Jack Morgenstein c07d27927f net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling ... In procedures mlx4_cmd_use_events() and mlx4_cmd_use_polling(), we need to guarantee that there are no FW commands in progress on the comm channel (for VFs) or wrapped FW commands (on the PF) when SRIOV is active. We do this by also taking the slave_cmd_mutex when SRIOV is active. This is especially important when switching from event to polling, since we free the command-context array during the switch. If there are FW commands in progress (e.g., waiting for a completion event), the completion event handler will access freed memory. Since the decision to use comm_wait or comm_poll is taken before grabbing the event_sem/poll_sem in mlx4_comm_cmd_wait/poll, we must take the slave_cmd_mutex as well (to guarantee that the decision to use events or polling and the call to the appropriate cmd function are atomic). Fixes: a7e1f04905 ("net/mlx4_core: Fix deadlock when switching between polling and event fw commands") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-03-12 15:00:15 -07:00
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accessibility	…
acpi	ACPI: Set debug output flags independent of ACPICA	2019-02-07 12:24:28 +01:00
amba	…
android	binderfs: remove separate device_initcall()	2019-02-01 15:50:26 +01:00
ata	libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD	2019-02-06 12:47:09 -07:00
atm	…
auxdisplay	auxdisplay: ht16k33: fix potential user-after-free on module unload	2019-02-15 19:48:39 +01:00
base	regmap: Changes for v5.1	2019-03-04 19:16:09 -08:00
bcma	…
block	floppy: check_events callback should not return a negative number	2019-02-12 09:13:18 -07:00
bluetooth	Bluetooth: mediatek: add support for MediaTek MT7663U and MT7668U UART devices	2019-03-02 19:51:23 +01:00
bus	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-03-05 09:09:55 -08:00
cdrom	…
char	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-03-05 09:09:55 -08:00
clk	clk: at91: fix masterck name	2019-02-20 11:40:21 -08:00
clocksource	Merge branch 'pwm-dmtimer-fixes' into omap-for-v5.0/fixes-v2	2019-01-29 07:53:47 -08:00
connector	connector: fix unsafe usage of ->real_parent	2019-03-08 15:06:38 -08:00
cpufreq	cpufreq: scmi: Fix use-after-free in scmi_cpufreq_exit()	2019-02-19 11:17:37 +01:00
cpuidle	cpuidle: poll_state: Fix default time limit	2019-01-30 22:57:42 +01:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-03-05 09:09:55 -08:00
dax	…
dca	…
devfreq	…
dio	…
dma	dmaengine-fix-5.0-rc6	2019-02-10 10:39:37 -08:00
dma-buf	…
edac	…
eisa	…
extcon	…
firewire	…
firmware	Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-02-17 09:22:01 -08:00
fmc	…
fpga	fpga: stratix10-soc: fix wrong of_node_put() in init function	2019-01-31 16:19:48 +01:00
fsi	…
gnss	…
gpio	Merge branch 'spi-5.1' into spi-next	2019-03-04 15:32:51 +00:00
gpu	drm/bochs: Fix the ID mismatch error	2019-02-28 14:05:33 +10:00
hid	HID: debug: fix the ring buffer implementation	2019-01-29 12:09:11 +01:00
hsi	…
hv	…
hwmon	hwmon: (ad7418) Add device tree probing	2019-02-25 09:06:00 -08:00
hwspinlock	…
hwtracing	…
i2c	i2c: bcm2835: Clear current buffer pointers and counts after a transfer	2019-02-15 09:45:05 +01:00
i3c	- Add a /* fall-through */ comment in the dw-i3c-master driver	2019-03-04 19:05:02 -08:00
ide	ide: ensure atapi sense request aren't preempted	2019-01-31 08:25:09 -07:00
idle	…
iio	First set of IIO fixes for the 5.0 cycle.	2019-02-03 13:10:41 +01:00
infiniband	net: devlink: turn devlink into a built-in	2019-02-26 08:49:05 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2019-02-17 08:30:35 -08:00
iommu	IOMMU Fix for Linux v5.0-rc8	2019-03-01 09:13:04 -08:00
ipack	…
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-02-10 09:54:19 -08:00
isdn	isdn: hfcpci: fix potential NULL pointer dereference	2019-03-12 14:36:02 -07:00
leds	LED updates for 5.1-rc1	2019-03-04 19:33:04 -08:00
lightnvm	…
macintosh	…
mailbox	mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue	2019-02-18 10:40:58 -06:00
mcb	…
md	for-linus-20190215	2019-02-15 09:12:28 -08:00
media	…
memory	…
memstick	…
message	…
mfd	mfd: Fix unmet dependency warning for MFD_TPS68470	2019-01-29 10:55:34 +01:00
misc	mic: vop: Fix crash on remove	2019-02-01 15:53:54 +01:00
mmc	mmc:fix a bug when max_discard is 0	2019-03-01 09:50:10 +01:00
mtd	spi: Updates for v5.1	2019-03-04 19:23:56 -08:00
mux	…
net	net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling	2019-03-12 15:00:15 -07:00
nfc	…
ntb	…
nubus	…
nvdimm	…
nvme	nvme-pci: add missing unlock for reset error	2019-02-12 09:29:07 +01:00
nvmem	…
of	net: phy: fixed-phy: Drop GPIO from fixed_phy_add()	2019-02-04 18:33:36 -08:00
opp	…
oprofile	…
parisc	parisc: Use F_EXTEND() macro in iosapic code	2019-02-21 20:37:12 +01:00
parport	…
pci	pci-v5.0-fixes-4	2019-02-08 15:32:10 -08:00
pcmcia	…
perf	…
phy	phy: armada38x: add common phy support	2019-02-07 18:10:25 -08:00
pinctrl	pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins	2019-02-17 22:24:32 +01:00
platform	platform/x86: Fix unmet dependency warning for SAMSUNG_Q10	2019-01-29 10:59:07 +01:00
pnp	…
power	…
powercap	…
pps	…
ps3	…
ptp	ptp_qoriq: don't pass a large struct by value but instead pass it by reference	2019-02-19 14:15:40 -08:00
pwm	…
rapidio	…
ras	…
regulator	regulator: mc13xxx: Constify regulator_ops variables	2019-03-04 00:01:08 +00:00
remoteproc	…
reset	…
rpmsg	…
rtc	…
s390	s390 updates for the 5.1 merge window	2019-03-05 11:13:10 -08:00
sbus	…
scsi	SCSI fixes on 20190302	2019-03-02 11:39:54 -08:00
sfi	…
sh	…
siox	…
slimbus	…
sn	…
soc	Here's the main MIPS pull request for v5.1:	2019-03-05 11:28:25 -08:00
soundwire	…
spi	Merge branch 'spi-5.1' into spi-next	2019-03-04 15:32:51 +00:00
spmi	…
ssb	…
staging	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-03-05 08:26:13 -08:00
target	scsi: target: make the pi_prot_format ConfigFS path readable	2019-02-04 21:40:32 -05:00
tc	…
tee	tee: optee: add missing of_node_put after of_device_is_available	2019-02-28 10:23:04 +01:00
thermal	thermal: cpu_cooling: Clarify error message	2019-02-05 15:50:13 -08:00
thunderbolt	…
tty	TTY/Serial fixes for 5.0-rc6	2019-02-08 10:49:55 -08:00
uio	…
usb	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2019-02-24 22:27:19 -08:00
uwb	…
vfio	vfio_pci: Enable memory accesses before calling pci_map_rom	2019-02-18 14:57:50 -07:00
vhost	vhost: silence an unused-variable warning	2019-03-08 15:17:03 -08:00
video	TTY/Serial driver fixes for 5.0-rc4	2019-01-25 12:58:40 -10:00
virt	…
virtio	virtio: drop internal struct from UAPI	2019-02-05 15:29:48 -05:00
visorbus	…
vlynq	…
vme	…
w1	…
watchdog	…
xen	…
zorro	…
Kconfig	…
Makefile	…