[PATCH 4.19 26/49] team: set dev->needed_headroom in team_setup_by_port()

[Greg Kroah-Hartman]

From: Eric Dumazet <eduma...@google.com>

commit 89d01748b2354e210b5d4ea47bc25a42a1b42c82 upstream.

Some devices set needed_headroom. If we ignore it, we might
end up crashing in various skb_push() for example in ipgre_header()
since some layers assume enough headroom has been reserved.

Fixes: 1d76efe1577b ("team: add support for non-ethernet devices")
Signed-off-by: Eric Dumazet <eduma...@google.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/team/team.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2086,6 +2086,7 @@ static void team_setup_by_port(struct ne
        dev->header_ops = port_dev->header_ops;
        dev->type = port_dev->type;
        dev->hard_header_len = port_dev->hard_header_len;
+       dev->needed_headroom = port_dev->needed_headroom;
        dev->addr_len = port_dev->addr_len;
        dev->mtu = port_dev->mtu;
        memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);