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

[Heiko Schocher]

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 at 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...

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
>

-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany