From f743ff4907fa5bc2b460f48ace831a560806a9fb Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Wed, 18 Apr 2012 19:23:43 -0700 Subject: [PATCH] mac80211: refactor mesh peer rate handling To avoid passing supp_rates and basic_rates around all the time, just derive these when needed in mesh_matches_local() and mesh_peer_init(). Signed-off-by: Thomas Pedersen Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 19 +++++++++---------- net/mac80211/mesh.h | 10 +++++----- net/mac80211/mesh_plink.c | 25 +++++++++++-------------- 3 files changed, 25 insertions(+), 29 deletions(-) diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 133c118..598a96a 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -64,18 +64,18 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data) /** * mesh_matches_local - check if the config of a mesh point matches ours * - * @ie: information elements of a management frame from the mesh peer * @sdata: local mesh subif - * @basic_rates: BSSBasicRateSet of the peer candidate + * @ie: information elements of a management frame from the mesh peer * * This function checks if the mesh configuration of a mesh point matches the * local mesh configuration, i.e. if both nodes belong to the same mesh network. */ -bool mesh_matches_local(struct ieee802_11_elems *ie, - struct ieee80211_sub_if_data *sdata, u32 basic_rates) +bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, + struct ieee802_11_elems *ie) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; + u32 basic_rates = 0; /* * As support for each feature is added, check for matching @@ -96,6 +96,9 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) goto mismatch; + ieee80211_sta_get_rates(local, ie, local->oper_channel->band, + &basic_rates); + if (sdata->vif.bss_conf.basic_rates != basic_rates) goto mismatch; @@ -630,7 +633,6 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee802_11_elems elems; struct ieee80211_channel *channel; - u32 supp_rates = 0, basic_rates = 0; size_t baselen; int freq; enum ieee80211_band band = rx_status->band; @@ -661,12 +663,9 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; - supp_rates = ieee80211_sta_get_rates(local, &elems, - band, &basic_rates); - if (elems.mesh_id && elems.mesh_config && - mesh_matches_local(&elems, sdata, basic_rates)) - mesh_neighbour_update(mgmt->sa, supp_rates, sdata, &elems); + mesh_matches_local(sdata, &elems)) + mesh_neighbour_update(sdata, mgmt->sa, &elems); if (ifmsh->sync_ops) ifmsh->sync_ops->rx_bcn_presp(sdata, diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 4ad7389..345f0e7 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -222,8 +222,8 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr, char *addr6); int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr, struct ieee80211_sub_if_data *sdata); -bool mesh_matches_local(struct ieee802_11_elems *ie, - struct ieee80211_sub_if_data *sdata, u32 basic_rates); +bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, + struct ieee802_11_elems *ie); void mesh_ids_set_default(struct ieee80211_if_mesh *mesh); void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata); @@ -276,9 +276,9 @@ int mesh_path_add_gate(struct mesh_path *mpath); int mesh_path_send_to_gates(struct mesh_path *mpath); int mesh_gate_num(struct ieee80211_sub_if_data *sdata); /* Mesh plinks */ -void mesh_neighbour_update(u8 *hw_addr, u32 rates, - struct ieee80211_sub_if_data *sdata, - struct ieee802_11_elems *ie); +void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata, + u8 *hw_addr, + struct ieee802_11_elems *ie); bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie); void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata); void mesh_plink_broken(struct sta_info *sta); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index c3a0b0a..c2af7b3 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -268,20 +268,22 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, * * @sdata: local meshif * @addr: peer's address - * @rates: station's supported rates * @elems: IEs from beacon or mesh peering frame * * call under RCU */ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, - u8 *addr, u32 rates, + u8 *addr, struct ieee802_11_elems *elems) { struct ieee80211_local *local = sdata->local; + enum ieee80211_band band = local->oper_channel->band; struct ieee80211_supported_band *sband; + u32 rates, basic_rates = 0; struct sta_info *sta; - sband = local->hw.wiphy->bands[local->oper_channel->band]; + sband = local->hw.wiphy->bands[band]; + rates = ieee80211_sta_get_rates(local, elems, band, &basic_rates); sta = sta_info_get(sdata, addr); if (!sta) { @@ -292,7 +294,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, spin_lock_bh(&sta->lock); sta->last_rx = jiffies; - sta->sta.supp_rates[local->hw.conf.channel->band] = rates; + sta->sta.supp_rates[band] = rates; if (elems->ht_cap_elem) ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems->ht_cap_elem, @@ -306,8 +308,8 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, return sta; } -void mesh_neighbour_update(u8 *hw_addr, u32 rates, - struct ieee80211_sub_if_data *sdata, +void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata, + u8 *hw_addr, struct ieee802_11_elems *elems) { struct sta_info *sta; @@ -322,7 +324,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, } rcu_read_lock(); - sta = mesh_peer_init(sdata, hw_addr, rates, elems); + sta = mesh_peer_init(sdata, hw_addr, elems); if (!sta) goto out; @@ -479,7 +481,6 @@ void mesh_plink_block(struct sta_info *sta) void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { - struct ieee80211_local *local = sdata->local; struct ieee802_11_elems elems; struct sta_info *sta; enum plink_event event; @@ -488,7 +489,6 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m bool deactivated, matches_local = true; u8 ie_len; u8 *baseaddr; - u32 rates, basic_rates = 0; __le16 plid, llid, reason; #ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG static const char *mplstates[] = { @@ -583,11 +583,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m /* Now we will figure out the appropriate event... */ event = PLINK_UNDEFINED; - rates = ieee80211_sta_get_rates(local, &elems, - rx_status->band, &basic_rates); - if (ftype != WLAN_SP_MESH_PEERING_CLOSE && - (!mesh_matches_local(&elems, sdata, basic_rates))) { + !mesh_matches_local(sdata, &elems)) { matches_local = false; switch (ftype) { case WLAN_SP_MESH_PEERING_OPEN: @@ -660,7 +657,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m if (event == OPN_ACPT) { /* allocate sta entry if necessary and update info */ - sta = mesh_peer_init(sdata, mgmt->sa, rates, &elems); + sta = mesh_peer_init(sdata, mgmt->sa, &elems); if (!sta) { mpl_dbg("Mesh plink: failed to init peer!\n"); rcu_read_unlock(); -- 2.7.4