From a16411f33d08963cd9ae5c9d2edab5685be238fa Mon Sep 17 00:00:00 2001
From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Date: Mon, 22 Oct 2018 21:51:36 +0300
Subject: [PATCH 4/4] net: ethernet: ti: cpsw: unsync mcast entries while
switch promisc mode
Git-commit: 9737cc99dd14b5b8b9d267618a6061feade8ea68
Patch-mainline: v4.20-rc1
References: git-fixes
After flushing all mcast entries from the table, the ones contained in
mc list of ndev are not restored when promisc mode is toggled off,
because they are considered as synched with ALE, thus, in order to
restore them after promisc mode - reset syncing info. This fix
touches only switch mode devices, including single port boards
like Beagle Bone.
Fixes: commit 5da1948969bc
("net: ethernet: ti: cpsw: fix lost of mcast packets while rx_mode update")
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/ti/cpsw.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 6b8566ca184d..b45f3175bede 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -601,6 +601,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
/* Clear all mcast from ALE */
cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS, -1);
+ __dev_mc_unsync(ndev, NULL);
/* Flood All Unicast Packets to Host port */
cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1);
--
2.16.4