signal: Define __ARCH_HAS_SA_RESTORER so we know whether to clear sa_restorer
Vaguely based on upstream commit 574c4866e33d 'consolidate kernel-side
struct sigaction declarations'.
flush_signal_handlers() needs to know whether sigaction::sa_restorer
is defined, not whether SA_RESTORER is defined. Define the
__ARCH_HAS_SA_RESTORER macro to indicate this.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h
index aa42fe3..d07beb3 100644
--- a/arch/sparc/include/asm/signal.h
+++ b/arch/sparc/include/asm/signal.h
@@ -192,6 +192,7 @@
unsigned long sa_flags;
void (*sa_restorer)(void); /* not used by Linux/SPARC yet */
};
+#define __ARCH_HAS_SA_RESTORER
typedef struct sigaltstack {
void __user *ss_sp;