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authorLyude Paul <lyude@redhat.com>2019-09-03 16:45:47 -0400
committerLyude Paul <lyude@redhat.com>2019-09-03 19:30:47 -0400
commit95b0013d209dc2fb2a4c8a6025b79e4bb6fabec8 (patch)
treea27f91f419ea1f842accea69745625702860ad3f
parent2f015ec6eab69301fdcf54d397810d72362d7223 (diff)
drm/dp_mst: Refactor drm_dp_send_enum_path_resources
Use more pointers so we don't have to write out txmsg->reply.u.path_resources each time. Also, fix line wrapping + rearrange local variables. 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/20190903204645.25487-10-lyude@redhat.com
-rw-r--r--drivers/gpu/drm/drm_dp_mst_topology.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index ae1a3c4b6b17..c8502f4a1cde 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2463,12 +2463,14 @@ static void drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
kfree(txmsg);
}
-static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_branch *mstb,
- struct drm_dp_mst_port *port)
+static int
+drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_branch *mstb,
+ struct drm_dp_mst_port *port)
{
- int len;
+ struct drm_dp_enum_path_resources_ack_reply *path_res;
struct drm_dp_sideband_msg_tx *txmsg;
+ int len;
int ret;
txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL);
@@ -2482,14 +2484,20 @@ static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr,
ret = drm_dp_mst_wait_tx_reply(mstb, txmsg);
if (ret > 0) {
+ path_res = &txmsg->reply.u.path_resources;
+
if (txmsg->reply.reply_type == DP_SIDEBAND_REPLY_NAK) {
DRM_DEBUG_KMS("enum path resources nak received\n");
} else {
- if (port->port_num != txmsg->reply.u.path_resources.port_number)
+ if (port->port_num != path_res->port_number)
DRM_ERROR("got incorrect port in response\n");
- DRM_DEBUG_KMS("enum path resources %d: %d %d\n", txmsg->reply.u.path_resources.port_number, txmsg->reply.u.path_resources.full_payload_bw_number,
- txmsg->reply.u.path_resources.avail_payload_bw_number);
- port->available_pbn = txmsg->reply.u.path_resources.avail_payload_bw_number;
+
+ DRM_DEBUG_KMS("enum path resources %d: %d %d\n",
+ path_res->port_number,
+ path_res->full_payload_bw_number,
+ path_res->avail_payload_bw_number);
+ port->available_pbn =
+ path_res->avail_payload_bw_number;
}
}