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perf/x86/intel/uncore: Fix invalid unit check

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commit e2bb9fab08cbcc7922050c7eb0bd650807abfa4e upstream.

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@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1629991963-102621-3-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kan Liang 2021-08-26 08:32:38 -07:00 committed by Greg Kroah-Hartman
parent 398318fb96
commit 54cabed24b
1 changed files with 1 additions and 1 deletions
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2
arch/x86/events/intel/uncore_discovery.h
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@ -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)