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SubjectRe: [PATCH] usb: phy: ab8500-usb: Mark expected switch fall-throughs
On Mon, Jul 29, 2019 at 5:36 PM Kees Cook <keescook@chromium.org> wrote:
>
> On Sun, Jul 28, 2019 at 07:06:31PM -0500, Gustavo A. R. Silva wrote:
> > Mark switch cases where we are expecting to fall through.
> >
> > This patch fixes the following warnings:
> >
> > drivers/usb/phy/phy-ab8500-usb.c: In function 'ab8500_usb_link_status_update':
> > drivers/usb/phy/phy-ab8500-usb.c:424:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDB;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:425:2: note: here
> > case USB_LINK_NOT_CONFIGURED_8500:
> > ^~~~
> > drivers/usb/phy/phy-ab8500-usb.c:440:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDC;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:441:2: note: here
> > case USB_LINK_STD_HOST_NC_8500:
> > ^~~~
> > drivers/usb/phy/phy-ab8500-usb.c:459:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDA;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:460:2: note: here
> > case USB_LINK_HM_IDGND_8500:
> > ^~~~
> > drivers/usb/phy/phy-ab8500-usb.c: In function 'ab8505_usb_link_status_update':
> > drivers/usb/phy/phy-ab8500-usb.c:332:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDB;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:333:2: note: here
> > case USB_LINK_NOT_CONFIGURED_8505:
> > ^~~~
> > drivers/usb/phy/phy-ab8500-usb.c:352:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDC;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:353:2: note: here
> > case USB_LINK_STD_HOST_NC_8505:
> > ^~~~
> > drivers/usb/phy/phy-ab8500-usb.c:370:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > event = UX500_MUSB_RIDA;
> > ~~~~~~^~~~~~~~~~~~~~~~~
> > drivers/usb/phy/phy-ab8500-usb.c:371:2: note: here
> > case USB_LINK_HM_IDGND_8505:
> > ^~~~
> >
> > Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
>
> Reviewed-by: Kees Cook <keescook@chromium.org>

Acked-by: Olof Johansson <olof@lixom.net>

Felipe, Greg, this is still throwing warnings, several months later --
patch was never applied.

Mind picking it up as a fix to get a quieter build?


Thanks,

-Olof

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