[PATCH] tun: fix inability to set offloads after disabling them via ethtool

[Yaroslav Isakov]

Added missing logic in tun driver, which prevents apps to set
offloads using tun ioctl, if offloads were previously disabled via ethtool

Signed-of-by: Yaroslav Isakov (yaroslav.isa...@gmail.com)
---
 drivers/net/tun.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 34cc3c5..cc88cd7 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1931,6 +1931,8 @@ static int set_offload(struct tun_struct *tun, unsigned 
long arg)
                return -EINVAL;
 
        tun->set_features = features;
+       tun->dev->wanted_features &= ~TUN_USER_FEATURES;
+       tun->dev->wanted_features |= features;
        netdev_update_features(tun->dev);
 
        return 0;
-- 
2.10.2