cris: switch to generic old sigsuspend

Signed-off-by: Al Viro <[e-mail]>

arch/cris/Kconfig

···
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS2
 	select GENERIC_SIGALTSTACK
+	select OLD_SIGSUSPEND
 
 config HZ
 	int

arch/cris/arch-v10/kernel/signal.c

···
 
 void do_signal(int canrestart, struct pt_regs *regs);
 
-/*
- * Atomically swap in the new signal mask, and wait for a signal.  Define
- * dummy arguments to be able to reach the regs argument.  (Note that this
- * arrangement relies on old_sigset_t occupying one register.)
- */
-int sys_sigsuspend(old_sigset_t mask)
-{
-	sigset_t blocked;
-	siginitset(&blocked, mask);
-	return sigsuspend(&blocked);
-}
-
 int sys_sigaction(int sig, const struct old_sigaction __user *act,
 	struct old_sigaction *oact)
 {

arch/cris/arch-v32/kernel/signal.c

···
 void do_signal(int restart, struct pt_regs *regs);
 void keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
 		      struct pt_regs *regs);
-/*
- * Swap in the new signal mask, and wait for a signal. Define some
- * dummy arguments to be able to reach the regs argument.
- */
-int
-sys_sigsuspend(old_sigset_t mask)
-{
-	sigset_t blocked;
-	siginitset(&blocked, mask);
-	return sigsuspend(&blocked);
-}
 
 int
 sys_sigaction(int signal, const struct old_sigaction *act,