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[85.204.121.218]) by smtp.gmail.com with ESMTPSA id t17sm3977910ljc.88.2019.11.15.05.20.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2019 05:20:39 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id F14BB1818C6; Fri, 15 Nov 2019 14:20:37 +0100 (CET) From: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= To: Johannes Berg Cc: linux-wireless@vger.kernel.org, make-wifi-fast@lists.bufferbloat.net, ath10k@lists.infradead.org, John Crispin , Lorenzo Bianconi , Felix Fietkau , Kan Yan , Rajkumar Manoharan , Kevin Hayes Date: Fri, 15 Nov 2019 14:20:37 +0100 Message-ID: <157382403786.580235.15008951293054113025.stgit@toke.dk> In-Reply-To: <157382403672.580235.12525941420808058808.stgit@toke.dk> References: <157382403672.580235.12525941420808058808.stgit@toke.dk> User-Agent: StGit/0.21 MIME-Version: 1.0 X-MC-Unique: iC7CeREaNh-qaSbFpVM99g-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Subject: [Make-wifi-fast] [PATCH v9 1/4] mac80211: Add new sta_info getter by sta/vif addrs X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Nov 2019 13:20:45 -0000 From: Toke H=C3=B8iland-J=C3=B8rgensen In ieee80211_tx_status() we don't have an sdata struct when looking up the destination sta. Instead, we just do a lookup by the vif addr that is the source of the packet being completed. Factor this out into a new sta_info getter helper, since we need to use it for accounting AQL as well. Signed-off-by: Toke H=C3=B8iland-J=C3=B8rgensen --- net/mac80211/sta_info.c | 20 ++++++++++++++++++++ net/mac80211/sta_info.h | 3 +++ net/mac80211/status.c | 10 ++-------- 3 files changed, 25 insertions(+), 8 deletions(-) diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index bd11fef2139f..465d83b13582 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -210,6 +210,26 @@ struct sta_info *sta_info_get_bss(struct ieee80211_sub= _if_data *sdata, =09return NULL; } =20 +struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local, +=09=09=09=09 const u8 *sta_addr, const u8 *vif_addr) +{ +=09struct rhlist_head *tmp; +=09struct sta_info *sta; + +=09rcu_read_lock(); +=09for_each_sta_info(local, sta_addr, sta, tmp) { +=09=09if (ether_addr_equal(vif_addr, sta->sdata->vif.addr)) { +=09=09=09rcu_read_unlock(); +=09=09=09/* this is safe as the caller must already hold +=09=09=09 * another rcu read section or the mutex +=09=09=09 */ +=09=09=09return sta; +=09=09} +=09} +=09rcu_read_unlock(); +=09return NULL; +} + struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, =09=09=09=09 int idx) { diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 369c2dddce52..80e76569144e 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -725,6 +725,9 @@ struct sta_info *sta_info_get(struct ieee80211_sub_if_d= ata *sdata, struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, =09=09=09=09 const u8 *addr); =20 +struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local, +=09=09=09=09 const u8 *sta_addr, const u8 *vif_addr); + #define for_each_sta_info(local, _addr, _sta, _tmp)=09=09=09\ =09rhl_for_each_entry_rcu(_sta, _tmp,=09=09=09=09\ =09=09=09 sta_info_hash_lookup(local, _addr), hash_node) diff --git a/net/mac80211/status.c b/net/mac80211/status.c index ab8ba5835ca0..0e51def35b8a 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -1073,19 +1073,13 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, s= truct sk_buff *skb) =09=09.skb =3D skb, =09=09.info =3D IEEE80211_SKB_CB(skb), =09}; -=09struct rhlist_head *tmp; =09struct sta_info *sta; =20 =09rcu_read_lock(); =20 -=09for_each_sta_info(local, hdr->addr1, sta, tmp) { -=09=09/* skip wrong virtual interface */ -=09=09if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr)) -=09=09=09continue; - +=09sta =3D sta_info_get_by_addrs(local, hdr->addr1, hdr->addr2); +=09if (sta) =09=09status.sta =3D &sta->sta; -=09=09break; -=09} =20 =09__ieee80211_tx_status(hw, &status); =09rcu_read_unlock();