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[80.6.113.119]) by smtp.gmail.com with ESMTPSA id q128sm3355051wma.38.2020.05.30.05.49.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 May 2020 05:49:49 -0700 (PDT) From: Emil Velikov To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 1/2] drm: vmwgfx: remove drm_driver::master_set() return typ Date: Sat, 30 May 2020 13:46:39 +0100 Message-Id: <20200530124640.4176323-1-emil.l.velikov@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , emil.l.velikov@gmail.com, Roland Scheidegger , VMware Graphics , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The function always returns zero (success). Ideally we'll remove it all together - although that's requires a little more work. For now, we can drop the return type and simplify the drm core code surrounding it. v2: remove redundant assignment (Sam) Cc: David Airlie Cc: Daniel Vetter Cc: VMware Graphics Cc: Roland Scheidegger Signed-off-by: Emil Velikov Cc: Sam Ravnborg Reviewed-by: Sam Ravnborg Reviewed-by: Roland Scheidegger --- VMWare team, I'm planning to push this via drm-misc. Review, ack and comments are appreciated. --- drivers/gpu/drm/drm_auth.c | 32 +++++++---------------------- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 8 +++----- include/drm/drm_drv.h | 4 ++-- 3 files changed, 12 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index 74ce0c29c960..4c723e3a689c 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -122,27 +122,19 @@ struct drm_master *drm_master_create(struct drm_device *dev) return master; } -static int drm_set_master(struct drm_device *dev, struct drm_file *fpriv, - bool new_master) +static void drm_set_master(struct drm_device *dev, struct drm_file *fpriv, + bool new_master) { - int ret = 0; - dev->master = drm_master_get(fpriv->master); - if (dev->driver->master_set) { - ret = dev->driver->master_set(dev, fpriv, new_master); - if (unlikely(ret != 0)) { - drm_master_put(&dev->master); - } - } + if (dev->driver->master_set) + dev->driver->master_set(dev, fpriv, new_master); - fpriv->was_master = (ret == 0); - return ret; + fpriv->was_master = true; } static int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv) { struct drm_master *old_master; - int ret; lockdep_assert_held_once(&dev->master_mutex); @@ -157,22 +149,12 @@ static int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv) fpriv->is_master = 1; fpriv->authenticated = 1; - ret = drm_set_master(dev, fpriv, true); - if (ret) - goto out_err; + drm_set_master(dev, fpriv, true); if (old_master) drm_master_put(&old_master); return 0; - -out_err: - /* drop references and restore old master on failure */ - drm_master_put(&fpriv->master); - fpriv->master = old_master; - fpriv->is_master = 0; - - return ret; } /* @@ -265,7 +247,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, goto out_unlock; } - ret = drm_set_master(dev, file_priv, false); + drm_set_master(dev, file_priv, false); out_unlock: mutex_unlock(&dev->master_mutex); return ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index c2247a893ed4..470428387878 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1129,9 +1129,9 @@ static long vmw_compat_ioctl(struct file *filp, unsigned int cmd, } #endif -static int vmw_master_set(struct drm_device *dev, - struct drm_file *file_priv, - bool from_open) +static void vmw_master_set(struct drm_device *dev, + struct drm_file *file_priv, + bool from_open) { /* * Inform a new master that the layout may have changed while @@ -1139,8 +1139,6 @@ static int vmw_master_set(struct drm_device *dev, */ if (!from_open) drm_sysfs_hotplug_event(dev); - - return 0; } static void vmw_master_drop(struct drm_device *dev, diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index bb924cddc09c..835c38a76ef6 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -311,8 +311,8 @@ struct drm_driver { * * Called whenever the minor master is set. Only used by vmwgfx. */ - int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, - bool from_open); + void (*master_set)(struct drm_device *dev, struct drm_file *file_priv, + bool from_open); /** * @master_drop: *