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r8152: change rx early size when the mtu is changed

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The rx early size is calculated with the mtu, so it has to be
re-calculated when the mtu is changed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2015-02-12 14:33:47 +08:00 committed by David S. Miller
parent 464ec10a2d
commit 396e2e235a
1 changed files with 15 additions and 1 deletions
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16
drivers/net/usb/r8152.c
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@ -3777,6 +3777,7 @@ out:
static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
{ {
struct r8152 *tp = netdev_priv(dev); struct r8152 *tp = netdev_priv(dev);
int ret;
switch (tp->version) { switch (tp->version) {
case RTL_VER_01: case RTL_VER_01:
@ -3789,9 +3790,22 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU) if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
return -EINVAL; return -EINVAL;
ret = usb_autopm_get_interface(tp->intf);
if (ret < 0)
return ret;
mutex_lock(&tp->control);
dev->mtu = new_mtu; dev->mtu = new_mtu;
return 0; if (netif_running(dev) && netif_carrier_ok(dev))
r8153_set_rx_early_size(tp);
mutex_unlock(&tp->control);
usb_autopm_put_interface(tp->intf);
return ret;
} }
static const struct net_device_ops rtl8152_netdev_ops = { static const struct net_device_ops rtl8152_netdev_ops = {