linux-kernel - [PATCH] riscv: Use for_each_online_cpu() instead of for_each

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Message-ID: <20250811063352.1770-1-wangfushuai@baidu.com>
Date: Mon, 11 Aug 2025 14:33:52 +0800
From: Fushuai Wang <wangfushuai@...du.com>
To: <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
CC: <paul.walmsley@...ive.com>, <palmer@...belt.com>, <aou@...s.berkeley.edu>,
	<alex@...ti.fr>, <ajones@...tanamicro.com>, <cleger@...osinc.com>,
	<charlie@...osinc.com>, <jesse@...osinc.com>, <evan@...osinc.com>, Fushuai
 Wang <wangfushuai@...du.com>
Subject: [PATCH] riscv: Use for_each_online_cpu() instead of for_each_cpu()

Replace the opencoded for_each_cpu(cpu, cpu_online_mask) loop with the
more readable and equivalent for_each_online_cpu(cpu) macro.

Signed-off-by: Fushuai Wang <wangfushuai@...du.com>
---
 arch/riscv/kernel/unaligned_access_speed.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/unaligned_access_speed.c b/arch/riscv/kernel/unaligned_access_speed.c
index ae2068425fbc..5e11b1bd9b2a 100644
--- a/arch/riscv/kernel/unaligned_access_speed.c
+++ b/arch/riscv/kernel/unaligned_access_speed.c
@@ -150,7 +150,7 @@ static void __init check_unaligned_access_speed_all_cpus(void)
 	 * Allocate separate buffers for each CPU so there's no fighting over
 	 * cache lines.
 	 */
-	for_each_cpu(cpu, cpu_online_mask) {
+	for_each_online_cpu(cpu) {
 		bufs[cpu] = alloc_pages(GFP_KERNEL, MISALIGNED_BUFFER_ORDER);
 		if (!bufs[cpu]) {
 			pr_warn("Allocation failure, not measuring misaligned performance\n");
@@ -165,7 +165,7 @@ static void __init check_unaligned_access_speed_all_cpus(void)
 	smp_call_on_cpu(0, check_unaligned_access, bufs[0], true);
 
 out:
-	for_each_cpu(cpu, cpu_online_mask) {
+	for_each_online_cpu(cpu) {
 		if (bufs[cpu])
 			__free_pages(bufs[cpu], MISALIGNED_BUFFER_ORDER);
 	}
-- 
2.36.1