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mac80211: simplify TDLS RA lookup 

smatch pointed out that the second check of "tdls_auth" was
pointless since if it was true, we returned from the function
already. We can further simplify the code by moving the first
check (if it's a TDLS peer at all) into the outer if, to only
handle that inside. This simplifies the control flow here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
hifive-unleashed-5.1
Johannes Berg 2016-09-13 08:28:22 +02:00
parent 8d51dbb8c7
commit 11d62caf93
1 changed files with 4 additions and 11 deletions
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15
net/mac80211/tx.c
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@ -2263,15 +2263,9 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
case NL80211_IFTYPE_STATION:
if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) {
sta = sta_info_get(sdata, skb->data);
if (sta) {
bool tdls_peer, tdls_auth;
tdls_peer = test_sta_flag(sta,
WLAN_STA_TDLS_PEER);
tdls_auth = test_sta_flag(sta,
WLAN_STA_TDLS_PEER_AUTH);
if (tdls_peer && tdls_auth) {
if (sta && test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
if (test_sta_flag(sta,
WLAN_STA_TDLS_PEER_AUTH)) {
*sta_out = sta;
return 0;
}
@ -2283,8 +2277,7 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
* after a TDLS sta is removed due to being
* unreachable.
*/
if (tdls_peer && !tdls_auth &&
!ieee80211_is_tdls_setup(skb))
if (!ieee80211_is_tdls_setup(skb))
return -EINVAL;
}