Patch "perf intel-pt: Move decoder error setting into one condition" has been added to the 4.4-stable tree

Patch "perf intel-pt: Move decoder error setting into one condition" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    perf intel-pt: Move decoder error setting into one condition

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-intel-pt-move-decoder-error-setting-into-one-condition.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 22c06892332d8916115525145b78e606e9cc6492 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 26 May 2017 11:17:02 +0300
Subject: perf intel-pt: Move decoder error setting into one condition

From: Adrian Hunter <adrian.hunter@intel.com>

commit 22c06892332d8916115525145b78e606e9cc6492 upstream.

Move decoder error setting into one condition.

Cc'ed to stable because later fixes depend on it.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-2-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>

---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c |   11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -2096,15 +2096,18 @@ const struct intel_pt_state *intel_pt_de
 		}
 	} while (err == -ENOLINK);
 
-	decoder->state.err = err ? intel_pt_ext_err(err) : 0;
+	if (err) {
+		decoder->state.err = intel_pt_ext_err(err);
+		decoder->state.from_ip = decoder->ip;
+	} else {
+		decoder->state.err = 0;
+	}
+
 	decoder->state.timestamp = decoder->timestamp;
 	decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
 	decoder->state.cr3 = decoder->cr3;
 	decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
 
-	if (err)
-		decoder->state.from_ip = decoder->ip;
-
 	return &decoder->state;
 }
 


Patches currently in stable-queue which might be from adrian.hunter@intel.com are

queue-4.4/perf-intel-pt-ensure-ip-is-zero-when-state-is-intel_pt_state_no_ip.patch
queue-4.4/perf-intel-pt-move-decoder-error-setting-into-one-condition.patch
queue-4.4/perf-intel-pt-clear-fup-flag-on-error.patch
queue-4.4/perf-intel-pt-improve-sample-timestamp.patch
queue-4.4/perf-intel-pt-fix-missing-stack-clear.patch