linux-kernel - Re: [PATCH] drm/amd/display: change several dcn201 variables storage-class-specifier to static

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Date:   Mon, 6 Mar 2023 14:39:25 -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, jiapeng.chong@...ux.alibaba.com,
        Pavle.Kotarac@....com, oliver.logush@....com, alex.hung@....com,
        aurabindo.pillai@....com, HaoPing.Liu@....com,
        dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amd/display: change several dcn201 variables
 storage-class-specifier to static

Applied.  Thanks!

Alex

On Sat, Mar 4, 2023 at 10:26 AM Tom Rix <trix@...hat.com> wrote:
>
> smatch reports these similar problems in dcn201
> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c:165:22:
>   warning: symbol 'dcn201_funcs' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn201/dcn201_resource.c:77:30:
>   warning: symbol 'dcn201_ip' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn201/dcn201_resource.c:139:37:
>   warning: symbol 'dcn201_soc' was not declared. Should it be static?
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn201/dcn201_mpc.c:79:24:
>   warning: symbol 'dcn201_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>
> ---
>  .../gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c    | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn201/dcn201_mpc.c            | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c       | 4 ++--
>  3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
> index f0577dcd1af6..811720749faf 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c
> @@ -162,7 +162,7 @@ static void dcn201_update_clocks(struct clk_mgr *clk_mgr_base,
>         }
>  }
>
> -struct clk_mgr_funcs dcn201_funcs = {
> +static struct clk_mgr_funcs dcn201_funcs = {
>         .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz,
>         .update_clocks = dcn201_update_clocks,
>         .init_clocks = dcn201_init_clocks,
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_mpc.c
> index 95c4c55f067c..1af03a86ec9b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_mpc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_mpc.c
> @@ -76,7 +76,7 @@ static void mpc201_init_mpcc(struct mpcc *mpcc, int mpcc_inst)
>         mpcc->shared_bottom = false;
>  }
>
> -const struct mpc_funcs dcn201_mpc_funcs = {
> +static const struct mpc_funcs dcn201_mpc_funcs = {
>         .read_mpcc_state = mpc1_read_mpcc_state,
>         .insert_plane = mpc1_insert_plane,
>         .remove_mpcc = mpc1_remove_mpcc,
> 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 407d995bfa99..cd46701398d9 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
> @@ -74,7 +74,7 @@
>  #define MIN_DISP_CLK_KHZ 100000
>  #define MIN_DPP_CLK_KHZ 100000
>
> -struct _vcs_dpi_ip_params_st dcn201_ip = {
> +static struct _vcs_dpi_ip_params_st dcn201_ip = {
>         .gpuvm_enable = 0,
>         .hostvm_enable = 0,
>         .gpuvm_max_page_table_levels = 4,
> @@ -136,7 +136,7 @@ struct _vcs_dpi_ip_params_st dcn201_ip = {
>         .number_of_cursors = 1,
>  };
>
> -struct _vcs_dpi_soc_bounding_box_st dcn201_soc = {
> +static struct _vcs_dpi_soc_bounding_box_st dcn201_soc = {
>         .clock_limits = {
>                         {
>                                 .state = 0,
> --
> 2.27.0
>