From: Bob Copeland Date: Tue, 5 Nov 2013 19:16:52 +0000 (-0800) Subject: mac80211: mesh: factor out common plink close/estab code X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e76d67f035649f1cc40603ab06ebcc1d2eb49253;p=linux-beck.git mac80211: mesh: factor out common plink close/estab code Reject and accepted close events always put the host in the holding state and compute a reason code based only on the current state. Likewise on establish we always do the same setup. Put these in functions to save some duplicated code. Signed-off-by: Bob Copeland Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index c3a3faf9b311..3bab76f4f3b6 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -655,6 +655,39 @@ u32 mesh_plink_block(struct sta_info *sta) return changed; } +static void mesh_plink_close(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta, + enum plink_event event) +{ + struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg; + + __le16 reason = (event == CLS_ACPT) ? + cpu_to_le16(WLAN_REASON_MESH_CLOSE) : + cpu_to_le16(WLAN_REASON_MESH_CONFIG); + + sta->reason = reason; + sta->plink_state = NL80211_PLINK_HOLDING; + if (!mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout)) + sta->ignore_plink_timer = true; +} + +static u32 mesh_plink_establish(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta) +{ + struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg; + u32 changed = 0; + + del_timer(&sta->plink_timer); + sta->plink_state = NL80211_PLINK_ESTAB; + changed |= mesh_plink_inc_estab_count(sdata); + changed |= mesh_set_ht_prot_mode(sdata); + changed |= mesh_set_short_slot_time(sdata); + mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr); + ieee80211_mps_sta_status_update(sta); + changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode); + return changed; +} + void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, @@ -671,7 +704,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, u8 ie_len; u8 *baseaddr; u32 changed = 0; - __le16 plid, llid, reason; + __le16 plid, llid; /* need action_code, aux */ if (len < IEEE80211_MIN_ACTION_SIZE + 3) @@ -782,10 +815,10 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, if (!sta && !matches_local) { rcu_read_unlock(); - reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG); llid = 0; mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE, - mgmt->sa, llid, plid, reason); + mgmt->sa, llid, plid, + cpu_to_le16(WLAN_REASON_MESH_CONFIG)); return; } else if (!sta) { /* ftype == WLAN_SP_MESH_PEERING_OPEN */ @@ -850,7 +883,6 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, mpl_dbg(sdata, "peer %pM in state %s got event %s\n", mgmt->sa, mplstates[sta->plink_state], mplevents[event]); - reason = 0; spin_lock_bh(&sta->lock); switch (sta->plink_state) { case NL80211_PLINK_LISTEN: @@ -880,18 +912,11 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, switch (event) { case OPN_RJCT: case CNF_RJCT: - reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG); case CLS_ACPT: - if (!reason) - reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE); - sta->reason = reason; - sta->plink_state = NL80211_PLINK_HOLDING; - if (!mod_plink_timer(sta, - mshcfg->dot11MeshHoldingTimeout)) - sta->ignore_plink_timer = true; - + mesh_plink_close(sdata, sta, event); action = WLAN_SP_MESH_PEERING_CLOSE; break; + case OPN_ACPT: /* retry timer is left untouched */ sta->plink_state = NL80211_PLINK_OPN_RCVD; @@ -914,32 +939,15 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, switch (event) { case OPN_RJCT: case CNF_RJCT: - reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG); case CLS_ACPT: - if (!reason) - reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE); - sta->reason = reason; - sta->plink_state = NL80211_PLINK_HOLDING; - if (!mod_plink_timer(sta, - mshcfg->dot11MeshHoldingTimeout)) - sta->ignore_plink_timer = true; - + mesh_plink_close(sdata, sta, event); action = WLAN_SP_MESH_PEERING_CLOSE; break; case OPN_ACPT: action = WLAN_SP_MESH_PEERING_CONFIRM; break; case CNF_ACPT: - del_timer(&sta->plink_timer); - sta->plink_state = NL80211_PLINK_ESTAB; - changed |= mesh_plink_inc_estab_count(sdata); - changed |= mesh_set_ht_prot_mode(sdata); - changed |= mesh_set_short_slot_time(sdata); - mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", - sta->sta.addr); - ieee80211_mps_sta_status_update(sta); - changed |= ieee80211_mps_set_sta_local_pm(sta, - mshcfg->power_mode); + changed |= mesh_plink_establish(sdata, sta); break; default: break; @@ -950,30 +958,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, switch (event) { case OPN_RJCT: case CNF_RJCT: - reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG); case CLS_ACPT: - if (!reason) - reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE); - sta->reason = reason; - sta->plink_state = NL80211_PLINK_HOLDING; - if (!mod_plink_timer(sta, - mshcfg->dot11MeshHoldingTimeout)) - sta->ignore_plink_timer = true; - + mesh_plink_close(sdata, sta, event); action = WLAN_SP_MESH_PEERING_CLOSE; break; case OPN_ACPT: - del_timer(&sta->plink_timer); - sta->plink_state = NL80211_PLINK_ESTAB; - changed |= mesh_plink_inc_estab_count(sdata); - changed |= mesh_set_ht_prot_mode(sdata); - changed |= mesh_set_short_slot_time(sdata); - mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", - sta->sta.addr); + changed |= mesh_plink_establish(sdata, sta); action = WLAN_SP_MESH_PEERING_CONFIRM; - ieee80211_mps_sta_status_update(sta); - changed |= ieee80211_mps_set_sta_local_pm(sta, - mshcfg->power_mode); break; default: break; @@ -983,13 +974,10 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, case NL80211_PLINK_ESTAB: switch (event) { case CLS_ACPT: - reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE); - sta->reason = reason; changed |= __mesh_plink_deactivate(sta); - sta->plink_state = NL80211_PLINK_HOLDING; - mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout); changed |= mesh_set_ht_prot_mode(sdata); changed |= mesh_set_short_slot_time(sdata); + mesh_plink_close(sdata, sta, event); action = WLAN_SP_MESH_PEERING_CLOSE; break; case OPN_ACPT: