[PATCH net-next 2/3] r8152: change rx early size when the mtu is changed
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STALE4267d
SUPERSEDED
From: Hayes Wang <hidden>
Date: 2015-02-11 06:48:05
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Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Status: Superseded by v2 (posted 2015-02-12). [go to v2]
Revision v1 (2 revisions archived).
Revisions (2)
- v1 current
- v2 [diff against previous]
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 <redacted> --- drivers/net/usb/r8152.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index b043c7f..c5301ca 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c@@ -3724,6 +3724,7 @@ out: static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) { struct r8152 *tp = netdev_priv(dev); + int ret; switch (tp->version) { case RTL_VER_01:
@@ -3736,9 +3737,22 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU) return -EINVAL; + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + return ret; + + mutex_lock(&tp->control); + 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 = {
--
2.1.0