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Subject[PATCH 09/46] kernel: Move prototype declaration to header file include/linux/hw_breakpoint.h
Add prototype declaration of function to header file
include/linux/hw_breakpoint.h because it is used by more than one file.

This eliminates the following warning in kernel/events/hw_breakpoint.c:
kernel/events/hw_breakpoint.c:231:13: warning: no previous prototype for ‘arch_unregister_hw_breakpoint’ [-Wmissing-prototypes]

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

diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 0464c85..9ff0155 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -67,6 +67,8 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context);

+void arch_unregister_hw_breakpoint(struct perf_event *bp);
extern int register_perf_hw_breakpoint(struct perf_event *bp);
extern int __register_perf_hw_breakpoint(struct perf_event *bp);
extern void unregister_hw_breakpoint(struct perf_event *bp);
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