linux-kernel - [PATCH v2] perf/x86/amd/ibs: Fix comment typo in ibs_op

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Message-ID: <20260113141830.3204114-1-rrrrr4413@gmail.com>
Date: Tue, 13 Jan 2026 22:18:30 +0800
From: rrrrr4413@...il.com
To: Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...nel.org>
Cc: x86@...nel.org,
	linux-kernel@...r.kernel.org,
	hpa@...or.com,
	Yen-Hsiang Hsu <rrrrr4413@...il.com>
Subject: [PATCH v2] perf/x86/amd/ibs: Fix comment typo in ibs_op_data

The comment for tag_to_ret_ctr in ibs_op_data says "15-31"
but it should be "16-31".

Fix the misleading comment. No functional changes.

Signed-off-by: Yen-Hsiang Hsu <rrrrr4413@...il.com>
Reviewed-by: Borislav Petkov (AMD) <bp@...en8.de>
---
v1 -> v2
I took Borislav's advice to fix commit message.

v1
Link: https://lore.kernel.org/lkml/20260113125004.3173384-1-rrrrr4413@gmail.com/

 arch/x86/include/asm/amd/ibs.h       | 2 +-
 tools/arch/x86/include/asm/amd/ibs.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/amd/ibs.h b/arch/x86/include/asm/amd/ibs.h
index 3ee5903982c2..7d44881d1a28 100644
--- a/arch/x86/include/asm/amd/ibs.h
+++ b/arch/x86/include/asm/amd/ibs.h
@@ -77,7 +77,7 @@ union ibs_op_data {
 	__u64 val;
 	struct {
 		__u64	comp_to_ret_ctr:16,	/* 0-15: op completion to retire count */
-			tag_to_ret_ctr:16,	/* 15-31: op tag to retire count */
+			tag_to_ret_ctr:16,	/* 16-31: op tag to retire count */
 			reserved1:2,		/* 32-33: reserved */
 			op_return:1,		/* 34: return op */
 			op_brn_taken:1,		/* 35: taken branch op */
diff --git a/tools/arch/x86/include/asm/amd/ibs.h b/tools/arch/x86/include/asm/amd/ibs.h
index cbce54fec7b9..25c00000f698 100644
--- a/tools/arch/x86/include/asm/amd/ibs.h
+++ b/tools/arch/x86/include/asm/amd/ibs.h
@@ -77,7 +77,7 @@ union ibs_op_data {
 	__u64 val;
 	struct {
 		__u64	comp_to_ret_ctr:16,	/* 0-15: op completion to retire count */
-			tag_to_ret_ctr:16,	/* 15-31: op tag to retire count */
+			tag_to_ret_ctr:16,	/* 16-31: op tag to retire count */
 			reserved1:2,		/* 32-33: reserved */
 			op_return:1,		/* 34: return op */
 			op_brn_taken:1,		/* 35: taken branch op */
-- 
2.52.0