From: Dan Carpenter <dan.carpenter@oracle.com>
To: maowenan <maowenan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: David1.Zhou-5C7GfCeVMHo@public.gmane.org,
jonathan.kim-5C7GfCeVMHo@public.gmane.org,
airlied-cv59FeDIM0c@public.gmane.org,
kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
julia.lawall-L2FTfq7BK8M@public.gmane.org,
daniel-/w4YWyX8dFk@public.gmane.org,
alexander.deucher-5C7GfCeVMHo@public.gmane.org,
Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>,
christian.koenig-5C7GfCeVMHo@public.gmane.org
Subject: Re: [PATCH -next v3] drm/amdgpu: return 'ret' immediately if failed in amdgpu_pmu_init
Date: Mon, 24 Jun 2019 09:48:50 +0000 [thread overview]
Message-ID: <20190624094850.GQ18776@kadam> (raw)
In-Reply-To: <4795ba5c-8e41-e1e0-c96a-47fdda3995e3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
On Mon, Jun 24, 2019 at 05:29:33PM +0800, maowenan wrote:
>
>
> On 2019/6/24 16:39, Dan Carpenter wrote:
> > On Mon, Jun 24, 2019 at 11:45:32AM +0800, Mao Wenan wrote:
> >> There is one warning:
> >> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c: In function ‘amdgpu_pmu_init’:
> >> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:249:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
> >> int ret = 0;
> >> ^
> >> amdgpu_pmu_init() is called by amdgpu_device_init() in drivers/gpu/drm/amd/amdgpu/amdgpu_device.c,
> >> which will use the return value. So it should return 'ret' immediately if init_pmu_by_type() failed.
> >> amdgpu_device_init()
> >> r = amdgpu_pmu_init(adev);
> >>
> >> This patch is also to update the indenting on the arguments so they line up with the '('.
> >>
> >> Fixes: 9c7c85f7ea1f ("drm/amdgpu: add pmu counters")
> >>
> >> Signed-off-by: Mao Wenan <maowenan@huawei.com>
> >> ---
> >> v1->v2: change the subject for this patch; change the indenting when it calls init_pmu_by_type; use the value 'ret' in
> >> amdgpu_pmu_init().
> >> v2->v3: change the subject for this patch; return 'ret' immediately if failed to call init_pmu_by_type().
> >>
> >> drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c | 7 +++++--
> >> 1 file changed, 5 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> >> index 0e6dba9..b702322 100644
> >> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> >> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
> >> @@ -252,8 +252,11 @@ int amdgpu_pmu_init(struct amdgpu_device *adev)
> >> case CHIP_VEGA20:
> >> /* init df */
> >> ret = init_pmu_by_type(adev, df_v3_6_attr_groups,
> >> - "DF", "amdgpu_df", PERF_TYPE_AMDGPU_DF,
> >> - DF_V3_6_MAX_COUNTERS);
> >> + "DF", "amdgpu_df",
> >> + PERF_TYPE_AMDGPU_DF,
> >> + DF_V3_6_MAX_COUNTERS);
> >> + if (ret)
> >> + return ret;
> >
> > No no. Sorry, the original indenting was correct and lined up with the
> > '(' character in 'init_pmu_by_type(', that's the way it should be. If
> > we were to remove the "ret = " then we'd have to pull the arguments back
> > as well. I think this fix that Julia suggested is really the right so
> > leave the indenting alone.
> >
>
> > It looks like you've right aligned the arguments. That's not the right
> > way, the original was correct.
> >
> After using 8 character for tab(thanks to Joe), the aligned here is wrong, yes, the original was correct.
>
> so my v4 is only to change ret, don't change the indenting?
>
Yes, please. Sorry for my confusing email earlier.
regards,
dan carpenter
next prev parent reply other threads:[~2019-06-24 9:48 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-15 10:52 [PATCH -next] drm/amdgpu: remove set but not used variable 'ring' YueHaibing
2018-11-15 11:49 ` Huang, Ray
2018-11-15 11:56 ` YueHaibing
2019-02-20 3:31 ` [PATCH -next] drm/amdgpu: remove set but not used variables 'vm, bo' YueHaibing
2019-02-28 2:43 ` Alex Deucher
2019-06-22 2:56 ` [PATCH -next] drm/amdgpu: remove set but not used variables 'ret' Mao Wenan
2019-06-22 6:02 ` Julia Lawall
2019-06-22 7:20 ` maowenan
2019-06-22 10:43 ` Dan Carpenter
2019-06-22 12:58 ` [PATCH -next v2] drm/amdgpu: return 'ret' in amdgpu_pmu_init Mao Wenan
2019-06-22 13:06 ` Julia Lawall
2019-06-22 13:56 ` maowenan
2019-06-22 14:00 ` Julia Lawall
2019-06-24 3:16 ` maowenan
2019-06-22 18:13 ` Joe Perches
2019-06-24 3:41 ` maowenan
2019-06-24 3:46 ` Joe Perches
2019-06-23 6:00 ` [PATCH -next] drm/amdgpu: remove set but not used variables 'ret' Dan Carpenter
2019-06-23 6:10 ` Julia Lawall
2019-06-24 3:45 ` [PATCH -next v3] drm/amdgpu: return 'ret' immediately if failed in amdgpu_pmu_init Mao Wenan
[not found] ` <20190624034532.135201-1-maowenan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2019-06-24 8:39 ` Dan Carpenter
2019-06-24 9:29 ` maowenan
[not found] ` <4795ba5c-8e41-e1e0-c96a-47fdda3995e3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2019-06-24 9:48 ` Dan Carpenter [this message]
2019-06-24 11:23 ` [PATCH -next v4] " Mao Wenan
[not found] ` <20190624112318.149299-1-maowenan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2019-06-24 17:42 ` Kim, Jonathan
2019-06-26 11:35 ` maowenan
2019-07-10 7:31 ` maowenan
2020-07-02 1:55 ` [PATCH -next] drm/amdgpu: remove set but not used variable 'adev' YueHaibing
2020-07-06 16:06 ` Alex Deucher
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