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mac80211: use compare_ether_addr on MAC addresses instead of memcmp

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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>
This commit is contained in:
Felix Fietkau 2012-03-01 15:22:09 +01:00 • committed by John W. Linville
parent 4d196e4b2f
commit 888d04dfbe
10 changed files with 53 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

14
net/mac80211/mesh_pathtbl.c
View file

@ -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;
}