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Diffstat (limited to 'package/kernel/mac80211/patches/subsys/353-mac80211-mesh-drop-redundant-rcu_read_lock-unlock-ca.patch')
-rw-r--r--package/kernel/mac80211/patches/subsys/353-mac80211-mesh-drop-redundant-rcu_read_lock-unlock-ca.patch96
1 files changed, 0 insertions, 96 deletions
diff --git a/package/kernel/mac80211/patches/subsys/353-mac80211-mesh-drop-redundant-rcu_read_lock-unlock-ca.patch b/package/kernel/mac80211/patches/subsys/353-mac80211-mesh-drop-redundant-rcu_read_lock-unlock-ca.patch
deleted file mode 100644
index 86300be4ed..0000000000
--- a/package/kernel/mac80211/patches/subsys/353-mac80211-mesh-drop-redundant-rcu_read_lock-unlock-ca.patch
+++ /dev/null
@@ -1,96 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sat, 16 Mar 2019 17:43:58 +0100
-Subject: [PATCH] mac80211: mesh: drop redundant rcu_read_lock/unlock calls
-
-The callers of these functions are all within RCU locked sections
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/net/mac80211/mesh_hwmp.c
-+++ b/net/mac80211/mesh_hwmp.c
-@@ -1112,16 +1112,13 @@ int mesh_nexthop_resolve(struct ieee8021
- struct mesh_path *mpath;
- struct sk_buff *skb_to_free = NULL;
- u8 *target_addr = hdr->addr3;
-- int err = 0;
-
- /* Nulls are only sent to peers for PS and should be pre-addressed */
- if (ieee80211_is_qos_nullfunc(hdr->frame_control))
- return 0;
-
-- rcu_read_lock();
-- err = mesh_nexthop_lookup(sdata, skb);
-- if (!err)
-- goto endlookup;
-+ if (!mesh_nexthop_lookup(sdata, skb))
-+ return 0;
-
- /* no nexthop found, start resolving */
- mpath = mesh_path_lookup(sdata, target_addr);
-@@ -1129,8 +1126,7 @@ int mesh_nexthop_resolve(struct ieee8021
- mpath = mesh_path_add(sdata, target_addr);
- if (IS_ERR(mpath)) {
- mesh_path_discard_frame(sdata, skb);
-- err = PTR_ERR(mpath);
-- goto endlookup;
-+ return PTR_ERR(mpath);
- }
- }
-
-@@ -1143,13 +1139,10 @@ int mesh_nexthop_resolve(struct ieee8021
- info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
- ieee80211_set_qos_hdr(sdata, skb);
- skb_queue_tail(&mpath->frame_queue, skb);
-- err = -ENOENT;
- if (skb_to_free)
- mesh_path_discard_frame(sdata, skb_to_free);
-
--endlookup:
-- rcu_read_unlock();
-- return err;
-+ return -ENOENT;
- }
-
- /**
-@@ -1169,13 +1162,10 @@ int mesh_nexthop_lookup(struct ieee80211
- struct sta_info *next_hop;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u8 *target_addr = hdr->addr3;
-- int err = -ENOENT;
-
-- rcu_read_lock();
- mpath = mesh_path_lookup(sdata, target_addr);
--
- if (!mpath || !(mpath->flags & MESH_PATH_ACTIVE))
-- goto endlookup;
-+ return -ENOENT;
-
- if (time_after(jiffies,
- mpath->exp_time -
-@@ -1190,12 +1180,10 @@ int mesh_nexthop_lookup(struct ieee80211
- memcpy(hdr->addr1, next_hop->sta.addr, ETH_ALEN);
- memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
- ieee80211_mps_set_frame_flags(sdata, next_hop, hdr);
-- err = 0;
-+ return 0;
- }
-
--endlookup:
-- rcu_read_unlock();
-- return err;
-+ return -ENOENT;
- }
-
- void mesh_path_timer(struct timer_list *t)
---- a/net/mac80211/mesh_pathtbl.c
-+++ b/net/mac80211/mesh_pathtbl.c
-@@ -219,7 +219,7 @@ static struct mesh_path *mpath_lookup(st
- {
- struct mesh_path *mpath;
-
-- mpath = rhashtable_lookup_fast(&tbl->rhead, dst, mesh_rht_params);
-+ mpath = rhashtable_lookup(&tbl->rhead, dst, mesh_rht_params);
-
- if (mpath && mpath_expired(mpath)) {
- spin_lock_bh(&mpath->state_lock);