linux-kernel - Re: [PATCH -next] drm/amdgpu: remove set but not used variables 'ret'

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Date:   Sun, 23 Jun 2019 08:10:21 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Dan Carpenter <dan.carpenter@...cle.com>
cc:     Mao Wenan <maowenan@...wei.com>, airlied@...ux.ie, daniel@...ll.ch,
        alexander.deucher@....com, christian.koenig@....com,
        David1.Zhou@....com, kernel-janitors@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] drm/amdgpu: remove set but not used variables
 'ret'



On Sun, 23 Jun 2019, Dan Carpenter wrote:

> On Sat, Jun 22, 2019 at 01:43:19PM +0300, Dan Carpenter wrote:
> > On Sat, Jun 22, 2019 at 11:03:14AM +0800, Mao Wenan wrote:
> > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> > > index 0e6dba9..0bf4dd9 100644
> > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> > > @@ -246,12 +246,10 @@ static int init_pmu_by_type(struct amdgpu_device *adev,
> > >  /* init amdgpu_pmu */
> > >  int amdgpu_pmu_init(struct amdgpu_device *adev)
> > >  {
> > > -	int ret = 0;
> > > -
> > >  	switch (adev->asic_type) {
> > >  	case CHIP_VEGA20:
> > >  		/* init df */
> > > -		ret = init_pmu_by_type(adev, df_v3_6_attr_groups,
> > > +		init_pmu_by_type(adev, df_v3_6_attr_groups,
> > >  				       "DF", "amdgpu_df", PERF_TYPE_AMDGPU_DF,
> > >  				       DF_V3_6_MAX_COUNTERS);
> >
> >
> > You're resending this for other reasons, but don't forget to update the
> > indenting on the arguments so they still line up with the '('.
> >
>
> Sorry, I was unclear.  If you pull the init_pmu_by_type( back 6
> characters then you also need to pull the "DF" back 6 characters.
>
> 		init_pmu_by_type(adev, df_v3_6_attr_groups, "DF", "amdgpu_df",
> 				 PERF_TYPE_AMDGPU_DF, DF_V3_6_MAX_COUNTERS);
>
> You can actually fit it into two lines afterwards.

My suggestion was to keep the ret = instead of discarding the indication
of failure, so I think that this is not relevant.

julia