Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

Pull pile 2 of execve and kernel_thread unification work from Al Viro:
 "Stuff in there: kernel_thread/kernel_execve/sys_execve conversions for
  several more architectures plus assorted signal fixes and cleanups.

  There'll be more (in particular, real fixes for the alpha
  do_notify_resume() irq mess)..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (43 commits)
  alpha: don't open-code trace_report_syscall_{enter,exit}
  Uninclude linux/freezer.h
  m32r: trim masks
  avr32: trim masks
  tile: don't bother with SIGTRAP in setup_frame
  microblaze: don't bother with SIGTRAP in setup_rt_frame()
  mn10300: don't bother with SIGTRAP in setup_frame()
  frv: no need to raise SIGTRAP in setup_frame()
  x86: get rid of duplicate code in case of CONFIG_VM86
  unicore32: remove pointless test
  h8300: trim _TIF_WORK_MASK
  parisc: decide whether to go to slow path (tracesys) based on thread flags
  parisc: don't bother looping in do_signal()
  parisc: fix double restarts
  bury the rest of TIF_IRET
  sanitize tsk_is_polling()
  bury _TIF_RESTORE_SIGMASK
  unicore32: unobfuscate _TIF_WORK_MASK
  mips: NOTIFY_RESUME is not needed in TIF masks
  mips: merge the identical "return from syscall" per-ABI code
  ...

Conflicts:
	arch/arm/include/asm/thread_info.h

2 files changed, 3 insertions, 7 deletions

diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
index 6c610234ffab..008f30433d22 100644
--- a/arch/microblaze/include/asm/thread_info.h
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -121,7 +121,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NEED_RESCHED        3 /* rescheduling necessary */
 /* restore singlestep on return to user mode */
 #define TIF_SINGLESTEP          4
-#define TIF_IRET                5 /* return with iret */
 #define TIF_MEMDIE              6       /* is terminating due to OOM killer */
 #define TIF_SYSCALL_AUDIT       9       /* syscall auditing active */
 #define TIF_SECCOMP             10      /* secure computing */
@@ -134,7 +133,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
 #define _TIF_SINGLESTEP         (1 << TIF_SINGLESTEP)
-#define _TIF_IRET               (1 << TIF_IRET)
 #define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
 #define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP            (1 << TIF_SECCOMP)
@@ -184,6 +182,7 @@ static inline bool test_and_clear_restore_sigmask(void)
         ti->status &= ~TS_RESTORE_SIGMASK;
         return true;
 }
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 #endif
 
 #endif /* __KERNEL__ */
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index c1220dbf87cd..3847e5b9c601 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -254,10 +254,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         set_fs(USER_DS);
 
-        /* the tracer may want to single-step inside the handler */
-        if (test_thread_flag(TIF_SINGLESTEP))
-                ptrace_notify(SIGTRAP);
-
 #ifdef DEBUG_SIG
         printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
                 current->comm, current->pid, frame, regs->pc);
@@ -315,7 +311,8 @@ handle_signal(unsigned long sig, struct k_sigaction *ka,
         if (ret)
                 return;
 
-        signal_delivered(sig, info, ka, regs, 0);
+        signal_delivered(sig, info, ka, regs,
+                        test_thread_flag(TIF_SINGLESTEP));
 }
 
 /*