Yang Jihong ca5e22042c hwtracing: hisi_ptt: Move type check to the beginning of hisi_ptt_pmu_event_init() ... [ Upstream commit 06226d120a28f146abd3637799958a4dc4dbb7a1 ] 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 Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-26 18:20:06 -04:00
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hisi_ptt.c	hwtracing: hisi_ptt: Move type check to the beginning of hisi_ptt_pmu_event_init()	2024-03-26 18:20:06 -04:00
hisi_ptt.h	hwtracing: hisi_ptt: Fix potential sleep in atomic context	2023-06-21 11:52:39 +01:00