Messages in this thread | | | Date | Mon, 11 Mar 2019 15:00:04 -0300 | From | Rodrigo Siqueira <> | Subject | Re: [PATCH] drm/vkms: Remove useless call to drm_connector_register() |
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On 03/11, Daniel Vetter wrote: > On Sun, Mar 10, 2019 at 06:22:41PM -0300, Rodrigo Siqueira wrote: > > The function vkms_output_init() is invoked during the module > > initialization, and it handles the creation/configuration of the vkms > > essential elements (e.g., connectors, encoder, etc). Among the > > initializations, this function tries to initialize a connector and > > register it by calling drm_connector_register(). However, inside the > > drm_connector_register(), at the beginning of this function there is the > > following validation: > > > > if (!connector->dev->registered) > > return 0; > > > > In this sense, invoke drm_connector_register() after initializing the > > connector has no effect because the register field is false. The > > connector register happens when drm_dev_register() is invoked. > > Therefore, this commit removes the drm_connector_register() from > > vkms_output_init(). > > > > Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> > > --- > > drivers/gpu/drm/vkms/vkms_output.c | 6 ------ > > 1 file changed, 6 deletions(-) > > > > diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c > > index 3b162b25312e..a6cee4c279c2 100644 > > --- a/drivers/gpu/drm/vkms/vkms_output.c > > +++ b/drivers/gpu/drm/vkms/vkms_output.c > > @@ -71,12 +71,6 @@ int vkms_output_init(struct vkms_device *vkmsdev) > > > > drm_connector_helper_add(connector, &vkms_conn_helper_funcs); > > > > - ret = drm_connector_register(connector); > > Yeah that's only needed for connectors added when hotplugging at runtime, > not for connectors which are created at driver load time. > > Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> > > btw same issue exists with the drm_connector_unregister, that's also not > needed.
Thanks for your review :)
Should I send a V2 that also removes the drm_connector_unregister()? Or should I send it in a separated patch?
Best Regards
> -Daniel > > > - if (ret) { > > - DRM_ERROR("Failed to register connector\n"); > > - goto err_connector_register; > > - } > > - > > ret = drm_encoder_init(dev, encoder, &vkms_encoder_funcs, > > DRM_MODE_ENCODER_VIRTUAL, NULL); > > if (ret) { > > -- > > 2.21.0 > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch
-- Rodrigo Siqueira https://siqueira.tech Graduate Student Department of Computer Science University of São Paulo [unhandled content-type:application/pgp-signature] | |