From: Rafal Redzimski <rafal.f.redzimski@xxxxxxxxx> Current implementation updates the mtu size and notify cdc_ncm device using USB_CDC_SET_MAX_DATAGRAM_SIZE request about datagram size change instead of changing rx_urb_size. Whenever mtu is being changed, datagram size should also be updated. Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Rafal Redzimski <rafal.f.redzimski@xxxxxxxxx> Signed-off-by: Robert Dobrowolski <robert.dobrowolski@xxxxxxxxxxxxxxx> --- drivers/net/usb/cdc_ncm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 2fb31ed..4a47656 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -746,6 +746,8 @@ int cdc_ncm_change_mtu(struct net_device *net, int new_mtu) if (new_mtu <= 0 || new_mtu > maxmtu) return -EINVAL; net->mtu = new_mtu; + cdc_ncm_set_dgram_size(dev, new_mtu); + return 0; } EXPORT_SYMBOL_GPL(cdc_ncm_change_mtu); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
