diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-11-29 13:00:10 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-11-30 13:41:27 +0100 |
| commit | b9a9ada14aab17f08c1d9735601f1097cdcfc6de (patch) | |
| tree | 47d823b696f262c53d5f52ef60bfb143b8444fa0 /net/mac80211/util.c | |
| parent | c604b9f219422e969fe371cc7259de34c3c5601d (diff) | |
| download | linux-0-day-b9a9ada14aab17f08c1d9735601f1097cdcfc6de.tar.gz linux-0-day-b9a9ada14aab17f08c1d9735601f1097cdcfc6de.tar.xz | |
mac80211: remove probe response temporary buffer allocation
Instead of allocating a temporary buffer to build IEs
build them right into the SKB.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index f119b1b6c1a70..41c9841614b85 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1239,14 +1239,8 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - size_t buf_len; - u8 *buf; u8 chan_no; - - /* FIXME: come up with a proper value */ - buf = kmalloc(200 + ie_len, GFP_KERNEL); - if (!buf) - return NULL; + int ies_len; /* * Do not send DS Channel parameter for directed probe requests @@ -1258,15 +1252,16 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, else chan_no = ieee80211_frequency_to_channel(chan->center_freq); - buf_len = ieee80211_build_preq_ies(local, buf, 200 + ie_len, - ie, ie_len, chan->band, - ratemask, chan_no); - skb = ieee80211_probereq_get(&local->hw, &sdata->vif, - ssid, ssid_len, - buf, buf_len); + ssid, ssid_len, 100 + ie_len); if (!skb) - goto out; + return NULL; + + ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), + skb_tailroom(skb), + ie, ie_len, chan->band, + ratemask, chan_no); + skb_put(skb, ies_len); if (dst) { mgmt = (struct ieee80211_mgmt *) skb->data; @@ -1276,9 +1271,6 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - out: - kfree(buf); - return skb; } |