diff mbox series

[3/3] perf: Kill __PERF_SAMPLE_CALLCHAIN_EARLY

Message ID 20220908214104.3851807-3-namhyung@kernel.org (mailing list archive)
State Not Applicable
Delegated to: BPF
Headers show
Series [1/3] perf: Use sample_flags for callchain | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR fail PR summary
netdev/tree_selection success Not a local patch
bpf/vmtest-bpf-next-VM_Test-6 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-1 pending Logs for build for s390x with gcc
bpf/vmtest-bpf-next-VM_Test-4 success Logs for llvm-toolchain
bpf/vmtest-bpf-next-VM_Test-5 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-2 fail Logs for build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-3 fail Logs for build for x86_64 with llvm-16

Commit Message

Namhyung Kim Sept. 8, 2022, 9:41 p.m. UTC
There's no in-tree user anymore.  Let's get rid of it.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 arch/x86/events/amd/ibs.c       | 10 ----------
 arch/x86/events/intel/core.c    |  3 ---
 include/uapi/linux/perf_event.h |  2 --
 3 files changed, 15 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index dab094166693..ce5720bfb350 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -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;
 }
 
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index ba101c28dcc9..fcd43878a24d 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3846,9 +3846,6 @@  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)) {
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index dca16582885f..e639c74cf5fb 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -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)