Commit b4e12b2d authored by Namhyung Kim's avatar Namhyung Kim Committed by Peter Zijlstra
Browse files

perf: Kill __PERF_SAMPLE_CALLCHAIN_EARLY 



There's no in-tree user anymore.  Let's get rid of it.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908214104.3851807-3-namhyung@kernel.org
parent 16817ad7

arch/x86/events/amd/ibs.c

+0 −10
Original line number Diff line number Diff line
@@ -300,16 +300,6 @@ static int perf_ibs_init(struct perf_event *event) 
	hwc->config_base = perf_ibs->msr;

	hwc->config = config;



	/*

	 * rip recorded by IbsOpRip will not be consistent with rsp and rbp

	 * recorded as part of interrupt regs. Thus we need to use rip from

	 * interrupt regs while unwinding call stack. Setting _EARLY flag

	 * makes sure we unwind call-stack before perf sample rip is set to

	 * IbsOpRip.

	 */

	if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN)

		event->attr.sample_type |= __PERF_SAMPLE_CALLCHAIN_EARLY;



	return 0;

}

arch/x86/events/intel/core.c

+0 −3
Original line number Diff line number Diff line
@@ -3868,9 +3868,6 @@ static int intel_pmu_hw_config(struct perf_event *event) 
		}

		if (x86_pmu.pebs_aliases)

			x86_pmu.pebs_aliases(event);



		if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN)

			event->attr.sample_type |= __PERF_SAMPLE_CALLCHAIN_EARLY;

	}



	if (needs_branch_stack(event)) {

include/uapi/linux/perf_event.h

+0 −2
Original line number Diff line number Diff line
@@ -164,8 +164,6 @@ enum perf_event_sample_format { 
	PERF_SAMPLE_WEIGHT_STRUCT		= 1U << 24,



	PERF_SAMPLE_MAX = 1U << 25,		/* non-ABI */



	__PERF_SAMPLE_CALLCHAIN_EARLY		= 1ULL << 63, /* non-ABI; internal use */

};



#define PERF_SAMPLE_WEIGHT_TYPE	(PERF_SAMPLE_WEIGHT | PERF_SAMPLE_WEIGHT_STRUCT)