Merge tag 'v3.5-rc7' into regulator-drivers

Linux 3.5-rc7

71 files changed, 413 insertions, 162 deletions

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 9854ff4279e0..11828e632532 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -176,7 +176,6 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_DEVICEFS=y
 CONFIG_USB_SUSPEND=y
 CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_WDM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_LIBUSUAL=y
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 68374ba6a943..c79f61faa3a5 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -243,7 +243,7 @@ typedef struct {
 
 #define ATOMIC64_INIT(i) { (i) }
 
-static inline u64 atomic64_read(atomic64_t *v)
+static inline u64 atomic64_read(const atomic64_t *v)
 {
         u64 result;
 
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
index 3d2220498abc..6ddbe446425e 100644
--- a/arch/arm/include/asm/domain.h
+++ b/arch/arm/include/asm/domain.h
@@ -60,13 +60,13 @@
 #ifndef __ASSEMBLY__
 
 #ifdef CONFIG_CPU_USE_DOMAINS
-#define set_domain(x)                                   \
-        do {                                            \
-        __asm__ __volatile__(                           \
-        "mcr    p15, 0, %0, c3, c0      @ set domain"   \
-          : : "r" (x));                                 \
-        isb();                                          \
-        } while (0)
+static inline void set_domain(unsigned val)
+{
+        asm volatile(
+        "mcr    p15, 0, %0, c3, c0      @ set domain"
+          : : "r" (val));
+        isb();
+}
 
 #define modify_domain(dom,type)                                 \
         do {                                                    \
@@ -78,8 +78,8 @@
         } while (0)
 
 #else
-#define set_domain(x)           do { } while (0)
-#define modify_domain(dom,type) do { } while (0)
+static inline void set_domain(unsigned val) { }
+static inline void modify_domain(unsigned dom, unsigned type)   { }
 #endif
 
 /*
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index b79f8e97f775..af7b0bda3355 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_NOTIFY_RESUME       2       /* callback before returning to user */
 #define TIF_SYSCALL_TRACE       8
 #define TIF_SYSCALL_AUDIT       9
-#define TIF_SYSCALL_RESTARTSYS  10
 #define TIF_POLLING_NRFLAG      16
 #define TIF_USING_IWMMXT        17
 #define TIF_MEMDIE              18      /* is terminating due to OOM killer */
@@ -164,11 +163,9 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
 #define _TIF_USING_IWMMXT       (1 << TIF_USING_IWMMXT)
 #define _TIF_SECCOMP            (1 << TIF_SECCOMP)
-#define _TIF_SYSCALL_RESTARTSYS (1 << TIF_SYSCALL_RESTARTSYS)
 
 /* Checks for any syscall work in entry-common.S */
-#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
-                           _TIF_SYSCALL_RESTARTSYS)
+#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
 
 /*
  * Change these and you break ASM code in entry-common.S
diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c
index ba32b393b3f0..38c1a3b103a0 100644
--- a/arch/arm/kernel/kprobes-test-arm.c
+++ b/arch/arm/kernel/kprobes-test-arm.c
@@ -187,8 +187,8 @@ void kprobe_arm_test_cases(void)
         TEST_BF_R ("mov pc, r",0,2f,"")
         TEST_BF_RR("mov pc, r",0,2f,", asl r",1,0,"")
         TEST_BB(   "sub pc, pc, #1b-2b+8")
-#if __LINUX_ARM_ARCH__ >= 6
-        TEST_BB(   "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before ARMv6 */
+#if __LINUX_ARM_ARCH__ == 6 && !defined(CONFIG_CPU_V7)
+        TEST_BB(   "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before and after ARMv6 */
 #endif
         TEST_BB_R( "sub pc, pc, r",14, 1f-2f+8,"")
         TEST_BB_R( "rsb pc, r",14,1f-2f+8,", pc")
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 186c8cb982c5..a02eada3aa5d 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event)
              event_requires_mode_exclusion(&event->attr)) {
                 pr_debug("ARM performance counters do not support "
                          "mode exclusion\n");
-                return -EPERM;
+                return -EOPNOTSUPP;
         }
 
         /*
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 5700a7ae7f0b..14e38261cd31 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -25,7 +25,6 @@
 #include <linux/regset.h>
 #include <linux/audit.h>
 #include <linux/tracehook.h>
-#include <linux/unistd.h>
 
 #include <asm/pgtable.h>
 #include <asm/traps.h>
@@ -918,8 +917,6 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
                 audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
                                     regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
 
-        if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS))
-                scno = __NR_restart_syscall - __NR_SYSCALL_BASE;
         if (!test_thread_flag(TIF_SYSCALL_TRACE))
                 return scno;
 
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index fd2392a17ac1..536c5d6b340b 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -27,6 +27,7 @@
  */
 #define SWI_SYS_SIGRETURN       (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
 #define SWI_SYS_RT_SIGRETURN    (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
+#define SWI_SYS_RESTART         (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE)
 
 /*
  * With EABI, the syscall number has to be loaded into r7.
@@ -47,6 +48,18 @@ const unsigned long sigreturn_codes[7] = {
 };
 
 /*
+ * Either we support OABI only, or we have EABI with the OABI
+ * compat layer enabled.  In the later case we don't know if
+ * user space is EABI or not, and if not we must not clobber r7.
+ * Always using the OABI syscall solves that issue and works for
+ * all those cases.
+ */
+const unsigned long syscall_restart_code[2] = {
+        SWI_SYS_RESTART,        /* swi  __NR_restart_syscall */
+        0xe49df004,             /* ldr  pc, [sp], #4 */
+};
+
+/*
  * atomically swap in the new signal mask, and wait for a signal.
  */
 asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask)
@@ -592,10 +605,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
                 case -ERESTARTNOHAND:
                 case -ERESTARTSYS:
                 case -ERESTARTNOINTR:
-                case -ERESTART_RESTARTBLOCK:
                         regs->ARM_r0 = regs->ARM_ORIG_r0;
                         regs->ARM_pc = restart_addr;
                         break;
+                case -ERESTART_RESTARTBLOCK:
+                        regs->ARM_r0 = -EINTR;
+                        break;
                 }
         }
 
@@ -611,14 +626,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
                  * debugger has chosen to restart at a different PC.
                  */
                 if (regs->ARM_pc == restart_addr) {
-                        if (retval == -ERESTARTNOHAND ||
-                            retval == -ERESTART_RESTARTBLOCK
+                        if (retval == -ERESTARTNOHAND
                             || (retval == -ERESTARTSYS
                                 && !(ka.sa.sa_flags & SA_RESTART))) {
                                 regs->ARM_r0 = -EINTR;
                                 regs->ARM_pc = continue_addr;
                         }
-                        clear_thread_flag(TIF_SYSCALL_RESTARTSYS);
                 }
 
                 handle_signal(signr, &ka, &info, regs);
@@ -632,8 +645,29 @@ static void do_signal(struct pt_regs *regs, int syscall)
                  * ignore the restart.
                  */
                 if (retval == -ERESTART_RESTARTBLOCK
-                    && regs->ARM_pc == restart_addr)
-                        set_thread_flag(TIF_SYSCALL_RESTARTSYS);
+                    && regs->ARM_pc == continue_addr) {
+                        if (thumb_mode(regs)) {
+                                regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE;
+                                regs->ARM_pc -= 2;
+                        } else {
+#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT)
+                                regs->ARM_r7 = __NR_restart_syscall;
+                                regs->ARM_pc -= 4;
+#else
+                                u32 __user *usp;
+
+                                regs->ARM_sp -= 4;
+                                usp = (u32 __user *)regs->ARM_sp;
+
+                                if (put_user(regs->ARM_pc, usp) == 0) {
+                                        regs->ARM_pc = KERN_RESTART_CODE;
+                                } else {
+                                        regs->ARM_sp += 4;
+                                        force_sigsegv(0, current);
+                                }
+#endif
+                        }
+                }
         }
 
         restore_saved_sigmask();
diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h
index 5ff067b7c752..6fcfe8398aa4 100644
--- a/arch/arm/kernel/signal.h
+++ b/arch/arm/kernel/signal.h
@@ -8,5 +8,7 @@
  * published by the Free Software Foundation.
  */
 #define KERN_SIGRETURN_CODE     (CONFIG_VECTORS_BASE + 0x00000500)
+#define KERN_RESTART_CODE       (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
 
 extern const unsigned long sigreturn_codes[7];
+extern const unsigned long syscall_restart_code[2];
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 4928d89758f4..3647170e9a16 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -820,6 +820,8 @@ void __init early_trap_init(void *vectors_base)
          */
         memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
                sigreturn_codes, sizeof(sigreturn_codes));
+        memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE),
+               syscall_restart_code, sizeof(syscall_restart_code));
 
         flush_icache_range(vectors, vectors + PAGE_SIZE);
         modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 43a31fb06318..36ff15bbfdd4 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -183,7 +183,9 @@ SECTIONS
         }
 #endif
 
+#ifdef CONFIG_SMP
         PERCPU_SECTION(L1_CACHE_BYTES)
+#endif
 
 #ifdef CONFIG_XIP_KERNEL
         __data_loc = ALIGN(4);          /* location in binary */
diff --git a/arch/arm/mach-dove/include/mach/bridge-regs.h b/arch/arm/mach-dove/include/mach/bridge-regs.h
index 226949dc4ac0..f953bb54aa9d 100644
--- a/arch/arm/mach-dove/include/mach/bridge-regs.h
+++ b/arch/arm/mach-dove/include/mach/bridge-regs.h
@@ -50,5 +50,6 @@
 #define POWER_MANAGEMENT        (BRIDGE_VIRT_BASE | 0x011c)
 
 #define TIMER_VIRT_BASE         (BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE         (BRIDGE_PHYS_BASE | 0x0300)
 
 #endif
diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h
index ad1165d488c1..d52b0ef313b7 100644
--- a/arch/arm/mach-dove/include/mach/dove.h
+++ b/arch/arm/mach-dove/include/mach/dove.h
@@ -78,6 +78,7 @@
 
 /* North-South Bridge */
 #define BRIDGE_VIRT_BASE        (DOVE_SB_REGS_VIRT_BASE | 0x20000)
+#define BRIDGE_PHYS_BASE        (DOVE_SB_REGS_PHYS_BASE | 0x20000)
 
 /* Cryptographic Engine */
 #define DOVE_CRYPT_PHYS_BASE    (DOVE_SB_REGS_PHYS_BASE | 0x30000)
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index e9fafcf163de..373c3c00d24c 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -119,7 +119,9 @@ static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
                                                 struct exynos_pm_domain *pd)
 {
         if (pdev->dev.bus) {
-                if (pm_genpd_add_device(&pd->pd, &pdev->dev))
+                if (!pm_genpd_add_device(&pd->pd, &pdev->dev))
+                        pm_genpd_dev_need_restore(&pdev->dev, true);
+                else
                         pr_info("%s: error in adding %s device to %s power"
                                 "domain\n", __func__, dev_name(&pdev->dev),
                                 pd->name);
@@ -151,9 +153,12 @@ static __init int exynos4_pm_init_power_domain(void)
         if (of_have_populated_dt())
                 return exynos_pm_dt_parse_domains();
 
-        for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++)
-                pm_genpd_init(&exynos4_pm_domains[idx]->pd, NULL,
-                                exynos4_pm_domains[idx]->is_off);
+        for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++) {
+                struct exynos_pm_domain *pd = exynos4_pm_domains[idx];
+                int on = __raw_readl(pd->base + 0x4) & S5P_INT_LOCAL_PWR_EN;
+
+                pm_genpd_init(&pd->pd, NULL, !on);
+        }
 
 #ifdef CONFIG_S5P_DEV_FIMD0
         exynos_pm_add_dev_to_genpd(&s5p_device_fimd0, &exynos4_pd_lcd0);
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index 920a8cc42726..c6422fb10bae 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -201,7 +201,6 @@ int __init mx35_clocks_init()
                         pr_err("i.MX35 clk %d: register failed with %ld\n",
                                 i, PTR_ERR(clk[i]));
 
-
         clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
         clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
         clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@@ -264,6 +263,14 @@ int __init mx35_clocks_init()
         clk_prepare_enable(clk[iim_gate]);
         clk_prepare_enable(clk[emi_gate]);
 
+        /*
+         * SCC is needed to boot via mmc after a watchdog reset. The clock code
+         * before conversion to common clk also enabled UART1 (which isn't
+         * handled here and not needed for mmc) and IIM (which is enabled
+         * unconditionally above).
+         */
+        clk_prepare_enable(clk[scc_gate]);
+
         imx_print_silicon_rev("i.MX35", mx35_revision());
 
 #ifdef CONFIG_MXC_USE_EPIT
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index f76edb96a48a..ba09552fe5fe 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -38,7 +38,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/system.h>
+#include <asm/system_info.h>
 #include <mach/common.h>
 #include <mach/iomux-mx27.h>
 
diff --git a/arch/arm/mach-mmp/include/mach/gpio-pxa.h b/arch/arm/mach-mmp/include/mach/gpio-pxa.h
deleted file mode 100644
index 0e135a599f3e..000000000000
--- a/arch/arm/mach-mmp/include/mach/gpio-pxa.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#ifndef __ASM_MACH_GPIO_PXA_H
-#define __ASM_MACH_GPIO_PXA_H
-
-#include <mach/addr-map.h>
-#include <mach/cputype.h>
-#include <mach/irqs.h>
-
-#define GPIO_REGS_VIRT  (APB_VIRT_BASE + 0x19000)
-
-#define BANK_OFF(n)     (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
-#define GPIO_REG(x)     (*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
-
-#define gpio_to_bank(gpio)      ((gpio) >> 5)
-
-/* NOTE: these macros are defined here to make optimization of
- * gpio_{get,set}_value() to work when 'gpio' is a constant.
- * Usage of these macros otherwise is no longer recommended,
- * use generic GPIO API whenever possible.
- */
-#define GPIO_bit(gpio)  (1 << ((gpio) & 0x1f))
-
-#define GPLR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
-#define GPDR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
-#define GPSR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
-#define GPCR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
-
-#include <plat/gpio-pxa.h>
-
-#endif /* __ASM_MACH_GPIO_PXA_H */
diff --git a/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h b/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
index c64dbb96dbad..eb187e0e059b 100644
--- a/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
+++ b/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
@@ -31,5 +31,6 @@
 #define IRQ_MASK_HIGH_OFF       0x0014
 
 #define TIMER_VIRT_BASE         (BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE         (BRIDGE_PHYS_BASE | 0x0300)
 
 #endif
diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
index 3674497162e3..e807c4c52a0b 100644
--- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
+++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
@@ -42,6 +42,7 @@
 #define MV78XX0_CORE0_REGS_PHYS_BASE    0xf1020000
 #define MV78XX0_CORE1_REGS_PHYS_BASE    0xf1024000
 #define MV78XX0_CORE_REGS_VIRT_BASE     0xfe400000
+#define MV78XX0_CORE_REGS_PHYS_BASE     0xfe400000
 #define MV78XX0_CORE_REGS_SIZE          SZ_16K
 
 #define MV78XX0_PCIE_IO_PHYS_BASE(i)    (0xf0800000 + ((i) << 20))
@@ -59,6 +60,7 @@
  * Core-specific peripheral registers.
  */
 #define BRIDGE_VIRT_BASE        (MV78XX0_CORE_REGS_VIRT_BASE)
+#define BRIDGE_PHYS_BASE        (MV78XX0_CORE_REGS_PHYS_BASE)
 
 /*
  * Register Map
diff --git a/arch/arm/mach-mxs/mach-apx4devkit.c b/arch/arm/mach-mxs/mach-apx4devkit.c
index 5e90b9dcdef8..f5f061757deb 100644
--- a/arch/arm/mach-mxs/mach-apx4devkit.c
+++ b/arch/arm/mach-mxs/mach-apx4devkit.c
@@ -205,6 +205,16 @@ static int apx4devkit_phy_fixup(struct phy_device *phy)
         return 0;
 }
 
+static void __init apx4devkit_fec_phy_clk_enable(void)
+{
+        struct clk *clk;
+
+        /* Enable fec phy clock */
+        clk = clk_get_sys("enet_out", NULL);
+        if (!IS_ERR(clk))
+                clk_prepare_enable(clk);
+}
+
 static void __init apx4devkit_init(void)
 {
         mx28_soc_init();
@@ -225,6 +235,7 @@ static void __init apx4devkit_init(void)
         phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
                         apx4devkit_phy_fixup);
 
+        apx4devkit_fec_phy_clk_enable();
         mx28_add_fec(0, &mx28_fec_pdata);
 
         mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 8fa2fc3a4c3c..779734d8ba37 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -494,8 +494,8 @@ static void __init overo_init(void)
 
         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
-        omap_hsmmc_init(mmc);
         overo_i2c_init();
+        omap_hsmmc_init(mmc);
         omap_display_init(&overo_dss_data);
         omap_serial_init();
         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index f7b58609bad8..6227e9505c2d 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -31,12 +31,16 @@
  *
  * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
  *     clockdomain.  (Currently, this applies to OMAP3 clockdomains only.)
+ * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
+ *     active whenever the MPU is active.  True for interconnects and
+ *     the WKUP clockdomains.
  */
 #define CLKDM_CAN_FORCE_SLEEP                   (1 << 0)
 #define CLKDM_CAN_FORCE_WAKEUP                  (1 << 1)
 #define CLKDM_CAN_ENABLE_AUTO                   (1 << 2)
 #define CLKDM_CAN_DISABLE_AUTO                  (1 << 3)
 #define CLKDM_NO_AUTODEPS                       (1 << 4)
+#define CLKDM_ACTIVE_WITH_MPU                   (1 << 5)
 
 #define CLKDM_CAN_HWSUP         (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
 #define CLKDM_CAN_SWSUP         (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)
diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
index 839145e1cfbe..4972219653ce 100644
--- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
@@ -88,4 +88,5 @@ struct clockdomain wkup_common_clkdm = {
         .name           = "wkup_clkdm",
         .pwrdm          = { .name = "wkup_pwrdm" },
         .dep_bit        = OMAP_EN_WKUP_SHIFT,
+        .flags          = CLKDM_ACTIVE_WITH_MPU,
 };
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index c53425847493..7f2133abe7d3 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -381,7 +381,7 @@ static struct clockdomain l4_wkup_44xx_clkdm = {
         .cm_inst          = OMAP4430_PRM_WKUP_CM_INST,
         .clkdm_offs       = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS,
         .dep_bit          = OMAP4430_L4WKUP_STATDEP_SHIFT,
-        .flags            = CLKDM_CAN_HWSUP,
+        .flags            = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU,
 };
 
 static struct clockdomain emu_sys_44xx_clkdm = {
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 773193670ea2..2d710f50fca2 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap
  * _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG
  * @oh: struct omap_hwmod *
  *
- * If module is marked as SWSUP_SIDLE, force the module out of slave
- * idle; otherwise, configure it for smart-idle.  If module is marked
- * as SWSUP_MSUSPEND, force the module out of master standby;
- * otherwise, configure it for smart-standby.  No return value.
+ * Ensure that the OCP_SYSCONFIG register for the IP block represented
+ * by @oh is set to indicate to the PRCM that the IP block is active.
+ * Usually this means placing the module into smart-idle mode and
+ * smart-standby, but if there is a bug in the automatic idle handling
+ * for the IP block, it may need to be placed into the force-idle or
+ * no-idle variants of these modes.  No return value.
  */
 static void _enable_sysc(struct omap_hwmod *oh)
 {
         u8 idlemode, sf;
         u32 v;
+        bool clkdm_act;
 
         if (!oh->class->sysc)
                 return;
@@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh)
         sf = oh->class->sysc->sysc_flags;
 
         if (sf & SYSC_HAS_SIDLEMODE) {
-                idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
-                        HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+                clkdm_act = ((oh->clkdm &&
+                              oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
+                             (oh->_clk && oh->_clk->clkdm &&
+                              oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+                if (clkdm_act && !(oh->class->sysc->idlemodes &
+                                   (SIDLE_SMART | SIDLE_SMART_WKUP)))
+                        idlemode = HWMOD_IDLEMODE_FORCE;
+                else
+                        idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+                                HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
                 _set_slave_idlemode(oh, idlemode, &v);
         }
 
@@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh)
         sf = oh->class->sysc->sysc_flags;
 
         if (sf & SYSC_HAS_SIDLEMODE) {
-                idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
-                        HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+                /* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
+                if (oh->flags & HWMOD_SWSUP_SIDLE ||
+                    !(oh->class->sysc->idlemodes &
+                      (SIDLE_SMART | SIDLE_SMART_WKUP)))
+                        idlemode = HWMOD_IDLEMODE_FORCE;
+                else
+                        idlemode = HWMOD_IDLEMODE_SMART;
                 _set_slave_idlemode(oh, idlemode, &v);
         }
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index f30e861ce6d9..b7bcba5221ba 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = {
         { .role = "pad_fck", .clk = "pad_clks_ck" },
-        { .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" },
+        { .role = "prcm_fck", .clk = "mcbsp1_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
@@ -1963,7 +1963,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp2_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = {
         { .role = "pad_fck", .clk = "pad_clks_ck" },
-        { .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" },
+        { .role = "prcm_fck", .clk = "mcbsp2_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
@@ -1998,7 +1998,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp3_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = {
         { .role = "pad_fck", .clk = "pad_clks_ck" },
-        { .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" },
+        { .role = "prcm_fck", .clk = "mcbsp3_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
@@ -2033,7 +2033,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp4_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = {
         { .role = "pad_fck", .clk = "pad_clks_ck" },
-        { .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" },
+        { .role = "prcm_fck", .clk = "mcbsp4_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
@@ -3864,7 +3864,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_2 = {
 };
 
 /* usb_host_fs -> l3_main_2 */
-static struct omap_hwmod_ocp_if omap44xx_usb_host_fs__l3_main_2 = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_usb_host_fs__l3_main_2 = {
         .master         = &omap44xx_usb_host_fs_hwmod,
         .slave          = &omap44xx_l3_main_2_hwmod,
         .clk            = "l3_div_ck",
@@ -3922,7 +3922,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_3 = {
 };
 
 /* aess -> l4_abe */
-static struct omap_hwmod_ocp_if omap44xx_aess__l4_abe = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_aess__l4_abe = {
         .master         = &omap44xx_aess_hwmod,
         .slave          = &omap44xx_l4_abe_hwmod,
         .clk            = "ocp_abe_iclk",
@@ -4013,7 +4013,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_addrs[] = {
 };
 
 /* l4_abe -> aess */
-static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess = {
         .master         = &omap44xx_l4_abe_hwmod,
         .slave          = &omap44xx_aess_hwmod,
         .clk            = "ocp_abe_iclk",
@@ -4031,7 +4031,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_dma_addrs[] = {
 };
 
 /* l4_abe -> aess (dma) */
-static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess_dma = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess_dma = {
         .master         = &omap44xx_l4_abe_hwmod,
         .slave          = &omap44xx_aess_hwmod,
         .clk            = "ocp_abe_iclk",
@@ -5857,7 +5857,7 @@ static struct omap_hwmod_addr_space omap44xx_usb_host_fs_addrs[] = {
 };
 
 /* l4_cfg -> usb_host_fs */
-static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_fs = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_cfg__usb_host_fs = {
         .master         = &omap44xx_l4_cfg_hwmod,
         .slave          = &omap44xx_usb_host_fs_hwmod,
         .clk            = "l4_div_ck",
@@ -6014,13 +6014,13 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
         &omap44xx_iva__l3_main_2,
         &omap44xx_l3_main_1__l3_main_2,
         &omap44xx_l4_cfg__l3_main_2,
-        &omap44xx_usb_host_fs__l3_main_2,
+        /* &omap44xx_usb_host_fs__l3_main_2, */
         &omap44xx_usb_host_hs__l3_main_2,
         &omap44xx_usb_otg_hs__l3_main_2,
         &omap44xx_l3_main_1__l3_main_3,
         &omap44xx_l3_main_2__l3_main_3,
         &omap44xx_l4_cfg__l3_main_3,
-        &omap44xx_aess__l4_abe,
+        /* &omap44xx_aess__l4_abe, */
         &omap44xx_dsp__l4_abe,
         &omap44xx_l3_main_1__l4_abe,
         &omap44xx_mpu__l4_abe,
@@ -6029,8 +6029,8 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
         &omap44xx_l4_cfg__l4_wkup,
         &omap44xx_mpu__mpu_private,
         &omap44xx_l4_cfg__ocp_wp_noc,
-        &omap44xx_l4_abe__aess,
-        &omap44xx_l4_abe__aess_dma,
+        /* &omap44xx_l4_abe__aess, */
+        /* &omap44xx_l4_abe__aess_dma, */
         &omap44xx_l3_main_2__c2c,
         &omap44xx_l4_wkup__counter_32k,
         &omap44xx_l4_cfg__ctrl_module_core,
@@ -6136,7 +6136,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
         &omap44xx_l4_per__uart2,
         &omap44xx_l4_per__uart3,
         &omap44xx_l4_per__uart4,
-        &omap44xx_l4_cfg__usb_host_fs,
+        /* &omap44xx_l4_cfg__usb_host_fs, */
         &omap44xx_l4_cfg__usb_host_hs,
         &omap44xx_l4_cfg__usb_otg_hs,
         &omap44xx_l4_cfg__usb_tll_hs,
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 119d5a910f3a..43a979075338 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -32,6 +32,7 @@
 #include "twl-common.h"
 #include "pm.h"
 #include "voltage.h"
+#include "mux.h"
 
 static struct i2c_board_info __initdata pmic_i2c_board_info = {
         .addr           = 0x48,
@@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type,
                     struct twl6040_platform_data *twl6040_data, int twl6040_irq)
 {
         /* PMIC part*/
+        omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
         strncpy(omap4_i2c1_board_info[0].type, pmic_type,
                 sizeof(omap4_i2c1_board_info[0].type));
         omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index d09da6a746b8..d3de84b0dcbe 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -127,7 +127,11 @@ static unsigned long hx4700_pin_config[] __initdata = {
         GPIO19_SSP2_SCLK,
         GPIO86_SSP2_RXD,
         GPIO87_SSP2_TXD,
-        GPIO88_GPIO,
+        GPIO88_GPIO | MFP_LPM_DRIVE_HIGH,       /* TSC2046_CS */
+
+        /* BQ24022 Regulator */
+        GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_nCHARGE_EN */
+        GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT,      /* BQ24022_ISET2 */
 
         /* HX4700 specific input GPIOs */
         GPIO12_GPIO | WAKEUP_ON_EDGE_RISE,      /* ASIC3_IRQ */
@@ -135,6 +139,10 @@ static unsigned long hx4700_pin_config[] __initdata = {
         GPIO14_GPIO,    /* nWLAN_IRQ */
 
         /* HX4700 specific output GPIOs */
+        GPIO61_GPIO | MFP_LPM_DRIVE_HIGH,       /* W3220_nRESET */
+        GPIO71_GPIO | MFP_LPM_DRIVE_HIGH,       /* ASIC3_nRESET */
+        GPIO81_GPIO | MFP_LPM_DRIVE_HIGH,       /* CPU_GP_nRESET */
+        GPIO116_GPIO | MFP_LPM_DRIVE_HIGH,      /* CPU_HW_nRESET */
         GPIO102_GPIO | MFP_LPM_DRIVE_LOW,       /* SYNAPTICS_POWER_ON */
 
         GPIO10_GPIO,    /* GSM_IRQ */
@@ -872,14 +880,19 @@ static struct gpio global_gpios[] = {
         { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
         { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
         { GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
+        { GPIO61_HX4700_W3220_nRESET,     GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
         { GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
+        { GPIO81_HX4700_CPU_GP_nRESET,    GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
         { GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
+        { GPIO116_HX4700_CPU_HW_nRESET,   GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
 };
 
 static void __init hx4700_init(void)
 {
         int ret;
 
+        PCFR = PCFR_GPR_EN | PCFR_OPDE;
+
         pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
         gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
         ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2440.c b/arch/arm/mach-s3c24xx/clock-s3c2440.c
index 414364eb426c..cb2883d553b5 100644
--- a/arch/arm/mach-s3c24xx/clock-s3c2440.c
+++ b/arch/arm/mach-s3c24xx/clock-s3c2440.c
@@ -106,7 +106,7 @@ static struct clk s3c2440_clk_cam_upll = {
 static struct clk s3c2440_clk_ac97 = {
         .name           = "ac97",
         .enable         = s3c2410_clkcon_enable,
-        .ctrlbit        = S3C2440_CLKCON_CAMERA,
+        .ctrlbit        = S3C2440_CLKCON_AC97,
 };
 
 static unsigned long  s3c2440_fclk_n_getrate(struct clk *clk)
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index e859fcdb3d58..fde0d23121dc 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -22,8 +22,13 @@
 #include <mach/common.h>
 #include <mach/emev2.h>
 
+#ifdef CONFIG_ARCH_SH73A0
 #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
                         of_machine_is_compatible("renesas,sh73a0"))
+#else
+#define is_sh73a0() (0)
+#endif
+
 #define is_r8a7779() machine_is_marzen()
 
 #ifdef CONFIG_ARCH_EMEV2
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 1509a3cb5833..4fd93f5c49ec 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -625,11 +625,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
         &ab8500_device,
 };
 
-static struct platform_device *snowball_of_platform_devs[] __initdata = {
-        &snowball_led_dev,
-        &snowball_key_dev,
-};
-
 static void __init mop500_init_machine(void)
 {
         struct device *parent = NULL;
@@ -769,6 +764,11 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_UX500_DT
 
+static struct platform_device *snowball_of_platform_devs[] __initdata = {
+        &snowball_led_dev,
+        &snowball_key_dev,
+};
+
 struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
         /* Requires DMA and call-back bindings. */
         OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
@@ -786,6 +786,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
         OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
         OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
         OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
+        /* Requires device name bindings. */
+        OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
         {},
 };
 
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index 741e71feca78..66e7f00884ab 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -63,8 +63,10 @@ static void __init ux500_timer_init(void)
 
         /* TODO: Once MTU has been DT:ed place code above into else. */
         if (of_have_populated_dt()) {
+#ifdef CONFIG_OF
                 np = of_find_matching_node(NULL, prcmu_timer_of_match);
                 if (!np)
+#endif
                         goto dt_fail;
 
                 tmp_base = of_iomap(np, 0);
diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index bec933b04ef0..e95bf84cc837 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void)
 static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         int irq;
-        int devslot = PCI_SLOT(dev->devfn);
 
         /* slot,  pin,  irq
          *  24     1     27
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index c471436c7952..2e8a1efdf7b8 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -64,7 +64,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
 #ifdef CONFIG_ZONE_DMA
 extern phys_addr_t arm_dma_limit;
 #else
-#define arm_dma_limit ((u32)~0)
+#define arm_dma_limit ((phys_addr_t)~0)
 #endif
 
 extern phys_addr_t arm_lowmem_limit;
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e5dad60b558b..cf4528d51774 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -791,6 +791,79 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
         }
 }
 
+#ifndef CONFIG_ARM_LPAE
+
+/*
+ * The Linux PMD is made of two consecutive section entries covering 2MB
+ * (see definition in include/asm/pgtable-2level.h).  However a call to
+ * create_mapping() may optimize static mappings by using individual
+ * 1MB section mappings.  This leaves the actual PMD potentially half
+ * initialized if the top or bottom section entry isn't used, leaving it
+ * open to problems if a subsequent ioremap() or vmalloc() tries to use
+ * the virtual space left free by that unused section entry.
+ *
+ * Let's avoid the issue by inserting dummy vm entries covering the unused
+ * PMD halves once the static mappings are in place.
+ */
+
+static void __init pmd_empty_section_gap(unsigned long addr)
+{
+        struct vm_struct *vm;
+
+        vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
+        vm->addr = (void *)addr;
+        vm->size = SECTION_SIZE;
+        vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
+        vm->caller = pmd_empty_section_gap;
+        vm_area_add_early(vm);
+}
+
+static void __init fill_pmd_gaps(void)
+{
+        struct vm_struct *vm;
+        unsigned long addr, next = 0;
+        pmd_t *pmd;
+
+        /* we're still single threaded hence no lock needed here */
+        for (vm = vmlist; vm; vm = vm->next) {
+                if (!(vm->flags & VM_ARM_STATIC_MAPPING))
+                        continue;
+                addr = (unsigned long)vm->addr;
+                if (addr < next)
+                        continue;
+
+                /*
+                 * Check if this vm starts on an odd section boundary.
+                 * If so and the first section entry for this PMD is free
+                 * then we block the corresponding virtual address.
+                 */
+                if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+                        pmd = pmd_off_k(addr);
+                        if (pmd_none(*pmd))
+                                pmd_empty_section_gap(addr & PMD_MASK);
+                }
+
+                /*
+                 * Then check if this vm ends on an odd section boundary.
+                 * If so and the second section entry for this PMD is empty
+                 * then we block the corresponding virtual address.
+                 */
+                addr += vm->size;
+                if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+                        pmd = pmd_off_k(addr) + 1;
+                        if (pmd_none(*pmd))
+                                pmd_empty_section_gap(addr);
+                }
+
+                /* no need to look at any vm entry until we hit the next PMD */
+                next = (addr + PMD_SIZE - 1) & PMD_MASK;
+        }
+}
+
+#else
+#define fill_pmd_gaps() do { } while (0)
+#endif
+
 static void * __initdata vmalloc_min =
         (void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
 
@@ -1072,6 +1145,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
          */
         if (mdesc->map_io)
                 mdesc->map_io();
+        fill_pmd_gaps();
 
         /*
          * Finally flush the caches and tlb to ensure that we're in a
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index 33ecd0c9f0c3..b1e05ccff3ac 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -157,11 +157,13 @@ int s3c_adc_start(struct s3c_adc_client *client,
                 return -EINVAL;
         }
 
-        if (client->is_ts && adc->ts_pend)
-                return -EAGAIN;
-
         spin_lock_irqsave(&adc->lock, flags);
 
+        if (client->is_ts && adc->ts_pend) {
+                spin_unlock_irqrestore(&adc->lock, flags);
+                return -EAGAIN;
+        }
+
         client->channel = channel;
         client->nr_samples = nr_samples;
 
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 1d214cb9d770..6303974c2ee0 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -126,7 +126,8 @@ struct platform_device s3c_device_adc = {
 #ifdef CONFIG_CPU_S3C2440
 static struct resource s3c_camif_resource[] = {
         [0] = DEFINE_RES_MEM(S3C2440_PA_CAMIF, S3C2440_SZ_CAMIF),
-        [1] = DEFINE_RES_IRQ(IRQ_CAM),
+        [1] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_C),
+        [2] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_P),
 };
 
 struct platform_device s3c_device_camif = {
diff --git a/arch/arm/plat-samsung/s5p-clock.c b/arch/arm/plat-samsung/s5p-clock.c
index 031a61899bef..48a159911037 100644
--- a/arch/arm/plat-samsung/s5p-clock.c
+++ b/arch/arm/plat-samsung/s5p-clock.c
@@ -37,6 +37,7 @@ struct clk clk_ext_xtal_mux = {
 struct clk clk_xusbxti = {
         .name           = "xusbxti",
         .id             = -1,
+        .rate           = 24000000,
 };
 
 struct clk s5p_clk_27m = {
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
index a09230a08e02..62ef17676b40 100644
--- a/arch/h8300/include/asm/pgtable.h
+++ b/arch/h8300/include/asm/pgtable.h
@@ -70,4 +70,7 @@ extern int is_in_rom(unsigned long);
 #define VMALLOC_END     0xffffffff
 
 #define arch_enter_lazy_cpu_mode()    do {} while (0)
+
+#include <asm-generic/pgtable.h>
+
 #endif /* _H8300_PGTABLE_H */
diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h
index 356068cd0879..8725d1ad4272 100644
--- a/arch/h8300/include/asm/uaccess.h
+++ b/arch/h8300/include/asm/uaccess.h
@@ -100,7 +100,6 @@ extern int __put_user_bad(void);
         break;                                                  \
     default:                                                    \
         __gu_err = __get_user_bad();                            \
-        __gu_val = 0;                                           \
         break;                                                  \
     }                                                           \
     (x) = __gu_val;                                             \
@@ -159,4 +158,6 @@ clear_user(void *to, unsigned long n)
         return 0;
 }
 
+#define __clear_user    clear_user
+
 #endif /* _H8300_UACCESS_H */
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index fca10378701b..5adaadaf9218 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -447,7 +447,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-statis void do_signal(struct pt_regs *regs)
+static void do_signal(struct pt_regs *regs)
 {
         siginfo_t info;
         int signr;
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index 32263a138aa6..e0f74191d553 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -27,6 +27,7 @@
 #include <linux/profile.h>
 
 #include <asm/io.h>
+#include <asm/irq_regs.h>
 #include <asm/timer.h>
 
 #define TICK_SIZE (tick_nsec / 1000)
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index ea453532a33c..075d87acd12a 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
 
         /* setup reset gpio used by pci */
         reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
-        if (reset_gpio > 0)
+        if (gpio_is_valid(reset_gpio))
                 devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
 
         /* enable auto-switching between PCI and EBU */
@@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
         ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
 
         /* toggle reset pin */
-        if (reset_gpio > 0) {
+        if (gpio_is_valid(reset_gpio)) {
                 __gpio_set_value(reset_gpio, 0);
                 wmb();
                 mdelay(1);
diff --git a/arch/mn10300/include/asm/ptrace.h b/arch/mn10300/include/asm/ptrace.h
index 55b79ef10028..44251b974f1d 100644
--- a/arch/mn10300/include/asm/ptrace.h
+++ b/arch/mn10300/include/asm/ptrace.h
@@ -81,9 +81,6 @@ struct pt_regs {
 #define PTRACE_GETFPREGS          14
 #define PTRACE_SETFPREGS          15
 
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD     0x00000001
-
 #ifdef __KERNEL__
 
 #define user_mode(regs)                 (((regs)->epsw & EPSW_nSL) == EPSW_nSL)
diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h
index 08251d6f6b11..ac519bbd42ff 100644
--- a/arch/mn10300/include/asm/thread_info.h
+++ b/arch/mn10300/include/asm/thread_info.h
@@ -123,7 +123,7 @@ static inline unsigned long current_stack_pointer(void)
 }
 
 #ifndef CONFIG_KGDB
-void arch_release_thread_info(struct thread_info *ti)
+void arch_release_thread_info(struct thread_info *ti);
 #endif
 #define get_thread_info(ti)     get_task_struct((ti)->task)
 #define put_thread_info(ti)     put_task_struct((ti)->task)
diff --git a/arch/mn10300/include/asm/timex.h b/arch/mn10300/include/asm/timex.h
index bd4e90dfe6c2..f8e66425cbf8 100644
--- a/arch/mn10300/include/asm/timex.h
+++ b/arch/mn10300/include/asm/timex.h
@@ -11,7 +11,6 @@
 #ifndef _ASM_TIMEX_H
 #define _ASM_TIMEX_H
 
-#include <asm/hardirq.h>
 #include <unit/timex.h>
 
 #define TICK_SIZE (tick_nsec / 1000)
@@ -30,16 +29,6 @@ static inline cycles_t get_cycles(void)
 extern int init_clockevents(void);
 extern int init_clocksource(void);
 
-static inline void setup_jiffies_interrupt(int irq,
-                                           struct irqaction *action)
-{
-        u16 tmp;
-        setup_irq(irq, action);
-        set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
-        GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
-        tmp = GxICR(irq);
-}
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_TIMEX_H */
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index 69cae0260786..ccce35e3e179 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -70,6 +70,16 @@ static void event_handler(struct clock_event_device *dev)
 {
 }
 
+static inline void setup_jiffies_interrupt(int irq,
+                                           struct irqaction *action)
+{
+        u16 tmp;
+        setup_irq(irq, action);
+        set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
+        GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
+        tmp = GxICR(irq);
+}
+
 int __init init_clockevents(void)
 {
         struct clock_event_device *cd;
diff --git a/arch/mn10300/kernel/internal.h b/arch/mn10300/kernel/internal.h
index a5ac755dd69f..2df440105a80 100644
--- a/arch/mn10300/kernel/internal.h
+++ b/arch/mn10300/kernel/internal.h
@@ -9,6 +9,8 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#include <linux/irqreturn.h>
+
 struct clocksource;
 struct clock_event_device;
 
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 2381df83bd00..35932a8de8b8 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -170,9 +170,9 @@ mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask,
         case SC1TXIRQ:
 #ifdef CONFIG_MN10300_TTYSM1_TIMER12
         case TM12IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER9
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER9)
         case TM9IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER3
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
         case TM3IRQ:
 #endif /* CONFIG_MN10300_TTYSM1_TIMER12 */
 #endif /* CONFIG_MN10300_TTYSM1 */
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index 94a9c6d53e1b..b900e5afa0ae 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -26,6 +26,7 @@
 #include <linux/kdebug.h>
 #include <linux/bug.h>
 #include <linux/irq.h>
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
 #include <asm/io.h>
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 159acb02cfd4..e244ebe637e1 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -15,6 +15,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
+#include <linux/export.h>
 #include <asm/io.h>
 
 static unsigned long pci_sram_allocated = 0xbc000000;
diff --git a/arch/mn10300/unit-asb2303/include/unit/timex.h b/arch/mn10300/unit-asb2303/include/unit/timex.h
index cc18fe7d8b90..c37f9832cf17 100644
--- a/arch/mn10300/unit-asb2303/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2303/include/unit/timex.h
@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>
diff --git a/arch/mn10300/unit-asb2303/smc91111.c b/arch/mn10300/unit-asb2303/smc91111.c
index 43c246439413..53677694b165 100644
--- a/arch/mn10300/unit-asb2303/smc91111.c
+++ b/arch/mn10300/unit-asb2303/smc91111.c
@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/io.h>
+#include <asm/irq.h>
 #include <asm/timex.h>
 #include <asm/processor.h>
 #include <asm/intctl-regs.h>
diff --git a/arch/mn10300/unit-asb2305/include/unit/timex.h b/arch/mn10300/unit-asb2305/include/unit/timex.h
index 758af30d1a16..4cefc224f448 100644
--- a/arch/mn10300/unit-asb2305/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2305/include/unit/timex.h
@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>
diff --git a/arch/mn10300/unit-asb2305/unit-init.c b/arch/mn10300/unit-asb2305/unit-init.c
index e1becd6b7571..bc4adfaf815c 100644
--- a/arch/mn10300/unit-asb2305/unit-init.c
+++ b/arch/mn10300/unit-asb2305/unit-init.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <asm/io.h>
+#include <asm/irq.h>
 #include <asm/setup.h>
 #include <asm/processor.h>
 #include <asm/intctl-regs.h>
diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h
index ddb7ed010706..42f32db75087 100644
--- a/arch/mn10300/unit-asb2364/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2364/include/unit/timex.h
@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 6eb75b80488c..0554ab062bdc 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -86,8 +86,8 @@ static inline bool arch_irqs_disabled(void)
 }
 
 #ifdef CONFIG_PPC_BOOK3E
-#define __hard_irq_enable()     asm volatile("wrteei 1" : : : "memory");
-#define __hard_irq_disable()    asm volatile("wrteei 0" : : : "memory");
+#define __hard_irq_enable()     asm volatile("wrteei 1" : : : "memory")
+#define __hard_irq_disable()    asm volatile("wrteei 0" : : : "memory")
 #else
 #define __hard_irq_enable()     __mtmsrd(local_paca->kernel_msr | MSR_EE, 1)
 #define __hard_irq_disable()    __mtmsrd(local_paca->kernel_msr, 1)
@@ -125,6 +125,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
         return !regs->softe;
 }
 
+extern bool prep_irq_for_idle(void);
+
 #else /* CONFIG_PPC64 */
 
 #define SET_MSR_EE(x)   mtmsr(x)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 1b415027ec0e..1f017bb7a7ce 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -229,7 +229,7 @@ notrace void arch_local_irq_restore(unsigned long en)
          */
         if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
                 __hard_irq_disable();
-#ifdef CONFIG_TRACE_IRQFLAG
+#ifdef CONFIG_TRACE_IRQFLAGS
         else {
                 /*
                  * We should already be hard disabled here. We had bugs
@@ -286,6 +286,52 @@ void notrace restore_interrupts(void)
                 __hard_irq_enable();
 }
 
+/*
+ * This is a helper to use when about to go into idle low-power
+ * when the latter has the side effect of re-enabling interrupts
+ * (such as calling H_CEDE under pHyp).
+ *
+ * You call this function with interrupts soft-disabled (this is
+ * already the case when ppc_md.power_save is called). The function
+ * will return whether to enter power save or just return.
+ *
+ * In the former case, it will have notified lockdep of interrupts
+ * being re-enabled and generally sanitized the lazy irq state,
+ * and in the latter case it will leave with interrupts hard
+ * disabled and marked as such, so the local_irq_enable() call
+ * in cpu_idle() will properly re-enable everything.
+ */
+bool prep_irq_for_idle(void)
+{
+        /*
+         * First we need to hard disable to ensure no interrupt
+         * occurs before we effectively enter the low power state
+         */
+        hard_irq_disable();
+
+        /*
+         * If anything happened while we were soft-disabled,
+         * we return now and do not enter the low power state.
+         */
+        if (lazy_irq_pending())
+                return false;
+
+        /* Tell lockdep we are about to re-enable */
+        trace_hardirqs_on();
+
+        /*
+         * Mark interrupts as soft-enabled and clear the
+         * PACA_IRQ_HARD_DIS from the pending mask since we
+         * are about to hard enable as well as a side effect
+         * of entering the low power state.
+         */
+        local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+        local_paca->soft_enabled = 1;
+
+        /* Tell the caller to enter the low power state */
+        return true;
+}
+
 #endif /* CONFIG_PPC64 */
 
 int arch_show_interrupts(struct seq_file *p, int prec)
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index a84aafce2a12..a1044f43becd 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -810,7 +810,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
         lwz     r3,VCORE_NAPPING_THREADS(r5)
         lwz     r4,VCPU_PTID(r9)
         li      r0,1
-        sldi    r0,r0,r4
+        sld     r0,r0,r4
         andc.   r3,r3,r0                /* no sense IPI'ing ourselves */
         beq     43f
         mulli   r4,r4,PACA_SIZE         /* get paca for thread 0 */
diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index 3ff9013d6e79..ee02b30878ed 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -241,6 +241,7 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
         case H_PUT_TCE:
                 return kvmppc_h_pr_put_tce(vcpu);
         case H_CEDE:
+                vcpu->arch.shared->msr |= MSR_EE;
                 kvm_vcpu_block(vcpu);
                 clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
                 vcpu->stat.halt_wakeup++;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6e8f677f5646..1e95556dc692 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -639,7 +639,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
         unsigned int n, rc, ranges, is_kexec_kdump = 0;
         unsigned long lmb_size, base, size, sz;
         int nid;
-        struct assoc_arrays aa;
+        struct assoc_arrays aa = { .arrays = NULL };
 
         n = of_get_drconf_memory(memory, &dm);
         if (!n)
diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index efdacc829576..d17e98bc0c10 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -42,11 +42,9 @@ static void cbe_power_save(void)
 {
         unsigned long ctrl, thread_switch_control;
 
-        /*
-         * We need to hard disable interrupts, the local_irq_enable() done by
-         * our caller upon return will hard re-enable.
-         */
-        hard_irq_disable();
+        /* Ensure our interrupt state is properly tracked */
+        if (!prep_irq_for_idle())
+                return;
 
         ctrl = mfspr(SPRN_CTRLF);
 
@@ -81,6 +79,9 @@ static void cbe_power_save(void)
          */
         ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
         mtspr(SPRN_CTRLT, ctrl);
+
+        /* Re-enable interrupts in MSR */
+        __hard_irq_enable();
 }
 
 static int cbe_system_reset_exception(struct pt_regs *regs)
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c
index e61483e8e960..c71be66bd5dc 100644
--- a/arch/powerpc/platforms/pseries/processor_idle.c
+++ b/arch/powerpc/platforms/pseries/processor_idle.c
@@ -99,15 +99,18 @@ out:
 static void check_and_cede_processor(void)
 {
         /*
-         * Interrupts are soft-disabled at this point,
-         * but not hard disabled. So an interrupt might have
-         * occurred before entering NAP, and would be potentially
-         * lost (edge events, decrementer events, etc...) unless
-         * we first hard disable then check.
+         * Ensure our interrupt state is properly tracked,
+         * also checks if no interrupt has occurred while we
+         * were soft-disabled
          */
-        hard_irq_disable();
-        if (!lazy_irq_pending())
+        if (prep_irq_for_idle()) {
                 cede_processor();
+#ifdef CONFIG_TRACE_IRQFLAGS
+                /* Ensure that H_CEDE returns with IRQs on */
+                if (WARN_ON(!(mfmsr() & MSR_EE)))
+                        __hard_irq_enable();
+#endif
+        }
 }
 
 static int dedicated_cede_loop(struct cpuidle_device *dev,
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 0f3ab06d2222..eab3492a45c5 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -971,7 +971,7 @@ static int cpu_cmd(void)
                 /* print cpus waiting or in xmon */
                 printf("cpus stopped:");
                 count = 0;
-                for (cpu = 0; cpu < NR_CPUS; ++cpu) {
+                for_each_possible_cpu(cpu) {
                         if (cpumask_test_cpu(cpu, &cpus_in_xmon)) {
                                 if (count == 0)
                                         printf(" %x", cpu);
diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h
index e136d28d1d2e..4d48f1436a63 100644
--- a/arch/sh/include/asm/io_noioport.h
+++ b/arch/sh/include/asm/io_noioport.h
@@ -19,9 +19,20 @@ static inline u32 inl(unsigned long addr)
         return -1;
 }
 
-#define outb(x, y)      BUG()
-#define outw(x, y)      BUG()
-#define outl(x, y)      BUG()
+static inline void outb(unsigned char x, unsigned long port)
+{
+        BUG();
+}
+
+static inline void outw(unsigned short x, unsigned long port)
+{
+        BUG();
+}
+
+static inline void outl(unsigned int x, unsigned long port)
+{
+        BUG();
+}
 
 #define inb_p(addr)     inb(addr)
 #define inw_p(addr)     inw(addr)
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
index 8832c526cdf9..c4a0336660dd 100644
--- a/arch/sh/kernel/cpu/sh3/serial-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
@@ -2,7 +2,7 @@
 #include <linux/serial_core.h>
 #include <linux/io.h>
 #include <cpu/serial.h>
-#include <asm/gpio.h>
+#include <cpu/gpio.h>
 
 static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
 {
diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c
index 9092ce8aa6b4..f8b74ca83b92 100644
--- a/arch/tile/kernel/backtrace.c
+++ b/arch/tile/kernel/backtrace.c
@@ -14,6 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <asm/byteorder.h>
 #include <asm/backtrace.h>
 #include <asm/tile-desc.h>
 #include <arch/abi.h>
@@ -336,8 +337,12 @@ static void find_caller_pc_and_caller_sp(CallerLocation *location,
                                 bytes_to_prefetch / sizeof(tile_bundle_bits);
                 }
 
-                /* Decode the next bundle. */
-                bundle.bits = prefetched_bundles[next_bundle++];
+                /*
+                 * Decode the next bundle.
+                 * TILE always stores instruction bundles in little-endian
+                 * mode, even when the chip is running in big-endian mode.
+                 */
+                bundle.bits = le64_to_cpu(prefetched_bundles[next_bundle++]);
                 bundle.num_insns =
                         parse_insn_tile(bundle.bits, pc, bundle.insns);
                 num_info_ops = bt_get_info_ops(&bundle, info_operands);
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 88e466b159dc..43b39d61b538 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -705,7 +705,6 @@ static void stack_proc(void *arg)
         struct task_struct *from = current, *to = arg;
 
         to->thread.saved_task = from;
-        rcu_switch_from(from);
         switch_to(from, to, from);
 }
 
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 7515cf0e1805..5db36caf4289 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -139,6 +139,19 @@ static int addr_to_vsyscall_nr(unsigned long addr)
         return nr;
 }
 
+#ifdef CONFIG_SECCOMP
+static int vsyscall_seccomp(struct task_struct *tsk, int syscall_nr)
+{
+        if (!seccomp_mode(&tsk->seccomp))
+                return 0;
+        task_pt_regs(tsk)->orig_ax = syscall_nr;
+        task_pt_regs(tsk)->ax = syscall_nr;
+        return __secure_computing(syscall_nr);
+}
+#else
+#define vsyscall_seccomp(_tsk, _nr) 0
+#endif
+
 static bool write_ok_or_segv(unsigned long ptr, size_t size)
 {
         /*
@@ -174,6 +187,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
         int vsyscall_nr;
         int prev_sig_on_uaccess_error;
         long ret;
+        int skip;
 
         /*
          * No point in checking CS -- the only way to get here is a user mode
@@ -205,9 +219,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
         }
 
         tsk = current;
-        if (seccomp_mode(&tsk->seccomp))
-                do_exit(SIGKILL);
-
         /*
          * With a real vsyscall, page faults cause SIGSEGV.  We want to
          * preserve that behavior to make writing exploits harder.
@@ -222,8 +233,13 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
          * address 0".
          */
         ret = -EFAULT;
+        skip = 0;
         switch (vsyscall_nr) {
         case 0:
+                skip = vsyscall_seccomp(tsk, __NR_gettimeofday);
+                if (skip)
+                        break;
+
                 if (!write_ok_or_segv(regs->di, sizeof(struct timeval)) ||
                     !write_ok_or_segv(regs->si, sizeof(struct timezone)))
                         break;
@@ -234,6 +250,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
                 break;
 
         case 1:
+                skip = vsyscall_seccomp(tsk, __NR_time);
+                if (skip)
+                        break;
+
                 if (!write_ok_or_segv(regs->di, sizeof(time_t)))
                         break;
 
@@ -241,6 +261,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
                 break;
 
         case 2:
+                skip = vsyscall_seccomp(tsk, __NR_getcpu);
+                if (skip)
+                        break;
+
                 if (!write_ok_or_segv(regs->di, sizeof(unsigned)) ||
                     !write_ok_or_segv(regs->si, sizeof(unsigned)))
                         break;
@@ -253,6 +277,12 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 
         current_thread_info()->sig_on_uaccess_error = prev_sig_on_uaccess_error;
 
+        if (skip) {
+                if ((long)regs->ax <= 0L) /* seccomp errno emulation */
+                        goto do_ret;
+                goto done; /* seccomp trace/trap */
+        }
+
         if (ret == -EFAULT) {
                 /* Bad news -- userspace fed a bad pointer to a vsyscall. */
                 warn_bad_vsyscall(KERN_INFO, regs,
@@ -271,10 +301,11 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 
         regs->ax = ret;
 
+do_ret:
         /* Emulate a ret instruction. */
         regs->ip = caller;
         regs->sp += 8;
-
+done:
         return true;
 
 sigsegv:
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index be3cea4407ff..57e168e27b5b 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3934,6 +3934,9 @@ static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm,
 {
         struct kvm_mmu_page *page;
 
+        if (list_empty(&kvm->arch.active_mmu_pages))
+                return;
+
         page = container_of(kvm->arch.active_mmu_pages.prev,
                             struct kvm_mmu_page, link);
         kvm_mmu_prepare_zap_page(kvm, page, invalid_list);
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 9b306e550e3f..2c8d6a3d250a 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -277,7 +277,7 @@ void xtensa_elf_core_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs)
 
         /* Don't leak any random bits. */
 
-        memset(elfregs, 0, sizeof (elfregs));
+        memset(elfregs, 0, sizeof(*elfregs));
 
         /* Note:  PS.EXCM is not set while user task is running; its
          * being set in regs->ps is for exception handling convenience.