linux-kernel - Re: [PATCH] drm/amd/display: change several dcn20 variables storage-class-specifier to static

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Message-ID: <CADnq5_P6hD8o+fHTjy3mRkSV1b6rGQcOkz_7YkNqmOt_zudvTA@mail.gmail.com>
Date:   Mon, 6 Mar 2023 14:40:21 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Tom Rix <trix@...hat.com>
Cc:     harry.wentland@....com, sunpeng.li@....com,
        Rodrigo.Siqueira@....com, alexander.deucher@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
        daniel@...ll.ch, alvin.lee2@....com, javierm@...hat.com,
        hamza.mahfooz@....com, eric.bernstein@....com, roman.li@....com,
        wenjing.liu@....com, praful.swarnakar@....com, tzimmermann@...e.de,
        jiapeng.chong@...ux.alibaba.com, Pavle.Kotarac@....com,
        hansen.dsouza@....com, Charlene.Liu@....com, Josip.Pavic@....com,
        Jun.Lei@....com, chiahsuan.chung@....com,
        dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amd/display: change several dcn20 variables
 storage-class-specifier to static

Applied.  Thanks!

Alex

On Sat, Mar 4, 2023 at 11:22 AM Tom Rix <trix@...hat.com> wrote:
>
> smatch reports these similar problems in dcn20
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_dsc.c:53:24:
>   warning: symbol 'dcn20_dsc_funcs' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_dwb.c:304:25:
>   warning: symbol 'dcn20_dwbc_funcs' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_mmhubbub.c:300:28:
>   warning: symbol 'dcn20_mmhubbub_funcs' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_mpc.c:545:24:
>   warning: symbol 'dcn20_mpc_funcs' was not declared. Should it be static?
>
> All of these are only used in their definition file, so they should be static
>
> Signed-off-by: Tom Rix <trix@...hat.com>
> ---
>  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c      | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c      | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c      | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
> index 42344aec60d6..5bd698cd6d20 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
> @@ -50,7 +50,7 @@ static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe);
>  static void dsc2_disable(struct display_stream_compressor *dsc);
>  static void dsc2_disconnect(struct display_stream_compressor *dsc);
>
> -const struct dsc_funcs dcn20_dsc_funcs = {
> +static const struct dsc_funcs dcn20_dsc_funcs = {
>         .dsc_get_enc_caps = dsc2_get_enc_caps,
>         .dsc_read_state = dsc2_read_state,
>         .dsc_validate_stream = dsc2_validate_stream,
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c
> index f1490e97b6ce..f8667be57046 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c
> @@ -301,7 +301,7 @@ void dwb2_set_scaler(struct dwbc *dwbc, struct dc_dwb_params *params)
>
>  }
>
> -const struct dwbc_funcs dcn20_dwbc_funcs = {
> +static const struct dwbc_funcs dcn20_dwbc_funcs = {
>         .get_caps               = dwb2_get_caps,
>         .enable                 = dwb2_enable,
>         .disable                = dwb2_disable,
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c
> index ccd91792991b..259a98e4ee2c 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mmhubbub.c
> @@ -297,7 +297,7 @@ void mcifwb2_dump_frame(struct mcif_wb *mcif_wb,
>         dump_info->size         = dest_height * (mcif_params->luma_pitch + mcif_params->chroma_pitch);
>  }
>
> -const struct mcif_wb_funcs dcn20_mmhubbub_funcs = {
> +static const struct mcif_wb_funcs dcn20_mmhubbub_funcs = {
>         .enable_mcif            = mmhubbub2_enable_mcif,
>         .disable_mcif           = mmhubbub2_disable_mcif,
>         .config_mcif_buf        = mmhubbub2_config_mcif_buf,
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
> index 116f67a0b989..5da6e44f284a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
> @@ -542,7 +542,7 @@ static struct mpcc *mpc2_get_mpcc_for_dpp(struct mpc_tree *tree, int dpp_id)
>         return NULL;
>  }
>
> -const struct mpc_funcs dcn20_mpc_funcs = {
> +static const struct mpc_funcs dcn20_mpc_funcs = {
>         .read_mpcc_state = mpc1_read_mpcc_state,
>         .insert_plane = mpc1_insert_plane,
>         .remove_mpcc = mpc1_remove_mpcc,
> --
> 2.27.0
>