From: Yicong Yang Date: Fri, 29 Aug 2025 10:14:19 +0000 (+0800) Subject: drivers/perf: hisi: Relax the event ID check in the framework X-Git-Tag: v6.18-rc1~210^2~5^2~9 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=43de0ac332b815cf56dbdce63687de9acfd35d49;p=thirdparty%2Flinux.git drivers/perf: hisi: Relax the event ID check in the framework Event ID is only using the attr::config bit [7, 0] but we check the event range using the whole 64bit field. It blocks the usage of the rest field of attr::config. Relax the check by only using the bit [7, 0]. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Signed-off-by: Yushan Wang Signed-off-by: Will Deacon --- diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index a449651f79c9f..6594d64b03a9e 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -234,7 +234,7 @@ int hisi_uncore_pmu_event_init(struct perf_event *event) return -EINVAL; hisi_pmu = to_hisi_pmu(event->pmu); - if (event->attr.config > hisi_pmu->check_event) + if ((event->attr.config & HISI_EVENTID_MASK) > hisi_pmu->check_event) return -EINVAL; if (hisi_pmu->on_cpu == -1) diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h index 777675838b808..e69660f72be67 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.h +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h @@ -43,7 +43,8 @@ return FIELD_GET(GENMASK_ULL(hi, lo), event->attr.config); \ } -#define HISI_GET_EVENTID(ev) (ev->hw.config_base & 0xff) +#define HISI_EVENTID_MASK GENMASK(7, 0) +#define HISI_GET_EVENTID(ev) ((ev)->hw.config_base & HISI_EVENTID_MASK) #define HISI_PMU_EVTYPE_BITS 8 #define HISI_PMU_EVTYPE_SHIFT(idx) ((idx) % 4 * HISI_PMU_EVTYPE_BITS)