kernel.git/net/mac80211/mesh_pathtbl.c, branch linux-4.6.y

mac80211: Unify mesh and mpp path removal function

2016-02-24T08:04:36Z

mpp_path_del() and mesh_path_del() are mostly the same function. Move common code into a new static function. Acked-by: Bob Copeland Signed-off-by: Henning Rogge Signed-off-by: Johannes Berg

mac80211: let unused MPP table entries timeout

2016-02-24T08:04:35Z

Remember the last time when a mpp table entry is used for rx or tx and remove them after MESH_PATH_EXPIRE time. Acked-by: Bob Copeland Signed-off-by: Henning Rogge Signed-off-by: Johannes Berg

mac80211: Remove MPP table entries with MPath

2016-02-24T08:04:35Z

Make the mesh_path_del() function remove all mpp table entries that are proxied by the removed mesh path. Acked-by: Bob Copeland Signed-off-by: Henning Rogge Signed-off-by: Johannes Berg

mac80211: mesh: drop constant field mean_chain_len

2016-02-24T08:04:29Z

The mean_chain_len field in struct mesh_table is copied whenever a new mesh table is allocated, but only ever has the value 2 and is never otherwise updated, so just remove it and use the related define instead. Signed-off-by: Bob Copeland Signed-off-by: Johannes Berg

mac80211: mesh: print MAC address instead of pointer

2015-12-04T13:43:32Z

There's no point in printing the mpath pointer since it can't be used for anything - print the MAC address instead (like in the forwarding case.) Signed-off-by: Johannes Berg Acked-by: Bob Copeland Signed-off-by: Johannes Berg

mac80211: mesh: fix call_rcu() usage

2015-11-17T14:49:25Z

When using call_rcu(), the called function may be delayed quite significantly, and without a matching rcu_barrier() there's no way to be sure it has finished. Therefore, global state that could be gone/freed/reused should never be touched in the callback. Fix this in mesh by moving the atomic_dec() into the caller; that's not really a problem since we already unlinked the path and it will be destroyed anyway. This fixes a crash Jouni observed when running certain tests in a certain order, in which the mesh interface was torn down, the memory reused for a function pointer (work struct) and running that then crashed since the pointer had been decremented by 1, resulting in an invalid instruction byte stream. Cc: stable@vger.kernel.org Fixes: eb2b9311fd00 ("mac80211: mesh path table implementation") Reported-by: Jouni Malinen Signed-off-by: Johannes Berg

mac80211: implement cfg80211_ops to query mesh proxy path table

2014-10-09T09:19:07Z

Implement get_mpp and dump_mpp cfg80211_ops to export the content of the 802.11s mesh proxy path table to userspace. Signed-off-by: Henning Rogge Signed-off-by: Johannes Berg

mac80211: Replace rcu_dereference() with rcu_access_pointer()

2014-08-27T10:14:10Z

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 Signed-off-by: Johannes Berg

mac80211: remove BUG_ON usage

2014-04-29T15:59:27Z

These BUG_ON statements should never trigger, but in the unlikely event that somebody does manage don't stop everything but simply exit the code path with an error. Leave the one BUG_ON where changing it would result in a NULL pointer dereference. Signed-off-by: Johannes Berg

mac80211: use put_unaligned_le in mesh when necessary

2013-11-25T19:51:55Z

Use put_unaligned_le16 and put_unaligned_le32 for mesh_path_error_tx and mesh_path_sel_frame_tx. Signed-off-by: Chun-Yeow Yeoh Signed-off-by: Johannes Berg