[PATCH] arch/x86/kernel/kprobes.c: quiet sprase noise about external linkage

[H Hartley Sweeten <hartleys@visionengravers.com>]

The function arch_unoptimize_kprobes is already declared extern in
<linux/kprobes.h>. The actual function should not be marked as extern.
This quiets the following sparse noise:

warning: function 'arch_unoptimize_kprobes' with external linkage has definition

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>

---

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index f1a6244..e8d5903 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -1483,8 +1483,8 @@ static void __kprobes setup_unoptimize_kprobe(struct text_poke_param *tprm,
  * Recover original instructions and breakpoints from relative jumps.
  * Caller must call with locking kprobe_mutex.
  */
-extern void arch_unoptimize_kprobes(struct list_head *oplist,
-				    struct list_head *done_list)
+void arch_unoptimize_kprobes(struct list_head *oplist,
+			     struct list_head *done_list)
 {
 	struct optimized_kprobe *op, *tmp;
 	int c = 0;