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wil6210: limit MTU

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Obey 802.11 spec that defines max. data size 7920 bytes

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev 2014-05-27 14:45:44 +03:00 committed by John W. Linville
parent 60ccc107c9
commit d87bac1b26
1 changed files with 14 additions and 0 deletions
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14
drivers/net/wireless/ath/wil6210/netdev.c
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@ -32,12 +32,26 @@ static int wil_stop(struct net_device *ndev)
return wil_down(wil); return wil_down(wil);
} }
static int wil_change_mtu(struct net_device *ndev, int new_mtu)
{
struct wil6210_priv *wil = ndev_to_wil(ndev);
if (new_mtu < 68 || new_mtu > IEEE80211_MAX_DATA_LEN_DMG)
return -EINVAL;
wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu);
ndev->mtu = new_mtu;
return 0;
}
static const struct net_device_ops wil_netdev_ops = { static const struct net_device_ops wil_netdev_ops = {
.ndo_open = wil_open, .ndo_open = wil_open,
.ndo_stop = wil_stop, .ndo_stop = wil_stop,
.ndo_start_xmit = wil_start_xmit, .ndo_start_xmit = wil_start_xmit,
.ndo_set_mac_address = eth_mac_addr, .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr, .ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = wil_change_mtu,
}; };
static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget) static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)