mac80211: brcmfmac: fix interfaces management

To work correctly hostapd requires wireless driver to allow interfaces
removal. It was working with brcmfmac only partially. Firmware for
BCM43602 got some special hack (feature?) that allowed removing all
interfaces by disabling mbss mode. It wasn't working with BCM4366
firmware and remaining interfaces were preventing hostapd from starting
again.

Those patches add support for "interface_remove" firmware method which
works with BCM4366 firmware and they make it finally possible to use
BCM4366 & brcmfmac & multiple interfaces.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/351-0021-brcmfmac-use-const-char-for-interface-name-in-brcmf_.patch b/package/kernel/mac80211/patches/351-0021-brcmfmac-use-const-char-for-interface-name-in-brcmf_.patch
new file mode 100644
index 0000000000..dd6bc37a49
--- /dev/null
+++ b/package/kernel/mac80211/patches/351-0021-brcmfmac-use-const-char-for-interface-name-in-brcmf_.patch
@@ -0,0 +1,39 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Fri, 17 Jun 2016 12:48:44 +0200
+Subject: [PATCH] brcmfmac: use const char * for interface name in brcmf_add_if
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This function can work just fine with const pointer, it only calls
+alloc_netdev which take const as well. Moreover it makes this function
+more flexible as some cfg80211 callback may provide const char * as
+well, e.g. add_virtual_intf. This will be needed for more advanced
+interface management.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+@@ -795,7 +795,7 @@ fail:
+ }
+ 
+ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
+-			      bool is_p2pdev, char *name, u8 *mac_addr)
++			      bool is_p2pdev, const char *name, u8 *mac_addr)
+ {
+ 	struct brcmf_if *ifp;
+ 	struct net_device *ndev;
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+@@ -212,7 +212,7 @@ char *brcmf_ifname(struct brcmf_if *ifp)
+ struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx);
+ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
+ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
+-			      bool is_p2pdev, char *name, u8 *mac_addr);
++			      bool is_p2pdev, const char *name, u8 *mac_addr);
+ void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked);
+ void brcmf_txflowblock_if(struct brcmf_if *ifp,
+ 			  enum brcmf_netif_stop_reason reason, bool state);