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Fri, 24 Oct 2025 04:20:28 -0700 (PDT) Date: Fri, 24 Oct 2025 13:20:25 +0200 From: =?iso-8859-1?Q?Jos=E9_Exp=F3sito?= To: Louis Chauvet Cc: Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Jonathan Corbet , victoria@system76.com, sebastian.wick@redhat.com, thomas.petazzoni@bootlin.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH 02/22] drm/vkms: Introduce configfs for plane name Message-ID: References: <20251018-vkms-all-config-v1-0-a7760755d92d@bootlin.com> <20251018-vkms-all-config-v1-2-a7760755d92d@bootlin.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251018-vkms-all-config-v1-2-a7760755d92d@bootlin.com> On Sat, Oct 18, 2025 at 04:01:02AM +0200, Louis Chauvet wrote: > Use directory name as name for the plane. > > Signed-off-by: Louis Chauvet > --- > drivers/gpu/drm/vkms/vkms_configfs.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/vkms/vkms_configfs.c b/drivers/gpu/drm/vkms/vkms_configfs.c > index 07ab794e1052..ea245e2e2fd2 100644 > --- a/drivers/gpu/drm/vkms/vkms_configfs.c > +++ b/drivers/gpu/drm/vkms/vkms_configfs.c > @@ -376,6 +376,7 @@ static struct config_group *make_plane_group(struct config_group *group, > kfree(plane); > return ERR_CAST(plane->config); > } > + vkms_config_plane_set_name(plane->config, name); Could this break the UAPI? Until now, the name was NULL. In __drm_universal_plane_init(), when the name is not set, "plane-%d" is used to compose its name. Therefore, if we now use the directory name as the plane name, we are changing a bit how VKMS behaves. It is not a big deal, but I think that a "name" file could be a safer approach. Jose > config_group_init_type_name(&plane->group, name, &plane_item_type); > > > -- > 2.51.0 >