From: Kan Liang kan.liang@linux.intel.com

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") Reviewed-by: Andi Kleen ak@linux.intel.com Signed-off-by: Kan Liang kan.liang@linux.intel.com Cc: stable@vger.kernel.org ---

The patch was posted as a part of the "perf: Add Sapphire Rapids server uncore support" patch set. But it doesn't depend on the other patches in the patch set. The bugfix can be accepted and merged separately.

https://lore.kernel.org/lkml/cb0d2d43-102a-994c-f777-e11d61c77bf5@linux.inte...

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 1d65293..abfb1e8 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)