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2290482379
linux/drivers
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Richard Cochran 2290482379 net: dsa: mv88e6xxx: Fix receive time stamp race condition. 
The DSA stack passes received PTP frames to this driver via
mv88e6xxx_port_rxtstamp() for deferred delivery.  The driver then
queues the frame and kicks the worker thread.  The work callback reads
out the latched receive time stamp and then works through the queue,
delivering any non-matching frames without a time stamp.

If a new frame arrives after the worker thread has read out the time
stamp register but enters the queue before the worker finishes
processing the queue, that frame will be delivered without a time
stamp.

This patch fixes the race by moving the queue onto a list on the stack
before reading out the latched time stamp value.

Fixes: c6fe0ad2c3 ("net: dsa: mv88e6xxx: add rx/tx timestamping support")
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-12 22:05:58 -04:00
..
accessibility
acpi xen: fixes for 4.17-rc1 2018-04-12 11:04:35 -07:00
amba
android
ata Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-04-03 17:42:25 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
auxdisplay
base mm: check __highest_present_section_nr directly in memory_dev_init() 2018-04-11 10:28:31 -07:00
bcma
block The big ticket items are: 2018-04-10 12:25:30 -07:00
bluetooth Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME 2018-04-01 21:43:02 +03:00
bus pci-v4.17-changes 2018-04-06 18:31:06 -07:00
cdrom
char RTC for 4.17 2018-04-10 10:22:27 -07:00
clk ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
clocksource ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
connector
cpufreq cpufreq: Drop cpufreq_table_validate_and_show() 2018-04-10 08:40:45 +02:00
cpuidle cpuidle: menu: Avoid selecting shallow states with stopped tick 2018-04-09 11:54:57 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-04-04 17:11:08 -07:00
dax libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
dca
devfreq
dio
dma DMAengine updates for v4.17-rc1 2018-04-10 12:14:37 -07:00
dma-buf
edac * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
eisa
extcon Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
firewire
firmware MIPS changes for 4.17 2018-04-10 11:39:22 -07:00
fmc treewide: Fix typos in printk 2018-03-27 09:51:22 +02:00
fpga
fsi
gpio DeviceTree updates for 4.17: 2018-04-05 21:03:42 -07:00
gpu remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-04-05 11:53:34 -07:00
hsi
hv ARM: 2018-04-09 11:42:31 -07:00
hwmon hwmon updates for v4.17 2018-04-09 19:59:54 -07:00
hwspinlock
hwtracing Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
i2c Merge branch 'i2c/for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-04-07 12:36:18 -07:00
ide for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
idle
iio This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
infiniband Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-04-05 13:21:57 -07:00
iommu IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
ipack
irqchip IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
isdn mISDN: Remove VLAs 2018-04-12 21:46:10 -04:00
leds
lightnvm lightnvm: pblk: remove some unnecessary NULL checks 2018-03-29 17:29:09 -06:00
macintosh powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
mailbox
mcb
md libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
media remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
memory
memstick
message
mfd
misc * Fix 2032 time access issues and new compiler warnings 2018-04-12 10:21:19 -07:00
mmc MMC core: 2018-04-12 10:59:03 -07:00
mtd This pull request contains updates for both UBI and UBIFS: 2018-04-11 16:39:34 -07:00
mux
net net: dsa: mv88e6xxx: Fix receive time stamp race condition. 2018-04-12 22:05:58 -04:00
nfc
ntb
nubus
nvdimm libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
nvme for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
nvmem Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
of proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps 2018-04-11 10:28:33 -07:00
opp
oprofile oprofilefs: don't oops on allocation failure 2018-03-29 15:07:48 -04:00
parisc parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-03-27 18:52:22 +02:00
parport Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
pci powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
pcmcia Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:26:36 -07:00
perf ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
phy ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
pinctrl This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
platform platform-drivers-x86 for v4.17-1 2018-04-10 12:18:50 -07:00
pnp
power ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
powercap
pps
ps3
ptp
pwm ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
rapidio rapidio: use a reference count for struct mport_dma_req 2018-04-11 10:28:37 -07:00
ras
regulator Merge remote-tracking branches 'regulator/topic/88pg86x', 'regulator/topic/dt', 'regulator/topic/formatting' and 'regulator/topic/gpio' into regulator-next 2018-03-28 10:33:53 +08:00
remoteproc remoteproc: fix null pointer dereference on glink only platforms 2018-04-05 22:53:16 -07:00
reset Merge branch 'reset/lookup' into reset/next 2018-03-27 11:03:43 +02:00
rpmsg rpmsg: smd: Use announce_create to process any receive work 2018-03-27 21:54:37 -07:00
rtc RTC for 4.17 2018-04-10 10:22:27 -07:00
s390 libnvdimm for 4.17 2018-04-10 10:25:57 -07:00
sbus sparc64: Properly range check DAX completion index 2018-04-01 20:07:00 -04:00
scsi SCSI for-linus on 20180404 2018-04-05 15:05:53 -07:00
sfi
sh
siox
slimbus
sn
soc remoteproc updates for v4.17 2018-04-10 12:09:27 -07:00
soundwire
spi spi: SPI updates for v4.17 2018-04-03 12:06:21 -07:00
spmi
ssb
staging page cache: use xa_lock 2018-04-11 10:28:39 -07:00
target for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
tc
tee
thermal
thunderbolt
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-04-09 09:04:10 -07:00
uio
usb Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2018-04-07 11:11:41 -07:00
uwb
vfio VFIO updates for v4.17-rc1 2018-04-06 19:44:27 -07:00
vhost vhost: return bool from *_access_ok() functions 2018-04-11 10:54:06 -04:00
video fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
virt
virtio virtio: feature 2018-04-11 18:58:27 -07:00
visorbus
vlynq
vme
w1
watchdog This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
xen xen: fixes for 4.17-rc1 2018-04-12 11:04:35 -07:00
zorro
Kconfig hwtracing: Add HW tracing support menu 2018-03-29 13:38:10 +03:00
Makefile