From ea441bd33f93aa7f6f404c8877e6d3313a4dbdbe Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 9 Jan 2017 19:25:43 +0800 Subject: [PATCH] drm: nouveau: use crtc helper drm_crtc_from_index() Use drm_crtc_from_index() to find drm_crtc for given index. Signed-off-by: Shawn Guo Cc: Ben Skeggs Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1483961145-18453-5-git-send-email-shawnguo@kernel.org --- drivers/gpu/drm/nouveau/nouveau_display.c | 33 +++++++++++++++++-------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index add353e..6b57007 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -58,27 +58,30 @@ int nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe) { struct drm_crtc *crtc; - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); - if (nv_crtc->index == pipe) { - nvif_notify_get(&nv_crtc->vblank); - return 0; - } - } - return -EINVAL; + struct nouveau_crtc *nv_crtc; + + crtc = drm_crtc_from_index(dev, pipe); + if (!crtc) + return -EINVAL; + + nv_crtc = nouveau_crtc(crtc); + nvif_notify_get(&nv_crtc->vblank); + + return 0; } void nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe) { struct drm_crtc *crtc; - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); - if (nv_crtc->index == pipe) { - nvif_notify_put(&nv_crtc->vblank); - return; - } - } + struct nouveau_crtc *nv_crtc; + + crtc = drm_crtc_from_index(dev, pipe); + if (!crtc) + return; + + nv_crtc = nouveau_crtc(crtc); + nvif_notify_put(&nv_crtc->vblank); } static inline int -- 2.7.4