panic, smp: provide smp_send_stop() wrapper on UP too
Impact: cleanup, no code changed
Remove an ugly #ifdef CONFIG_SMP from panic(), by providing
an smp_send_stop() wrapper on UP too.
LKML-Reference: <49B91A7E.76E4.0078.0@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 2d3bcb6..a69db82 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -38,7 +38,7 @@
/*
* main cross-CPU interfaces, handles INIT, TLB flush, STOP, etc.
* (defined in asm header):
- */
+ */
/*
* stops all CPUs but the current one:
@@ -122,6 +122,8 @@
#else /* !SMP */
+static inline void smp_send_stop(void) { }
+
/*
* These macros fold the SMP functionality into a single CPU system
*/
diff --git a/kernel/panic.c b/kernel/panic.c
index 57fb005..ca75e81 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -85,14 +85,12 @@
*/
crash_kexec(NULL);
-#ifdef CONFIG_SMP
/*
* Note smp_send_stop is the usual smp shutdown function, which
* unfortunately means it may not be hardened to work in a panic
* situation.
*/
smp_send_stop();
-#endif
atomic_notifier_call_chain(&panic_notifier_list, 0, buf);
