linux-kernel - Re: [PATCH drm/hisilicon v2 1/2] drm/hisilicon: Use managed mode-config init

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 7 Dec 2020 10:22:44 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Tian Tao <tiantao6@...ilicon.com>, airlied@...ux.ie,
        daniel@...ll.ch, kraxel@...hat.com, alexander.deucher@....com,
        tglx@...utronix.de, dri-devel@...ts.freedesktop.org,
        xinliang.liu@...aro.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH drm/hisilicon v2 1/2] drm/hisilicon: Use managed
 mode-config init

Hi

Am 07.12.20 um 10:05 schrieb Tian Tao:
> Using drmm_mode_config_init() sets up managed release of modesetting
> resources.
> 

Individual patches usually contain a changelog to highlight the 
difference to previous versions. Please add one before committing the 
patch.  Your cover letter for the series already does this correctly.

> Signed-off-by: Tian Tao <tiantao6@...ilicon.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>

Thanks for all these updates.

> ---
>   drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 14 +++-----------
>   drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h |  1 -
>   2 files changed, 3 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 3687753..7f01213 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -96,8 +96,9 @@ static int hibmc_kms_init(struct hibmc_drm_private *priv)
>   	struct drm_device *dev = &priv->dev;
>   	int ret;
>   
> -	drm_mode_config_init(dev);
> -	priv->mode_config_initialized = true;
> +	ret = drmm_mode_config_init(dev);
> +	if (ret)
> +		return ret;
>   
>   	dev->mode_config.min_width = 0;
>   	dev->mode_config.min_height = 0;
> @@ -125,14 +126,6 @@ static int hibmc_kms_init(struct hibmc_drm_private *priv)
>   	return 0;
>   }
>   
> -static void hibmc_kms_fini(struct hibmc_drm_private *priv)
> -{
> -	if (priv->mode_config_initialized) {
> -		drm_mode_config_cleanup(&priv->dev);
> -		priv->mode_config_initialized = false;
> -	}
> -}
> -
>   /*
>    * It can operate in one of three modes: 0, 1 or Sleep.
>    */
> @@ -262,7 +255,6 @@ static int hibmc_unload(struct drm_device *dev)
>   	drm_atomic_helper_shutdown(dev);
>   
>   	pci_disable_msi(dev->pdev);
> -	hibmc_kms_fini(priv);
>   	dev->dev_private = NULL;
>   	return 0;
>   }
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
> index a49c10e..7d263f4 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
> @@ -42,7 +42,6 @@ struct hibmc_drm_private {
>   	struct drm_crtc crtc;
>   	struct drm_encoder encoder;
>   	struct hibmc_connector connector;
> -	bool mode_config_initialized;
>   };
>   
>   static inline struct hibmc_connector *to_hibmc_connector(struct drm_connector *connector)
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



Download attachment "OpenPGP_signature" of type "application/pgp-signature" (841 bytes)