From: John Greb h3x4m3r0n@gmail.com
commit eea52743eb5654ec6f52b0e8b4aefec952543697 upstream
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 Signed-off-by: Sudip Mukherjee sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/function/u_ether.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -850,6 +850,10 @@ struct net_device *gether_setup_name_def 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);