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authorJohn Greb <h3x4m3r0n@gmail.com>2018-05-06 20:01:57 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-02-23 14:00:34 +0100
commit2c7a2cf336a2fb94e6c78b9ae4331581a311d01f (patch)
tree6068e2441f8215898961afeb49bbe5e90ca482fa
parent944a2bc49082d73ca6fc700cc16ca3863b228617 (diff)
USB: Gadget Ethernet: Re-enable Jumbo frames.
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>
-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 716edd593a99..0b24c365d988 100644
--- 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_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);