The following commit has been merged into the perf/core branch of tip: Commit-ID: e2bb9fab08cbcc7922050c7eb0bd650807abfa4e Gitweb: https://git.kernel.org/tip/e2bb9fab08cbcc7922050c7eb0bd650807abfa4e Author: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> AuthorDate: Thu, 26 Aug 2021 08:32:38 -07:00 Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> CommitterDate: Tue, 31 Aug 2021 13:59:35 +02:00 perf/x86/intel/uncore: Fix invalid unit check The uncore unit with the type ID 0 and the unit ID 0 is missed. The table3 of the uncore unit maybe 0. The uncore_discovery_invalid_unit() mistakenly treated it as an invalid value. Remove the !unit.table3 check. Fixes: edae1f06c2cd ("perf/x86/intel/uncore: Parse uncore discovery tables") Signed-off-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lkml.kernel.org/r/1629991963-102621-3-git-send-email-kan.liang@xxxxxxxxxxxxxxx --- arch/x86/events/intel/uncore_discovery.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/uncore_discovery.h b/arch/x86/events/intel/uncore_discovery.h index 7280c8a..6d73561 100644 --- a/arch/x86/events/intel/uncore_discovery.h +++ b/arch/x86/events/intel/uncore_discovery.h @@ -30,7 +30,7 @@ #define uncore_discovery_invalid_unit(unit) \ - (!unit.table1 || !unit.ctl || !unit.table3 || \ + (!unit.table1 || !unit.ctl || \ unit.table1 == -1ULL || unit.ctl == -1ULL || \ unit.table3 == -1ULL)
