Magnus Karlsson 71a773ab79 dpaa_eth: execute xdp_do_flush() before napi_complete_done() ... [ Upstream commit b534013798 ] Make sure that xdp_do_flush() is always executed before napi_complete_done(). This is important for two reasons. First, a redirect to an XSKMAP assumes that a call to xdp_do_redirect() from napi context X on CPU Y will be followed by a xdp_do_flush() from the same napi context and CPU. This is not guaranteed if the napi_complete_done() is executed before xdp_do_flush(), as it tells the napi logic that it is fine to schedule napi context X on another CPU. Details from a production system triggering this bug using the veth driver can be found following the first link below. The second reason is that the XDP_REDIRECT logic in itself relies on being inside a single NAPI instance through to the xdp_do_flush() call for RCU protection of all in-kernel data structures. Details can be found in the second link below. Fixes: a1e031ffb4 ("dpaa_eth: add XDP_REDIRECT support") Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20221220185903.1105011-1-sbohrer@cloudflare.com Link: https://lore.kernel.org/all/20210624160609.292325-1-toke@redhat.com/ Acked-by: Camelia Groza <camelia.groza@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-02-09 11:28:05 +01:00
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accessibility	tty: fix possible null-ptr-defer in spk_ttyio_release	2023-01-24 07:24:37 +01:00
acpi	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
amba
android
ata	ata: pata_cs5535: Don't build on UML	2023-02-01 08:34:34 +01:00
atm
auxdisplay
base	driver core: Fix test_async_probe_init saves device in wrong array	2023-02-01 08:34:26 +01:00
bcma
block	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
bluetooth	Bluetooth: hci_qca: Fix driver shutdown on closed serdev	2023-01-24 07:24:32 +01:00
bus	bus: sunxi-rsb: Fix error handling in sunxi_rsb_init()	2023-02-09 11:27:59 +01:00
cdrom
char	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
clk
clocksource
comedi	comedi: adv_pci1760: Fix PWM instruction handling	2023-01-24 07:24:35 +01:00
connector
counter
cpufreq	cpufreq: armada-37xx: stop using 0 as NULL pointer	2023-02-01 08:34:31 +01:00
cpuidle
crypto	virtio-crypto: fix memory leak in virtio_crypto_alg_skcipher_close_session()	2023-01-12 12:02:08 +01:00
cxl
dax
dca
devfreq
dio
dma	dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init	2023-02-06 08:06:33 +01:00
dma-buf	dma-buf: fix dma_buf_export init order v2	2023-01-24 07:24:30 +01:00
edac	EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info's pvt_info	2023-02-01 08:34:40 +01:00
eisa
extcon
firewire	firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region	2023-02-09 11:27:59 +01:00
firmware	firmware: arm_scmi: Clear stale xfer->hdr.status	2023-02-06 08:06:31 +01:00
fpga
fsi	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
gnss
gpio	gpiolib-acpi: Don't set GPIOs for wakeup in S3 mode	2023-02-06 08:06:34 +01:00
gpu	drm/ssd130x: Init display before the SSD130X_DISPLAY_ON command	2023-02-09 11:28:02 +01:00
greybus
hid	HID: playstation: sanity check DualSense calibration data.	2023-02-06 08:06:33 +01:00
hsi
hte
hv
hwmon
hwspinlock
hwtracing
i2c	i2c: designware: Fix unbalanced suspended flag	2023-02-01 08:34:42 +01:00
i3c
idle
iio
infiniband	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
input	Input: i8042 - add Clevo PCX0DX to i8042 quirk table	2023-02-01 08:34:50 +01:00
interconnect	interconnect: qcom: msm8996: Fix regmap max_register values	2023-02-01 08:34:06 +01:00
iommu	iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer	2023-01-18 11:58:21 +01:00
ipack
irqchip
isdn	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
leds
macintosh
mailbox
mcb
md	block: handle bio_split_to_limits() NULL return	2023-01-18 11:58:33 +01:00
media	media: v4l2-ctrls-api.c: move ctrl->is_new = 1 to the correct line	2023-02-09 11:28:01 +01:00
memory	memory: mvebu-devbus: Fix missing clk_disable_unprepare in mvebu_devbus_probe()	2023-02-01 08:34:02 +01:00
memstick
message
mfd
misc	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
mmc	mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting	2023-01-24 07:24:35 +01:00
most
mtd	mtd: cfi: allow building spi-intel standalone	2023-01-18 11:58:24 +01:00
mux
net	dpaa_eth: execute xdp_do_flush() before napi_complete_done()	2023-02-09 11:28:05 +01:00
nfc	nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()	2023-01-18 11:58:26 +01:00
ntb
nubus
nvdimm
nvme	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
nvmem
of	of: fdt: Honor CONFIG_CMDLINE* even without /chosen node, take 2	2023-01-24 07:24:32 +01:00
opp
parisc
parport
pci
pcmcia
peci
perf	Partially revert "perf/arm-cmn: Optimise DTC counter accesses"	2023-02-01 08:34:49 +01:00
phy	phy: phy-can-transceiver: Skip warning if no "max-bitrate"	2023-02-01 08:34:25 +01:00
pinctrl	pinctrl: rockchip: fix mux route data for rk3568	2023-02-01 08:34:20 +01:00
platform	platform/x86: apple-gmux: Add apple_gmux_detect() helper	2023-02-01 08:34:46 +01:00
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator	regulator: da9211: Use irq handler when ready	2023-01-18 11:58:22 +01:00
remoteproc
reset	reset: uniphier-glue: Fix possible null-ptr-deref	2023-02-01 08:34:05 +01:00
rpmsg
rtc
s390	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
sbus
scsi	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
sh
siox
slimbus
soc	PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe()	2023-02-01 08:34:08 +01:00
soundwire
spi	spi: spidev: remove debug messages that access spidev->spi without locking	2023-02-01 08:34:32 +01:00
spmi
ssb
staging	staging: vchiq_arm: fix enum vchiq_status return types	2023-01-24 07:24:35 +01:00
target	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
tc
tee
thermal	thermal: intel: int340x: Add locking to int340x_thermal_get_trip_type()	2023-02-01 08:34:48 +01:00
thunderbolt	thunderbolt: Do not call PM runtime functions in tb_retimer_scan()	2023-01-24 07:24:37 +01:00
tty	serial: exar: Add support for Sealevel 7xxxC serial cards	2023-01-24 07:24:39 +01:00
ufs	scsi: ufs: core: Fix devfreq deadlocks	2023-02-01 08:34:39 +01:00
uio
usb	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
vdpa	vdpa_sim_net: should not drop the multicast/broadcast packet	2023-01-24 07:24:31 +01:00
vfio	vfio/type1: Respect IOMMU reserved regions in vfio_test_domain_fgsp()	2023-02-01 08:34:36 +01:00
vhost	vhost-scsi: unbreak any layout for response	2023-02-09 11:28:04 +01:00
video	fbdev: omapfb: avoid stack overflow warning	2023-01-24 07:24:32 +01:00
virt
virtio	virtio_pci: modify ENOENT to EINVAL	2023-01-24 07:24:31 +01:00
vlynq
w1	w1: fix WARNING after calling w1_process()	2023-02-01 08:34:26 +01:00
watchdog
xen	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
zorro
Kconfig
Makefile