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-rw-r--r--kernel/events/internal.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 09b1537..6dc725a 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -201,10 +201,6 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
-/* Callchain handling */
-extern struct perf_callchain_entry *
-perf_callchain(struct perf_event *event, struct pt_regs *regs);
-
static inline int get_recursion_context(int *recursion)
{
int rctx;
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