* [PATCH] kernel: time: Return ENXIO instead of ENODEV when call smp_call_function_single fail in clockevents_unbind
@ 2021-12-19 15:29 gchen
2021-12-25 5:21 ` Chen Gang
0 siblings, 1 reply; 2+ messages in thread
From: gchen @ 2021-12-19 15:29 UTC (permalink / raw)
To: tglx; +Cc: linux-kernel, Chen Gang
From: Chen Gang <gchen@itskywalker.com>
smp_call_function_single will return -ENXIO for failure, so ENXIO needs
to be as the default value of cu.res for return instead of ENODEV.
Signed-off-by: Chen Gang <gchen@itskywalker.com>
---
kernel/time/clockevents.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 003ccf338d20..59b83bee03e6 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -416,7 +416,7 @@ static void __clockevents_unbind(void *arg)
*/
static int clockevents_unbind(struct clock_event_device *ced, int cpu)
{
- struct ce_unbind cu = { .ce = ced, .res = -ENODEV };
+ struct ce_unbind cu = { .ce = ced, .res = -ENXIO };
smp_call_function_single(cpu, __clockevents_unbind, &cu, 1);
return cu.res;
--
2.24.0.308.g228f53135a
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] kernel: time: Return ENXIO instead of ENODEV when call smp_call_function_single fail in clockevents_unbind
2021-12-19 15:29 [PATCH] kernel: time: Return ENXIO instead of ENODEV when call smp_call_function_single fail in clockevents_unbind gchen
@ 2021-12-25 5:21 ` Chen Gang
0 siblings, 0 replies; 2+ messages in thread
From: Chen Gang @ 2021-12-25 5:21 UTC (permalink / raw)
To: tglx; +Cc: linux-kernel
Hello:
The original mail was not sent successfully, so I send it again with
another mailbox.
Thanks.
On 12/19/21 11:29 PM, gchen@itskywalker.com wrote:
> From: Chen Gang <gchen@itskywalker.com>
>
> smp_call_function_single will return -ENXIO for failure, so ENXIO needs
> to be as the default value of cu.res for return instead of ENODEV.
>
> Signed-off-by: Chen Gang <gchen@itskywalker.com>
> ---
> kernel/time/clockevents.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
> index 003ccf338d20..59b83bee03e6 100644
> --- a/kernel/time/clockevents.c
> +++ b/kernel/time/clockevents.c
> @@ -416,7 +416,7 @@ static void __clockevents_unbind(void *arg)
> */
> static int clockevents_unbind(struct clock_event_device *ced, int cpu)
> {
> - struct ce_unbind cu = { .ce = ced, .res = -ENODEV };
> + struct ce_unbind cu = { .ce = ced, .res = -ENXIO };
>
> smp_call_function_single(cpu, __clockevents_unbind, &cu, 1);
> return cu.res;
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-12-25 5:40 UTC | newest]
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2021-12-19 15:29 [PATCH] kernel: time: Return ENXIO instead of ENODEV when call smp_call_function_single fail in clockevents_unbind gchen
2021-12-25 5:21 ` Chen Gang
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