Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (29 commits)
  MIPS: Call oops_enter, oops_exit in die
  staging/octeon: Software should check the checksum of no tcp/udp packets
  MIPS: Octeon: Enable C0_UserLocal probing.
  MIPS: No branches in delay slots for huge pages in handle_tlbl
  MIPS: Don't clobber CP0_STATUS value for CONFIG_MIPS_MT_SMTC
  MIPS: Octeon: Select CONFIG_HOLES_IN_ZONE
  MIPS: PM: Use struct syscore_ops instead of sysdevs for PM (v2)
  MIPS: Compat: Use 32-bit wrapper for compat_sys_futex.
  MIPS: Do not use EXTRA_CFLAGS
  MIPS: Alchemy: DB1200: Disable cascade IRQ in handler
  SERIAL: Lantiq: Set timeout in uart_port
  MIPS: Lantiq: Fix setting the PCI bus speed on AR9
  MIPS: Lantiq: Fix external interrupt sources
  MIPS: tlbex: Fix build error in R3000 code.
  MIPS: Alchemy: Include Au1100 in PM code.
  MIPS: Alchemy: Fix typo in MAC0 registration
  MIPS: MSP71xx: Fix build error.
  MIPS: Handle __put_user() sleeping.
  MIPS: Allow forced irq threading
  MIPS: i8259: Mark cascade interrupt non-threaded
  ...

8 files changed, 47 insertions, 27 deletions

diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index feb8021a305f..6a2d758dd8e9 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -19,6 +19,26 @@
 
 #include <asm-generic/sections.h>
 
+#if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
+#define MCOUNT_OFFSET_INSNS 5
+#else
+#define MCOUNT_OFFSET_INSNS 4
+#endif
+
+/*
+ * Check if the address is in kernel space
+ *
+ * Clone core_kernel_text() from kernel/extable.c, but doesn't call
+ * init_kernel_text() for Ftrace doesn't trace functions in init sections.
+ */
+static inline int in_kernel_space(unsigned long ip)
+{
+        if (ip >= (unsigned long)_stext &&
+            ip <= (unsigned long)_etext)
+                return 1;
+        return 0;
+}
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 #define JAL 0x0c000000          /* jump & link: ip --> ra, jump to target */
@@ -54,20 +74,6 @@ static inline void ftrace_dyn_arch_init_insns(void)
 #endif
 }
 
-/*
- * Check if the address is in kernel space
- *
- * Clone core_kernel_text() from kernel/extable.c, but doesn't call
- * init_kernel_text() for Ftrace doesn't trace functions in init sections.
- */
-static inline int in_kernel_space(unsigned long ip)
-{
-        if (ip >= (unsigned long)_stext &&
-            ip <= (unsigned long)_etext)
-                return 1;
-        return 0;
-}
-
 static int ftrace_modify_code(unsigned long ip, unsigned int new_code)
 {
         int faulted;
@@ -112,11 +118,6 @@ static int ftrace_modify_code(unsigned long ip, unsigned int new_code)
  *                                  1: offset = 4 instructions
  */
 
-#if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
-#define MCOUNT_OFFSET_INSNS 5
-#else
-#define MCOUNT_OFFSET_INSNS 4
-#endif
 #define INSN_B_1F (0x10000000 | MCOUNT_OFFSET_INSNS)
 
 int ftrace_make_nop(struct module *mod,
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 5c74eb797f08..32b397b646ee 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -229,7 +229,7 @@ static void i8259A_shutdown(void)
          */
         if (i8259A_auto_eoi >= 0) {
                 outb(0xff, PIC_MASTER_IMR);     /* mask all of 8259A-1 */
-                outb(0xff, PIC_SLAVE_IMR);      /* mask all of 8259A-1 */
+                outb(0xff, PIC_SLAVE_IMR);      /* mask all of 8259A-2 */
         }
 }
 
@@ -295,6 +295,7 @@ static void init_8259A(int auto_eoi)
 static struct irqaction irq2 = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct resource pic1_io_resource = {
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 876a75cc376f..922a554cd108 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -349,3 +349,10 @@ SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags,
         return sys_fanotify_mark(fanotify_fd, flags, merge_64(a3, a4),
                                  dfd, pathname);
 }
+
+SYSCALL_DEFINE6(32_futex, u32 __user *, uaddr, int, op, u32, val,
+                struct compat_timespec __user *, utime, u32 __user *, uaddr2,
+                u32, val3)
+{
+        return compat_sys_futex(uaddr, op, val, utime, uaddr2, val3);
+}
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index f9296e894e46..6de1f598346e 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -315,7 +315,7 @@ EXPORT(sysn32_call_table)
         PTR     sys_fremovexattr
         PTR     sys_tkill
         PTR     sys_ni_syscall
-        PTR     compat_sys_futex
+        PTR     sys_32_futex
         PTR     compat_sys_sched_setaffinity    /* 6195 */
         PTR     compat_sys_sched_getaffinity
         PTR     sys_cacheflush
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 4d7c9827706f..1d813169e453 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -441,7 +441,7 @@ sys_call_table:
         PTR     sys_fremovexattr                /* 4235 */
         PTR     sys_tkill
         PTR     sys_sendfile64
-        PTR     compat_sys_futex
+        PTR     sys_32_futex
         PTR     compat_sys_sched_setaffinity
         PTR     compat_sys_sched_getaffinity    /* 4240 */
         PTR     compat_sys_io_setup
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index dbbe0ce48d89..f8524003676a 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -8,6 +8,7 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
 #include <linux/cache.h>
+#include <linux/irqflags.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/personality.h>
@@ -658,6 +659,8 @@ static void do_signal(struct pt_regs *regs)
 asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
         __u32 thread_info_flags)
 {
+        local_irq_enable();
+
         /* deal with pending signal delivery */
         if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
                 do_signal(regs);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b7517e3abc85..cbea618af0b4 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -14,6 +14,7 @@
 #include <linux/bug.h>
 #include <linux/compiler.h>
 #include <linux/init.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -364,21 +365,26 @@ static int regs_to_trapnr(struct pt_regs *regs)
         return (regs->cp0_cause >> 2) & 0x1f;
 }
 
-static DEFINE_SPINLOCK(die_lock);
+static DEFINE_RAW_SPINLOCK(die_lock);
 
 void __noreturn die(const char *str, struct pt_regs *regs)
 {
         static int die_counter;
         int sig = SIGSEGV;
 #ifdef CONFIG_MIPS_MT_SMTC
-        unsigned long dvpret = dvpe();
+        unsigned long dvpret;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
+        oops_enter();
+
         if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP)
                 sig = 0;
 
         console_verbose();
-        spin_lock_irq(&die_lock);
+        raw_spin_lock_irq(&die_lock);
+#ifdef CONFIG_MIPS_MT_SMTC
+        dvpret = dvpe();
+#endif /* CONFIG_MIPS_MT_SMTC */
         bust_spinlocks(1);
 #ifdef CONFIG_MIPS_MT_SMTC
         mips_mt_regdump(dvpret);
@@ -387,7 +393,9 @@ void __noreturn die(const char *str, struct pt_regs *regs)
         printk("%s[#%d]:\n", str, ++die_counter);
         show_registers(regs);
         add_taint(TAINT_DIE);
-        spin_unlock_irq(&die_lock);
+        raw_spin_unlock_irq(&die_lock);
+
+        oops_exit();
 
         if (in_interrupt())
                 panic("Fatal exception in interrupt");
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 2cd50ad0d5c6..3efcb065f78a 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -192,7 +192,7 @@ static struct tc *get_tc(int index)
         }
         spin_unlock(&vpecontrol.tc_list_lock);
 
-        return NULL;
+        return res;
 }
 
 /* allocate a vpe and associate it with this minor (or index) */