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drivers/net/wan/lapbether: Added needed_tailroom 

[ Upstream commit 1ee39c1448 ]

The underlying Ethernet device may request necessary tailroom to be
allocated by setting needed_tailroom. This driver should also set
needed_tailroom to request the tailroom needed by the underlying
Ethernet device to be allocated.

Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Xie He 2020-08-21 14:26:59 -07:00 committed by Greg Kroah-Hartman
parent 59d2b1e5cb
commit 0faee7f8c2
1 changed files with 1 additions and 0 deletions
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drivers/net/wan/lapbether.c
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@ -340,6 +340,7 @@ static int lapbeth_new_device(struct net_device *dev)
*/
ndev->needed_headroom = -1 + 3 + 2 + dev->hard_header_len
+ dev->needed_headroom;
ndev->needed_tailroom = dev->needed_tailroom;
lapbeth = netdev_priv(ndev);
lapbeth->axdev = ndev;