mac80211: rebase ontop of v4.18.5
[openwrt/staging/wigyori.git] / package / kernel / mac80211 / patches / 861-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch
diff --git a/package/kernel/mac80211/patches/861-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch b/package/kernel/mac80211/patches/861-brcmfmac-workaround-bug-with-some-inconsistent-BSSes.patch
deleted file mode 100644 (file)
index 1345e85..0000000
+++ /dev/null
@@ -1,50 +0,0 @@
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
-Date: Thu, 9 Jul 2015 00:07:59 +0200
-Subject: [PATCH] brcmfmac: workaround bug with some inconsistent BSSes state
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
----
-
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
-@@ -614,9 +614,37 @@ static struct wireless_dev *brcmf_cfg802
-                                                    enum nl80211_iftype type,
-                                                    struct vif_params *params)
- {
-+      struct net_device *dev;
-       struct wireless_dev *wdev;
-       int err;
-+      /*
-+       * There is a bug with in-firmware BSS management. When adding virtual
-+       * interface brcmfmac first tells firmware to create new BSS and then
-+       * it creates new struct net_device.
-+       *
-+       * If creating/registering netdev(ice) fails, BSS remains in some bugged
-+       * state. It conflicts with existing BSSes by overtaking their auth
-+       * requests.
-+       *
-+       * It results in one BSS (addresss X) sending beacons and another BSS
-+       * (address Y) replying to authentication requests. This makes interface
-+       * unusable as AP.
-+       *
-+       * To workaround this bug we may try to guess if register_netdev(ice)
-+       * will fail. The most obvious case is using interface name that already
-+       * exists. This is actually quite likely with brcmfmac & some user space
-+       * scripts as brcmfmac doesn't allow deleting virtual interfaces.
-+       * So this bug can be triggered even by something trivial like:
-+       * iw dev wlan0 delete
-+       * iw phy phy0 interface add wlan0 type __ap
-+       */
-+      dev = dev_get_by_name(&init_net, name);
-+      if (dev) {
-+              dev_put(dev);
-+              return ERR_PTR(-ENFILE);
-+      }
-+
-       brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
-       err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type);
-       if (err) {