From: Dapeng Mi <dapeng1.mi@linux.intel.com>
Date: Tue, 16 Dec 2025 01:39:49 +0000 (+0800)
Subject: perf Documentation: Correct branch stack sampling call-stack option
X-Git-Tag: v7.0-rc1~16^2~216
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1f9dc67238e716a4cc0ffd7014f501775d5f3ed;p=thirdparty%2Flinux.git

perf Documentation: Correct branch stack sampling call-stack option

The correct call-stack option for branch stack sampling should be "stack"
instead of "call_stack". Correct it.

$perf record -e instructions -j call_stack -- sleep 1
unknown branch filter call_stack, check man page

 Usage: perf record [<options>] [<command>]
    or: perf record [<options>] -- <command> [<options>]

    -j, --branch-filter <branch filter mask>
                          branch stack filter modes

Fixes: 955f6def5590ce6c ("perf record: Add remaining branch filters: "no_cycles", "no_flags" & "hw_index"")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Xudong Hao <xudong.hao@intel.com>
Cc: Zide Chen <zide.chen@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index c402e74172f6..178f483140ed 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -455,7 +455,7 @@ following filters are defined:
 	- no_tx: only when the target is not in a hardware transaction
 	- abort_tx: only when the target is a hardware transaction abort
 	- cond: conditional branches
-	- call_stack: save call stack
+	- stack: save call stack
 	- no_flags: don't save branch flags e.g prediction, misprediction etc
 	- no_cycles: don't save branch cycles
 	- hw_index: save branch hardware index