From: Daniele Palmas Date: Thu, 31 May 2018 09:18:29 +0000 (+0200) Subject: net: usb: cdc_mbim: add flag FLAG_SEND_ZLP X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9f7c728332e8966084242fcd951aa46583bc308c;p=linux.git net: usb: cdc_mbim: add flag FLAG_SEND_ZLP Testing Telit LM940 with ICMP packets > 14552 bytes revealed that the modem needs FLAG_SEND_ZLP to properly work, otherwise the cdc mbim data interface won't be anymore responsive. Signed-off-by: Daniele Palmas Acked-by: Bjørn Mork Signed-off-by: David S. Miller --- diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 7220cd6207172..0362acd5cdcaa 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -609,7 +609,7 @@ static const struct driver_info cdc_mbim_info_ndp_to_end = { */ static const struct driver_info cdc_mbim_info_avoid_altsetting_toggle = { .description = "CDC MBIM", - .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, + .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP, .bind = cdc_mbim_bind, .unbind = cdc_mbim_unbind, .manage_power = cdc_mbim_manage_power,