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linux/drivers
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Tom Herbert 26c4f7da3e net: Fix remcsum in GRO path to not change packet 
Remote checksum offload processing is currently the same for both
the GRO and non-GRO path. When the remote checksum offload option
is encountered, the checksum field referred to is modified in
the packet. So in the GRO case, the packet is modified in the
GRO path and then the operation is skipped when the packet goes
through the normal path based on skb->remcsum_offload. There is
a problem in that the packet may be modified in the GRO path, but
then forwarded off host still containing the remote checksum option.
A remote host will again perform RCO but now the checksum verification
will fail since GRO RCO already modified the checksum.

To fix this, we ensure that GRO restores a packet to it's original
state before returning. In this model, when GRO processes a remote
checksum option it still changes the checksum per the algorithm
but on return from lower layer processing the checksum is restored
to its original value.

In this patch we add define gro_remcsum structure which is passed
to skb_gro_remcsum_process to save offset and delta for the checksum
being changed. After lower layer processing, skb_gro_remcsum_cleanup
is called to restore the checksum before returning from GRO.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 15:12:09 -08:00
..
accessibility
acpi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-02-10 20:01:30 -08:00
amba Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
android
ata SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
atm atm: remove deprecated use of pci api 2015-01-18 00:28:41 -05:00
auxdisplay
base ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
bcma bcma: implement host code support for PCIe Gen 2 devices 2015-01-29 10:54:43 +02:00
block xen: features and fixes for 3.20-rc0 2015-02-10 13:56:56 -08:00
bluetooth Bluetooth: btusb: Add support for Lite-On (04ca) Broadcom based, BCM43142 2015-02-03 08:57:14 +01:00
bus mvebu fixes for 3.19. (Part 4) 2015-01-23 14:08:13 -08:00
cdrom
char ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
clk Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-02-10 20:01:30 -08:00
clocksource Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-01-27 16:59:56 -08:00
connector
coresight coresight-replicator: remove .owner field for driver 2014-11-26 19:28:11 -08:00
cpufreq ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
cpuidle drivers: cpuidle: Don't initialize big.LITTLE driver if MCPM is unavailable 2015-01-23 15:05:48 +01:00
crypto Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dca
devfreq ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
dio
dma resources: Move struct resource_list_entry from ACPI into resource core 2015-02-05 15:09:25 +01:00
dma-buf
edac EDAC, mv64x60_edac: Fix an error code in probe() 2015-01-30 17:00:43 +01:00
eisa
extcon Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
firewire firewire: sbp2: replace card lock by target lock 2014-12-10 20:53:21 +01:00
firmware * Move efivarfs from the misc filesystem section to pseudo filesystem, 2015-01-29 19:16:40 +01:00
fmc
gpio This is the GPIO bulk changes for the v3.20 series: 2015-02-11 11:17:34 -08:00
gpu sound updates for 3.20-rc1 2015-02-11 08:51:59 -08:00
hid Merge branches 'for-3.19/upstream-fixes', 'for-3.20/apple', 'for-3.20/betop', 'for-3.20/lenovo', 'for-3.20/logitech', 'for-3.20/rmi', 'for-3.20/upstream' and 'for-3.20/wacom' into for-linus 2015-02-09 11:17:45 +01:00
hsi hsi: nokia-modem: fix uninitialized device pointer 2015-01-04 20:19:30 +01:00
hv ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
hwmon hwmon: (tmp102) add hibernation callbacks 2015-02-03 12:17:12 -08:00
hwspinlock
i2c i2c: sh_mobile: terminate DMA reads properly 2015-01-30 17:58:43 +01:00
ide Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
idle
iio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-02-11 09:32:08 -08:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-02-10 20:01:30 -08:00
input Merge branch 'next' into for-linus 2015-02-10 11:35:36 -08:00
iommu Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-02-09 16:57:56 -08:00
ipack
irqchip Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-02-06 08:28:54 -08:00
isdn drivers: isdn: isdnloop: isdnloop.c: Remove parenthesis around return values, as specified in CodingStyle. 2015-02-05 15:40:23 -08:00
leds leds: netxbig: fix oops at probe time 2015-01-13 13:49:01 -08:00
lguest virtio: allow finalize_features to fail 2014-12-09 16:32:32 +02:00
macintosh macintosh: therm_pm72: delete deprecated driver 2014-12-19 19:32:47 +01:00
mailbox Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2015-02-11 12:56:40 -08:00
mcb mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0 2015-01-09 15:46:37 -08:00
md Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-02-09 14:28:42 -08:00
media [media] dvb_net: Convert local hex dump to print_hex_dump_debug 2015-02-03 18:24:44 -02:00
memory MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
memstick
message
mfd - Avoid platform ID collision in da9052 2015-01-21 18:29:44 +12:00
misc SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
mmc mmc: sdhci-s3c: solve problem with sleeping in atomic context 2015-02-04 13:39:14 +01:00
mtd MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
net net: Fix remcsum in GRO path to not change packet 2015-02-11 15:12:09 -08:00
nfc NFC: nci: Move NFCEE discovery logic 2015-02-04 09:15:18 +01:00
ntb
nubus
of ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
oprofile
parisc parisc/PCI: Clip bridge windows to fit in upstream windows 2015-01-16 10:04:43 -06:00
parport parport: parport_atari: Remove obsolete IRQ_TYPE_SLOW 2015-01-15 13:44:50 +01:00
pci ACPI and power management updates for v3.20-rc1 2015-02-10 15:09:41 -08:00
pcmcia Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
phy SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
pinctrl This is the bulk of pin control changes for the v3.20 cycle: 2015-02-11 11:23:13 -08:00
platform Revert "platform: x86: dell-laptop: Add support for keyboard backlight" 2015-01-23 11:10:32 -08:00
pnp ACPI: Return translation offset when parsing ACPI address space resources 2015-02-03 22:27:21 +01:00
power power_supply: 88pm860x: Fix leaked power supply on probe fail 2015-01-28 15:08:10 +01:00
powercap powercap / RAPL: add IDs for future Xeon CPUs 2014-12-17 02:35:42 +01:00
pps
ps3
ptp
pwm pwm: Changes for v3.19-rc1 2014-12-17 10:10:51 -08:00
rapidio rapidio/tsi721: use PCI define for Max_Read_Request_Size 2015-01-27 08:14:26 -06:00
ras
regulator Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rpm', 'regulator/topic/rt5033' and 'regulator/topic/tps65023' into regulator-next 2015-02-08 11:16:30 +08:00
remoteproc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
reset reset: sunxi: fix spinlock initialization 2015-01-16 19:11:31 -08:00
rpmsg
rtc Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-02-09 17:53:53 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-01-27 16:59:56 -08:00
sbus
scsi SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
sfi SFI: fix compiler warnings 2014-12-03 18:49:20 -05:00
sh drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-05 03:08:24 +01:00
sn
soc Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
spi treewide: Remove unnecessary BCMA_CORETABLE_END macro 2015-02-11 14:38:28 -08:00
spmi
ssb treewide: Remove unnecessary SSB_DEVTABLE_END macro 2015-02-11 14:38:29 -08:00
staging sound updates for 3.20-rc1 2015-02-11 08:51:59 -08:00
target netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
tc
thermal Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-01-27 16:59:56 -08:00
thunderbolt
tty serial: samsung: Add the support for Exynos5433 SoC 2015-01-09 13:46:02 -08:00
uio Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
usb treewide: Remove unnecessary SSB_DEVTABLE_END macro 2015-02-11 14:38:29 -08:00
uwb
vfio vfio-pci: Fix the check on pci device type in vfio_pci_probe() 2015-01-07 10:29:11 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-02-05 14:33:28 -08:00
video fbdev changes for v3.20 2015-02-11 09:24:30 -08:00
virt
virtio virtio_pci: document why we defer kfree 2015-01-06 16:35:36 +02:00
vlynq
vme
w1 Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
watchdog watchdog: drop owner assignment from platform_drivers 2015-01-21 14:52:34 +01:00
xen SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
zorro
Kconfig drivers/Kconfig: remove duplicate entry for soc 2015-01-25 20:26:42 +08:00
Makefile drivers: Move iommu/ before gpu/ in Makefile 2014-12-22 11:47:37 +02:00