linux-kernel - [PATCH 5.4 01/22] perf cs-etm: Move definition of traceid

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Message-Id: <20201016090437.378628931@linuxfoundation.org>
Date:   Fri, 16 Oct 2020 11:07:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Thomas Backlund <tmb@...eia.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Mike Leach <mike.leach@...aro.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Suzuki Poulouse <suzuki.poulose@....com>,
        Tor Jeremiassen <tor@...com>,
        linux-arm-kernel@...ts.infradead.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Paul Barker <pbarker@...sulko.com>
Subject: [PATCH 5.4 01/22] perf cs-etm: Move definition of traceid_list global variable from header file

From: Leo Yan <leo.yan@...aro.org>

commit 168200b6d6ea0cb5765943ec5da5b8149701f36a upstream.

The variable 'traceid_list' is defined in the header file cs-etm.h,
if multiple C files include cs-etm.h the compiler might complaint for
multiple definition of 'traceid_list'.

To fix multiple definition error, move the definition of 'traceid_list'
into cs-etm.c.

Fixes: cd8bfd8c973e ("perf tools: Add processing of coresight metadata")
Reported-by: Thomas Backlund <tmb@...eia.org>
Signed-off-by: Leo Yan <leo.yan@...aro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Reviewed-by: Mike Leach <mike.leach@...aro.org>
Tested-by: Mike Leach <mike.leach@...aro.org>
Tested-by: Thomas Backlund <tmb@...eia.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Suzuki Poulouse <suzuki.poulose@....com>
Cc: Tor Jeremiassen <tor@...com>
Cc: linux-arm-kernel@...ts.infradead.org
Link: http://lore.kernel.org/lkml/20200505133642.4756-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Paul Barker <pbarker@...sulko.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 tools/perf/util/cs-etm.c |    3 +++
 tools/perf/util/cs-etm.h |    3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)

--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -94,6 +94,9 @@ struct cs_etm_queue {
 	struct cs_etm_traceid_queue **traceid_queues;
 };
 
+/* RB tree for quick conversion between traceID and metadata pointers */
+static struct intlist *traceid_list;
+
 static int cs_etm__update_queues(struct cs_etm_auxtrace *etm);
 static int cs_etm__process_queues(struct cs_etm_auxtrace *etm);
 static int cs_etm__process_timeless_queues(struct cs_etm_auxtrace *etm,
--- a/tools/perf/util/cs-etm.h
+++ b/tools/perf/util/cs-etm.h
@@ -114,9 +114,6 @@ enum cs_etm_isa {
 	CS_ETM_ISA_T32,
 };
 
-/* RB tree for quick conversion between traceID and metadata pointers */
-struct intlist *traceid_list;
-
 struct cs_etm_queue;
 
 struct cs_etm_packet {