Functions drm_modeset_lock_all() and drm_modeset_unlock_all() are no longer used anywhere and can be removed.
Signed-off-by: Fernando Ramos greenfoo@u92.eu --- drivers/gpu/drm/drm_modeset_lock.c | 94 +----------------------------- include/drm/drm_modeset_lock.h | 2 - 2 files changed, 3 insertions(+), 93 deletions(-)
diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c index bf8a6e823a15..ac49bf6169a2 100644 --- a/drivers/gpu/drm/drm_modeset_lock.c +++ b/drivers/gpu/drm/drm_modeset_lock.c @@ -77,93 +77,6 @@
static DEFINE_WW_CLASS(crtc_ww_class);
-/** - * drm_modeset_lock_all - take all modeset locks - * @dev: DRM device - * - * This function takes all modeset locks, suitable where a more fine-grained - * scheme isn't (yet) implemented. Locks must be dropped by calling the - * drm_modeset_unlock_all() function. - * - * This function is deprecated. It allocates a lock acquisition context and - * stores it in &drm_device.mode_config. This facilitate conversion of - * existing code because it removes the need to manually deal with the - * acquisition context, but it is also brittle because the context is global - * and care must be taken not to nest calls. New code should use the - * drm_modeset_lock_all_ctx() function and pass in the context explicitly. - */ -void drm_modeset_lock_all(struct drm_device *dev) -{ - struct drm_mode_config *config = &dev->mode_config; - struct drm_modeset_acquire_ctx *ctx; - int ret; - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL | __GFP_NOFAIL); - if (WARN_ON(!ctx)) - return; - - mutex_lock(&config->mutex); - - drm_modeset_acquire_init(ctx, 0); - -retry: - ret = drm_modeset_lock_all_ctx(dev, ctx); - if (ret < 0) { - if (ret == -EDEADLK) { - drm_modeset_backoff(ctx); - goto retry; - } - - drm_modeset_acquire_fini(ctx); - kfree(ctx); - return; - } - ww_acquire_done(&ctx->ww_ctx); - - WARN_ON(config->acquire_ctx); - - /* - * We hold the locks now, so it is safe to stash the acquisition - * context for drm_modeset_unlock_all(). - */ - config->acquire_ctx = ctx; - - drm_warn_on_modeset_not_all_locked(dev); -} -EXPORT_SYMBOL(drm_modeset_lock_all); - -/** - * drm_modeset_unlock_all - drop all modeset locks - * @dev: DRM device - * - * This function drops all modeset locks taken by a previous call to the - * drm_modeset_lock_all() function. - * - * This function is deprecated. It uses the lock acquisition context stored - * in &drm_device.mode_config. This facilitates conversion of existing - * code because it removes the need to manually deal with the acquisition - * context, but it is also brittle because the context is global and care must - * be taken not to nest calls. New code should pass the acquisition context - * directly to the drm_modeset_drop_locks() function. - */ -void drm_modeset_unlock_all(struct drm_device *dev) -{ - struct drm_mode_config *config = &dev->mode_config; - struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; - - if (WARN_ON(!ctx)) - return; - - config->acquire_ctx = NULL; - drm_modeset_drop_locks(ctx); - drm_modeset_acquire_fini(ctx); - - kfree(ctx); - - mutex_unlock(&dev->mode_config.mutex); -} -EXPORT_SYMBOL(drm_modeset_unlock_all); - /** * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked * @dev: device @@ -380,10 +293,9 @@ EXPORT_SYMBOL(drm_modeset_unlock); * This function takes all modeset locks, suitable where a more fine-grained * scheme isn't (yet) implemented. * - * Unlike drm_modeset_lock_all(), it doesn't take the &drm_mode_config.mutex - * since that lock isn't required for modeset state changes. Callers which - * need to grab that lock too need to do so outside of the acquire context - * @ctx. + * It doesn't take the &drm_mode_config.mutex since that lock isn't required for + * modeset state changes. Callers which need to grab that lock too need to do so + * outside of the acquire context @ctx. * * Locks acquired with this function should be released by calling the * drm_modeset_drop_locks() function on @ctx. diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h index aafd07388eb7..865e64bcc4cb 100644 --- a/include/drm/drm_modeset_lock.h +++ b/include/drm/drm_modeset_lock.h @@ -132,8 +132,6 @@ struct drm_device; struct drm_crtc; struct drm_plane;
-void drm_modeset_lock_all(struct drm_device *dev); -void drm_modeset_unlock_all(struct drm_device *dev); void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
int drm_modeset_lock_all_ctx(struct drm_device *dev,