread switch.  We clear our held state when
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index 1633a6f306c0..85038f54354d 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -38,7 +38,7 @@ static struct platform_device rtc_device = {
        .name = "rtc-bfin",
        .id   = -1,
 };
-#endif
+#endif  /* CONFIG_RTC_DRV_BFIN */
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_UART0
@@ -100,7 +100,7 @@ static struct platform_device bfin_uart0_device = {
                .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART0 */
 #ifdef CONFIG_SERIAL_BFIN_UART1
 static struct resource bfin_uart1_resources[] = {
        {
@@ -148,7 +148,7 @@ static struct platform_device bfin_uart1_device = {
                .platform_data = &bfin_uart1_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART1 */
 #ifdef CONFIG_SERIAL_BFIN_UART2
 static struct resource bfin_uart2_resources[] = {
        {
@@ -196,8 +196,8 @@ static struct platform_device bfin_uart2_device = {
                .platform_data = &bfin_uart2_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART2 */
-#endif
+#endif  /* CONFIG_SERIAL_BFIN */
 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 #ifdef CONFIG_BFIN_SIR0
@@ -224,7 +224,7 @@ static struct platform_device bfin_sir0_device = {
        .num_resources = ARRAY_SIZE(bfin_sir0_resources),
        .resource = bfin_sir0_resources,
 };
-#endif
+#endif  /* CONFIG_BFIN_SIR0 */
 #ifdef CONFIG_BFIN_SIR1
 static struct resource bfin_sir1_resources[] = {
        {
@@ -249,7 +249,7 @@ static struct platform_device bfin_sir1_device = {
        .num_resources = ARRAY_SIZE(bfin_sir1_resources),
        .resource = bfin_sir1_resources,
 };
-#endif
+#endif  /* CONFIG_BFIN_SIR1 */
 #ifdef CONFIG_BFIN_SIR2
 static struct resource bfin_sir2_resources[] = {
        {
@@ -274,8 +274,8 @@ static struct platform_device bfin_sir2_device = {
        .num_resources = ARRAY_SIZE(bfin_sir2_resources),
        .resource = bfin_sir2_resources,
 };
-#endif
+#endif  /* CONFIG_BFIN_SIR2 */
-#endif
+#endif  /* CONFIG_BFIN_SIR */
 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
@@ -311,7 +311,7 @@ static struct platform_device bfin_sport0_uart_device = {
                .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT0_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 static struct resource bfin_sport1_uart_resources[] = {
        {
@@ -345,7 +345,7 @@ static struct platform_device bfin_sport1_uart_device = {
                .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT1_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT2_UART
 static struct resource bfin_sport2_uart_resources[] = {
        {
@@ -379,7 +379,7 @@ static struct platform_device bfin_sport2_uart_device = {
                .platform_data = &bfin_sport2_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT2_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT3_UART
 static struct resource bfin_sport3_uart_resources[] = {
        {
@@ -413,8 +413,8 @@ static struct platform_device bfin_sport3_uart_device = {
                .platform_data = &bfin_sport3_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT3_UART */
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT */
 #if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
 static unsigned short bfin_can_peripherals[] = {
@@ -452,7 +452,7 @@ static struct platform_device bfin_can_device = {
                .platform_data = &bfin_can_peripherals, /* Passed to driver */
        },
 };
-#endif
+#endif  /* CONFIG_CAN_BFIN */
 /*
 *  USB-LAN EzExtender board
@@ -488,7 +488,7 @@ static struct platform_device smc91x_device = {
                .platform_data  = &smc91x_info,
        },
 };
-#endif
+#endif  /* CONFIG_SMC91X */
 #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
@@ -518,7 +518,8 @@ static struct flash_platform_data bfin_spi_flash_data = {
 static struct bfin5xx_spi_chip spi_flash_chip_info = {
        .enable_dma = 0,         /* use dma transfer with this chip*/
 };
-#endif
+#endif  /* CONFIG_MTD_M25P80 */
+#endif  /* CONFIG_SPI_BFIN5XX */
 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
 #include <linux/spi/ad7879.h>
@@ -535,7 +536,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
        .gpio_export            = 1,    /* Export GPIO to gpiolib */
        .gpio_base              = -1,   /* Dynamic allocation */
 };
-#endif
+#endif  /* CONFIG_TOUCHSCREEN_AD7879 */
 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
 #include <asm/bfin-lq035q1.h>
@@ -564,7 +565,7 @@ static struct platform_device bfin_lq035q1_device = {
                .platform_data = &bfin_lq035q1_data,
        },
 };
-#endif
+#endif  /* CONFIG_FB_BFIN_LQ035Q1 */
 static struct spi_board_info bf538_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
@@ -579,7 +580,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                .controller_data = &spi_flash_chip_info,
                .mode = SPI_MODE_3,
        },
-#endif
+#endif  /* CONFIG_MTD_M25P80 */
 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
        {
                .modalias = "ad7879",
@@ -590,7 +591,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                .chip_select = 1,
                .mode = SPI_CPHA | SPI_CPOL,
        },
-#endif
+#endif  /* CONFIG_TOUCHSCREEN_AD7879_SPI */
 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
        {
                .modalias = "bfin-lq035q1-spi",
@@ -599,7 +600,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                .chip_select = 2,
                .mode = SPI_CPHA | SPI_CPOL,
        },
-#endif
+#endif  /* CONFIG_FB_BFIN_LQ035Q1 */
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
        {
                .modalias = "spidev",
@@ -607,7 +608,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                .bus_num = 0,
                .chip_select = 1,
        },
-#endif
+#endif  /* CONFIG_SPI_SPIDEV */
 };
 /* SPI (0) */
@@ -716,8 +717,6 @@ static struct platform_device bf538_spi_master2 = {
                },
 };
-#endif  /* spi master and devices */
 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 static struct resource bfin_twi0_resource[] = {
        [0] = {
@@ -759,8 +758,8 @@ static struct platform_device i2c_bfin_twi1_device = {
        .num_resources = ARRAY_SIZE(bfin_twi1_resource),
        .resource = bfin_twi1_resource,
 };
-#endif
+#endif  /* CONFIG_BF542 */
-#endif
+#endif  /* CONFIG_I2C_BLACKFIN_TWI */
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 #include <linux/gpio_keys.h>
diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c
index e21507052066..9c717bf98ffe 100644
--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -58,8 +58,8 @@ static void __init ar913x_wmac_setup(void)
 static int ar933x_wmac_reset(void)
 {
-        ath79_device_reset_clear(AR933X_RESET_WMAC);
        ath79_device_reset_set(AR933X_RESET_WMAC);
+        ath79_device_reset_clear(AR933X_RESET_WMAC);
        return 0;
 }
diff --git a/arch/mips/include/asm/mach-jz4740/irq.h b/arch/mips/include/asm/mach-jz4740/irq.h
index a865c983c70a..5ad1a9c113c6 100644
--- a/arch/mips/include/asm/mach-jz4740/irq.h
+++ b/arch/mips/include/asm/mach-jz4740/irq.h
@@ -45,7 +45,7 @@
 #define JZ4740_IRQ_LCD          JZ4740_IRQ(30)
 /* 2nd-level interrupts */
-#define JZ4740_IRQ_DMA(x)       (JZ4740_IRQ(32) + (X))
+#define JZ4740_IRQ_DMA(x)       (JZ4740_IRQ(32) + (x))
 #define JZ4740_IRQ_INTC_GPIO(x) (JZ4740_IRQ_GPIO0 - (x))
 #define JZ4740_IRQ_GPIO(x)      (JZ4740_IRQ(48) + (x))
diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index 73c0d45798de..9b02cfba7449 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -37,12 +37,6 @@ extern void tlbmiss_handler_setup_pgd(unsigned long pgd);
                write_c0_xcontext((unsigned long) smp_processor_id() << 51); \
        } while (0)
-static inline unsigned long get_current_pgd(void)
-{
-        return PHYS_TO_XKSEG_CACHED((read_c0_context() >> 11) & ~0xfffUL);
-}
 #else /* CONFIG_MIPS_PGD_C0_CONTEXT: using  pgd_current*/
 /*
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 185ca00c4c84..d5a338a1739c 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -257,11 +257,8 @@ asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
                return -EFAULT;
        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
+        set_current_blocked(&newset);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        current->state = TASK_INTERRUPTIBLE;
        schedule();
@@ -286,11 +283,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
                return -EFAULT;
        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
+        set_current_blocked(&newset);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        current->state = TASK_INTERRUPTIBLE;
        schedule();
@@ -362,10 +356,7 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
                goto badframe;
        sigdelsetmask(&blocked, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
+        set_current_blocked(&blocked);
-        current->blocked = blocked;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        sig = restore_sigcontext(&regs, &frame->sf_sc);
        if (sig < 0)
@@ -401,10 +392,7 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                goto badframe;
        sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
        if (sig < 0)
@@ -580,12 +568,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
        if (ret)
                return ret;
-        spin_lock_irq(&current->sighand->siglock);
+        block_sigmask(ka, sig);
-        sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
-        if (!(ka->sa.sa_flags & SA_NODEFER))
-                sigaddset(&current->blocked, sig);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        return ret;
 }
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 06b5da392e24..ac3b8d89aae5 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -290,11 +290,8 @@ asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
                return -EFAULT;
        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
+        set_current_blocked(&newset);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        current->state = TASK_INTERRUPTIBLE;
        schedule();
@@ -318,11 +315,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
                return -EFAULT;
        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
+        set_current_blocked(&newset);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        current->state = TASK_INTERRUPTIBLE;
        schedule();
@@ -488,10 +482,7 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
                goto badframe;
        sigdelsetmask(&blocked, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
+        set_current_blocked(&blocked);
-        current->blocked = blocked;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        sig = restore_sigcontext32(&regs, &frame->sf_sc);
        if (sig < 0)
@@ -529,10 +520,7 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                goto badframe;
        sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        sig = restore_sigcontext32(&regs, &frame->rs_uc.uc_mcontext);
        if (sig < 0)
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index ae29e894ab8d..86eb4b04631c 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -93,11 +93,8 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
        sigset_from_compat(&newset, &uset);
        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
+        set_current_blocked(&newset);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        current->state = TASK_INTERRUPTIBLE;
        schedule();
@@ -121,10 +118,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                goto badframe;
        sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
        sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
        if (sig < 0)
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 4f004596a6e7..0b3393381a81 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -104,7 +104,7 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
 static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
 {
-        if (!tty->count) {
+        if (tty->count == 1) {
                del_timer_sync(&pdc_console_timer);
                tty_port_tty_set(&tty_port, NULL);
        }
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 548da3aa0a30..d58fc4e4149c 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -288,13 +288,6 @@ label##_hv:								\
 /* Exception addition: Hard disable interrupts */
 #define DISABLE_INTS    SOFT_DISABLE_INTS(r10,r11)
-/* Exception addition: Keep interrupt state */
-#define ENABLE_INTS                             \
-        ld      r11,PACAKMSR(r13);              \
-        ld      r12,_MSR(r1);                   \
-        rlwimi  r11,r12,0,MSR_EE;               \
-        mtmsrd  r11,1
 #define ADD_NVGPRS                              \
        bl      .save_nvgprs
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index e648af92ced1..0e40843a1c6e 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -18,10 +18,6 @@
 #include <linux/atomic.h>
-/* Define a way to iterate across irqs. */
-#define for_each_irq(i) \
-        for ((i) = 0; (i) < NR_IRQS; ++(i))
 extern atomic_t ppc_n_lost_interrupts;
 /* This number is used when no interrupt has been assigned */
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index f8a7a1a1a9f4..fc6015027a86 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -767,16 +767,6 @@ do_work:
        SOFT_DISABLE_INTS(r3,r4)
 1:      bl      .preempt_schedule_irq
-        /* Hard-disable interrupts again (and update PACA) */
-#ifdef CONFIG_PPC_BOOK3E
-        wrteei  0
-#else
-        ld      r10,PACAKMSR(r13) /* Get kernel MSR without EE */
-        mtmsrd  r10,1
-#endif /* CONFIG_PPC_BOOK3E */
-        li      r0,PACA_IRQ_HARD_DIS
-        stb     r0,PACAIRQHAPPENED(r13)
        /* Re-test flags and eventually loop */
        clrrdi  r9,r1,THREAD_SHIFT
        ld      r4,TI_FLAGS(r9)
@@ -787,14 +777,6 @@ do_work:
 user_work:
 #endif /* CONFIG_PREEMPT */
-        /* Enable interrupts */
-#ifdef CONFIG_PPC_BOOK3E
-        wrteei  1
-#else
-        ori     r10,r10,MSR_EE
-        mtmsrd  r10,1
-#endif /* CONFIG_PPC_BOOK3E */
        andi.   r0,r4,_TIF_NEED_RESCHED
        beq     1f
        bl      .restore_interrupts
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index cb705fdbb458..8f880bc77c56 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -768,8 +768,8 @@ alignment_common:
        std     r3,_DAR(r1)
        std     r4,_DSISR(r1)
        bl      .save_nvgprs
+        DISABLE_INTS
        addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
        bl      .alignment_exception
        b       .ret_from_except
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5ec1b2354ca6..c6c6f3b7f8cd 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -260,11 +260,17 @@ EXPORT_SYMBOL(arch_local_irq_restore);
 * if they are currently disabled. This is typically called before
 * schedule() or do_signal() when returning to userspace. We do it
 * in C to avoid the burden of dealing with lockdep etc...
+ *
+ * NOTE: This is called with interrupts hard disabled but not marked
+ * as such in paca->irq_happened, so we need to resync this.
 */
 void restore_interrupts(void)
 {
-        if (irqs_disabled())
+        if (irqs_disabled()) {
+                local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
                local_irq_enable();
+        } else
+                __hard_irq_enable();
 }
 #endif /* CONFIG_PPC64 */
@@ -330,14 +336,10 @@ void migrate_irqs(void)
        alloc_cpumask_var(&mask, GFP_KERNEL);
-        for_each_irq(irq) {
+        for_each_irq_desc(irq, desc) {
                struct irq_data *data;
                struct irq_chip *chip;
-                desc = irq_to_desc(irq);
-                if (!desc)
-                        continue;
                data = irq_desc_get_irq_data(desc);
                if (irqd_is_per_cpu(data))
                        continue;
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index c957b1202bdc..5df777794403 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -23,14 +23,11 @@
 void machine_kexec_mask_interrupts(void) {
        unsigned int i;
+        struct irq_desc *desc;
-        for_each_irq(i) {
+        for_each_irq_desc(i, desc) {
-                struct irq_desc *desc = irq_to_desc(i);
                struct irq_chip *chip;
-                if (!desc)
-                        continue;
                chip = irq_desc_get_chip(desc);
                if (!chip)
                        continue;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 6aa0c663e247..158972341a2d 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -248,7 +248,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
                                   addr, regs->nip, regs->link, code);
        }
-        if (!arch_irq_disabled_regs(regs))
+        if (arch_irqs_disabled() && !arch_irq_disabled_regs(regs))
                local_irq_enable();
        memset(&info, 0, sizeof(info));
@@ -1019,7 +1019,9 @@ void __kprobes program_check_exception(struct pt_regs *regs)
                return;
        }
-        local_irq_enable();
+        /* We restore the interrupt state now */
+        if (!arch_irq_disabled_regs(regs))
+                local_irq_enable();
 #ifdef CONFIG_MATH_EMULATION
        /* (reason & REASON_ILLEGAL) would be the obvious thing here,
@@ -1069,6 +1071,10 @@ void alignment_exception(struct pt_regs *regs)
 {
        int sig, code, fixed = 0;
+        /* We restore the interrupt state now */
+        if (!arch_irq_disabled_regs(regs))
+                local_irq_enable();
        /* we don't implement logging of alignment exceptions */
        if (!(current->thread.align_ctl & PR_UNALIGN_SIGBUS))
                fixed = fix_alignment(regs);
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index af1ab5e9a691..5c3cf2d04e41 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -48,7 +48,13 @@
 /*
 * Assembly helpers from arch/powerpc/net/bpf_jit.S:
 */
-extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[];
+#define DECLARE_LOAD_FUNC(func) \
+        extern u8 func[], func##_negative_offset[], func##_positive_offset[]
+DECLARE_LOAD_FUNC(sk_load_word);
+DECLARE_LOAD_FUNC(sk_load_half);
+DECLARE_LOAD_FUNC(sk_load_byte);
+DECLARE_LOAD_FUNC(sk_load_byte_msh);
 #define FUNCTION_DESCR_SIZE     24
diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S
index ff4506e85cce..55ba3855a97f 100644
--- a/arch/powerpc/net/bpf_jit_64.S
+++ b/arch/powerpc/net/bpf_jit_64.S
@@ -31,14 +31,13 @@
 * then branch directly to slow_path_XXX if required.  (In fact, could
 * load a spare GPR with the address of slow_path_generic and pass size
 * as an argument, making the call site a mtlr, li and bllr.)
- *
- * Technically, the "is addr < 0" check is unnecessary & slowing down
- * the ABS path, as it's statically checked on generation.
 */
        .globl  sk_load_word
 sk_load_word:
        cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_word_neg
+        .globl  sk_load_word_positive_offset
+sk_load_word_positive_offset:
        /* Are we accessing past headlen? */
        subi    r_scratch1, r_HL, 4
        cmpd    r_scratch1, r_addr
@@ -51,7 +50,9 @@ sk_load_word:
        .globl  sk_load_half
 sk_load_half:
        cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_half_neg
+        .globl  sk_load_half_positive_offset
+sk_load_half_positive_offset:
        subi    r_scratch1, r_HL, 2
        cmpd    r_scratch1, r_addr
        blt     bpf_slow_path_half
@@ -61,7 +62,9 @@ sk_load_half:
        .globl  sk_load_byte
 sk_load_byte:
        cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_byte_neg
+        .globl  sk_load_byte_positive_offset
+sk_load_byte_positive_offset:
        cmpd    r_HL, r_addr
        ble     bpf_slow_path_byte
        lbzx    r_A, r_D, r_addr
@@ -69,22 +72,20 @@ sk_load_byte:
 /*
 * BPF_S_LDX_B_MSH: ldxb  4*([offset]&0xf)
- * r_addr is the offset value, already known positive
+ * r_addr is the offset value
 */
        .globl sk_load_byte_msh
 sk_load_byte_msh:
+        cmpdi   r_addr, 0
+        blt     bpf_slow_path_byte_msh_neg
+        .globl sk_load_byte_msh_positive_offset
+sk_load_byte_msh_positive_offset:
        cmpd    r_HL, r_addr
        ble     bpf_slow_path_byte_msh
        lbzx    r_X, r_D, r_addr
        rlwinm  r_X, r_X, 2, 32-4-2, 31-2
        blr
-bpf_error:
-        /* Entered with cr0 = lt */
-        li      r3, 0
-        /* Generated code will 'blt epilogue', returning 0. */
-        blr
 /* Call out to skb_copy_bits:
 * We'll need to back up our volatile regs first; we have
 * local variable space at r1+(BPF_PPC_STACK_BASIC).
@@ -136,3 +137,84 @@ bpf_slow_path_byte_msh:
        lbz     r_X, BPF_PPC_STACK_BASIC+(2*8)(r1)
        rlwinm  r_X, r_X, 2, 32-4-2, 31-2
        blr
+/* Call out to bpf_internal_load_pointer_neg_helper:
+ * We'll need to back up our volatile regs first; we have
+ * local variable space at r1+(BPF_PPC_STACK_BASIC).
+ * Allocate a new stack frame here to remain ABI-compliant in
+ * stashing LR.
+ */
+#define sk_negative_common(SIZE)                                \
+        mflr    r0;                                             \
+        std     r0, 16(r1);                                     \
+        /* R3 goes in parameter space of caller's frame */      \
+        std     r_skb, (BPF_PPC_STACKFRAME+48)(r1);             \
+        std     r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1);           \
+        std     r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1);           \
+        stdu    r1, -BPF_PPC_SLOWPATH_FRAME(r1);                \
+        /* R3 = r_skb, as passed */                             \
+        mr      r4, r_addr;                                     \
+        li      r5, SIZE;                                       \
+        bl      bpf_internal_load_pointer_neg_helper;           \
+        /* R3 != 0 on success */                                \
+        addi    r1, r1, BPF_PPC_SLOWPATH_FRAME;                 \
+        ld      r0, 16(r1);                                     \
+        ld      r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1);           \
+        ld      r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1);           \
+        mtlr    r0;                                             \
+        cmpldi  r3, 0;                                          \
+        beq     bpf_error_slow; /* cr0 = EQ */                  \
+        mr      r_addr, r3;                                     \
+        ld      r_skb, (BPF_PPC_STACKFRAME+48)(r1);             \
+        /* Great success! */
+bpf_slow_path_word_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_word_negative_offset
+sk_load_word_negative_offset:
+        sk_negative_common(4)
+        lwz     r_A, 0(r_addr)
+        blr
+bpf_slow_path_half_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_half_negative_offset
+sk_load_half_negative_offset:
+        sk_negative_common(2)
+        lhz     r_A, 0(r_addr)
+        blr
+bpf_slow_path_byte_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_byte_negative_offset
+sk_load_byte_negative_offset:
+        sk_negative_common(1)
+        lbz     r_A, 0(r_addr)
+        blr
+bpf_slow_path_byte_msh_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_byte_msh_negative_offset
+sk_load_byte_msh_negative_offset:
+        sk_negative_common(1)
+        lbz     r_X, 0(r_addr)
+        rlwinm  r_X, r_X, 2, 32-4-2, 31-2
+        blr
+bpf_error_slow:
+        /* fabricate a cr0 = lt */
+        li      r_scratch1, -1
+        cmpdi   r_scratch1, 0
+bpf_error:
+        /* Entered with cr0 = lt */
+        li      r3, 0
+        /* Generated code will 'blt epilogue', returning 0. */
+        blr
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 73619d3aeb6c..2dc8b1484845 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -127,6 +127,9 @@ static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
        PPC_BLR();
 }
+#define CHOOSE_LOAD_FUNC(K, func) \
+        ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
 /* Assemble the body code between the prologue & epilogue. */
 static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                              struct codegen_context *ctx,
@@ -391,21 +394,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                        /*** Absolute loads from packet header/data ***/
                case BPF_S_LD_W_ABS:
-                        func = sk_load_word;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_word);
                        goto common_load;
                case BPF_S_LD_H_ABS:
-                        func = sk_load_half;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_half);
                        goto common_load;
                case BPF_S_LD_B_ABS:
-                        func = sk_load_byte;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_byte);
                common_load:
-                        /*
+                        /* Load from [K]. */
-                         * Load from [K].  Reference with the (negative)
-                         * SKF_NET_OFF/SKF_LL_OFF offsets is unsupported.
-                         */
                        ctx->seen |= SEEN_DATAREF;
-                        if ((int)K < 0)
-                                return -ENOTSUPP;
                        PPC_LI64(r_scratch1, func);
                        PPC_MTLR(r_scratch1);
                        PPC_LI32(r_addr, K);
@@ -429,7 +427,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                common_load_ind:
                        /*
                         * Load from [X + K].  Negative offsets are tested for
-                         * in the helper functions, and result in a 'ret 0'.
+                         * in the helper functions.
                         */
                        ctx->seen |= SEEN_DATAREF | SEEN_XREG;
                        PPC_LI64(r_scratch1, func);
@@ -443,13 +441,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                        break;
                case BPF_S_LDX_B_MSH:
-                        /*
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh);
-                         * x86 version drops packet (RET 0) when K<0, whereas
-                         * interpreter does allow K<0 (__load_pointer, special
-                         * ancillary data).  common_load returns ENOTSUPP if K<0,
-                         * so we fall back to interpreter & filter works.
-                         */
-                        func = sk_load_byte_msh;
                        goto common_load;
                        break;
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index d09f3e8e6867..85825b5401e5 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -114,7 +114,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
                pr_devel("axon_msi: woff %x roff %x msi %x\n",
                          write_offset, msic->read_offset, msi);
-                if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) {
+                if (msi < nr_irqs && irq_get_chip_data(msi) == msic) {
                        generic_handle_irq(msi);
                        msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
                } else {
@@ -276,9 +276,6 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
        if (rc)
                return rc;
-        /* We rely on being able to stash a virq in a u16 */
-        BUILD_BUG_ON(NR_IRQS > 65536);
        list_for_each_entry(entry, &dev->msi_list, list) {
                virq = irq_create_direct_mapping(msic->irq_domain);
                if (virq == NO_IRQ) {
@@ -392,7 +389,8 @@ static int axon_msi_probe(struct platform_device *device)
        }
        memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
-        msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic);
+        /* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */
+        msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic);
        if (!msic->irq_domain) {
                printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
                       dn->full_name);
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index f9a48af335cb..8c6dc42ecf65 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -248,6 +248,6 @@ void beatic_deinit_IRQ(void)
 {
        int     i;
-        for (i = 1; i < NR_IRQS; i++)
+        for (i = 1; i < nr_irqs; i++)
                beat_destruct_irq_plug(i);
 }
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 66ad93de1d55..c4e630576ff2 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -57,9 +57,9 @@ static int max_real_irqs;
 static DEFINE_RAW_SPINLOCK(pmac_pic_lock);
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
+/* The max irq number this driver deals with is 128; see max_irqs */
-static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
+static DECLARE_BITMAP(ppc_lost_interrupts, 128);
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+static DECLARE_BITMAP(ppc_cached_irq_mask, 128);
 static int pmac_irq_cascade = -1;
 static struct irq_domain *pmac_pic_host;
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index aadbe4f6d537..178a5f300bc9 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -30,9 +30,9 @@ config PPC_SPLPAR
          two or more partitions.
 config EEH
-        bool "PCI Extended Error Handling (EEH)" if EXPERT
+        bool
        depends on PPC_PSERIES && PCI
-        default y if !EXPERT
+        default y
 config PSERIES_MSI
       bool
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index d3be961e2ae7..10386b676d87 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -51,8 +51,7 @@
 static intctl_cpm2_t __iomem *cpm2_intctl;
 static struct irq_domain *cpm2_pic_host;
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
+static unsigned long ppc_cached_irq_mask[2]; /* 2 32-bit registers */
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
 static const u_char irq_to_siureg[] = {
        1, 1, 1, 1, 1, 1, 1, 1,
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index d5f5416be310..b724622c3a0b 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -18,69 +18,45 @@
 extern int cpm_get_irq(struct pt_regs *regs);
 static struct irq_domain *mpc8xx_pic_host;
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
+static unsigned long mpc8xx_cached_irq_mask;
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
 static sysconf8xx_t __iomem *siu_reg;
-int cpm_get_irq(struct pt_regs *regs);
+static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d)
+{
+        return 0x80000000 >> irqd_to_hwirq(d);
+}
 static void mpc8xx_unmask_irq(struct irq_data *d)
 {
-        int     bit, word;
+        mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-        ppc_cached_irq_mask[word] |= (1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
 }
 static void mpc8xx_mask_irq(struct irq_data *d)
 {
-        int     bit, word;
+        mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d);
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-        ppc_cached_irq_mask[word] &= ~(1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
 }
 static void mpc8xx_ack(struct irq_data *d)
 {
-        int     bit;
+        out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d));
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
-        bit = irq_nr & 0x1f;
-        out_be32(&siu_reg->sc_sipend, 1 << (31-bit));
 }
 static void mpc8xx_end_irq(struct irq_data *d)
 {
-        int bit, word;
+        mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-        ppc_cached_irq_mask[word] |= (1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
 }
 static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
-        if (flow_type & IRQ_TYPE_EDGE_FALLING) {
+        /* only external IRQ senses are programmable */
-                irq_hw_number_t hw = (unsigned int)irqd_to_hwirq(d);
+        if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) {
                unsigned int siel = in_be32(&siu_reg->sc_siel);
+                siel |= mpc8xx_irqd_to_bit(d);
-                /* only external IRQ senses are programmable */
+                out_be32(&siu_reg->sc_siel, siel);
-                if ((hw & 1) == 0) {
+                __irq_set_handler_locked(d->irq, handle_edge_irq);
-                        siel |= (0x80000000 >> hw);
-                        out_be32(&siu_reg->sc_siel, siel);
-                        __irq_set_handler_locked(d->irq, handle_edge_irq);
-                }
        }
        return 0;
 }
@@ -132,6 +108,9 @@ static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
                IRQ_TYPE_EDGE_FALLING,
        };
+        if (intspec[0] > 0x1f)
+                return 0;
        *out_hwirq = intspec[0];
        if (intsize > 1 && intspec[1] < 4)
                *out_flags = map_pic_senses[intspec[1]];
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 49a3ece1c6b3..702256a1ca11 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -22,6 +22,7 @@
 #include <linux/debugfs.h>
 #include <linux/slab.h>
 #include <linux/export.h>
+#include <asm/debug.h>
 #include <asm/prom.h>
 #include <asm/scom.h>
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index ea5e204e3450..cd1d18db92c6 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -188,6 +188,7 @@ void xics_migrate_irqs_away(void)
 {
        int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id();
        unsigned int irq, virq;
+        struct irq_desc *desc;
        /* If we used to be the default server, move to the new "boot_cpuid" */
        if (hw_cpu == xics_default_server)
@@ -202,8 +203,7 @@ void xics_migrate_irqs_away(void)
        /* Allow IPIs again... */
        icp_ops->set_priority(DEFAULT_PRIORITY);
-        for_each_irq(virq) {
+        for_each_irq_desc(virq, desc) {
-                struct irq_desc *desc;
                struct irq_chip *chip;
                long server;
                unsigned long flags;
@@ -212,9 +212,8 @@ void xics_migrate_irqs_away(void)
                /* We can't set affinity on ISA interrupts */
                if (virq < NUM_ISA_INTERRUPTS)
                        continue;
-                desc = irq_to_desc(virq);
                /* We only need to migrate enabled IRQS */
-                if (!desc || !desc->action)
+                if (!desc->action)
                        continue;
                if (desc->irq_data.domain != xics_host)
                        continue;
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index 37f2f4a55231..f4c1c20bcdf6 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -11,7 +11,7 @@
 #include <linux/types.h>
 #include <asm/cmpxchg.h>
-#define ATOMIC_INIT(i)  ( (atomic_t) { (i) } )
+#define ATOMIC_INIT(i)  { (i) }
 #define atomic_read(v)          (*(volatile int *)&(v)->counter)
 #define atomic_set(v,i)         ((v)->counter = (i))
diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index 324eef93c900..e99b104d967a 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -86,7 +86,7 @@ static noinline int vmalloc_fault(unsigned long address)
        pte_t *pte_k;
        /* Make sure we are in vmalloc/module/P3 area: */
-        if (!(address >= VMALLOC_START && address < P3_ADDR_MAX))
+        if (!(address >= P3SEG && address < P3_ADDR_MAX))
                return -1;
        /*
diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h
index 5d5a635530bd..32e6cbe8dff3 100644
--- a/arch/tile/include/asm/pci.h
+++ b/arch/tile/include/asm/pci.h
@@ -47,8 +47,8 @@ struct pci_controller {
 */
 #define PCI_DMA_BUS_IS_PHYS     1
-int __devinit tile_pci_init(void);
+int __init tile_pci_init(void);
-int __devinit pcibios_init(void);
+int __init pcibios_init(void);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index a1bb59eecc18..b56d12bf5900 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -141,7 +141,7 @@ static int __devinit tile_init_irqs(int controller_id,
 *
 * Returns the number of controllers discovered.
 */
-int __devinit tile_pci_init(void)
+int __init tile_pci_init(void)
 {
        int i;
@@ -287,7 +287,7 @@ static void __devinit fixup_read_and_payload_sizes(void)
 * The controllers have been set up by the time we get here, by a call to
 * tile_pci_init.
 */
-int __devinit pcibios_init(void)
+int __init pcibios_init(void)
 {
        int i;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d14cc6b79ad..c9866b0b77d8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -81,7 +81,7 @@ config X86
        select CLKEVT_I8253
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_IOMAP
-        select DCACHE_WORD_ACCESS if !DEBUG_PAGEALLOC
+        select DCACHE_WORD_ACCESS
 config INSTRUCTION_DECODER
        def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index a0559930a180..c85e3ac99bba 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -33,6 +33,9 @@
        __HEAD
 ENTRY(startup_32)
 #ifdef CONFIG_EFI_STUB
+        jmp     preferred_addr
+        .balign 0x10
        /*
         * We don't need the return address, so set up the stack so
         * efi_main() can find its arugments.
@@ -41,12 +44,17 @@ ENTRY(startup_32)
        call    efi_main
        cmpl    $0, %eax
-        je      preferred_addr
        movl    %eax, %esi
-        call    1f
+        jne     2f
 1:
+        /* EFI init failed, so hang. */
+        hlt
+        jmp     1b
+2:
+        call    3f
+3:
        popl    %eax
-        subl    $1b, %eax
+        subl    $3b, %eax
        subl    BP_pref_address(%esi), %eax
        add     BP_code32_start(%esi), %eax
        leal    preferred_addr(%eax), %eax
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 558d76ce23bc..87e03a13d8e3 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -200,18 +200,28 @@ ENTRY(startup_64)
         * entire text+data+bss and hopefully all of memory.
         */
 #ifdef CONFIG_EFI_STUB
-        pushq   %rsi
+        /*
+         * The entry point for the PE/COFF executable is 0x210, so only
+         * legacy boot loaders will execute this jmp.
+         */
+        jmp     preferred_addr
+        .org 0x210
        mov     %rcx, %rdi
        mov     %rdx, %rsi
        call    efi_main
-        popq    %rsi
-        cmpq    $0,%rax
-        je      preferred_addr
        movq    %rax,%rsi
-        call    1f
+        cmpq    $0,%rax
+        jne     2f
 1:
+        /* EFI init failed, so hang. */
+        hlt
+        jmp     1b
+2:
+        call    3f
+3:
        popq    %rax
-        subq    $1b, %rax
+        subq    $3b, %rax
        subq    BP_pref_address(%rsi), %rax
        add     BP_code32_start(%esi), %eax
        leaq    preferred_addr(%rax), %rax
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index d3c0b0277666..fb7117a4ade1 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -403,13 +403,11 @@ static void print_absolute_symbols(void)
        for (i = 0; i < ehdr.e_shnum; i++) {
                struct section *sec = &secs[i];
                char *sym_strtab;
-                Elf32_Sym *sh_symtab;
                int j;
                if (sec->shdr.sh_type != SHT_SYMTAB) {
                        continue;
                }
-                sh_symtab = sec->symtab;
                sym_strtab = sec->link->strtab;
                for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
                        Elf32_Sym *sym;
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index ed549767a231..24443a332083 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -205,8 +205,13 @@ int main(int argc, char ** argv)
        put_unaligned_le32(file_sz, &buf[pe_header + 0x50]);
 #ifdef CONFIG_X86_32
-        /* Address of entry point */
+        /*
-        put_unaligned_le32(i, &buf[pe_header + 0x28]);
+         * Address of entry point.
+         *
+         * The EFI stub entry point is +16 bytes from the start of
+         * the .text section.
+         */
+        put_unaligned_le32(i + 16, &buf[pe_header + 0x28]);
        /* .text size */
        put_unaligned_le32(file_sz, &buf[pe_header + 0xb0]);
@@ -217,9 +222,11 @@ int main(int argc, char ** argv)
        /*
         * Address of entry point. startup_32 is at the beginning and
         * the 64-bit entry point (startup_64) is always 512 bytes
-         * after.
+         * after. The EFI stub entry point is 16 bytes after that, as
+         * the first instruction allows legacy loaders to jump over
+         * the EFI stub initialisation
         */
-        put_unaligned_le32(i + 512, &buf[pe_header + 0x28]);
+        put_unaligned_le32(i + 528, &buf[pe_header + 0x28]);
        /* .text size */
        put_unaligned_le32(file_sz, &buf[pe_header + 0xc0]);
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 4824fb45560f..07b3a68d2d29 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -294,8 +294,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
        /* OK, This is the point of no return */
        set_personality(PER_LINUX);
-        set_thread_flag(TIF_IA32);
+        set_personality_ia32(false);
-        current->mm->context.ia32_compat = 1;
        setup_new_exec(bprm);
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
index 3427b7798dbc..7ef7c3020e5c 100644
--- a/arch/x86/include/asm/posix_types.h
+++ b/arch/x86/include/asm/posix_types.h
@@ -7,9 +7,9 @@
 #else
 # ifdef __i386__
 #  include "posix_types_32.h"
-# elif defined(__LP64__)
+# elif defined(__ILP32__)
-#  include "posix_types_64.h"
-# else
 #  include "posix_types_x32.h"
+# else
+#  include "posix_types_64.h"
 # endif
 #endif
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index 4a085383af27..5ca71c065eef 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -257,7 +257,7 @@ struct sigcontext {
        __u64 oldmask;
        __u64 cr2;
        struct _fpstate __user *fpstate;        /* zero when no FPU context */
-#ifndef __LP64__
+#ifdef __ILP32__
        __u32 __fpstate_pad;
 #endif
        __u64 reserved1[8];
diff --git a/arch/x86/include/asm/siginfo.h b/arch/x86/include/asm/siginfo.h
index fc1aa5535646..34c47b3341c0 100644
--- a/arch/x86/include/asm/siginfo.h
+++ b/arch/x86/include/asm/siginfo.h
@@ -2,7 +2,13 @@
 #define _ASM_X86_SIGINFO_H
 #ifdef __x86_64__
-# define __ARCH_SI_PREAMBLE_SIZE        (4 * sizeof(int))
+# ifdef __ILP32__ /* x32 */
+typedef long long __kernel_si_clock_t __attribute__((aligned(4)));
+#  define __ARCH_SI_CLOCK_T             __kernel_si_clock_t
+#  define __ARCH_SI_ATTRIBUTES          __attribute__((aligned(8)))
+# else /* x86-64 */
+#  define __ARCH_SI_PREAMBLE_SIZE       (4 * sizeof(int))
+# endif
 #endif
 #include <asm-generic/siginfo.h>
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 37cdc9d99bb1..4437001d8e3d 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -63,10 +63,10 @@
 #else
 # ifdef __i386__
 #  include <asm/unistd_32.h>
-# elif defined(__LP64__)
+# elif defined(__ILP32__)
-#  include <asm/unistd_64.h>
-# else
 #  include <asm/unistd_x32.h>
+# else
+#  include <asm/unistd_64.h>
 # endif
 #endif
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
index 6fe6767b7124..e58f03b206c3 100644
--- a/arch/x86/include/asm/word-at-a-time.h
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -43,4 +43,37 @@ static inline unsigned long has_zero(unsigned long a)
        return ((a - REPEAT_BYTE(0x01)) & ~a) & REPEAT_BYTE(0x80);
 }
+/*
+ * Load an unaligned word from kernel space.
+ *
+ * In the (very unlikely) case of the word being a page-crosser
+ * and the next page not being mapped, take the exception and
+ * return zeroes in the non-existing part.
+ */
+static inline unsigned long load_unaligned_zeropad(const void *addr)
+{
+        unsigned long ret, dummy;
+        asm(
+                "1:\tmov %2,%0\n"
+                "2:\n"
+                ".section .fixup,\"ax\"\n"
+                "3:\t"
+                "lea %2,%1\n\t"
+                "and %3,%1\n\t"
+                "mov (%1),%0\n\t"
+                "leal %2,%%ecx\n\t"
+                "andl %4,%%ecx\n\t"
+                "shll $3,%%ecx\n\t"
+                "shr %%cl,%0\n\t"
+                "jmp 2b\n"
+                ".previous\n"
+                _ASM_EXTABLE(1b, 3b)
+                :"=&r" (ret),"=&c" (dummy)
+                :"m" (*(unsigned long *)addr),
+                 "i" (-sizeof(unsigned long)),
+                 "i" (sizeof(unsigned long)-1));
+        return ret;
+}
 #endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index baaca8defec8..764b66a4cf89 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -195,6 +195,5 @@ extern struct x86_msi_ops x86_msi;
 extern void x86_init_noop(void);
 extern void x86_init_uint_noop(unsigned int unused);
-extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node);
 #endif
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 103b6ab368d3..146a49c763a4 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -24,6 +24,10 @@ unsigned long acpi_realmode_flags;
 static char temp_stack[4096];
 #endif
+asmlinkage void acpi_enter_s3(void)
+{
+        acpi_enter_sleep_state(3, wake_sleep_flags);
+}
 /**
 * acpi_suspend_lowlevel - save kernel state
 *
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index 416d4be13fef..d68677a2a010 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -3,12 +3,16 @@
 */
 #include <asm/trampoline.h>
+#include <linux/linkage.h>
 extern unsigned long saved_video_mode;
 extern long saved_magic;
 extern int wakeup_pmode_return;
+extern u8 wake_sleep_flags;
+extern asmlinkage void acpi_enter_s3(void);
 extern unsigned long acpi_copy_wakeup_routine(unsigned long);
 extern void wakeup_long64(void);
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 13ab720573e3..72610839f03b 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -74,9 +74,7 @@ restore_registers:
 ENTRY(do_suspend_lowlevel)
        call    save_processor_state
        call    save_registers
-        pushl   $3
+        call    acpi_enter_s3
-        call    acpi_enter_sleep_state
-        addl    $4, %esp
 #       In case of S3 failure, we'll emerge here.  Jump
 #       to ret_point to recover
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 8ea5164cbd04..014d1d28c397 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -71,9 +71,7 @@ ENTRY(do_suspend_lowlevel)
        movq    %rsi, saved_rsi
        addq    $8, %rsp
-        movl    $3, %edi
+        call    acpi_enter_s3
-        xorl    %eax, %eax
-        call    acpi_enter_sleep_state
        /* in case something went wrong, restore the machine status and go on */
        jmp     resume_point
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 11544d8f1e97..edc24480469f 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1637,9 +1637,11 @@ static int __init apic_verify(void)
        mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
        /* The BIOS may have set up the APIC at some other address */
-        rdmsr(MSR_IA32_APICBASE, l, h);
+        if (boot_cpu_data.x86 >= 6) {
-        if (l & MSR_IA32_APICBASE_ENABLE)
+                rdmsr(MSR_IA32_APICBASE, l, h);
-                mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
+                if (l & MSR_IA32_APICBASE_ENABLE)
+                        mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
+        }
        pr_info("Found and enabled local APIC!\n");
        return 0;
@@ -1657,13 +1659,15 @@ int __init apic_force_enable(unsigned long addr)
         * MSR. This can only be done in software for Intel P6 or later
         * and AMD K7 (Model > 1) or later.
         */
-        rdmsr(MSR_IA32_APICBASE, l, h);
+        if (boot_cpu_data.x86 >= 6) {
-        if (!(l & MSR_IA32_APICBASE_ENABLE)) {
+                rdmsr(MSR_IA32_APICBASE, l, h);
-                pr_info("Local APIC disabled by BIOS -- reenabling.\n");
+                if (!(l & MSR_IA32_APICBASE_ENABLE)) {
-                l &= ~MSR_IA32_APICBASE_BASE;
+                        pr_info("Local APIC disabled by BIOS -- reenabling.\n");
-                l |= MSR_IA32_APICBASE_ENABLE | addr;
+                        l &= ~MSR_IA32_APICBASE_BASE;
-                wrmsr(MSR_IA32_APICBASE, l, h);
+                        l |= MSR_IA32_APICBASE_ENABLE | addr;
-                enabled_via_apicbase = 1;
+                        wrmsr(MSR_IA32_APICBASE, l, h);
+                        enabled_via_apicbase = 1;
+                }
        }
        return apic_verify();
 }
@@ -2209,10 +2213,12 @@ static void lapic_resume(void)
                 * FIXME! This will be wrong if we ever support suspend on
                 * SMP! We'll need to do this as part of the CPU restore!
                 */
-                rdmsr(MSR_IA32_APICBASE, l, h);
+                if (boot_cpu_data.x86 >= 6) {
-                l &= ~MSR_IA32_APICBASE_BASE;
+                        rdmsr(MSR_IA32_APICBASE, l, h);
-                l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
+                        l &= ~MSR_IA32_APICBASE_BASE;
-                wrmsr(MSR_IA32_APICBASE, l, h);
+                        l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
+                        wrmsr(MSR_IA32_APICBASE, l, h);
+                }
        }
        maxlvt = lapic_get_maxlvt();
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 899803e03214..23e75422e013 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -207,8 +207,11 @@ static void __init map_csrs(void)
 static void fixup_cpu_id(struct cpuinfo_x86 *c, int node)
 {
-        c->phys_proc_id = node;
-        per_cpu(cpu_llc_id, smp_processor_id()) = node;
+        if (c->phys_proc_id != node) {
+                c->phys_proc_id = node;
+                per_cpu(cpu_llc_id, smp_processor_id()) = node;
+        }
 }
 static int __init numachip_system_init(void)
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 8a778db45e3a..991e315f4227 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
        if (x2apic_phys)
                return x2apic_enabled();
+        else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
+                (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
+                x2apic_enabled()) {
+                printk(KERN_DEBUG "System requires x2apic physical mode\n");
+                return 1;
+        }
        else
                return 0;
 }
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 0a44b90602b0..146bb6218eec 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -26,7 +26,8 @@
 *      contact AMD for precise details and a CPU swap.
 *
 *      See     http://www.multimania.com/poulot/k6bug.html
- *              http://www.amd.com/K6/k6docs/revgd.html
+ *      and     section 2.6.2 of "AMD-K6 Processor Revision Guide - Model 6"
+ *              (Publication # 21266  Issue Date: August 1998)
 *
 *      The following test is erm.. interesting. AMD neglected to up
 *      the chip setting when fixing the bug but they also tweaked some
@@ -94,7 +95,6 @@ static void __cpuinit init_amd_k6(struct cpuinfo_x86 *c)
                                "system stability may be impaired when more than 32 MB are used.\n");
                else
                        printk(KERN_CONT "probably OK (after B9730xxxx).\n");
-                printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n");
        }
        /* K6 with old style WHCR */
@@ -353,10 +353,11 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
                node = per_cpu(cpu_llc_id, cpu);
        /*
-         * If core numbers are inconsistent, it's likely a multi-fabric platform,
+         * On multi-fabric platform (e.g. Numascale NumaChip) a
-         * so invoke platform-specific handler
+         * platform-specific handler needs to be called to fixup some
+         * IDs of the CPU.
         */
-        if (c->phys_proc_id != node)
+        if (x86_cpuinit.fixup_cpu_id)
                x86_cpuinit.fixup_cpu_id(c, node);
        if (!node_online(node)) {
@@ -579,6 +580,24 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
                }
        }
+        /* re-enable TopologyExtensions if switched off by BIOS */
+        if ((c->x86 == 0x15) &&
+            (c->x86_model >= 0x10) && (c->x86_model <= 0x1f) &&
+            !cpu_has(c, X86_FEATURE_TOPOEXT)) {
+                u64 val;
+                if (!rdmsrl_amd_safe(0xc0011005, &val)) {
+                        val |= 1ULL << 54;
+                        wrmsrl_amd_safe(0xc0011005, val);
+                        rdmsrl(0xc0011005, val);
+                        if (val & (1ULL << 54)) {
+                                set_cpu_cap(c, X86_FEATURE_TOPOEXT);
+                                printk(KERN_INFO FW_INFO "CPU: Re-enabling "
+                                  "disabled Topology Extensions Support\n");
+                        }
+                }
+        }
        cpu_detect_cache_sizes(c);
        /* Multi core CPU? */
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 67e258362a3d..cf79302198a6 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1163,15 +1163,6 @@ static void dbg_restore_debug_regs(void)
 #endif /* ! CONFIG_KGDB */
 /*
- * Prints an error where the NUMA and configured core-number mismatch and the
- * platform didn't override this to fix it up
- */
-void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node)
-{
-        pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id);
-}
-/*
 * cpu_init() initializes state that is per-CPU. Some data is already
 * initialized (naturally) in the bootstrap process, such as the GDT
 * and IDT. We reload them nevertheless, this function acts as a
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 73d08ed98a64..b8f3653dddbc 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -433,14 +433,14 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot,
        /*  check if @slot is already used or the index is already disabled */
        ret = amd_get_l3_disable_slot(nb, slot);
        if (ret >= 0)
-                return -EINVAL;
+                return -EEXIST;
        if (index > nb->l3_cache.indices)
                return -EINVAL;
        /* check whether the other slot has disabled the same index already */
        if (index == amd_get_l3_disable_slot(nb, !slot))
-                return -EINVAL;
+                return -EEXIST;
        amd_l3_disable_index(nb, cpu, slot, index);
@@ -468,8 +468,8 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf,
        err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val);
        if (err) {
                if (err == -EEXIST)
-                        printk(KERN_WARNING "L3 disable slot %d in use!\n",
+                        pr_warning("L3 slot %d in use/index already disabled!\n",
-                                            slot);
+                                   slot);
                return err;
        }
        return count;
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 7734bcbb5a3a..2d6e6498c176 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -235,6 +235,7 @@ int init_fpu(struct task_struct *tsk)
        if (tsk_used_math(tsk)) {
                if (HAVE_HWFP && tsk == current)
                        unlazy_fpu(tsk);
+                tsk->thread.fpu.last_cpu = ~0;
                return 0;
        }
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 73465aab28f8..8a2ce8fd41c0 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -82,11 +82,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
 {
        struct cpuinfo_x86 *c = &cpu_data(cpu);
-        if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
-                pr_warning("CPU%d: family %d not supported\n", cpu, c->x86);
-                return -1;
-        }
        csig->rev = c->microcode;
        pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev);
@@ -380,6 +375,13 @@ static struct microcode_ops microcode_amd_ops = {
 struct microcode_ops * __init init_amd_microcode(void)
 {
+        struct cpuinfo_x86 *c = &cpu_data(0);
+        if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
+                pr_warning("AMD CPU family 0x%x not supported\n", c->x86);
+                return NULL;
+        }
        patch = (void *)get_zeroed_page(GFP_KERNEL);
        if (!patch)
                return NULL;
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 87a0f8688301..c9bda6d6035c 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -419,10 +419,8 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif)
        if (err)
                return err;
-        if (microcode_init_cpu(cpu) == UCODE_ERROR) {
+        if (microcode_init_cpu(cpu) == UCODE_ERROR)
-                sysfs_remove_group(&dev->kobj, &mc_attr_group);
                return -EINVAL;
-        }
        return err;
 }
@@ -528,11 +526,11 @@ static int __init microcode_init(void)
                microcode_ops = init_intel_microcode();
        else if (c->x86_vendor == X86_VENDOR_AMD)
                microcode_ops = init_amd_microcode();
+        else
-        if (!microcode_ops) {
                pr_err("no support for this CPU vendor\n");
+        if (!microcode_ops)
                return -ENODEV;
-        }
        microcode_pdev = platform_device_register_simple("microcode", -1,
                                                         NULL, 0);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 733ca39f367e..43d8b48b23e6 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -423,6 +423,7 @@ void set_personality_ia32(bool x32)
                current_thread_info()->status |= TS_COMPAT;
        }
 }
+EXPORT_SYMBOL_GPL(set_personality_ia32);
 unsigned long get_wchan(struct task_struct *p)
 {
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 71f4727da373..5a98aa272184 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -185,10 +185,22 @@ void __init setup_per_cpu_areas(void)
 #endif
        rc = -EINVAL;
        if (pcpu_chosen_fc != PCPU_FC_PAGE) {
-                const size_t atom_size = cpu_has_pse ? PMD_SIZE : PAGE_SIZE;
                const size_t dyn_size = PERCPU_MODULE_RESERVE +
                        PERCPU_DYNAMIC_RESERVE - PERCPU_FIRST_CHUNK_RESERVE;
+                size_t atom_size;
+                /*
+                 * On 64bit, use PMD_SIZE for atom_size so that embedded
+                 * percpu areas are aligned to PMD.  This, in the future,
+                 * can also allow using PMD mappings in vmalloc area.  Use
+                 * PAGE_SIZE on 32bit as vmalloc space is highly contended
+                 * and large vmalloc area allocs can easily fail.
+                 */
+#ifdef CONFIG_X86_64
+                atom_size = PMD_SIZE;
+#else
+                atom_size = PAGE_SIZE;
+#endif
                rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
                                            dyn_size, atom_size,
                                            pcpu_cpu_distance,
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index e9f265fd79ae..9cf71d0b2d37 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -93,7 +93,6 @@ struct x86_init_ops x86_init __initdata = {
 struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
        .early_percpu_clock_init        = x86_init_noop,
        .setup_percpu_clockev           = setup_secondary_APIC_clock,
-        .fixup_cpu_id                   = x86_default_fixup_cpu_id,
 };
 static void default_nmi_init(void) { };
diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c
index 66d377e334f7..646e3b5b4bb6 100644
--- a/arch/x86/platform/geode/net5501.c
+++ b/arch/x86/platform/geode/net5501.c
@@ -63,7 +63,7 @@ static struct gpio_led net5501_leds[] = {
                .name = "net5501:1",
                .gpio = 6,
                .default_trigger = "default-on",
-                .active_low = 1,
+                .active_low = 0,
        },
 };
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index e0a37233c0af..e31bcd8f2eee 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -805,7 +805,7 @@ void intel_scu_devices_create(void)
                } else
                        i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
        }
-        intel_scu_notifier_post(SCU_AVAILABLE, 0L);
+        intel_scu_notifier_post(SCU_AVAILABLE, NULL);
 }
 EXPORT_SYMBOL_GPL(intel_scu_devices_create);
@@ -814,7 +814,7 @@ void intel_scu_devices_destroy(void)
 {
        int i;
-        intel_scu_notifier_post(SCU_DOWN, 0L);
+        intel_scu_notifier_post(SCU_DOWN, NULL);
        for (i = 0; i < ipc_next_dev; i++)
                platform_device_del(ipc_devs[i]);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 4f51bebac02c..95dccce8e979 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -63,6 +63,7 @@
 #include <asm/stackprotector.h>
 #include <asm/hypervisor.h>
 #include <asm/mwait.h>
+#include <asm/pci_x86.h>
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
@@ -261,7 +262,8 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
 static bool __init xen_check_mwait(void)
 {
-#ifdef CONFIG_ACPI
+#if defined(CONFIG_ACPI) && !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) && \
+        !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
        struct xen_platform_op op = {
                .cmd                    = XENPF_set_processor_pminfo,
                .u.set_pminfo.id        = -1,
@@ -349,7 +351,6 @@ static void __init xen_init_cpuid_mask(void)
        /* Xen will set CR4.OSXSAVE if supported and not disabled by force */
        if ((cx & xsave_mask) != xsave_mask)
                cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */
        if (xen_check_mwait())
                cpuid_leaf1_ecx_set_mask = (1 << (X86_FEATURE_MWAIT % 32));
 }
@@ -809,9 +810,40 @@ static void xen_io_delay(void)
 }
 #ifdef CONFIG_X86_LOCAL_APIC
+static unsigned long xen_set_apic_id(unsigned int x)
+{
+        WARN_ON(1);
+        return x;
+}
+static unsigned int xen_get_apic_id(unsigned long x)
+{
+        return ((x)>>24) & 0xFFu;
+}
 static u32 xen_apic_read(u32 reg)
 {
-        return 0;
+        struct xen_platform_op op = {
+                .cmd = XENPF_get_cpuinfo,
+                .interface_version = XENPF_INTERFACE_VERSION,
+                .u.pcpu_info.xen_cpuid = 0,
+        };
+        int ret = 0;
+        /* Shouldn't need this as APIC is turned off for PV, and we only
+         * get called on the bootup processor. But just in case. */
+        if (!xen_initial_domain() || smp_processor_id())
+                return 0;
+        if (reg == APIC_LVR)
+                return 0x10;
+        if (reg != APIC_ID)
+                return 0;
+        ret = HYPERVISOR_dom0_op(&op);
+        if (ret)
+                return 0;
+        return op.u.pcpu_info.apic_id << 24;
 }
 static void xen_apic_write(u32 reg, u32 val)
@@ -849,6 +881,8 @@ static void set_xen_basic_apic_ops(void)
        apic->icr_write = xen_apic_icr_write;
        apic->wait_icr_idle = xen_apic_wait_icr_idle;
        apic->safe_wait_icr_idle = xen_safe_apic_wait_icr_idle;
+        apic->set_apic_id = xen_set_apic_id;
+        apic->get_apic_id = xen_get_apic_id;
 }
 #endif
@@ -1365,8 +1399,10 @@ asmlinkage void __init xen_start_kernel(void)
                /* Make sure ACS will be enabled */
                pci_request_acs();
        }
-                
+#ifdef CONFIG_PCI
+        /* PCI BIOS service won't work from a PV guest. */
+        pci_probe &= ~PCI_PROBE_BIOS;
+#endif
        xen_raw_console_write("about to get started...\n");
        xen_setup_runstate_info(0);
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index b8e279479a6b..69f5857660ac 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -353,8 +353,13 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
 {
        if (val & _PAGE_PRESENT) {
                unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
+                unsigned long pfn = mfn_to_pfn(mfn);
                pteval_t flags = val & PTE_FLAGS_MASK;
-                val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
+                if (unlikely(pfn == ~0))
+                        val = flags & ~_PAGE_PRESENT;
+                else
+                        val = ((pteval_t)pfn << PAGE_SHIFT) | flags;
        }
        return val;
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 5fac6919b957..0503c0c493a9 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -178,6 +178,7 @@ static void __init xen_fill_possible_map(void)
 static void __init xen_filter_cpu_maps(void)
 {
        int i, rc;
+        unsigned int subtract = 0;
        if (!xen_initial_domain())
                return;
@@ -192,8 +193,22 @@ static void __init xen_filter_cpu_maps(void)
                } else {
                        set_cpu_possible(i, false);
                        set_cpu_present(i, false);
+                        subtract++;
                }
        }
+#ifdef CONFIG_HOTPLUG_CPU
+        /* This is akin to using 'nr_cpus' on the Linux command line.
+         * Which is OK as when we use 'dom0_max_vcpus=X' we can only
+         * have up to X, while nr_cpu_ids is greater than X. This
+         * normally is not a problem, except when CPU hotplugging
+         * is involved and then there might be more than X CPUs
+         * in the guest - which will not work as there is no
+         * hypercall to expand the max number of VCPUs an already
+         * running guest has. So cap it up to X. */
+        if (subtract)
+                nr_cpu_ids = nr_cpu_ids - subtract;
+#endif
 }
 static void __init xen_smp_prepare_boot_cpu(void)
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index 79d7362ad6d1..3e45aa000718 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -96,7 +96,7 @@ ENTRY(xen_restore_fl_direct)
        /* check for unmasked and pending */
        cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending
-        jz 1f
+        jnz 1f
 2:      call check_events
 1:
 ENDPATCH(xen_restore_fl_direct)
diff --git a/arch/xtensa/include/asm/hardirq.h b/arch/xtensa/include/asm/hardirq.h
index 26664cef8f11..91695a135498 100644
--- a/arch/xtensa/include/asm/hardirq.h
+++ b/arch/xtensa/include/asm/hardirq.h
@@ -11,9 +11,6 @@
 #ifndef _XTENSA_HARDIRQ_H
 #define _XTENSA_HARDIRQ_H
-void ack_bad_irq(unsigned int irq);
-#define ack_bad_irq ack_bad_irq
 #include <asm-generic/hardirq.h>
 #endif  /* _XTENSA_HARDIRQ_H */
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index d04cd3a625fa..4beb43c087d3 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -14,6 +14,7 @@
 #ifdef __KERNEL__
 #include <asm/byteorder.h>
 #include <asm/page.h>
+#include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index b69b000349fc..d78869a00b11 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -496,6 +496,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
        if (signr > 0) {
+                int ret;
                /* Are we from a system call? */