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linux/drivers
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Vedang Patel 1e08511d5d igb: clear out skb->tstamp after reading the txtime 
If a packet which is utilizing the launchtime feature (via SO_TXTIME socket
option) also requests the hardware transmit timestamp, the hardware
timestamp is not delivered to the userspace. This is because the value in
skb->tstamp is mistaken as the software timestamp.

Applications, like ptp4l, request a hardware timestamp by setting the
SOF_TIMESTAMPING_TX_HARDWARE socket option. Whenever a new timestamp is
detected by the driver (this work is done in igb_ptp_tx_work() which calls
igb_ptp_tx_hwtstamps() in igb_ptp.c[1]), it will queue the timestamp in the
ERR_QUEUE for the userspace to read. When the userspace is ready, it will
issue a recvmsg() call to collect this timestamp.  The problem is in this
recvmsg() call. If the skb->tstamp is not cleared out, it will be
interpreted as a software timestamp and the hardware tx timestamp will not
be successfully sent to the userspace. Look at skb_is_swtx_tstamp() and the
callee function __sock_recv_timestamp() in net/socket.c for more details.

Signed-off-by: Vedang Patel <vedang.patel@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-28 14:45:33 -07:00
..
accessibility
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2019-05-24 17:36:47 +02:00
acpi
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2019-06-19 17:09:55 +02:00
amba
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
android
binder: fix possible UAF when freeing buffer
2019-06-13 10:35:55 +02:00
ata
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
atm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
auxdisplay
auxdisplay/ht16k33.c: Convert to use vm_map_pages_zero()
2019-06-20 15:06:24 +02:00
base
drivers/base/devres: introduce devm_release_action()
2019-06-13 17:34:56 -10:00
bcma
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block
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
bluetooth
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
bus
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
cdrom
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1
2019-05-21 11:28:39 +02:00
char
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
clk
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2019-06-28 08:50:09 +08:00
clocksource
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
connector
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
counter
Merge tag 'iio-fixes-for-5.2b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
2019-06-17 22:28:29 +02:00
cpufreq
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpuidle
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2019-06-19 17:09:55 +02:00
crypto
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dax
mm/devm_memremap_pages: fix final page put race
2019-06-13 17:34:56 -10:00
dca
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 33
2019-05-24 17:27:11 +02:00
devfreq
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dio
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
dma
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dma-buf
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2019-06-19 17:09:07 +02:00
edac
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2019-06-05 17:37:17 +02:00
eisa
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210
2019-05-30 11:29:53 -07:00
extcon
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
firewire
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
firmware
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
fmc
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 60
2019-05-24 17:36:45 +02:00
fpga
Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-06-08 12:52:42 -07:00
fsi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 469
2019-06-19 17:09:11 +02:00
gnss
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
gpio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
gpu
Merge tag 'drm-fixes-2019-06-21' of git://anongit.freedesktop.org/drm/drm
2019-06-21 11:03:33 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2019-06-28 08:39:18 +08:00
hsi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
2019-06-05 17:37:07 +02:00
hv
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2019-06-05 17:37:05 +02:00
hwmon
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2019-06-19 17:09:55 +02:00
hwspinlock
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hwtracing
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
i2c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
i3c
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
ide
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2019-06-19 17:09:55 +02:00
idle
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335
2019-06-05 17:37:06 +02:00
iio
Merge tag 'staging-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2019-06-21 10:20:19 -07:00
infiniband
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
input
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
interconnect
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
iommu
Merge tag 'iommu-fix-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2019-06-22 14:08:47 -07:00
ipack
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
irqchip
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-07 11:00:14 -07:00
leds
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
lightnvm
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2019-06-05 17:37:14 +02:00
macintosh
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 247
2019-06-19 17:09:08 +02:00
mailbox
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mcb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
md
Merge tag 'for-5.2/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
2019-06-28 08:48:21 +08:00
media
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
memory
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
memstick
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2019-06-19 17:09:55 +02:00
message
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
mfd
Merge tag 'mfd-fixes-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-06-25 03:41:03 +08:00
misc
Merge tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-06-21 10:18:16 -07:00
mmc
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
mtd
Merge tag 'mtd/fixes-for-5.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
2019-06-24 21:23:55 +08:00
mux
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net
igb: clear out skb->tstamp after reading the txtime
2019-06-28 14:45:33 -07:00
nfc
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 417
2019-06-05 17:37:15 +02:00
ntb
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2019-06-05 17:36:37 +02:00
nubus
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
nvdimm
mm/devm_memremap_pages: fix final page put race
2019-06-13 17:34:56 -10:00
nvme
Merge branch 'nvme-5.2-rc-next' of git://git.infradead.org/nvme into for-linus
2019-06-07 14:04:28 -06:00
nvmem
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2019-06-19 17:09:55 +02:00
of
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2019-06-05 17:37:16 +02:00
opp
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
oprofile
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parisc
Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-06-08 12:52:42 -07:00
parport
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pci
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-27 21:06:39 -07:00
pcmcia
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2019-06-19 17:09:55 +02:00
perf
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2019-06-19 17:09:55 +02:00
phy
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2019-06-19 17:09:55 +02:00
pinctrl
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2019-06-19 17:09:55 +02:00
platform
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2019-06-19 17:09:55 +02:00
pnp
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2019-05-30 11:25:19 -07:00
power
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2019-06-19 17:09:55 +02:00
powercap
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2019-06-05 17:37:04 +02:00
pps
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2019-05-24 17:36:45 +02:00
ps3
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2019-05-30 11:26:39 -07:00
ptp
ptp: add QorIQ PTP support for DPAA2
2019-06-15 13:43:06 -07:00
pwm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
rapidio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
ras
RAS/CEC: Convert the timer callback to a workqueue
2019-06-07 23:21:39 +02:00
regulator
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2019-06-19 17:09:55 +02:00
remoteproc
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2019-06-19 17:09:55 +02:00
reset
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2019-06-19 17:09:55 +02:00
rpmsg
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rtc
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2019-06-19 17:09:55 +02:00
s390
s390/qeth: move cast type selection into fill_header()
2019-06-27 10:18:24 -07:00
sbus
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
scsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-27 21:06:39 -07:00
sfi
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
sh
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
siox
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
slimbus
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sn
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
soc
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
soundwire
Merge tag 'soundwire-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-linus
2019-06-10 18:07:39 +02:00
spi
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2019-06-19 17:09:55 +02:00
spmi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
ssb
ssb/gpio: Remove unnecessary WARN_ON from driver_gpio
2019-06-25 08:05:34 +03:00
staging
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
target
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
tc
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
tee
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
thermal
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
thunderbolt
thunderbolt: Implement CIO reset correctly for Titan Ridge
2019-06-14 14:25:43 +03:00
tty
vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
2019-05-24 17:08:18 +02:00
uio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
usb
Merge tag 'fixes-for-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
2019-06-20 11:56:35 +02:00
uwb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
vfio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
vhost
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-22 08:59:24 -04:00
video
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
virt
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
virtio
virtio: Fix indentation of VIRTIO_MMIO
2019-05-27 11:08:22 -04:00
visorbus
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
vlynq
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2019-05-24 17:39:00 +02:00
vme
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2019-05-30 11:26:32 -07:00
w1
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2019-06-19 17:09:55 +02:00
watchdog
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2019-06-19 17:09:55 +02:00
xen
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
zorro
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Kconfig
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Makefile
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