From: Leo Yan leo.yan@linaro.org

[ Upstream commit 9d604aad4bb022e848dec80d6fe5f73fe87061a2 ]

Macro TO_CS_QUEUE_NR definition has a typo, which uses 'trace_id_chan' as its parameter, this doesn't match with its definition body which uses 'trace_chan_id'. So renames the parameter to 'trace_chan_id'.

It's luck to have a local variable 'trace_chan_id' in the function cs_etm__setup_queue(), even we wrongly define the macro TO_CS_QUEUE_NR, the local variable 'trace_chan_id' is used rather than the macro's parameter 'trace_id_chan'; so the compiler doesn't complain for this before.

After renaming the parameter, it leads to a compiling error due cs_etm__setup_queue() has no variable 'trace_id_chan'. This patch uses the variable 'trace_chan_id' for the macro so that fixes the compiling error.

Signed-off-by: Leo Yan leo.yan@linaro.org Reviewed-by: Mathieu Poirier mathieu.poirier@linaro.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Mark Rutland mark.rutland@arm.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Suzuki Poulouse suzuki.poulose@arm.com Cc: coresight ml coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lore.kernel.org/lkml/20191021074808.25795-1-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/cs-etm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 4ba0f871f086d..f5f855fff412e 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -110,7 +110,7 @@ static int cs_etm__decode_data_block(struct cs_etm_queue *etmq); * encode the etm queue number as the upper 16 bit and the channel as * the lower 16 bit. */ -#define TO_CS_QUEUE_NR(queue_nr, trace_id_chan) \ +#define TO_CS_QUEUE_NR(queue_nr, trace_chan_id) \ (queue_nr << 16 | trace_chan_id) #define TO_QUEUE_NR(cs_queue_nr) (cs_queue_nr >> 16) #define TO_TRACE_CHAN_ID(cs_queue_nr) (cs_queue_nr & 0x0000ffff) @@ -819,7 +819,7 @@ static int cs_etm__setup_queue(struct cs_etm_auxtrace *etm, * Note that packets decoded above are still in the traceID's packet * queue and will be processed in cs_etm__process_queues(). */ - cs_queue_nr = TO_CS_QUEUE_NR(queue_nr, trace_id_chan); + cs_queue_nr = TO_CS_QUEUE_NR(queue_nr, trace_chan_id); ret = auxtrace_heap__add(&etm->heap, cs_queue_nr, timestamp); out: return ret;