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Subject[PATCH 30/46] kernel: Add prototype declaration to header file include/linux/smp.h
Add prototype definition of function to header file include/linux/smp.h
because it is used by more than one file.

This eliminates the following warning in kernel/smp.c:
kernel/smp.c:489:13: warning: no previous prototype for ‘smp_announce’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <>
Reviewed-by: Josh Triplett <>
include/linux/smp.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/smp.h b/include/linux/smp.h
index 3834f43..0a9ca03 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -26,6 +26,8 @@ struct call_single_data {
u16 flags;

+void smp_announce(void);
/* total number of cpus in this system (may exceed NR_CPUS) */
extern unsigned int total_cpus;

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