6 files changed, 32 insertions, 6 deletions

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 460b12a8ef66..c73582fb9d20 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -238,6 +238,8 @@
  *
  * @NL80211_CMD_GET_SCAN: get scan results
  * @NL80211_CMD_TRIGGER_SCAN: trigger a new scan with the given parameters
+ *      %NL80211_ATTR_TX_NO_CCK_RATE is used to decide whether to send the
+ *      probe requests at CCK rate or not.
  * @NL80211_CMD_NEW_SCAN_RESULTS: scan notification (as a reply to
  *      NL80211_CMD_GET_SCAN and on the "scan" multicast group)
  * @NL80211_CMD_SCAN_ABORTED: scan was aborted, for unspecified reasons,
@@ -432,6 +434,8 @@
  *      specified using %NL80211_ATTR_DURATION. When called, this operation
  *      returns a cookie (%NL80211_ATTR_COOKIE) that will be included with the
  *      TX status event pertaining to the TX request.
+ *      %NL80211_ATTR_TX_NO_CCK_RATE is used to decide whether to send the
+ *      management frames at CCK rate or not in 2GHz band.
  * @NL80211_CMD_FRAME_WAIT_CANCEL: When an off-channel TX was requested, this
  *      command may be used with the corresponding cookie to cancel the wait
  *      time if it is known that it is no longer necessary.
@@ -1078,6 +1082,13 @@ enum nl80211_commands {
  * @NL80211_ATTR_PMKSA_CANDIDATE: Nested attribute containing the PMKSA caching
  *      candidate information, see &enum nl80211_pmksa_candidate_attr.
  *
+ * @NL80211_ATTR_TX_NO_CCK_RATE: Indicates whether to use CCK rate or not
+ *      for management frames transmission. In order to avoid p2p probe/action
+ *      frames are being transmitted at CCK rate in 2GHz band, the user space
+ *      applications use this attribute.
+ *      This attribute is used with %NL80211_CMD_TRIGGER_SCAN and
+ *      %NL80211_CMD_FRAME commands.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1298,6 +1309,8 @@ enum nl80211_attrs {
 
         NL80211_ATTR_PMKSA_CANDIDATE,
 
+        NL80211_ATTR_TX_NO_CCK_RATE,
+
         /* 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 ccfdf3f63ce5..c1dd56b7cce5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -860,6 +860,7 @@ struct cfg80211_ssid {
  * @wiphy: the wiphy this was for
  * @dev: the interface
  * @aborted: (internal) scan request was notified as aborted
+ * @no_cck: used to send probe requests at non CCK rate in 2GHz band
  */
 struct cfg80211_scan_request {
         struct cfg80211_ssid *ssids;
@@ -874,6 +875,7 @@ struct cfg80211_scan_request {
         struct wiphy *wiphy;
         struct net_device *dev;
         bool aborted;
+        bool no_cck;
 
         /* keep last */
         struct ieee80211_channel *channels[0];
@@ -1560,7 +1562,8 @@ struct cfg80211_ops {
                           struct ieee80211_channel *chan, bool offchan,
                           enum nl80211_channel_type channel_type,
                           bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, u64 *cookie);
+                          const u8 *buf, size_t len, bool no_cck,
+                          u64 *cookie);
         int     (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
                                        struct net_device *dev,
                                        u64 cookie);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b57ddf941e59..9cba0104e291 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1869,7 +1869,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
                              struct ieee80211_channel *chan, bool offchan,
                              enum nl80211_channel_type channel_type,
                              bool channel_type_valid, unsigned int wait,
-                             const u8 *buf, size_t len, u64 *cookie)
+                             const u8 *buf, size_t len, bool no_cck,
+                             u64 *cookie)
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
         struct ieee80211_local *local = sdata->local;
diff --git a/net/wireless/core.h b/net/wireless/core.h
index cb87b8bbceb7..b9ec3061ed72 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -375,7 +375,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
                           struct ieee80211_channel *chan, bool offchan,
                           enum nl80211_channel_type channel_type,
                           bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, u64 *cookie);
+                          const u8 *buf, size_t len, bool no_cck,
+                          u64 *cookie);
 
 /* SME */
 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 61adea540e02..21fc9702f81c 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -900,7 +900,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
                           struct ieee80211_channel *chan, bool offchan,
                           enum nl80211_channel_type channel_type,
                           bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, u64 *cookie)
+                          const u8 *buf, size_t len, bool no_cck,
+                          u64 *cookie)
 {
         struct wireless_dev *wdev = dev->ieee80211_ptr;
         const struct ieee80211_mgmt *mgmt;
@@ -991,7 +992,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
         /* Transmit the Action frame as requested by user space */
         return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, offchan,
                                   channel_type, channel_type_valid,
-                                  wait, buf, len, cookie);
+                                  wait, buf, len, no_cck, cookie);
 }
 
 bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a3e26951fd8b..48c1bf1a142d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -191,6 +191,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
                                          .len = IEEE80211_MAX_DATA_LEN },
         [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
         [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
+        [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
 };
 
 /* policy for the key attributes */
@@ -3620,6 +3621,9 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
                 }
         }
 
+        request->no_cck =
+                nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
+
         request->dev = dev;
         request->wiphy = &rdev->wiphy;
 
@@ -5171,6 +5175,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
         struct sk_buff *msg;
         unsigned int wait = 0;
         bool offchan;
+        bool no_cck;
 
         if (!info->attrs[NL80211_ATTR_FRAME] ||
             !info->attrs[NL80211_ATTR_WIPHY_FREQ])
@@ -5207,6 +5212,8 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
         offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
 
+        no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
+
         freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
         chan = rdev_freq_to_chan(rdev, freq, channel_type);
         if (chan == NULL)
@@ -5227,7 +5234,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
                                     channel_type_valid, wait,
                                     nla_data(info->attrs[NL80211_ATTR_FRAME]),
                                     nla_len(info->attrs[NL80211_ATTR_FRAME]),
-                                    &cookie);
+                                    no_cck, &cookie);
         if (err)
                 goto free_msg;