* [PATCH] USB: musb: mark expected switch fall-through
@ 2019-02-12 19:23 Gustavo A. R. Silva
2019-02-12 19:47 ` Bin Liu
0 siblings, 1 reply; 4+ messages in thread
From: Gustavo A. R. Silva @ 2019-02-12 19:23 UTC (permalink / raw)
To: Bin Liu, Greg Kroah-Hartman
Cc: linux-usb, linux-kernel, Gustavo A. R. Silva, Kees Cook
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/usb/musb/musb_host.c: In function ‘musb_advance_schedule’:
drivers/usb/musb/musb_host.c:374:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (qh->mux == 1) {
^
drivers/usb/musb/musb_host.c:383:3: note: here
case USB_ENDPOINT_XFER_ISOC:
^~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/usb/musb/musb_host.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index b59ce9ad14ce..0566d5b6252e 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -378,7 +378,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
qh = first_qh(head);
break;
}
- /* else: fall through */
+ /* fall through */
case USB_ENDPOINT_XFER_ISOC:
case USB_ENDPOINT_XFER_INT:
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] USB: musb: mark expected switch fall-through
2019-02-12 19:23 [PATCH] USB: musb: mark expected switch fall-through Gustavo A. R. Silva
@ 2019-02-12 19:47 ` Bin Liu
2019-02-13 9:08 ` Greg Kroah-Hartman
0 siblings, 1 reply; 4+ messages in thread
From: Bin Liu @ 2019-02-12 19:47 UTC (permalink / raw)
To: Gustavo A. R. Silva
Cc: Greg Kroah-Hartman, linux-usb, linux-kernel, Kees Cook
Hi Greg,
On Tue, Feb 12, 2019 at 01:23:57PM -0600, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
>
> This patch fixes the following warning:
>
> drivers/usb/musb/musb_host.c: In function ‘musb_advance_schedule’:
> drivers/usb/musb/musb_host.c:374:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (qh->mux == 1) {
> ^
> drivers/usb/musb/musb_host.c:383:3: note: here
> case USB_ENDPOINT_XFER_ISOC:
> ^~~~
>
> Warning level 3 was used: -Wimplicit-fallthrough=3
>
> Notice that, in this particular case, the code comment is modified
> in accordance with what GCC is expecting to find.
>
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
I've closed my musb tree for v5.1-rc1, if you want to directly pick this
patch, here is my Acked-by, or I will take it for v5.2-rc1.
Acked-by: Bin Liu <b-liu@ti.com>
> ---
> drivers/usb/musb/musb_host.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
> index b59ce9ad14ce..0566d5b6252e 100644
> --- a/drivers/usb/musb/musb_host.c
> +++ b/drivers/usb/musb/musb_host.c
> @@ -378,7 +378,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
> qh = first_qh(head);
> break;
> }
> - /* else: fall through */
> + /* fall through */
>
> case USB_ENDPOINT_XFER_ISOC:
> case USB_ENDPOINT_XFER_INT:
> --
> 2.20.1
Regards,
-Bin.
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] USB: musb: mark expected switch fall-through
2019-02-12 19:47 ` Bin Liu
@ 2019-02-13 9:08 ` Greg Kroah-Hartman
2019-02-13 18:15 ` Gustavo A. R. Silva
0 siblings, 1 reply; 4+ messages in thread
From: Greg Kroah-Hartman @ 2019-02-13 9:08 UTC (permalink / raw)
To: Bin Liu, Gustavo A. R. Silva, linux-usb, linux-kernel, Kees Cook
On Tue, Feb 12, 2019 at 01:47:54PM -0600, Bin Liu wrote:
> Hi Greg,
>
> On Tue, Feb 12, 2019 at 01:23:57PM -0600, Gustavo A. R. Silva wrote:
> > In preparation to enabling -Wimplicit-fallthrough, mark switch
> > cases where we are expecting to fall through.
> >
> > This patch fixes the following warning:
> >
> > drivers/usb/musb/musb_host.c: In function ‘musb_advance_schedule’:
> > drivers/usb/musb/musb_host.c:374:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > if (qh->mux == 1) {
> > ^
> > drivers/usb/musb/musb_host.c:383:3: note: here
> > case USB_ENDPOINT_XFER_ISOC:
> > ^~~~
> >
> > Warning level 3 was used: -Wimplicit-fallthrough=3
> >
> > Notice that, in this particular case, the code comment is modified
> > in accordance with what GCC is expecting to find.
> >
> > This patch is part of the ongoing efforts to enable
> > -Wimplicit-fallthrough.
> >
> > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
>
> I've closed my musb tree for v5.1-rc1, if you want to directly pick this
> patch, here is my Acked-by, or I will take it for v5.2-rc1.
>
> Acked-by: Bin Liu <b-liu@ti.com>
I'll take it directly, thanks.
greg k-h
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] USB: musb: mark expected switch fall-through
2019-02-13 9:08 ` Greg Kroah-Hartman
@ 2019-02-13 18:15 ` Gustavo A. R. Silva
0 siblings, 0 replies; 4+ messages in thread
From: Gustavo A. R. Silva @ 2019-02-13 18:15 UTC (permalink / raw)
To: Greg Kroah-Hartman, Bin Liu, linux-usb, linux-kernel, Kees Cook
On 2/13/19 3:08 AM, Greg Kroah-Hartman wrote:
> On Tue, Feb 12, 2019 at 01:47:54PM -0600, Bin Liu wrote:
>> Hi Greg,
>>
>> On Tue, Feb 12, 2019 at 01:23:57PM -0600, Gustavo A. R. Silva wrote:
>>> In preparation to enabling -Wimplicit-fallthrough, mark switch
>>> cases where we are expecting to fall through.
>>>
>>> This patch fixes the following warning:
>>>
>>> drivers/usb/musb/musb_host.c: In function ‘musb_advance_schedule’:
>>> drivers/usb/musb/musb_host.c:374:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
>>> if (qh->mux == 1) {
>>> ^
>>> drivers/usb/musb/musb_host.c:383:3: note: here
>>> case USB_ENDPOINT_XFER_ISOC:
>>> ^~~~
>>>
>>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>>
>>> Notice that, in this particular case, the code comment is modified
>>> in accordance with what GCC is expecting to find.
>>>
>>> This patch is part of the ongoing efforts to enable
>>> -Wimplicit-fallthrough.
>>>
>>> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
>>
>> I've closed my musb tree for v5.1-rc1, if you want to directly pick this
>> patch, here is my Acked-by, or I will take it for v5.2-rc1.
>>
>> Acked-by: Bin Liu <b-liu@ti.com>
>
> I'll take it directly, thanks.
>
Thank you both, Bin and Greg.
--
Gustavo
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-02-12 19:23 [PATCH] USB: musb: mark expected switch fall-through Gustavo A. R. Silva
2019-02-12 19:47 ` Bin Liu
2019-02-13 9:08 ` Greg Kroah-Hartman
2019-02-13 18:15 ` Gustavo A. R. Silva
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