Re: [PATCH] drm/sti: mark symbols static where possible

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On Sun, Sep 25, 2016 at 3:57 AM, Baoyou Xie <baoyou.xie@xxxxxxxxxx> wrote:
> We get 6 warnings when building kernel with W=1:
> drivers/gpu/drm/sti/sti_mixer.c:361:6: warning: no previous prototype for 'sti_mixer_set_matrix' [-Wmissing-prototypes]
> drivers/gpu/drm/sti/sti_dvo.c:109:5: warning: no previous prototype for 'dvo_awg_generate_code' [-Wmissing-prototypes]
> drivers/gpu/drm/sti/sti_gdp.c:476:5: warning: no previous prototype for 'sti_gdp_field_cb' [-Wmissing-prototypes]
> drivers/gpu/drm/sti/sti_hqvdp.c:786:5: warning: no previous prototype for 'sti_hqvdp_vtg_cb' [-Wmissing-prototypes]
> drivers/gpu/drm/sti/sti_hqvdp.c:1292:5: warning: no previous prototype for 'sti_hqvdp_bind' [-Wmissing-prototypes]
> drivers/gpu/drm/sti/sti_drv.c:143:6: warning: no previous prototype for 'sti_drm_dbg_cleanup' [-Wmissing-prototypes]
>
> In fact, these functions are only used in the file in which they are
> declared and don't need a declaration, but can be made static.
> So this patch marks these functions with 'static'.
>
> Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx>

Applied to -misc, thanks.

Sean

> ---
>  drivers/gpu/drm/sti/sti_drv.c   | 2 +-
>  drivers/gpu/drm/sti/sti_dvo.c   | 3 ++-
>  drivers/gpu/drm/sti/sti_gdp.c   | 2 +-
>  drivers/gpu/drm/sti/sti_hqvdp.c | 5 +++--
>  drivers/gpu/drm/sti/sti_mixer.c | 2 +-
>  5 files changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
> index 7cd3804..e6f0706 100644
> --- a/drivers/gpu/drm/sti/sti_drv.c
> +++ b/drivers/gpu/drm/sti/sti_drv.c
> @@ -140,7 +140,7 @@ static int sti_drm_dbg_init(struct drm_minor *minor)
>         return ret;
>  }
>
> -void sti_drm_dbg_cleanup(struct drm_minor *minor)
> +static void sti_drm_dbg_cleanup(struct drm_minor *minor)
>  {
>         drm_debugfs_remove_files(sti_drm_dbg_list,
>                                  ARRAY_SIZE(sti_drm_dbg_list), minor);
> diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
> index 00881eb..4545ad0 100644
> --- a/drivers/gpu/drm/sti/sti_dvo.c
> +++ b/drivers/gpu/drm/sti/sti_dvo.c
> @@ -106,7 +106,8 @@ struct sti_dvo_connector {
>         container_of(x, struct sti_dvo_connector, drm_connector)
>
>  #define BLANKING_LEVEL 16
> -int dvo_awg_generate_code(struct sti_dvo *dvo, u8 *ram_size, u32 *ram_code)
> +static int
> +dvo_awg_generate_code(struct sti_dvo *dvo, u8 *ram_size, u32 *ram_code)
>  {
>         struct drm_display_mode *mode = &dvo->mode;
>         struct dvo_config *config = dvo->config;
> diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
> index b8d942c..4648d1b 100644
> --- a/drivers/gpu/drm/sti/sti_gdp.c
> +++ b/drivers/gpu/drm/sti/sti_gdp.c
> @@ -473,7 +473,7 @@ static void sti_gdp_disable(struct sti_gdp *gdp)
>   * RETURNS:
>   * 0 on success.
>   */
> -int sti_gdp_field_cb(struct notifier_block *nb,
> +static int sti_gdp_field_cb(struct notifier_block *nb,
>                 unsigned long event, void *data)
>  {
>         struct sti_gdp *gdp = container_of(nb, struct sti_gdp, vtg_field_nb);
> diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
> index b5ee783..7f0dea8 100644
> --- a/drivers/gpu/drm/sti/sti_hqvdp.c
> +++ b/drivers/gpu/drm/sti/sti_hqvdp.c
> @@ -783,7 +783,8 @@ static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
>   * RETURNS:
>   * 0 on success.
>   */
> -int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
> +static int
> +sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
>  {
>         struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb);
>         int btm_cmd_offset, top_cmd_offest;
> @@ -1289,7 +1290,7 @@ static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev,
>         return &hqvdp->plane.drm_plane;
>  }
>
> -int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
> +static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
>  {
>         struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
>         struct drm_device *drm_dev = data;
> diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
> index 7d9aea8..b78cec5 100644
> --- a/drivers/gpu/drm/sti/sti_mixer.c
> +++ b/drivers/gpu/drm/sti/sti_mixer.c
> @@ -358,7 +358,7 @@ int sti_mixer_set_plane_status(struct sti_mixer *mixer,
>         return 0;
>  }
>
> -void sti_mixer_set_matrix(struct sti_mixer *mixer)
> +static void sti_mixer_set_matrix(struct sti_mixer *mixer)
>  {
>         unsigned int i;
>
> --
> 2.7.4
>
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