[U-Boot] [PATCH 1/2] drivers, usb, gadget: fix compiler warnings for at91_udc.c

[Lukasz Majewski <lukma@denx.de>]

Hi Heiko,

> Hello Lukasz,
> 
> Am 23.06.2017 um 14:50 schrieb Lukasz Majewski:
> > Hi Heiko,
> >
> >> fix warnings:
> >> drivers/usb/gadget/at91_udc.c:1344:12: warning:
> >> 'at91rm9200_udc_init' defined but not used [-Wunused-function]
> >> drivers/usb/gadget/at91_udc.c:1379:13: warning:
> >> 'at91rm9200_udc_pullup' defined but not used [-Wunused-function]
> >> drivers/usb/gadget/at91_udc.c:1476:12: warning:
> >> 'at91sam9263_udc_init' defined but not used [-Wunused-function]
> >>
> >> Signed-off-by: Heiko Schocher <hs@denx.de>
> >> ---
> >>
> >>   drivers/usb/gadget/at91_udc.c | 30 +++---------------------------
> >>   1 file changed, 3 insertions(+), 27 deletions(-)
> >>
> >> diff --git a/drivers/usb/gadget/at91_udc.c
> >> b/drivers/usb/gadget/at91_udc.c index 01a5907..85bfbf5 100644
> >> --- a/drivers/usb/gadget/at91_udc.c
> >> +++ b/drivers/usb/gadget/at91_udc.c
> >> @@ -1341,7 +1341,7 @@ static int at91_stop(struct usb_gadget
> >> *gadget)
> >>
> >>   /*-------------------------------------------------------------------------*/
> >>
> >> -static int at91rm9200_udc_init(struct at91_udc *udc)
> >> +static __maybe_unused int at91rm9200_udc_init(struct at91_udc
> >> *udc) {
> >>   	struct at91_ep *ep;
> >>   	int ret;
> >> @@ -1376,7 +1376,8 @@ static int at91rm9200_udc_init(struct
> >> at91_udc *udc) return 0;
> >>   }
> >>
> >> -static void at91rm9200_udc_pullup(struct at91_udc *udc, int is_on)
> >> +static __maybe_unused
> >> +void at91rm9200_udc_pullup(struct at91_udc *udc, int is_on)
> >>   {
> >>   	int active = !udc->board.pullup_active_low;
> >>
> >> @@ -1473,31 +1474,6 @@ static const struct at91_udc_caps
> >> at91sam9261_udc_caps = { };
> >>   #endif
> >>
> >> -static int at91sam9263_udc_init(struct at91_udc *udc)
> >
> > I'm a bit puzzled...
> >
> > For the at91rm9200 related boards it is enough to add __maybe_unused
> > and leave the unused function in the source code.
> >
> > Hence, I'm wondering why do you remove the function for at91sam9263?
> >
> > Shouldn't all be removed or have added __maybe_unused ?
> 
> Hmm.. No, it seems there are no users for the at91sam9263_udc_init()
> 
> pollux:u-boot hs [master] $ grep -lr at91sam9263_udc_init .
> ./drivers/usb/gadget/at91_udc.c
> pollux:u-boot hs [master] $
> 
> And in ./drivers/usb/gadget/at91_udc.c it is only defined, but not
> used...

Aaaa...... Ok I see.

Review-by: Lukasz Majewski <lukma@denx.de>

> 
> bye,
> Heiko
> >
> >> -{
> >> -	struct at91_ep *ep;
> >> -	int i;
> >> -
> >> -	for (i = 0; i < NUM_ENDPOINTS; i++) {
> >> -		ep = &udc->ep[i];
> >> -
> >> -		switch (i) {
> >> -		case 0:
> >> -		case 1:
> >> -		case 2:
> >> -		case 3:
> >> -			ep->maxpacket = 64;
> >> -			break;
> >> -		case 4:
> >> -		case 5:
> >> -			ep->maxpacket = 256;
> >> -			break;
> >> -		}
> >> -	}
> >> -
> >> -	return 0;
> >> -}
> >> -
> >>   int usb_gadget_handle_interrupts(int index)
> >>   {
> >>   	struct at91_udc *udc = controller;
> >
> >
> >
> >
> > Best regards,
> >
> > Lukasz Majewski
> >
> > --
> >
> > DENX Software Engineering GmbH,      Managing Director: Wolfgang
> > Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell,
> > Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email:
> > wd at denx.de
> >
> 




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de