Fix broadcom-sta on linux >= 3.15

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/net-wireless/broadcom-sta/files/broadcom-sta-6.30.223.141-linux-3.15.patch?view=markup

pkgs/os-specific/linux/broadcom-sta/cfg80211_ibss_joined-channel-parameter.patch

@@ -0,0 +1,17 @@
+Add channel parameter to cfg80211_ibss_joined call
+
+--- a/src/wl/sys/wl_cfg80211_hybrid.c
++++ b/src/wl/sys/wl_cfg80211_hybrid.c
+@@ -1841,7 +1841,12 @@ wl_notify_connect_status(struct wl_cfg80211_priv *wl, struct net_device *ndev,
+ 			wl_get_assoc_ies(wl);
+ 			memcpy(&wl->bssid, &e->addr, ETHER_ADDR_LEN);
+ 			wl_update_bss_info(wl);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0)
+ 			cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid, GFP_KERNEL);
++#else
++			cfg80211_ibss_joined(ndev, (u8 *)&wl->bssid,
++			                     &wl->conf->channel, GFP_KERNEL);
++#endif
+ 			set_bit(WL_STATUS_CONNECTED, &wl->status);
+ 			wl->profile->active = true;
+ 		}

pkgs/os-specific/linux/broadcom-sta/default.nix

@@ -19,6 +19,7 @@ stdenv.mkDerivation {
   patches = [
     ./linux-recent.patch
     ./license.patch
+    ./cfg80211_ibss_joined-channel-parameter.patch
   ];
 
   makeFlags = "KBASE=${kernel.dev}/lib/modules/${kernel.modDirVersion}";