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linux/drivers/net/usb
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Ben Hutchings e083cde25c usbnet: Fix tx_bytes statistic running backward in cdc_ncm 
[ Upstream commit 7a1e890e21 ]

cdc_ncm disagrees with usbnet about how much framing overhead should
be counted in the tx_bytes statistics, and tries 'fix' this by
decrementing tx_bytes on the transmit path.  But statistics must never
be decremented except due to roll-over; this will thoroughly confuse
user-space.  Also, tx_bytes is only incremented by usbnet in the
completion path.

Fix this by requiring drivers that set FLAG_MULTI_FRAME to set a
tx_bytes delta along with the tx_packets count.

Fixes: beeecd42c3 ("net: cdc_ncm/cdc_mbim: adding NCM protocol statistics")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
History 2015-04-27 17:13:42 -04:00
..
asix.h drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
asix_common.c usbnet: Fix tx_bytes statistic running backward in cdc_ncm 2015-04-27 17:13:42 -04:00
asix_devices.c asix: Do full reset during ax88772_bind 2014-11-07 15:30:03 -05:00
ax88172a.c usb: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
ax88179_178a.c ax88179_178a: fix bonding failure 2014-10-20 00:53:30 -04:00
catc.c net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
cdc-phonet.c net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
cdc_eem.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
cdc_ether.c cdc-ether: handle promiscuous mode with a set_rx_mode callback 2014-10-28 17:26:20 -04:00
cdc_mbim.c vlan: kill vlan_put_tag helper 2015-04-27 16:48:33 -04:00
cdc_ncm.c usbnet: Fix tx_bytes statistic running backward in cdc_ncm 2015-04-27 17:13:42 -04:00
cdc_subset.c cdc_subset: deal with a device that needs reset for timeout 2014-08-02 15:44:18 -07:00
cx82310_eth.c Revert "net: cx82310_eth: use common match macro" 2015-03-24 08:22:20 -04:00
dm9601.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-18 00:55:41 -08:00
gl620a.c usbnet: remove generic hard_header_len check 2014-02-17 14:35:46 -05:00
hso.c net/usb/hso: Add support for Option GTM671WFS 2014-08-05 13:06:04 -07:00
huawei_cdc_ncm.c net: huawei_cdc_ncm: add "subclass 3" devices 2014-07-17 16:49:50 -07:00
int51x1.c usb: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
ipheth.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-03 23:32:12 -07:00
kalmia.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
kaweth.c net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
Kconfig net: fix USB network driver config option. 2014-08-06 16:00:20 -07:00
lg-vl600.c lg-vl600: Convert uses of __constant_<foo> to <foo> 2014-03-12 15:28:06 -04:00
Makefile r8152: disable the ECM mode 2014-03-05 20:40:24 -05:00
mcs7830.c usbnet: remove generic hard_header_len check 2014-02-17 14:35:46 -05:00
net1080.c usbnet: remove generic hard_header_len check 2014-02-17 14:35:46 -05:00
pegasus.c net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
pegasus.h drivers: net: usb: pegasus: fix control urb submission 2013-04-29 13:57:50 -04:00
plusb.c usb: plusb: Add support for National Instruments host-to-host cable 2015-03-14 15:37:14 -04:00
qmi_wwan.c qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem 2014-11-16 16:04:09 -05:00
r8152.c r8152: stop submitting intr for -EPROTO 2014-10-31 13:55:10 -04:00
rndis_host.c usbnet: remove generic hard_header_len check 2014-02-17 14:35:46 -05:00
rtl8150.c net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
sierra_net.c usb: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
smsc75xx.c usbnet: remove generic hard_header_len check 2014-02-17 14:35:46 -05:00
smsc75xx.h usb: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
smsc95xx.c usbnet: smsc95xx: add reset_resume function with reset operation 2014-07-10 00:42:57 -07:00
smsc95xx.h usb: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
sr9700.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
sr9700.h USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support 2013-09-03 22:26:03 -04:00
sr9800.c usbnet: Fix tx_bytes statistic running backward in cdc_ncm 2015-04-27 17:13:42 -04:00
sr9800.h USB2NET : SR9800 : One chip USB2.0 USB2NET SR9800 Device Driver Support 2014-02-10 16:53:06 -08:00
usbnet.c usbnet: Fix tx_bytes statistic running backward in cdc_ncm 2015-04-27 17:13:42 -04:00
zaurus.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00