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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 <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Daniele Palmas
and committed by
David S. Miller
9f7c7283
8a118015
+1
-1
+1
-1
drivers/net/usb/cdc_mbim.c
+1
-1
drivers/net/usb/cdc_mbim.c
···
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*/
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static const struct driver_info cdc_mbim_info_avoid_altsetting_toggle = {
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.description = "CDC MBIM",
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-
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
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+
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP,
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.bind = cdc_mbim_bind,
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.unbind = cdc_mbim_unbind,
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.manage_power = cdc_mbim_manage_power,