diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2012-03-01 15:22:09 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-03-05 15:38:31 -0500 |
| commit | 888d04dfbe7e09f930fdaafb257cce2c54c9c3f3 (patch) | |
| tree | cdf0c4d4008860fd91db31bcc620a8ecd3d95bc1 /net/mac80211/mesh_pathtbl.c | |
| parent | 4d196e4b2ffd734393b54f351507462f19d737b5 (diff) | |
| download | lwn-888d04dfbe7e09f930fdaafb257cce2c54c9c3f3.tar.gz lwn-888d04dfbe7e09f930fdaafb257cce2c54c9c3f3.zip | |
mac80211: use compare_ether_addr on MAC addresses instead of memcmp
Because of the constant size and guaranteed 16 bit alignment, the inline
compare_ether_addr function is much cheaper than calling memcmp.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh_pathtbl.c')
| -rw-r--r-- | net/mac80211/mesh_pathtbl.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index dc51669e67d8..157642f780b9 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -348,7 +348,7 @@ static struct mesh_path *mpath_lookup(struct mesh_table *tbl, u8 *dst, hlist_for_each_entry_rcu(node, n, bucket, list) { mpath = node->mpath; if (mpath->sdata == sdata && - memcmp(dst, mpath->dst, ETH_ALEN) == 0) { + compare_ether_addr(dst, mpath->dst) == 0) { if (MPATH_EXPIRED(mpath)) { spin_lock_bh(&mpath->state_lock); mpath->flags &= ~MESH_PATH_ACTIVE; @@ -523,7 +523,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) int err = 0; u32 hash_idx; - if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0) + if (compare_ether_addr(dst, sdata->vif.addr) == 0) /* never add ourselves as neighbours */ return -ENOTSUPP; @@ -564,7 +564,8 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { mpath = node->mpath; - if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0) + if (mpath->sdata == sdata && + compare_ether_addr(dst, mpath->dst) == 0) goto err_exists; } @@ -655,7 +656,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) int err = 0; u32 hash_idx; - if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0) + if (compare_ether_addr(dst, sdata->vif.addr) == 0) /* never add ourselves as neighbours */ return -ENOTSUPP; @@ -692,7 +693,8 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { mpath = node->mpath; - if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0) + if (mpath->sdata == sdata && + compare_ether_addr(dst, mpath->dst) == 0) goto err_exists; } @@ -886,7 +888,7 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) hlist_for_each_entry(node, n, bucket, list) { mpath = node->mpath; if (mpath->sdata == sdata && - memcmp(addr, mpath->dst, ETH_ALEN) == 0) { + compare_ether_addr(addr, mpath->dst) == 0) { __mesh_path_del(tbl, node); goto enddel; } |