9 files changed, 58 insertions, 18 deletions

diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 0abbce8c70bc..b324dcac1c56 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -57,7 +57,9 @@ int main(void)
   DEFINE(TI_TP_VALUE,           offsetof(struct thread_info, tp_value));
   DEFINE(TI_FPSTATE,            offsetof(struct thread_info, fpstate));
   DEFINE(TI_VFPSTATE,           offsetof(struct thread_info, vfpstate));
-  DEFINE(TI_IWMMXT_STATE,       (offsetof(struct thread_info, fpstate)+4)&~7);
+#ifdef CONFIG_IWMMXT
+  DEFINE(TI_IWMMXT_STATE,       offsetof(struct thread_info, fpstate.iwmmxt));
+#endif
   BLANK();
   DEFINE(S_R0,                  offsetof(struct pt_regs, ARM_r0));
   DEFINE(S_R1,                  offsetof(struct pt_regs, ARM_r1));
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 8c3035d5ffc9..3173924a9b60 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -111,7 +111,7 @@
                 CALL(sys_statfs)
 /* 100 */       CALL(sys_fstatfs)
                 CALL(sys_ni_syscall)
-                CALL(OBSOLETE(sys_socketcall))
+                CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall)))
                 CALL(sys_syslog)
                 CALL(sys_setitimer)
 /* 105 */       CALL(sys_getitimer)
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 964cd717506b..ec48d70c6d8b 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -566,7 +566,7 @@ ENTRY(__switch_to)
         ldr     r6, [r2, #TI_CPU_DOMAIN]!
 #endif
 #if __LINUX_ARM_ARCH__ >= 6
-#ifdef CONFIG_CPU_MPCORE
+#ifdef CONFIG_CPU_32v6K
         clrex
 #else
         strex   r5, r4, [ip]                    @ Clear exclusive monitor
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 7b6256bb590e..bc9e2f8ae326 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -610,15 +610,12 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
 static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
 {
         struct thread_info *thread = task_thread_info(tsk);
-        void *ptr = &thread->fpstate;
 
         if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
                 return -ENODATA;
         iwmmxt_task_disable(thread);  /* force it to ram */
-        /* The iWMMXt state is stored doubleword-aligned.  */
-        if (((long) ptr) & 4)
-                ptr += 4;
-        return copy_to_user(ufp, ptr, 0x98) ? -EFAULT : 0;
+        return copy_to_user(ufp, &thread->fpstate.iwmmxt, IWMMXT_SIZE)
+                ? -EFAULT : 0;
 }
 
 /*
@@ -627,15 +624,12 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
 static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
 {
         struct thread_info *thread = task_thread_info(tsk);
-        void *ptr = &thread->fpstate;
 
         if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
                 return -EACCES;
         iwmmxt_task_release(thread);  /* force a reload */
-        /* The iWMMXt state is stored doubleword-aligned.  */
-        if (((long) ptr) & 4)
-                ptr += 4;
-        return copy_from_user(ptr, ufp, 0x98) ? -EFAULT : 0;
+        return copy_from_user(&thead->fpstate.iwmmxt, ufp, IWMMXT_SIZE)
+                ? -EFAULT : 0;
 }
 
 #endif
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index c45d10d07bde..68273b4dc882 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -23,6 +23,7 @@
 #include <linux/root_dev.h>
 #include <linux/cpu.h>
 #include <linux/interrupt.h>
+#include <linux/smp.h>
 
 #include <asm/cpu.h>
 #include <asm/elf.h>
@@ -771,6 +772,10 @@ void __init setup_arch(char **cmdline_p)
         paging_init(&meminfo, mdesc);
         request_standard_resources(&meminfo, mdesc);
 
+#ifdef CONFIG_SMP
+        smp_init_cpus();
+#endif
+
         cpu_init();
 
         /*
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 7338948bd7d3..02aa300c4633 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -338,7 +338,6 @@ void __init smp_prepare_boot_cpu(void)
 
         per_cpu(cpu_data, cpu).idle = current;
 
-        cpu_set(cpu, cpu_possible_map);
         cpu_set(cpu, cpu_present_map);
         cpu_set(cpu, cpu_online_map);
 }
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index 9d4b76409c64..8e2f9bc3368b 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -64,6 +64,7 @@
  * sys_connect:
  * sys_sendmsg:
  * sys_sendto:
+ * sys_socketcall:
  *
  *   struct sockaddr_un loses its padding with EABI.  Since the size of the
  *   structure is used as a validation test in unix_mkname(), we need to
@@ -78,6 +79,7 @@
 #include <linux/eventpoll.h>
 #include <linux/sem.h>
 #include <linux/socket.h>
+#include <linux/net.h>
 #include <asm/ipc.h>
 #include <asm/uaccess.h>
 
@@ -408,3 +410,31 @@ asmlinkage long sys_oabi_sendmsg(int fd, struct msghdr __user *msg, unsigned fla
         return sys_sendmsg(fd, msg, flags);
 }
 
+asmlinkage long sys_oabi_socketcall(int call, unsigned long __user *args)
+{
+        unsigned long r = -EFAULT, a[6];
+
+        switch (call) {
+        case SYS_BIND:
+                if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
+                        r = sys_oabi_bind(a[0], (struct sockaddr __user *)a[1], a[2]);
+                break;
+        case SYS_CONNECT:
+                if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
+                        r = sys_oabi_connect(a[0], (struct sockaddr __user *)a[1], a[2]);
+                break;
+        case SYS_SENDTO:
+                if (copy_from_user(a, args, 6 * sizeof(long)) == 0)
+                        r = sys_oabi_sendto(a[0], (void __user *)a[1], a[2], a[3],
+                                            (struct sockaddr __user *)a[4], a[5]);
+                break;
+        case SYS_SENDMSG:
+                if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
+                        r = sys_oabi_sendmsg(a[0], (struct msghdr __user *)a[1], a[2]);
+                break;
+        default:
+                r = sys_socketcall(call, args);
+        }
+
+        return r;
+}
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index d7d932c02866..d6bd435a6857 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -422,12 +422,14 @@ static int timer_dyn_tick_disable(void)
 void timer_dyn_reprogram(void)
 {
         struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
+        unsigned long next, seq;
 
-        if (dyn_tick) {
-                write_seqlock(&xtime_lock);
-                if (dyn_tick->state & DYN_TICK_ENABLED)
+        if (dyn_tick && (dyn_tick->state & DYN_TICK_ENABLED)) {
+                next = next_timer_interrupt();
+                do {
+                        seq = read_seqbegin(&xtime_lock);
                         dyn_tick->reprogram(next_timer_interrupt() - jiffies);
-                write_sequnlock(&xtime_lock);
+                } while (read_seqretry(&xtime_lock, seq));
         }
 }
 
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 10235b01582e..03924bcc6129 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -19,6 +19,7 @@
 #include <linux/personality.h>
 #include <linux/ptrace.h>
 #include <linux/kallsyms.h>
+#include <linux/delay.h>
 #include <linux/init.h>
 
 #include <asm/atomic.h>
@@ -231,6 +232,13 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
         __die(str, err, thread, regs);
         bust_spinlocks(0);
         spin_unlock_irq(&die_lock);
+
+        if (panic_on_oops) {
+                printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
+                ssleep(5);
+                panic("Fatal exception");
+        }
+
         do_exit(SIGSEGV);
 }