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-rw-r--r--tools/perf/util/util.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index c9626c206208..dc58254a2b69 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -43,7 +43,9 @@ size_t hex_width(u64 v);
int hex2u64(const char *ptr, u64 *val);
extern unsigned int page_size;
-extern int cacheline_size;
+int __pure cacheline_size(void);
+
+int sysctl__max_stack(void);
int fetch_kernel_version(unsigned int *puint,
char *str, size_t str_sz);