Merge tag 'perf-core-for-mingo-20161005' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

- Intel PT timestamp fixes (Adrian Hunter)

- Fix Intel JSON fixed counter conversions (Andi Kleen)

- Sync memcpy, cpufeatures and bpf headers with the kernel (Arnaldo Carvalho de Melo)

- Add some more tool tips (Donghyun Kim, Kim SeonYoung, Nambong Ha)

- Fix libtraceevent's kbuffer_read_at_offset() handling of offsets before or
  equal the first event (Namhyung Kim)

- Fix uretprobe probe placement on ppc64le (Ravi Bangoria)

- Support building C++ source files and add feature detection for g++,
  prep work for supporting a builtin clang/llvm, to remove the need for having
  that toolchain installed to automagically build BPF scriptlets that then
  gets uploaded to the kernel via sys_bpf() (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c
index 3bcada3ae05a..65984f1c2974 100644
--- a/tools/lib/traceevent/kbuffer-parse.c
+++ b/tools/lib/traceevent/kbuffer-parse.c
@@ -622,6 +622,7 @@ void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset,
 
 	/* Reset the buffer */
 	kbuffer_load_subbuffer(kbuf, kbuf->subbuffer);
+	data = kbuffer_read_event(kbuf, ts);
 
 	while (kbuf->curr < offset) {
 		data = kbuffer_next_event(kbuf, ts);