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linux/drivers/hwtracing/ptt
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Yang Jihong 06226d120a hwtracing: hisi_ptt: Move type check to the beginning of hisi_ptt_pmu_event_init() 
When perf_init_event() calls perf_try_init_event() to init pmu driver,
searches for the next pmu driver only when the return value is -ENOENT.
Therefore, hisi_ptt_pmu_event_init() needs to check the type at the
beginning of the function.
Otherwise, in the case of perf-task mode, perf_try_init_event() returns
-EOPNOTSUPP and skips subsequent pmu drivers, causes perf_init_event() to
fail.

Fixes: ff0de066b4 ("hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240108121906.3514820-1-yangjihong1@huawei.com
History 2024-02-26 09:54:38 +00:00
..
hisi_ptt.c hwtracing: hisi_ptt: Move type check to the beginning of hisi_ptt_pmu_event_init() 2024-02-26 09:54:38 +00:00
hisi_ptt.h hwtracing: hisi_ptt: Disable interrupt after trace end 2023-11-16 11:36:27 +00:00
Kconfig hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device 2022-09-08 16:26:17 -06:00
Makefile hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device 2022-09-08 16:26:17 -06:00