linux-kernel - Re: [PATCH 09/15] drm/omapdrm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL

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Date:   Fri, 17 Sep 2021 11:40:57 -0400
From:   Sean Paul <sean@...rly.run>
To:     Fernando Ramos <greenfoo@....eu>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        sean@...rly.run, linux-doc@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        nouveau@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: Re: [PATCH 09/15] drm/omapdrm: cleanup: drm_modeset_lock_all() -->
 DRM_MODESET_LOCK_ALL_BEGIN()

On Thu, Sep 16, 2021 at 11:15:46PM +0200, Fernando Ramos wrote:
> As requested in Documentation/gpu/todo.rst, replace driver calls to
> drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
> DRM_MODESET_LOCK_ALL_END()
> 
> Signed-off-by: Fernando Ramos <greenfoo@....eu>
> ---
>  drivers/gpu/drm/omapdrm/omap_fb.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c
> index 190afc564914..56013c3ef701 100644
> --- a/drivers/gpu/drm/omapdrm/omap_fb.c
> +++ b/drivers/gpu/drm/omapdrm/omap_fb.c
> @@ -62,13 +62,15 @@ static int omap_framebuffer_dirty(struct drm_framebuffer *fb,
>  				  unsigned num_clips)
>  {
>  	struct drm_crtc *crtc;
> +	struct drm_modeset_acquire_ctx ctx;
> +	int ret;
>  
> -	drm_modeset_lock_all(fb->dev);
> +	DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, 0, ret);
>  
>  	drm_for_each_crtc(crtc, fb->dev)
>  		omap_crtc_flush(crtc);
>  
> -	drm_modeset_unlock_all(fb->dev);
> +	DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret);
>  
>  	return 0;

Return ret here

>  }
> -- 
> 2.33.0
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS