linux-kernel - Re: [PATCH] drm/amdgpu: remove unnecessary (void*) conversions

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Date:   Mon, 15 May 2023 10:11:39 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     Dan Carpenter <dan.carpenter@...aro.org>
Cc:     Su Hui <suhui@...china.com>, Xinhui.Pan@....com,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Alex Deucher <alexander.deucher@....com>,
        christian.koenig@....com
Subject: Re: [PATCH] drm/amdgpu: remove unnecessary (void*) conversions

On Mon, May 15, 2023 at 3:17 AM Dan Carpenter <dan.carpenter@...aro.org> wrote:
>
> On Mon, May 15, 2023 at 09:34:28AM +0800, Su Hui wrote:
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> > index f60753f97ac5..c837e0bf2cfc 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> > @@ -1470,7 +1470,7 @@ int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
> >
> >  static int amdgpu_debugfs_test_ib_show(struct seq_file *m, void *unused)
> >  {
> > -     struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
> > +     struct amdgpu_device *adev = m->private;
> >       struct drm_device *dev = adev_to_drm(adev);
> >       int r = 0, i;
> >
>
> This declaration block was originally written in reverse Christmas tree
> order:
>
>         long long long variable name;
>         medium length name;
>         short name;
>
> So you probably want to change the order now that the lengths have
> changed.  Same in the other places as well.

I don't think it's possible due to the variable dependencies unless
you separate the declarations and assignments which doesn't seem like
a net win to me.

Alex

>
> regards,
> dan carpenter
>