linux-kernel - [PATCH -next] drm/drm_dp_mst:remove set but not used variable 'origlen'

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Message-ID: <20200118080628.mxcx7bfwdas5m7un@kaowomen.cn>
Date:   Sat, 18 Jan 2020 16:06:28 +0800
From:   Bo YU <tsu.yubo@...il.com>
To:     maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        irlied@...ux.ie, daniel@...ll.ch, airlied@...hat.com,
        tprevite@...il.com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH -next] drm/drm_dp_mst:remove set but not used variable
 'origlen'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/drm_dp_mst_topology.c:3693:16: warning: variable
‘origlen’ set but not used [-Wunused-but-set-variable]
  int replylen, origlen, curreply;

It looks like never use variable origlen after assign value to it.

Fixes: ad7f8a1f9ced7 (drm/helper: add Displayport multi-stream helper (v0.6))
Signed-off-by: Bo YU <tsu.yubo@...il.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 4b74193b89ce..4c76e673206b 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -3690,7 +3690,7 @@ static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 {
 	int len;
 	u8 replyblock[32];
-	int replylen, origlen, curreply;
+	int replylen, curreply;
 	int ret;
 	struct drm_dp_sideband_msg_rx *msg;
 	int basereg = up ? DP_SIDEBAND_MSG_UP_REQ_BASE : DP_SIDEBAND_MSG_DOWN_REP_BASE;
@@ -3710,7 +3710,6 @@ static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 	}
 	replylen = msg->curchunk_len + msg->curchunk_hdrlen;
 
-	origlen = replylen;
 	replylen -= len;
 	curreply = len;
 	while (replylen > 0) {
-- 
2.11.0