mac80211: mesh: rewrite rssi_threshold_check in C

Use C instead of cpp for type checking.  Also swap the arguments
into the usual sdata -> sta order.

Signed-off-by: Bob Copeland <bob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 12 insertions, 8 deletions

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 5048658709d0..36b6cfffa6fb 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -19,12 +19,6 @@
 #define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \
                                 jiffies + HZ * t / 1000))
 
-/* We only need a valid sta if user configured a minimum rssi_threshold. */
-#define rssi_threshold_check(sta, sdata) \
-                (sdata->u.mesh.mshcfg.rssi_threshold == 0 ||\
-                (sta && (s8) -ewma_read(&sta->avg_signal) > \
-                sdata->u.mesh.mshcfg.rssi_threshold))
-
 enum plink_event {
         PLINK_UNDEFINED,
         OPN_ACPT,
@@ -63,6 +57,16 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
                                enum ieee80211_self_protected_actioncode action,
                                u8 *da, __le16 llid, __le16 plid, __le16 reason);
 
+
+/* We only need a valid sta if user configured a minimum rssi_threshold. */
+static bool rssi_threshold_check(struct ieee80211_sub_if_data *sdata,
+                                 struct sta_info *sta)
+{
+        s32 rssi_threshold = sdata->u.mesh.mshcfg.rssi_threshold;
+        return rssi_threshold == 0 ||
+               (sta && (s8) -ewma_read(&sta->avg_signal) > rssi_threshold);
+}
+
 /**
  * mesh_plink_fsm_restart - restart a mesh peer link finite state machine
  *
@@ -518,7 +522,7 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
             sta->plink_state == NL80211_PLINK_LISTEN &&
             sdata->u.mesh.accepting_plinks &&
             sdata->u.mesh.mshcfg.auto_open_plinks &&
-            rssi_threshold_check(sta, sdata))
+            rssi_threshold_check(sdata, sta))
                 changed = mesh_plink_open(sta);
 
         ieee80211_mps_frame_release(sta, elems);
@@ -776,7 +780,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
                         mesh_matches_local(sdata, &elems);
 
         if (ftype == WLAN_SP_MESH_PEERING_OPEN &&
-            !rssi_threshold_check(sta, sdata)) {
+            !rssi_threshold_check(sdata, sta)) {
                 mpl_dbg(sdata, "Mesh plink: %pM does not meet rssi threshold\n",
                         mgmt->sa);
                 rcu_read_unlock();