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

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On Tue, Sep 27, 2022 at 08:29:42AM -0700, Dmitry Torokhov wrote:
> On Tue, Sep 27, 2022 at 10:29:46AM +0200, Thomas Bogendoerfer wrote:
> > On Tue, Sep 27, 2022 at 01:08:35AM -0700, Dmitry Torokhov wrote:
> > > 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? 
> > 
> > it's rather old:
> > 
> > gcc version 6.1.1 20160621 (Red Hat Cross 6.1.1-2) (GCC) 
> 
> OK, I tried the below with gcc 12.1.0 cross-compiler, hopefully this
> does not trip on 6.1.1.

works with 6.1.1 as well. Applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]



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