Hangbin Liu 8bf95f28be net: add bool confirm_neigh parameter for dst_ops.update_pmtu ... [ Upstream commit bd085ef678 ] The MTU update code is supposed to be invoked in response to real networking events that update the PMTU. In IPv6 PMTU update function __ip6_rt_update_pmtu() we called dst_confirm_neigh() to update neighbor confirmed time. But for tunnel code, it will call pmtu before xmit, like: - tnl_update_pmtu() - skb_dst_update_pmtu() - ip6_rt_update_pmtu() - __ip6_rt_update_pmtu() - dst_confirm_neigh() If the tunnel remote dst mac address changed and we still do the neigh confirm, we will not be able to update neigh cache and ping6 remote will failed. So for this ip_tunnel_xmit() case, _EVEN_ if the MTU is changed, we should not be invoking dst_confirm_neigh() as we have no evidence of successful two-way communication at this point. On the other hand it is also important to keep the neigh reachability fresh for TCP flows, so we cannot remove this dst_confirm_neigh() call. To fix the issue, we have to add a new bool parameter for dst_ops.update_pmtu to choose whether we should do neigh update or not. I will add the parameter in this patch and set all the callers to true to comply with the previous way, and fix the tunnel code one by one on later patches. v5: No change. v4: No change. v3: Do not remove dst_confirm_neigh, but add a new bool parameter in dst_ops.update_pmtu to control whether we should do neighbor confirm. Also split the big patch to small ones for each area. v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu. Suggested-by: David Miller <davem@davemloft.net> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-04 19:13:37 +01:00
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accessibility
acpi	ACPI: button: Add DMI quirk for Medion Akoya E2215T	2019-12-31 16:35:28 +01:00
amba
android	binder: Handle start==NULL in binder_update_page_range()	2019-12-13 08:52:52 +01:00
ata	libata: Ensure ata_port probe has completed before detach	2019-12-31 16:35:31 +01:00
atm	atm: zatm: Fix empty body Clang warnings	2019-12-01 09:16:41 +01:00
auxdisplay	auxdisplay: panel: need to delete scan_timer when misc_register fails in panel_attach	2019-09-06 10:21:56 +02:00
base	drivers/base/platform.c: kmemleak ignore a known leak	2019-12-05 09:21:04 +01:00
bcma
block	nbd: fix shutdown and recv work deadlock v2	2019-12-31 16:36:36 +01:00
bluetooth	Bluetooth: hci_bcm: Handle specific unknown packets after firmware loading	2019-12-05 09:20:39 +01:00
bus	bus: ti-sysc: Fix getting optional clocks in clock_roles	2019-12-13 08:51:23 +01:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:13:12 +01:00
char	ipmi: Don't allow device module unload when in use	2019-12-31 16:35:23 +01:00
clk	clk: pxa: fix one of the pxa RTC clocks	2020-01-04 19:12:57 +01:00
clocksource	clocksource/drivers/timer-of: Use unique device name instead of timer	2020-01-04 19:12:45 +01:00
connector
cpufreq	cpufreq: Register drivers only after CPU devices have been registered	2019-12-31 16:36:01 +01:00
cpuidle	cpuidle: Do not unset the driver if it is there already	2019-12-17 20:35:00 +01:00
crypto	crypto: vmx - Avoid weird build failures	2019-12-31 16:36:13 +01:00
dax
dca
devfreq	PM / devfreq: Lock devfreq in trans_stat_show	2019-12-17 20:35:03 +01:00
dio
dma	dmaengine: xilinx_dma: Clear desc_pendingcount in xilinx_dma_reset	2020-01-04 19:12:38 +01:00
dma-buf	dma-buf: Fix memory leak in sync_file_merge()	2019-12-21 10:57:38 +01:00
edac	EDAC/ghes: Fix grain calculation	2019-12-31 16:35:58 +01:00
eisa
extcon	extcon: sm5502: Reset registers during initialization	2019-12-31 16:35:11 +01:00
firewire
firmware	firmware: arm_scmi: Avoid double free in error flow	2019-12-17 20:35:52 +01:00
fmc
fpga	fpga: altera-ps-spi: Fix getting of optional confd gpio	2019-09-21 07:16:53 +02:00
fsi	fsi: core: Fix small accesses and unaligned offsets via sysfs	2019-12-31 16:35:55 +01:00
gnss
gpio	gpio: mpc8xxx: Don't overwrite default irq_set_type callback	2020-01-04 19:13:07 +01:00
gpu	drm/amdgpu: fix uninitialized variable pasid_mapping_needed	2019-12-31 16:36:19 +01:00
hid	HID: rmi: Check that the RMI_STARTED bit is set before unregistering the RMI transport device	2020-01-04 19:13:00 +01:00
hsi
hv	vmbus: keep pointer to ring buffer page	2019-11-20 18:47:31 +01:00
hwmon	hwmon: (npcm-750-pwm-fan) Change initial pwm target to 255	2019-11-24 08:21:01 +01:00
hwspinlock
hwtracing	intel_th: pci: Add Elkhart Lake SOC support	2019-12-31 16:36:24 +01:00
i2c	i2c: imx: don't print error message on probe defer	2019-12-13 08:51:57 +01:00
ide
idle
iio	iio: dac: ad5446: Add support for new AD5600 DAC	2019-12-31 16:36:00 +01:00
infiniband	RDMA/qedr: Fix memory leak in user qp and mr	2019-12-31 16:35:29 +01:00
input	Input: atmel_mxt_ts - disable IRQ across suspend	2020-01-04 19:12:36 +01:00
iommu	iommu/tegra-smmu: Fix page tables in > 4 GiB memory	2020-01-04 19:12:38 +01:00
ipack
irqchip	irqchip: ingenic: Error out if IRQ domain creation failed	2020-01-04 19:12:52 +01:00
isdn	staging: gigaset: add endpoint-type sanity check	2019-12-17 20:34:33 +01:00
leds	leds: lm3692x: Handle failure to probe the regulator	2020-01-04 19:12:43 +01:00
lightnvm	lightnvm: pblk: consider max hw sectors supported for max_write_pgs	2019-11-24 08:20:52 +01:00
macintosh	macintosh/windfarm_smu_sat: Fix debug output	2019-12-01 09:16:37 +01:00
mailbox	mailbox: imx: Fix Tx doorbell shutdown path	2020-01-04 19:13:17 +01:00
mcb
md	bcache: at least try to shrink 1 node in bch_mca_scan()	2020-01-04 19:12:58 +01:00
media	media: si470x-i2c: add missed operations in remove	2019-12-31 16:35:57 +01:00
memory	memory: omap-gpmc: Get the header of the enum	2019-12-05 09:20:29 +01:00
memstick	memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'	2019-10-29 09:20:07 +01:00
message
mfd	mfd: max8997: Enale irq-wakeup unconditionally	2019-12-01 09:16:57 +01:00
misc	altera-stapl: check for a null key before strcasecmp'ing it	2019-12-13 08:51:56 +01:00
mmc	mmc: sdhci: Add a quirk for broken command queuing	2019-12-31 16:36:36 +01:00
mtd	mtd: spear_smi: Fix Write Burst mode	2019-12-17 20:34:42 +01:00
mux
net	net: add bool confirm_neigh parameter for dst_ops.update_pmtu	2020-01-04 19:13:37 +01:00
nfc	NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error	2019-12-13 08:51:03 +01:00
ntb	ntb: intel: fix return value for ndev_vec_mask()	2019-12-01 09:17:13 +01:00
nubus
nvdimm	libnvdimm/btt: fix variable 'rc' set but not used	2020-01-04 19:13:00 +01:00
nvme	nvme: Discard workaround for non-conformant devices	2019-12-31 16:36:01 +01:00
nvmem	nvmem: imx-ocotp: reset error status on probe	2019-12-31 16:35:37 +01:00
of	of: unittest: fix memory leak in attach_node_and_children	2019-12-17 20:36:04 +01:00
opp	OPP: Return error on error from dev_pm_opp_get_opp_count()	2019-11-24 08:20:06 +01:00
oprofile
parisc	parisc: Disable HP HSC-PCI Cards to prevent kernel crash	2019-10-05 13:10:04 +02:00
parport	parport: load lowlevel driver if ports not found	2019-12-31 16:36:01 +01:00
pci	PCI: rpaphp: Correctly match ibm, my-drc-index to drc-name when using drc-info	2020-01-04 19:12:55 +01:00
pcmcia
perf	drivers/perf: arm_pmu: Fix failure path in PM notifier	2019-08-06 19:06:55 +02:00
phy	phy: qcom-usb-hs: Fix extcon double register after power cycle	2019-12-31 16:35:30 +01:00
pinctrl	pinctrl: amd: fix __iomem annotation in amd_gpio_irq_handler()	2019-12-31 16:35:35 +01:00
platform	platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes	2019-12-31 16:36:25 +01:00
pnp
power	power: supply: cpcap-battery: Fix signed counter sample register	2019-12-17 20:35:37 +01:00
powercap
pps	drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl	2019-08-04 09:30:56 +02:00
ps3
ptp	ptp: fix the race between the release of ptp_clock and cdev	2020-01-04 19:13:35 +01:00
pwm	pwm: Clear chip_data in pwm_put()	2019-12-05 09:21:29 +01:00
rapidio	drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings	2019-08-06 19:06:52 +02:00
ras
regulator	regulator: max8907: Fix the usage of uninitialized variable in max8907_regulator_probe()	2019-12-31 16:34:56 +01:00
remoteproc	remoteproc: qcom: q6v5: Fix a race condition on fatal crash	2019-11-24 08:20:29 +01:00
reset	reset: Fix memory leak in reset_control_array_put()	2019-12-05 09:19:36 +01:00
rpmsg	rpmsg: glink: Free pending deferred work on remove	2019-12-21 10:57:30 +01:00
rtc	rtc: disable uie before setting time and enable after	2019-12-17 20:35:43 +01:00
s390	s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR	2020-01-04 19:13:14 +01:00
sbus
scsi	scsi: iscsi: Don't send data to unbound connection	2020-01-04 19:13:05 +01:00
sfi
sh
siox
slimbus	slimbus: ngd: Fix build error on x86	2019-12-13 08:51:54 +01:00
sn
soc	soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}	2019-12-13 08:52:29 +01:00
soundwire	soundwire: intel: fix PDI/stream mapping for Bulk	2019-12-31 16:35:55 +01:00
spi	spi: st-ssc4: add missed pm_runtime_disable	2019-12-31 16:36:06 +01:00
spmi
ssb
staging	staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value	2019-12-31 16:36:26 +01:00
target	scsi: target: iscsi: Wait for all commands to finish before freeing a session	2020-01-04 19:13:06 +01:00
tc
tee	tee: optee: add missing of_node_put after of_device_is_available	2019-11-24 08:19:08 +01:00
thermal	thermal: Fix deadlock in thermal thermal_zone_device_check	2019-12-13 08:52:50 +01:00
thunderbolt	thunderbolt: Power cycle the router if NVM authentication fails	2019-12-05 09:21:27 +01:00
tty	vcs: prevent write access to vcsu devices	2019-12-13 08:52:51 +01:00
uio	vmbus: keep pointer to ring buffer page	2019-11-20 18:47:31 +01:00
usb	USB: EHCI: Do not return -EPIPE when hub is disconnected	2019-12-31 16:36:23 +01:00
uwb
vfio	vfio/pci: call irq_bypass_unregister_producer() before freeing irq	2019-12-21 10:57:37 +01:00
vhost	vhost/vsock: accept only packets with the right dst_cid	2020-01-04 19:13:36 +01:00
video	video/hdmi: Fix AVI bar unpack	2019-12-17 20:35:17 +01:00
virt	virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr	2019-11-06 13:06:04 +01:00
virtio	virtio-balloon: fix managed page counts when migrating pages between zones	2019-12-17 20:34:43 +01:00
visorbus
vlynq
vme
w1	w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size).	2019-12-01 09:16:22 +01:00
watchdog	watchdog: Fix the race between the release of watchdog_core_data and cdev	2020-01-04 19:13:01 +01:00
xen	xen/gntdev: Use select for DMA_SHARED_BUFFER	2019-12-31 16:35:50 +01:00
zorro
Kconfig
Makefile