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From: Sean Paul <sean@poorly.run>
To: Fernando Ramos <greenfoo@u92.eu>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	sean@poorly.run, linux-doc@vger.kernel.org,
	amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
	linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
	nouveau@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org,
	linux-tegra@vger.kernel.org
Subject: Re: [Nouveau] [PATCH 01/15] dmr: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN()
Date: Fri, 17 Sep 2021 11:28:42 -0400	[thread overview]
Message-ID: <20210917152842.GA2515@art_vandelay> (raw)
In-Reply-To: <20210916211552.33490-2-greenfoo@u92.eu>

On Thu, Sep 16, 2021 at 11:15:38PM +0200, Fernando Ramos wrote:
> As requested in Documentation/gpu/todo.rst, replace the boilerplate code
> surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
> and DRM_MODESET_LOCK_ALL_END()
> 

Hi Fernando,
Thank you for your patch. Could you please fix the subject, changing dmr to drm?

> Signed-off-by: Fernando Ramos <greenfoo@u92.eu>
> ---
>  drivers/gpu/drm/drm_client_modeset.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
> index ced09c7c06f9..5f5184f071ed 100644
> --- a/drivers/gpu/drm/drm_client_modeset.c
> +++ b/drivers/gpu/drm/drm_client_modeset.c
> @@ -574,6 +574,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
>  	int num_connectors_detected = 0;
>  	int num_tiled_conns = 0;
>  	struct drm_modeset_acquire_ctx ctx;
> +	int err;

I think you can just reuse 'ret' instead of creating a new variable. That
ensures if the lock fails we return the error from the macros.

Sean

>  
>  	if (!drm_drv_uses_atomic_modeset(dev))
>  		return false;
> @@ -585,10 +586,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
>  	if (!save_enabled)
>  		return false;
>  
> -	drm_modeset_acquire_init(&ctx, 0);
> -
> -	while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
> -		drm_modeset_backoff(&ctx);
> +	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, err);
>  
>  	memcpy(save_enabled, enabled, count);
>  	mask = GENMASK(count - 1, 0);
> @@ -743,8 +741,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
>  		ret = false;
>  	}
>  
> -	drm_modeset_drop_locks(&ctx);
> -	drm_modeset_acquire_fini(&ctx);
> +	DRM_MODESET_LOCK_ALL_END(dev, ctx, err);
>  
>  	kfree(save_enabled);
>  	return ret;
> -- 
> 2.33.0
> 

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

  reply	other threads:[~2021-09-17 15:28 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-16 21:15 [Nouveau] [PATCH 00/15] drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 01/15] dmr: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN() Fernando Ramos
2021-09-17 15:28   ` Sean Paul [this message]
2021-09-17 22:07     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 02/15] dmr/i915: " Fernando Ramos
2021-09-17 15:31   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 03/15] dmr/msm: " Fernando Ramos
2021-09-17 15:29   ` Sean Paul
2021-09-20  1:54   ` kernel test robot
2021-09-20 21:25     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 04/15] drm: cleanup: drm_modeset_lock_all() " Fernando Ramos
2021-09-17 15:35   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 05/15] drm/vmwgfx: " Fernando Ramos
2021-09-17 15:37   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 06/15] drm/tegra: " Fernando Ramos
2021-09-17 15:38   ` Sean Paul
2021-09-17 22:34     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 07/15] drm/shmobile: " Fernando Ramos
2021-09-17 15:38   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 08/15] drm/radeon: " Fernando Ramos
2021-09-17 15:40   ` Sean Paul
2021-09-17 22:32     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 09/15] drm/omapdrm: " Fernando Ramos
2021-09-17 15:40   ` Sean Paul
2021-09-17 15:41   ` Sean Paul
2021-09-17 22:37     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 10/15] drm/nouveau: " Fernando Ramos
2021-09-17 15:42   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 11/15] drm/msm: " Fernando Ramos
2021-09-17 15:42   ` Sean Paul
2021-09-17 22:41     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 12/15] drm/i915: " Fernando Ramos
2021-09-17 15:48   ` Sean Paul
2021-09-17 22:57     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 13/15] drm/gma500: " Fernando Ramos
2021-09-17 15:49   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 14/15] drm/amd: " Fernando Ramos
2021-09-17 15:55   ` Sean Paul
2021-09-17 23:17     ` Fernando Ramos
2021-09-18  9:42       ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 15/15] doc: drm: remove TODO entry regarding DRM_MODSET_LOCK_ALL cleanup Fernando Ramos
2021-09-17 15:56   ` Sean Paul
2021-09-17 23:21     ` Fernando Ramos
2021-09-17 15:24 ` [Nouveau] [PATCH 00/15] drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible Daniel Vetter
2021-09-17 21:41   ` Fernando Ramos

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