nl80211: move scan API to wdev

The new P2P Device will have to be able to scan for
P2P search, so move scanning to use struct wireless_dev
instead of struct net_device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 17 insertions, 14 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6a9a1d7f51d1..6472c7f928dc 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4130,7 +4130,7 @@ static int validate_scan_freqs(struct nlattr *freqs)
 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 {
         struct cfg80211_registered_device *rdev = info->user_ptr[0];
-        struct net_device *dev = info->user_ptr[1];
+        struct wireless_dev *wdev = info->user_ptr[1];
         struct cfg80211_scan_request *request;
         struct nlattr *attr;
         struct wiphy *wiphy;
@@ -4290,15 +4290,16 @@ 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->wdev = wdev;
         request->wiphy = &rdev->wiphy;
 
         rdev->scan_req = request;
-        err = rdev->ops->scan(&rdev->wiphy, dev, request);
+        err = rdev->ops->scan(&rdev->wiphy, request);
 
         if (!err) {
-                nl80211_send_scan_start(rdev, dev);
-                dev_hold(dev);
+                nl80211_send_scan_start(rdev, wdev);
+                if (wdev->netdev)
+                        dev_hold(wdev->netdev);
         } else {
  out_free:
                 rdev->scan_req = NULL;
@@ -7066,7 +7067,7 @@ static struct genl_ops nl80211_ops[] = {
                 .doit = nl80211_trigger_scan,
                 .policy = nl80211_policy,
                 .flags = GENL_ADMIN_PERM,
-                .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+                .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
                                   NL80211_FLAG_NEED_RTNL,
         },
         {
@@ -7458,7 +7459,7 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
 
 static int nl80211_send_scan_msg(struct sk_buff *msg,
                                  struct cfg80211_registered_device *rdev,
-                                 struct net_device *netdev,
+                                 struct wireless_dev *wdev,
                                  u32 pid, u32 seq, int flags,
                                  u32 cmd)
 {
@@ -7469,7 +7470,9 @@ static int nl80211_send_scan_msg(struct sk_buff *msg,
                 return -1;
 
         if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-            nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
+            (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
+                                         wdev->netdev->ifindex)) ||
+            nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
                 goto nla_put_failure;
 
         /* ignore errors and send incomplete event anyway */
@@ -7506,7 +7509,7 @@ nl80211_send_sched_scan_msg(struct sk_buff *msg,
 }
 
 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
-                             struct net_device *netdev)
+                             struct wireless_dev *wdev)
 {
         struct sk_buff *msg;
 
@@ -7514,7 +7517,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
         if (!msg)
                 return;
 
-        if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
+        if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
                                   NL80211_CMD_TRIGGER_SCAN) < 0) {
                 nlmsg_free(msg);
                 return;
@@ -7525,7 +7528,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 }
 
 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
-                            struct net_device *netdev)
+                            struct wireless_dev *wdev)
 {
         struct sk_buff *msg;
 
@@ -7533,7 +7536,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
         if (!msg)
                 return;
 
-        if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
+        if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
                                   NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
                 nlmsg_free(msg);
                 return;
@@ -7544,7 +7547,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 }
 
 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
-                               struct net_device *netdev)
+                               struct wireless_dev *wdev)
 {
         struct sk_buff *msg;
 
@@ -7552,7 +7555,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
         if (!msg)
                 return;
 
-        if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
+        if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
                                   NL80211_CMD_SCAN_ABORTED) < 0) {
                 nlmsg_free(msg);
                 return;