perf/x86/intel: Factor out intel_pmu_check_extra_regs
Each Hybrid PMU has to check and update its own extra registers before registration. The intel_pmu_check_extra_regs will be reused later to check the extra registers of each hybrid PMU. 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> Link: https://lkml.kernel.org/r/1618237865-33448-14-git-send-email-kan.liang@linux.intel.com
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