diff options
author | Lyude Paul <lyude@redhat.com> | 2019-09-03 16:45:48 -0400 |
---|---|---|
committer | Lyude Paul <lyude@redhat.com> | 2019-09-03 19:36:51 -0400 |
commit | 60f9ae9d0d3dfb4c1ee8af476e04aaa11d5fd34d (patch) | |
tree | c9d03123610b5dfbe5a5eee4c672ad5d35b865d5 | |
parent | 95b0013d209dc2fb2a4c8a6025b79e4bb6fabec8 (diff) |
drm/dp_mst: Remove huge conditional in drm_dp_mst_handle_up_req()
Which reduces indentation and makes this function more legible.
Cc: Juston Li <juston.li@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Harry Wentland <hwentlan@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190903204645.25487-11-lyude@redhat.com
-rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index c8502f4a1cde..22b4dc8e7979 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3271,7 +3271,9 @@ static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr) static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr) { - int ret = 0; + struct drm_dp_sideband_msg_req_body msg; + struct drm_dp_mst_branch *mstb = NULL; + bool seqno; if (!drm_dp_get_one_sb_msg(mgr, true)) { memset(&mgr->up_req_recv, 0, @@ -3279,62 +3281,60 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr) return 0; } - if (mgr->up_req_recv.have_eomt) { - struct drm_dp_sideband_msg_req_body msg; - struct drm_dp_mst_branch *mstb = NULL; - bool seqno; - - if (!mgr->up_req_recv.initial_hdr.broadcast) { - mstb = drm_dp_get_mst_branch_device(mgr, - mgr->up_req_recv.initial_hdr.lct, - mgr->up_req_recv.initial_hdr.rad); - if (!mstb) { - DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); - memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); - return 0; - } + if (!mgr->up_req_recv.have_eomt) + return 0; + + if (!mgr->up_req_recv.initial_hdr.broadcast) { + mstb = drm_dp_get_mst_branch_device(mgr, + mgr->up_req_recv.initial_hdr.lct, + mgr->up_req_recv.initial_hdr.rad); + if (!mstb) { + DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); + memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); + return 0; } + } - seqno = mgr->up_req_recv.initial_hdr.seqno; - drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg); + seqno = mgr->up_req_recv.initial_hdr.seqno; + drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg); - if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) { - drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); + if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) { + drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); - if (!mstb) - mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.conn_stat.guid); + if (!mstb) + mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.conn_stat.guid); - if (!mstb) { - DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); - memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); - return 0; - } + if (!mstb) { + DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); + memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); + return 0; + } - drm_dp_update_port(mstb, &msg.u.conn_stat); + drm_dp_update_port(mstb, &msg.u.conn_stat); - DRM_DEBUG_KMS("Got CSN: pn: %d ldps:%d ddps: %d mcs: %d ip: %d pdt: %d\n", msg.u.conn_stat.port_number, msg.u.conn_stat.legacy_device_plug_status, msg.u.conn_stat.displayport_device_plug_status, msg.u.conn_stat.message_capability_status, msg.u.conn_stat.input_port, msg.u.conn_stat.peer_device_type); - drm_kms_helper_hotplug_event(mgr->dev); - - } else if (msg.req_type == DP_RESOURCE_STATUS_NOTIFY) { - drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); - if (!mstb) - mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.resource_stat.guid); + DRM_DEBUG_KMS("Got CSN: pn: %d ldps:%d ddps: %d mcs: %d ip: %d pdt: %d\n", msg.u.conn_stat.port_number, msg.u.conn_stat.legacy_device_plug_status, msg.u.conn_stat.displayport_device_plug_status, msg.u.conn_stat.message_capability_status, msg.u.conn_stat.input_port, msg.u.conn_stat.peer_device_type); + drm_kms_helper_hotplug_event(mgr->dev); - if (!mstb) { - DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); - memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); - return 0; - } + } else if (msg.req_type == DP_RESOURCE_STATUS_NOTIFY) { + drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false); + if (!mstb) + mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.resource_stat.guid); - DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn); + if (!mstb) { + DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct); + memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); + return 0; } - if (mstb) - drm_dp_mst_topology_put_mstb(mstb); - - memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); + DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn); } - return ret; + + if (mstb) + drm_dp_mst_topology_put_mstb(mstb); + + memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); + + return 0; } /** |