From: Alex Deucher <alexdeucher@gmail.com>
To: Nathan Chancellor <nathan@kernel.org>
Cc: "Harry Wentland" <harry.wentland@amd.com>,
"Leo Li" <sunpeng.li@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"amd-gfx list" <amd-gfx@lists.freedesktop.org>,
"Maling list - DRI developers" <dri-devel@lists.freedesktop.org>,
LKML <linux-kernel@vger.kernel.org>,
llvm@lists.linux.dev
Subject: Re: [PATCH] drm/amd: Return NULL instead of false in dcn201_acquire_idle_pipe_for_layer()
Date: Thu, 30 Sep 2021 13:09:49 -0400 [thread overview]
Message-ID: <CADnq5_PBMGdUG8VMUQ2UOSdd9qXbZ7QoyGH2RTgUPnTjdzKqFA@mail.gmail.com> (raw)
In-Reply-To: <20210930162302.2344542-1-nathan@kernel.org>
Applied. Thanks!
Alex
On Thu, Sep 30, 2021 at 12:23 PM Nathan Chancellor <nathan@kernel.org> wrote:
>
> Clang warns:
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn201/dcn201_resource.c:1017:10: error: expression which evaluates to zero treated as a null pointer constant of type 'struct pipe_ctx *' [-Werror,-Wnon-literal-null-conversion]
> return false;
> ^~~~~
> 1 error generated.
>
> Use NULL instead of false since the function is returning a pointer
> rather than a boolean.
>
> Fixes: ff7e396f822f ("drm/amd/display: add cyan_skillfish display support")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1470
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
> drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> index aec276e1db65..8523a048e6f6 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> @@ -1014,7 +1014,7 @@ static struct pipe_ctx *dcn201_acquire_idle_pipe_for_layer(
> ASSERT(0);
>
> if (!idle_pipe)
> - return false;
> + return NULL;
>
> idle_pipe->stream = head_pipe->stream;
> idle_pipe->stream_res.tg = head_pipe->stream_res.tg;
>
> base-commit: b47b99e30cca8906753c83205e8c6179045dd725
> --
> 2.33.0.591.gddb1055343
>
next prev parent reply other threads:[~2021-09-30 17:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 16:23 [PATCH] drm/amd: Return NULL instead of false in dcn201_acquire_idle_pipe_for_layer() Nathan Chancellor
2021-09-30 17:09 ` Alex Deucher [this message]
2021-09-30 17:22 ` Nick Desaulniers
2021-09-30 17:22 ` Nick Desaulniers
2021-09-30 17:22 ` Nick Desaulniers
2021-09-30 17:59 ` Alex Deucher
2021-09-30 17:59 ` Alex Deucher
2021-09-30 17:59 ` Alex Deucher
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