drivers/net/wan/hdlc_cisco: Add hard_header_len

[ Upstream commit 1a545ebe380bf4c1433e3c136e35a77764fda5ad ]

This driver didn't set hard_header_len. This patch sets hard_header_len
for it according to its header_ops->create function.

This driver's header_ops->create function (cisco_hard_header) creates
a header of (struct hdlc_header), so hard_header_len should be set to
sizeof(struct hdlc_header).

Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index 320039d329c7d17a5473d17d12e77e244a94a79b..c169a26e5359a2d993de9126ec25a880c1a51122 100644 (file)
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -374,6 +374,7 @@ static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
                memcpy(&state(hdlc)->settings, &new_settings, size);
                spin_lock_init(&state(hdlc)->lock);
                dev->header_ops = &cisco_header_ops;
+               dev->hard_header_len = sizeof(struct hdlc_header);
                dev->type = ARPHRD_CISCO;
                call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
                netif_dormant_on(dev);