linux-kernel - [PATCH v1 1/2] drm/nouveau/kms/nv50-: Remove several set but not used variables "ret" in disp.c

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Message-ID: <1614238026-43279-1-git-send-email-luojiaxing@huawei.com>
Date:   Thu, 25 Feb 2021 15:27:06 +0800
From:   Luo Jiaxing <luojiaxing@...wei.com>
To:     <nouveau@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
        <bskeggs@...hat.com>
CC:     <linux-kernel@...r.kernel.org>, <linuxarm@...neuler.org>,
        <luojiaxing@...wei.com>
Subject: [PATCH v1 1/2] drm/nouveau/kms/nv50-: Remove several set but not used variables "ret" in disp.c

Fixes the following warning when using W=1 to build kernel:

drivers/gpu/drm/nouveau/dispnv50/disp.c: In function ‘nv50_mstm_cleanup’:
drivers/gpu/drm/nouveau/dispnv50/disp.c:1389:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 1389 |  int ret;
      |      ^~~
drivers/gpu/drm/nouveau/dispnv50/disp.c: In function ‘nv50_mstm_prepare’:
drivers/gpu/drm/nouveau/dispnv50/disp.c:1413:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 1413 |  int ret;
      |      ^~~

Signed-off-by: Luo Jiaxing <luojiaxing@...wei.com>
---
 drivers/gpu/drm/nouveau/dispnv50/disp.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 196612a..828f48d 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -1386,12 +1386,11 @@ nv50_mstm_cleanup(struct nv50_mstm *mstm)
 {
 	struct nouveau_drm *drm = nouveau_drm(mstm->outp->base.base.dev);
 	struct drm_encoder *encoder;
-	int ret;
 
 	NV_ATOMIC(drm, "%s: mstm cleanup\n", mstm->outp->base.base.name);
-	ret = drm_dp_check_act_status(&mstm->mgr);
+	drm_dp_check_act_status(&mstm->mgr);
 
-	ret = drm_dp_update_payload_part2(&mstm->mgr);
+	drm_dp_update_payload_part2(&mstm->mgr);
 
 	drm_for_each_encoder(encoder, mstm->outp->base.base.dev) {
 		if (encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
@@ -1410,10 +1409,9 @@ nv50_mstm_prepare(struct nv50_mstm *mstm)
 {
 	struct nouveau_drm *drm = nouveau_drm(mstm->outp->base.base.dev);
 	struct drm_encoder *encoder;
-	int ret;
 
 	NV_ATOMIC(drm, "%s: mstm prepare\n", mstm->outp->base.base.name);
-	ret = drm_dp_update_payload_part1(&mstm->mgr);
+	drm_dp_update_payload_part1(&mstm->mgr);
 
 	drm_for_each_encoder(encoder, mstm->outp->base.base.dev) {
 		if (encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
-- 
2.7.4