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Date:   Sun,  8 Mar 2020 13:47:06 +0000
From:   Taehee Yoo <>
Subject: [PATCH net-next] net: rmnet: set NETIF_F_LLTX flag

The rmnet_vnd_setup(), which is the callback of ->ndo_start_xmit() is
allowed to call concurrently because it uses RCU protected data.
So, it doesn't need tx lock.

Signed-off-by: Taehee Yoo <>
 drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
index d7c52e398e4a..d58b51d277f1 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
@@ -212,6 +212,8 @@ void rmnet_vnd_setup(struct net_device *rmnet_dev)
 	rmnet_dev->needs_free_netdev = true;
 	rmnet_dev->ethtool_ops = &rmnet_ethtool_ops;
+	rmnet_dev->features |= NETIF_F_LLTX;
 	/* This perm addr will be used as interface identifier by IPv6 */
 	rmnet_dev->addr_assign_type = NET_ADDR_RANDOM;

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