microblaze: drop 'oldset' argument of do_notify_resume()

never used...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 11 insertions, 19 deletions

diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
index ea2dd42fdc22..75c3ea1f48a1 100644
--- a/arch/microblaze/kernel/entry-nommu.S
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -135,7 +135,6 @@ ret_from_intr:
 1:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
         beqid   r11, no_intr_resched
         addk    r5, r1, r0
-        addk    r7, r0, r0
         bralid  r15, do_notify_resume
         addk    r6, r0, r0
 
@@ -485,9 +484,8 @@ work_pending:
 1:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
         beqi    r11, no_work_pending
         addk    r5, r1, r0
-        addik   r7, r0, 1
         bralid  r15, do_notify_resume
-        addk    r6, r0, r0
+        addik   r6, r0, 1
         bri     no_work_pending
 
 ENTRY(ret_to_user)
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 3cee9130a392..daff9e5e4a1f 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -434,9 +434,8 @@ C_ENTRY(ret_from_trap):
         beqi    r11, 1f;                /* Signals to handle, handle them */
 
         addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
-        addi    r7, r0, 1;              /* Arg 3: int in_syscall */
         bralid  r15, do_notify_resume;  /* Handle any signals */
-        add     r6, r0, r0;             /* Arg 2: sigset_t *oldset */
+        addi    r6, r0, 1;              /* Arg 2: int in_syscall */
 
 /* Finally, return to user state.  */
 1:      set_bip;                        /*  Ints masked for state restore */
@@ -637,9 +636,8 @@ C_ENTRY(ret_from_exc):
          * the normal entry sequence, so that it may be safely restored
          * (in a possibly modified form) after do_notify_resume returns. */
         addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
-        addi    r7, r0, 0;              /* Arg 3: int in_syscall */
         bralid  r15, do_notify_resume;  /* Handle any signals */
-        add     r6, r0, r0;             /* Arg 2: sigset_t *oldset */
+        addi    r6, r0, 0;              /* Arg 2: int in_syscall */
 
 /* Finally, return to user state.  */
 1:      set_bip;                        /* Ints masked for state restore */
@@ -735,10 +733,9 @@ ret_from_irq:
         andi    r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
         beqid   r11, no_intr_resched
 /* Handle a signal return; Pending signals should be in r18. */
-        addi    r7, r0, 0; /* Arg 3: int in_syscall */
         addik   r5, r1, 0; /* Arg 1: struct pt_regs *regs */
         bralid  r15, do_notify_resume;  /* Handle any signals */
-        add     r6, r0, r0; /* Arg 2: sigset_t *oldset */
+        addi    r6, r0, 0; /* Arg 2: int in_syscall */
 
 /* Finally, return to user state. */
 no_intr_resched:
@@ -873,9 +870,8 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
         beqi    r11, 1f;                /* Signals to handle, handle them */
 
         addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
-        addi  r7, r0, 0;        /* Arg 3: int in_syscall */
         bralid  r15, do_notify_resume;  /* Handle any signals */
-        add     r6, r0, r0;             /* Arg 2: sigset_t *oldset */
+        addi  r6, r0, 0;        /* Arg 2: int in_syscall */
 
 /* Finally, return to user state.  */
 1:      swi     CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 449886db35a2..7f4c7bef1642 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -339,13 +339,14 @@ handle_signal(unsigned long sig, struct k_sigaction *ka,
  * the kernel can handle, and then we build all the user-level signal handling
  * stack-frames in one go after that.
  */
-static int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
+static void do_signal(struct pt_regs *regs, int in_syscall)
 {
         siginfo_t info;
         int signr;
         struct k_sigaction ka;
+        sigset_t *oldset;
 #ifdef DEBUG_SIG
-        printk(KERN_INFO "do signal: %p %p %d\n", regs, oldset, in_syscall);
+        printk(KERN_INFO "do signal: %p %d\n", regs, in_syscall);
         printk(KERN_INFO "do signal2: %lx %lx %ld [%lx]\n", regs->pc, regs->r1,
                         regs->r12, current_thread_info()->flags);
 #endif
@@ -370,7 +371,7 @@ static int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
                         current_thread_info()->status &=
                             ~TS_RESTORE_SIGMASK;
                 }
-                return 1;
+                return;
         }
 
         if (in_syscall)
@@ -384,12 +385,9 @@ static int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
                 current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
                 sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
         }
-
-        /* Did we come from a system call? */
-        return 0;
 }
 
-void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
+void do_notify_resume(struct pt_regs *regs, int in_syscall)
 {
         /*
          * We want the common case to go fast, which
@@ -401,7 +399,7 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
                 return;
 
         if (test_thread_flag(TIF_SIGPENDING))
-                do_signal(regs, oldset, in_syscall);
+                do_signal(regs, in_syscall);
 
         if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
                 tracehook_notify_resume(regs);