[PATCH] wlcore: disable multicast filter in AP mode

[Iain Hunter <drhunter95@gmail.com>]

Enable AP support for allmulticast for MDNS It can be enabled by bringing

up the interface with ip command with argument allmulticast on  
Signed-off-by: Iain Hunter <i-hunter1@ti.com>
---
PATCH v2: resumbitting to handle error return value
 drivers/net/wireless/ti/wlcore/main.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3241e9eba73..4fabbb486e7 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -3281,6 +3281,21 @@ static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
 			if (ret < 0)
 				goto out_sleep;
 		}
+
+        /*
+         * If interface in AP mode and created with allmulticast then disable
+         * the firmware filters so that all multicast packets are passed
+         * This is mandatory for MDNS based discovery protocols 
+         */
+ 		if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
+ 			if (*total & FIF_ALLMULTI) {
+				ret = wl1271_acx_group_address_tbl(wl, wlvif,
+								   false,
+								   NULL, 0);
+			    if (ret < 0)
+				   goto out_sleep;
+                }
+           }
 	}
 
 	/*
-- 
2.11.0