Commit d6a267b4 authored Jun 07, 2018 by Adrian Hunter Committed by Greg Kroah-Hartman Jul 03, 2018

perf intel-pt: Fix packet decoding of CYC packets



commit 621a5a327c1e36ffd7bb567f44a559f64f76358f upstream.

Use a 64-bit type so that the cycle count is not limited to 32-bits.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1528371002-8862-1-git-send-email-adrian.hunter@intel.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent d129ab79

tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -281,7 +281,7 @@ static int intel_pt_get_cyc(unsigned int byte, const unsigned char *buf,
		if (len < offs)
		return INTEL_PT_NEED_MORE_BYTES;
		byte = buf[offs++];
		payload \|= (byte >> 1) << shift;
		payload \|= ((uint64_t)byte >> 1) << shift;
		}

		packet->type = INTEL_PT_CYC;