1 files changed, 8 insertions, 3 deletions

diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
index f2611655ab5..1eb804fd3fb 100644
--- a/tools/perf/util/include/linux/kernel.h
+++ b/tools/perf/util/include/linux/kernel.h
@@ -28,6 +28,8 @@
         (type *)((char *)__mptr - offsetof(type, member)); })
 #endif
 
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+
 #ifndef max
 #define max(x, y) ({                            \
         typeof(x) _max1 = (x);                  \
@@ -85,16 +87,19 @@ simple_strtoul(const char *nptr, char **endptr, int base)
         return strtoul(nptr, endptr, base);
 }
 
+int eprintf(int level,
+            const char *fmt, ...) __attribute__((format(printf, 2, 3)));
+
 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
 #endif
 
 #define pr_err(fmt, ...) \
-        do { fprintf(stderr, pr_fmt(fmt), ##__VA_ARGS__); } while (0)
+        eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_warning(fmt, ...) \
-        do { fprintf(stderr, pr_fmt(fmt), ##__VA_ARGS__); } while (0)
+        eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_info(fmt, ...) \
-        do { fprintf(stderr, pr_fmt(fmt), ##__VA_ARGS__); } while (0)
+        eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_debug(fmt, ...) \
         eprintf(1, pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_debugN(n, fmt, ...) \