Merge remote-tracking branches 'asoc/fix/blackfin', 'asoc/fix/da9055', 'asoc/fix...

[firefly-linux-kernel-4.4.55.git] / net / wireless / nl80211.c

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7a742594916e177461a5374693e78c07bcbce09b..4fe2e6e2bc7635daef9aee5752ed97eafb29012a 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1719,9 +1719,10 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
                                 * We can then retry with the larger buffer.
                                 */
                                if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
-                                   !skb->len &&
+                                   !skb->len && !state->split &&
                                    cb->min_dump_alloc < 4096) {
                                        cb->min_dump_alloc = 4096;
+                                       state->split_start = 0;
                                        rtnl_unlock();
                                        return 1;
                                }
@@ -5244,7 +5245,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
        if (!rdev->ops->scan)
                return -EOPNOTSUPP;
 
-       if (rdev->scan_req) {
+       if (rdev->scan_req || rdev->scan_msg) {
                err = -EBUSY;
                goto unlock;
        }
@@ -10011,40 +10012,31 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
                                NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
-void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
-                           struct wireless_dev *wdev)
+struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
+                                      struct wireless_dev *wdev, bool aborted)
 {
        struct sk_buff *msg;
 
        msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
        if (!msg)
-               return;
+               return NULL;
 
        if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
-                                 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
+                                 aborted ? NL80211_CMD_SCAN_ABORTED :
+                                           NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
                nlmsg_free(msg);
-               return;
+               return NULL;
        }
 
-       genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-                               NL80211_MCGRP_SCAN, GFP_KERNEL);
+       return msg;
 }
 
-void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
-                              struct wireless_dev *wdev)
+void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
+                             struct sk_buff *msg)
 {
-       struct sk_buff *msg;
-
-       msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
        if (!msg)
                return;
 
-       if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
-                                 NL80211_CMD_SCAN_ABORTED) < 0) {
-               nlmsg_free(msg);
-               return;
-       }
-
        genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
                                NL80211_MCGRP_SCAN, GFP_KERNEL);
 }