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perf: Kill __PERF_SAMPLE_CALLCHAIN_EARLY

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

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908214104.3851807-3-namhyung@kernel.org
This commit is contained in:
Namhyung Kim 2022-09-08 14:41:04 -07:00 committed by Peter Zijlstra
parent 16817ad7e8
commit b4e12b2d70
3 changed files with 0 additions and 15 deletions
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10
arch/x86/events/amd/ibs.c
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@ -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;
}

3
arch/x86/events/intel/core.c
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@ -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)) {

2
include/uapi/linux/perf_event.h
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@ -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)