Bjørn Mork 1dfddff5fc net: cdc_ncm: avoid changing RX/TX buffers on MTU changes ... NCM buffer sizes are negotiated with the device independently of the network device MTU. The RX buffers are allocated by the usbnet framework based on the rx_urb_size value set by cdc_ncm. A single RX buffer can hold a number of MTU sized packets. The default usbnet change_mtu ndo only modifies rx_urb_size if it is equal to hard_mtu. And the cdc_ncm driver will set rx_urb_size and hard_mtu independently of each other, based on dwNtbInMaxSize and dwNtbOutMaxSize respectively. It was therefore assumed that usbnet_change_mtu() would never touch rx_urb_size. This failed to consider the case where dwNtbInMaxSize and dwNtbOutMaxSize happens to be equal. Fix by implementing an NCM specific change_mtu ndo, modifying the netdev MTU without touching the buffer size settings. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-12-23 22:52:08 -05:00
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association.h
atmel_usba_udc.h
audio-v2.h
audio.h
c67x00.h
cdc_ncm.h	net: cdc_ncm: avoid changing RX/TX buffers on MTU changes	2015-12-23 22:52:08 -05:00
cdc-wdm.h
cdc.h	cdc: add header guards	2015-09-15 21:53:24 -07:00
ch9.h	usb: common: of_usb_get_maximum_speed to usb_get_maximum_speed	2015-09-27 10:54:31 -05:00
chipidea.h	usb: chipidea: Add support for 'phy-clkgate-delay-us' property	2015-10-22 09:24:25 +08:00
composite.h
ehci_def.h
ehci_pdriver.h
ehci-dbgp.h
ezusb.h
functionfs.h
g_hid.h
gadget_configfs.h	usb-gadget: use per-attribute show and store methods	2015-10-13 22:12:57 -07:00
gadget.h	usb: gadget: introduce 'enabled' flag in struct usb_ep	2015-09-27 10:54:31 -05:00
gpio_vbus.h
hcd.h	usb: define HCD_USB31 speed option for hosts that support USB 3.1 features	2015-10-04 10:34:17 +01:00
input.h
iowarrior.h
irda.h
isp116x.h
isp1301.h
isp1362.h
isp1760.h
m66592.h
msm_hsusb_hw.h
msm_hsusb.h
musb-omap.h
musb-ux500.h
musb.h	usb: musb: set the controller speed based on the config setting	2015-09-27 10:54:31 -05:00
net2280.h
of.h	usb: common: of_usb_get_dr_mode to usb_get_dr_mode	2015-09-27 10:54:31 -05:00
ohci_pdriver.h
otg-fsm.h
otg.h	usb: common: of_usb_get_dr_mode to usb_get_dr_mode	2015-09-27 10:54:31 -05:00
phy_companion.h
phy.h	usb: phy: change some comments	2015-09-27 10:54:31 -05:00
quirks.h	USB: add quirk for devices with broken LPM	2015-12-11 15:40:51 -08:00
r8a66597.h
renesas_usbhs.h	usb: renesas_usbhs: fix build warning if 64-bit architecture	2015-10-04 10:59:03 +01:00
rndis_host.h
samsung_usb_phy.h
serial.h
sl811.h
storage.h
tegra_usb_phy.h
tilegx.h
uas.h
ulpi.h
usb338x.h
usb_phy_generic.h
usbnet.h
wusb-wa.h
wusb.h
xhci_pdriver.h