linux-kernel - [PATCH v3 02/11] drm/msm: remove unlikely() from WARN

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Message-Id: <20190829165025.15750-2-efremov@linux.com>
Date:   Thu, 29 Aug 2019 19:50:16 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     linux-kernel@...r.kernel.org
Cc:     Denis Efremov <efremov@...ux.com>, Rob Clark <robdclark@...il.com>,
        Sean Paul <sean@...rly.run>, Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH v3 02/11] drm/msm: remove unlikely() from WARN_ON() conditions

"unlikely(WARN_ON(x))" is excessive. WARN_ON() already uses unlikely()
internally.

Signed-off-by: Denis Efremov <efremov@...ux.com>
Cc: Rob Clark <robdclark@...il.com>
Cc: Sean Paul <sean@...rly.run>
Cc: Joe Perches <joe@...ches.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-arm-msm@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_ctl.c | 4 ++--
 drivers/gpu/drm/msm/disp/mdp_format.c    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_ctl.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_ctl.c
index 4804cf40de14..030279d7b64b 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_ctl.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_ctl.c
@@ -253,7 +253,7 @@ int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline,
 	u32 blend_cfg;
 	struct mdp5_hw_mixer *mixer = pipeline->mixer;
 
-	if (unlikely(WARN_ON(!mixer))) {
+	if (WARN_ON(!mixer)) {
 		DRM_DEV_ERROR(ctl_mgr->dev->dev, "CTL %d cannot find LM",
 			ctl->id);
 		return -EINVAL;
@@ -695,7 +695,7 @@ struct mdp5_ctl_manager *mdp5_ctlm_init(struct drm_device *dev,
 		goto fail;
 	}
 
-	if (unlikely(WARN_ON(ctl_cfg->count > MAX_CTL))) {
+	if (WARN_ON(ctl_cfg->count > MAX_CTL)) {
 		DRM_DEV_ERROR(dev->dev, "Increase static pool size to at least %d\n",
 				ctl_cfg->count);
 		ret = -ENOSPC;
diff --git a/drivers/gpu/drm/msm/disp/mdp_format.c b/drivers/gpu/drm/msm/disp/mdp_format.c
index 8afb0f9c04bb..5495d8b3f5b9 100644
--- a/drivers/gpu/drm/msm/disp/mdp_format.c
+++ b/drivers/gpu/drm/msm/disp/mdp_format.c
@@ -174,7 +174,7 @@ const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format,
 
 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type type)
 {
-	if (unlikely(WARN_ON(type >= CSC_MAX)))
+	if (WARN_ON(type >= CSC_MAX))
 		return NULL;
 
 	return &csc_convert[type];
-- 
2.21.0