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| author | Johannes Berg <johannes.berg@intel.com> | 2015-11-24 14:25:49 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-12-04 14:43:32 +0100 |
| commit | 5ee00dbd52c57f37d74306ce6e8db26171f599b3 (patch) | |
| tree | cd4ea4db19e3dde3b2bdb6159e66e7fdc53971db /net/mac80211/cfg.c | |
| parent | a2fcfccbad43e413de7e7ac39879ba91548f06c1 (diff) | |
| download | linux-5ee00dbd52c57f37d74306ce6e8db26171f599b3.tar.gz linux-5ee00dbd52c57f37d74306ce6e8db26171f599b3.tar.bz2 linux-5ee00dbd52c57f37d74306ce6e8db26171f599b3.zip | |
mac80211: simplify ack_skb handling
Since the cookie is assigned inside ieee80211_make_ack_skb()
now, we no longer need to return the ack_skb as the cookie
and can simplify the function's return and the callers. Also
rename it to ieee80211_attach_ack_skb() to more accurately
reflect its purpose.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index b8ef33e62851..2d1c4c35186d 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2987,9 +2987,8 @@ u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) return local->roc_cookie_counter; } -struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local, - struct sk_buff *skb, u64 *cookie, - gfp_t gfp) +int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, + u64 *cookie, gfp_t gfp) { unsigned long spin_flags; struct sk_buff *ack_skb; @@ -2997,7 +2996,7 @@ struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local, ack_skb = skb_copy(skb, gfp); if (!ack_skb) - return ERR_PTR(-ENOMEM); + return -ENOMEM; spin_lock_irqsave(&local->ack_status_lock, spin_flags); id = idr_alloc(&local->ack_status_frames, ack_skb, @@ -3006,7 +3005,7 @@ struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local, if (id < 0) { kfree_skb(ack_skb); - return ERR_PTR(-ENOMEM); + return -ENOMEM; } IEEE80211_SKB_CB(skb)->ack_frame_id = id; @@ -3014,7 +3013,7 @@ struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local, *cookie = ieee80211_mgmt_tx_cookie(local); IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; - return ack_skb; + return 0; } static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, @@ -3092,7 +3091,7 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct ieee80211_qos_hdr *nullfunc; - struct sk_buff *skb, *ack_skb; + struct sk_buff *skb; int size = sizeof(*nullfunc); __le16 fc; bool qos; @@ -3160,10 +3159,9 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, if (qos) nullfunc->qos_ctrl = cpu_to_le16(7); - ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC); - if (IS_ERR(ack_skb)) { + ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); + if (ret) { kfree_skb(skb); - ret = PTR_ERR(ack_skb); goto unlock; } |