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: ad7f8a1f9ced ("drm/helper: add Displayport multi-stream helper (v0.6)")
Signed-off-by: Bo YU <tsu.yubo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200118080628.mxcx7bfwdas5m7un@kaowomen.cn

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index f45e36f04ca97674868634b9c346623e51e28208..80f758025c4ccbc12dcda27db1e5ca158d2d0281 100644 (file)
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -3639,7 +3639,7 @@ 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;
@@ -3659,7 +3659,6 @@ 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) {