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authorZide Chen <zide.chen@intel.com>2026-06-11 09:00:29 -0700
committerPeter Zijlstra <peterz@infradead.org>2026-06-30 10:57:04 +0200
commit3012af7df3430788eddd30b3c6654d0a0a5f06c6 (patch)
tree66168c164d18492908e49d96c81977802629e949 /tools/perf/scripts/python/flamegraph.py
parentcbbc25209ce34f1baeec615553b93904a7a5d8cd (diff)
perf/x86/intel/uncore: Keep PCI PMUs working when MMIO/MSR setup fails
uncore_event_cpu_online() returns -ENOMEM early when both the MSR and MMIO box allocations fail. This also aborts PCI uncore setup, even though PCI PMUs are independent of the MSR/MMIO paths. Remove the early return so PCI uncore setup always runs regardless of whether MSR or MMIO box allocation succeeds. Fixes: 3da04b8a00dd ("perf/x86/intel/uncore: Support MMIO type uncore blocks") Signed-off-by: Zide Chen <zide.chen@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Link: https://patch.msgid.link/20260611160033.66760-5-zide.chen@intel.com
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