mac80211: mesh_plink: use get_unaligned_le16 instead of memcpy

Use get_unaligned_le16 to access llid/plid.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 8d67c1ebfbda..8f0887fc7128 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -1001,7 +1001,6 @@ mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
         enum ieee80211_self_protected_actioncode ftype;
         u32 changed = 0;
         u8 ie_len = elems->peering_len;
-        __le16 _plid, _llid;
         u16 plid, llid = 0;
 
         if (!elems->peering) {
@@ -1036,13 +1035,10 @@ mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
         /* Note the lines below are correct, the llid in the frame is the plid
          * from the point of view of this host.
          */
-        memcpy(&_plid, PLINK_GET_LLID(elems->peering), sizeof(__le16));
-        plid = le16_to_cpu(_plid);
+        plid = get_unaligned_le16(PLINK_GET_LLID(elems->peering));
         if (ftype == WLAN_SP_MESH_PEERING_CONFIRM ||
-            (ftype == WLAN_SP_MESH_PEERING_CLOSE && ie_len == 8)) {
-                memcpy(&_llid, PLINK_GET_PLID(elems->peering), sizeof(__le16));
-                llid = le16_to_cpu(_llid);
-        }
+            (ftype == WLAN_SP_MESH_PEERING_CLOSE && ie_len == 8))
+                llid = get_unaligned_le16(PLINK_GET_PLID(elems->peering));
 
         /* WARNING: Only for sta pointer, is dropped & re-acquired */
         rcu_read_lock();