From: Leo Yan <leo.yan@xxxxxxxxxx> 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@xxxxxxxxxx> Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx> Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> Reviewed-by: Mike Leach <mike.leach@xxxxxxxxxx> Tested-by: Mike Leach <mike.leach@xxxxxxxxxx> Tested-by: Thomas Backlund <tmb@xxxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Suzuki Poulouse <suzuki.poulose@xxxxxxx> Cc: Tor Jeremiassen <tor@xxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Link: http://lore.kernel.org/lkml/20200505133642.4756-1-leo.yan@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -87,6 +87,9 @@ struct cs_etm_queue { struct cs_etm_packet *packet; }; +/* 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_timeless_queues(struct cs_etm_auxtrace *etm, pid_t tid, u64 time_); --- a/tools/perf/util/cs-etm.h +++ b/tools/perf/util/cs-etm.h @@ -53,9 +53,6 @@ enum { CS_ETMV4_PRIV_MAX, }; -/* RB tree for quick conversion between traceID and metadata pointers */ -struct intlist *traceid_list; - #define KiB(x) ((x) * 1024) #define MiB(x) ((x) * 1024 * 1024)