powerpc: get rid of restore_sigmask()

... it's just a call of set_current_blocked() now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/powerpc/kernel/signal.c

@@ -51,15 +51,6 @@ void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
         return (void __user *)newsp;
 }
 
-
-/*
- * Restore the user process's signal mask
- */
-void restore_sigmask(sigset_t *set)
-{
-	set_current_blocked(set);
-}
-
 static void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
 				  int has_handler)
 {

arch/powerpc/kernel/signal.h

@@ -14,7 +14,6 @@ extern void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_fla
 
 extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
 				  size_t frame_size, int is_32);
-extern void restore_sigmask(sigset_t *set);
 
 extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
 			   siginfo_t *info, sigset_t *oldset,

arch/powerpc/kernel/signal_32.c

@@ -919,7 +919,7 @@ static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int
 	if (!access_ok(VERIFY_READ, mcp, sizeof(*mcp)))
 		return -EFAULT;
 #endif
-	restore_sigmask(&set);
+	set_current_blocked(&set);
 	if (restore_user_regs(regs, mcp, sig))
 		return -EFAULT;
 
@@ -1273,7 +1273,7 @@ long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
 	set.sig[0] = sigctx.oldmask;
 	set.sig[1] = sigctx._unused[3];
 #endif
-	restore_sigmask(&set);
+	set_current_blocked(&set);
 
 	sr = (struct mcontext __user *)from_user_ptr(sigctx.regs);
 	addr = sr;

arch/powerpc/kernel/signal_64.c

@@ -335,7 +335,7 @@ int sys_swapcontext(struct ucontext __user *old_ctx,
 
 	if (__copy_from_user(&set, &new_ctx->uc_sigmask, sizeof(set)))
 		do_exit(SIGSEGV);
-	restore_sigmask(&set);
+	set_current_blocked(&set);
 	if (restore_sigcontext(regs, NULL, 0, &new_ctx->uc_mcontext))
 		do_exit(SIGSEGV);
 
@@ -364,7 +364,7 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
 
 	if (__copy_from_user(&set, &uc->uc_sigmask, sizeof(set)))
 		goto badframe;
-	restore_sigmask(&set);
+	set_current_blocked(&set);
 	if (restore_sigcontext(regs, NULL, 1, &uc->uc_mcontext))
 		goto badframe;