mac80211: Replace rcu_dereference() with rcu_access_pointer()
The "rcu_dereference()" calls are used directly in conditions. Since their return values are never dereferenced it is recommended to use "rcu_access_pointer()" instead of "rcu_dereference()". Therefore, this patch makes the replacements. The following Coccinelle semantic patch was used: @@ @@ ( if( (<+... - rcu_dereference + rcu_access_pointer (...) ...+>)) {...} | while( (<+... - rcu_dereference + rcu_access_pointer (...) ...+>)) {...} ) Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -729,7 +729,7 @@ void mesh_plink_broken(struct sta_info *sta)
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tbl = rcu_dereference(mesh_paths);
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for_each_mesh_entry(tbl, node, i) {
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mpath = node->mpath;
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if (rcu_dereference(mpath->next_hop) == sta &&
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if (rcu_access_pointer(mpath->next_hop) == sta &&
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mpath->flags & MESH_PATH_ACTIVE &&
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!(mpath->flags & MESH_PATH_FIXED)) {
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spin_lock_bh(&mpath->state_lock);
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@ -794,7 +794,7 @@ void mesh_path_flush_by_nexthop(struct sta_info *sta)
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tbl = resize_dereference_mesh_paths();
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for_each_mesh_entry(tbl, node, i) {
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mpath = node->mpath;
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if (rcu_dereference(mpath->next_hop) == sta) {
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if (rcu_access_pointer(mpath->next_hop) == sta) {
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spin_lock(&tbl->hashwlock[i]);
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__mesh_path_del(tbl, node);
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spin_unlock(&tbl->hashwlock[i]);
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