consolidate kernel-side struct sigaction declarations

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

arch/sparc/include/asm/signal.h

@@ -22,6 +22,7 @@
 #define SA_STATIC_ALLOC         0x8000
 
 #define __ARCH_HAS_KA_RESTORER
+#define __ARCH_HAS_SA_RESTORER
 
 #endif /* !(__ASSEMBLY__) */
 #endif /* !(__SPARC_SIGNAL_H) */

arch/sparc/include/uapi/asm/signal.h

@@ -153,12 +153,14 @@ struct sigstack {
 
 #include <asm-generic/signal-defs.h>
 
+#ifndef __KERNEL__
 struct __new_sigaction {
 	__sighandler_t		sa_handler;
 	unsigned long		sa_flags;
 	__sigrestore_t		sa_restorer;  /* not used by Linux/SPARC yet */
 	__new_sigset_t		sa_mask;
 };
+#endif
 
 struct __old_sigaction {
 	__sighandler_t		sa_handler;

arch/sparc/kernel/systbls.h

@@ -3,8 +3,8 @@
 
 #include <linux/kernel.h>
 #include <linux/types.h>
+#include <linux/signal.h>
 #include <asm/utrap.h>
-#include <asm/signal.h>
 
 extern asmlinkage unsigned long sys_getpagesize(void);
 extern asmlinkage long sparc_pipe(struct pt_regs *regs);