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Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c39
1 files changed, 24 insertions, 15 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5b659068b020..0ef09415c89a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -196,6 +196,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
[NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
[NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
+ [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
};
/* policy for the key attributes */
@@ -5282,10 +5283,11 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
int err;
void *hdr;
u64 cookie;
- struct sk_buff *msg;
+ struct sk_buff *msg = NULL;
unsigned int wait = 0;
- bool offchan;
- bool no_cck;
+ bool offchan, no_cck, dont_wait_for_ack;
+
+ dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
if (!info->attrs[NL80211_ATTR_FRAME] ||
!info->attrs[NL80211_ATTR_WIPHY_FREQ])
@@ -5329,29 +5331,36 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
if (chan == NULL)
return -EINVAL;
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
+ if (!dont_wait_for_ack) {
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
- hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_FRAME);
+ hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+ NL80211_CMD_FRAME);
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto free_msg;
+ if (IS_ERR(hdr)) {
+ err = PTR_ERR(hdr);
+ goto free_msg;
+ }
}
+
err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
channel_type_valid, wait,
nla_data(info->attrs[NL80211_ATTR_FRAME]),
nla_len(info->attrs[NL80211_ATTR_FRAME]),
- no_cck, &cookie);
+ no_cck, dont_wait_for_ack, &cookie);
if (err)
goto free_msg;
- NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
+ if (msg) {
+ NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
- genlmsg_end(msg, hdr);
- return genlmsg_reply(msg, info);
+ genlmsg_end(msg, hdr);
+ return genlmsg_reply(msg, info);
+ }
+
+ return 0;
nla_put_failure:
err = -ENOBUFS;