Re: [PATCH] USB: musb: mark expected switch fall-through

From: Greg Kroah-Hartman
Date: Wed Feb 13 2019 - 04:08:09 EST


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 âmusb_advance_scheduleâ:
> > 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@xxxxxxxxxxxxxx>
>
> 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@xxxxxx>

I'll take it directly, thanks.

greg k-h