Re: [PATCH] drm/amd/powerplay: fix compile error with ARCH=arc

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On Mon, Jun 29, 2020 at 11:54 PM Quan, Evan <Evan.Quan@xxxxxxx> wrote:
>
> [AMD Official Use Only - Internal Distribution Only]
>
> That's because pr_warn/err/info are forbidden to use in power routines.
>
> /*
>  * DO NOT use these for err/warn/info/debug messages.
>  * Use dev_err, dev_warn, dev_info and dev_dbg instead.
>  * They are more MGPU friendly.
>  */
> #undef pr_err
> #undef pr_warn
> #undef pr_info
> #undef pr_debug
>
Ah, right.  Patch is:
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>


> BR
> Evan
> -----Original Message-----
> From: Alex Deucher <alexdeucher@xxxxxxxxx>
> Sent: Tuesday, June 30, 2020 12:25 AM
> To: Quan, Evan <Evan.Quan@xxxxxxx>
> Cc: amd-gfx list <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; kernel test robot <lkp@xxxxxxxxx>
> Subject: Re: [PATCH] drm/amd/powerplay: fix compile error with ARCH=arc
>
> On Sun, Jun 28, 2020 at 7:19 AM Evan Quan <evan.quan@xxxxxxx> wrote:
> >
> > Fix the compile error below:
> > drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c: In function 'smu_v11_0_init_microcode':
> > >> arch/arc/include/asm/bug.h:22:2: error: implicit declaration of
> > >> function 'pr_warn'; did you mean 'pci_warn'?
> > >> [-Werror=implicit-function-declaration]
> >       22 |  pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
> >          |  ^~~~~~~
> > drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:176:3: note: in expansion of macro 'BUG'
> >      176 |   BUG();
> >
> > Change-Id: I4e969082c41f8a8c91f1b0d19eb853eb0a2e0c0d
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
>
> I think this is probably a missing include.  We use BUG() elsewhere in the driver with no problems.
>
> Alex
>
> > ---
> >  drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> > b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> > index 677f8adb920c..48e15885e9c3 100644
> > --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> > +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> > @@ -173,7 +173,8 @@ int smu_v11_0_init_microcode(struct smu_context *smu)
> >                 chip_name = "sienna_cichlid";
> >                 break;
> >         default:
> > -               BUG();
> > +               dev_err(adev->dev, "Unsupported ASIC type %d\n", adev->asic_type);
> > +               return -EINVAL;
> >         }
> >
> >         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_smc.bin",
> > chip_name);
> > --
> > 2.27.0
> >
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