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authorJohannes Berg <johannes.berg@intel.com>2012-07-30 15:11:56 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-08-20 14:13:46 +0200
commitdcf33963c48e1959c83fda84e336dbb000eefa3f (patch)
tree9dac796cf1e165a75ab1b2e850b4ddc5a27d40f5
parentfe94fe05e9fb7c1bea482d1b0fd09029a711cce2 (diff)
downloadlinux-dcf33963c48e1959c83fda84e336dbb000eefa3f.tar.bz2
mac80211: clean up ieee80211_subif_start_xmit
There's no need to carry around a return value that is always NETDEV_TX_OK anyway. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--net/mac80211/tx.c23
1 files changed, 6 insertions, 17 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 2d2f45ecca4d..3b807bcb8fc9 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1719,7 +1719,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info;
- int ret = NETDEV_TX_BUSY, head_need;
+ int head_need;
u16 ethertype, hdrlen, meshhdrlen = 0;
__le16 fc;
struct ieee80211_hdr hdr;
@@ -1735,10 +1735,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
u32 info_flags = 0;
u16 info_id = 0;
- if (unlikely(skb->len < ETH_HLEN)) {
- ret = NETDEV_TX_OK;
+ if (unlikely(skb->len < ETH_HLEN))
goto fail;
- }
/* convert Ethernet header to proper 802.11 header (based on
* operation mode) */
@@ -1786,7 +1784,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
/* Do not send frames with mesh_ttl == 0 */
sdata->u.mesh.mshstats.dropped_frames_ttl++;
- ret = NETDEV_TX_OK;
goto fail;
}
rcu_read_lock();
@@ -1879,10 +1876,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
if (tdls_direct) {
/* link during setup - throw out frames to peer */
- if (!tdls_auth) {
- ret = NETDEV_TX_OK;
+ if (!tdls_auth)
goto fail;
- }
/* DA SA BSSID */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1916,7 +1911,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
hdrlen = 24;
break;
default:
- ret = NETDEV_TX_OK;
goto fail;
}
@@ -1961,7 +1955,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
- ret = NETDEV_TX_OK;
goto fail;
}
@@ -2016,10 +2009,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
skb = skb_clone(skb, GFP_ATOMIC);
kfree_skb(tmp_skb);
- if (!skb) {
- ret = NETDEV_TX_OK;
+ if (!skb)
goto fail;
- }
}
hdr.frame_control = fc;
@@ -2122,10 +2113,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
fail:
- if (ret == NETDEV_TX_OK)
- dev_kfree_skb(skb);
-
- return ret;
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
}