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authorJohn Greb <h3x4m3r0n@gmail.com>2018-05-06 20:01:57 +0000
committerFelipe Balbi <felipe.balbi@linux.intel.com>2018-05-15 10:17:14 +0300
commiteea52743eb5654ec6f52b0e8b4aefec952543697 (patch)
treeee054588a30e507403e8c69948cd151264ae4958 /drivers/usb/gadget/function/u_ether.c
parentusb: dwc2: Change reading of current frame number flow. (diff)
downloadlinux-dev-eea52743eb5654ec6f52b0e8b4aefec952543697.tar.xz
linux-dev-eea52743eb5654ec6f52b0e8b4aefec952543697.zip
USB: Gadget Ethernet: Re-enable Jumbo frames.
Fixes: <b3e3893e1253> ("net: use core MTU range checking") which patched only one of two functions used to setup the USB Gadget Ethernet driver, causing a serious performance regression in the ability to increase mtu size above 1500. Signed-off-by: John Greb <h3x4m3r0n@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget/function/u_ether.c')
-rw-r--r--drivers/usb/gadget/function/u_ether.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 6fcda62f55ea..1000d864929c 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -844,6 +844,10 @@ struct net_device *gether_setup_name_default(const char *netname)
net->ethtool_ops = &ops;
SET_NETDEV_DEVTYPE(net, &gadget_type);
+ /* MTU range: 14 - 15412 */
+ net->min_mtu = ETH_HLEN;
+ net->max_mtu = GETHER_MAX_ETH_FRAME_LEN;
+
return net;
}
EXPORT_SYMBOL_GPL(gether_setup_name_default);