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authorJohannes Berg <johannes.berg@intel.com>2011-11-04 11:18:21 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-11-09 16:13:54 -0500
commite247bd9068e3e86c3571147c128883596ace9d05 (patch)
tree5639065f2b0bfe4cb7389a75e274bc8a53efd75f /include
parente7f4a940bb5eecd07cf0039e7d9201badc332ae0 (diff)
cfg80211/mac80211: allow management TX to not wait for ACK
For probe responses it can be useful to not wait for ACK to avoid retransmissions if the station that sent the probe is already on the next channel, so allow userspace to request not caring about the ACK with a new nl80211 flag. Since mac80211 needs to be updated for the new function prototype anyway implement it right away -- it's just a few lines of code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nl80211.h7
-rw-r--r--include/net/cfg80211.h2
2 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 09474ab7de8c..165e16fc7af1 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1151,6 +1151,11 @@ enum nl80211_commands {
* with support for the features listed in this attribute, see
* &enum nl80211_ap_sme_features.
*
+ * @NL80211_ATTR_DONT_WAIT_FOR_ACK: Used with %NL80211_CMD_FRAME, this tells
+ * the driver to not wait for an acknowledgement. Note that due to this,
+ * it will also not give a status callback nor return a cookie. This is
+ * mostly useful for probe responses to save airtime.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1381,6 +1386,8 @@ enum nl80211_attrs {
NL80211_ATTR_DEVICE_AP_SME,
+ NL80211_ATTR_DONT_WAIT_FOR_ACK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index be3535f0895e..00287bdef919 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1588,7 +1588,7 @@ struct cfg80211_ops {
enum nl80211_channel_type channel_type,
bool channel_type_valid, unsigned int wait,
const u8 *buf, size_t len, bool no_cck,
- u64 *cookie);
+ bool dont_wait_for_ack, u64 *cookie);
int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
struct net_device *dev,
u64 cookie);