Re: [PATCH] MIPS: Lantiq: switch vmmc to use gpiod API

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On September 27, 2022 12:49:53 AM PDT, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> wrote:
>On Mon, Sep 26, 2022 at 09:56:08PM -0700, Dmitry Torokhov wrote:
>> Hi Thomas,
>> 
>> On Sat, Sep 24, 2022 at 12:46:12PM +0200, Thomas Bogendoerfer wrote:
>> > On Thu, Sep 22, 2022 at 09:55:40PM -0700, Dmitry Torokhov wrote:
>> > > This switches vmmc to use gpiod API instead of OF-specific legacy gpio
>> > > API that we want to stop exporting from gpiolib.
>> > > 
>> > > Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
>> > > ---
>> > >  arch/mips/lantiq/xway/vmmc.c | 22 +++++++++++++---------
>> > >  1 file changed, 13 insertions(+), 9 deletions(-)
>> > 
>> > applied to mips-next.
>> 
>> My apologies, I screwed up. I thought this patch passed 0day before I
>> sent it to you, but apparently it has not.
>> 
>> Here is a fixup (actually cross-compiled this time), or I can send a v2
>> incorporating it into the original change.
>
>I need a fixup, but this one still fails in my build:
>
>/local/tbogendoerfer/korg/linux/arch/mips/lantiq/xway/vmmc.c: In function ‘vmmc_probe’:
>/local/tbogendoerfer/korg/linux/arch/mips/lantiq/xway/vmmc.c:43:5: error: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long int’ [-Werror=format=]
>     "failed to request GPIO idx %d: %d\n",
>     ^

I see, I did not realize PTR_ERR() is actually long. I guess I can introduce a temp variable and use PTR_ERR_OR_ZERO(), but there are a lot of places in the kernel that use %d and PTR_ERR(). I wonder why we can't define PTR_ERR() as (int)(long)ptr or something.

What compiler/version are you using for your builds? 

Thanks.

-- 
Dmitry




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