From: Fushuai Wang <wangfushuai@baidu.com>
To: <sshegde@linux.ibm.com>
Cc: <christophe.leroy@csgroup.eu>, <frederic@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,
<wangfushuai@baidu.com>
Subject: Re: [PATCH] soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu()
Date: Tue, 12 Aug 2025 12:56:42 +0800 [thread overview]
Message-ID: <20250812045642.54968-1-wangfushuai@baidu.com> (raw)
In-Reply-To: <f3ecce9f-22cf-48e2-843e-63f08a577e69@linux.ibm.com>
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>> 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@baidu.com>
>> ---
>> drivers/soc/fsl/qbman/qman_test_stash.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/fsl/qbman/qman_test_stash.c b/drivers/soc/fsl/qbman/qman_test_stash.c
>> index f4d3c2146f4f..6f7597950aa3 100644
>> --- a/drivers/soc/fsl/qbman/qman_test_stash.c
>> +++ b/drivers/soc/fsl/qbman/qman_test_stash.c
>> @@ -103,7 +103,7 @@ static int on_all_cpus(int (*fn)(void))
>> {
>> int cpu;
>>
>> - for_each_cpu(cpu, cpu_online_mask) {
>> + for_each_online_cpu(cpu) {
>> struct bstrap bstrap = {
>> .fn = fn,
>> .started = ATOMIC_INIT(0)
>
> Yes. This change makes sense given that for_each_online_cpu expands into the same.
>
> Why not do for the remaining ones too?
I’m working on updating the remaining instances as well.
To keep the commits clear, I’m sending separate patches for each file/subsystem.
Regards,
Wang.
> linux_tip$ grep -Rw "for_each_cpu" * | grep cpu_online_mask
> arch/riscv/kernel/unaligned_access_speed.c: for_each_cpu(cpu, cpu_online_mask) {
> arch/riscv/kernel/unaligned_access_speed.c: for_each_cpu(cpu, cpu_online_mask) {
> drivers/soc/fsl/qbman/qman_test_stash.c: for_each_cpu(cpu, cpu_online_mask) { ** current patch addresses this.
> drivers/infiniband/hw/hfi1/sdma.c: for_each_cpu(cpu, cpu_online_mask) {
> drivers/cpuidle/cpuidle-tegra.c: for_each_cpu(lcpu, cpu_online_mask) {
> include/rv/da_monitor.h: for_each_cpu(cpu, cpu_online_mask) {
> kernel/trace/trace_osnoise.c: for_each_cpu(cpu, cpu_online_mask) {
> kernel/trace/trace_osnoise.c: for_each_cpu(cpu, cpu_online_mask) {
>
>
> Rest everyone seems to have moved.
> linux_tip$ grep -Rw "for_each_online_cpu" * | wc
> 416 1141 23047
prev parent reply other threads:[~2025-08-12 5:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-11 6:52 [PATCH] soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu() Fushuai Wang
2025-08-11 16:46 ` Shrikanth Hegde
2025-08-12 4:56 ` Fushuai Wang [this message]
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