twx-linux/include/linux
James Prestwood fcdb44d08a net: arp: introduce arp_evict_nocarrier sysctl parameter
This change introduces a new sysctl parameter, arp_evict_nocarrier.
When set (default) the ARP cache will be cleared on a NOCARRIER event.
This new option has been defaulted to '1' which maintains existing
behavior.

Clearing the ARP cache on NOCARRIER is relatively new, introduced by:

commit 859bd2ef1fc1110a8031b967ee656c53a6260a76
Author: David Ahern <dsahern@gmail.com>
Date:   Thu Oct 11 20:33:49 2018 -0700

    net: Evict neighbor entries on carrier down

The reason for this changes is to prevent the ARP cache from being
cleared when a wireless device roams. Specifically for wireless roams
the ARP cache should not be cleared because the underlying network has not
changed. Clearing the ARP cache in this case can introduce significant
delays sending out packets after a roam.

A user reported such a situation here:

https://lore.kernel.org/linux-wireless/CACsRnHWa47zpx3D1oDq9JYnZWniS8yBwW1h0WAVZ6vrbwL_S0w@mail.gmail.com/

After some investigation it was found that the kernel was holding onto
packets until ARP finished which resulted in this 1 second delay. It
was also found that the first ARP who-has was never responded to,
which is actually what caues the delay. This change is more or less
working around this behavior, but again, there is no reason to clear
the cache on a roam anyways.

As for the unanswered who-has, we know the packet made it OTA since
it was seen while monitoring. Why it never received a response is
unknown. In any case, since this is a problem on the AP side of things
all that can be done is to work around it until it is solved.

Some background on testing/reproducing the packet delay:

Hardware:
 - 2 access points configured for Fast BSS Transition (Though I don't
   see why regular reassociation wouldn't have the same behavior)
 - Wireless station running IWD as supplicant
 - A device on network able to respond to pings (I used one of the APs)

Procedure:
 - Connect to first AP
 - Ping once to establish an ARP entry
 - Start a tcpdump
 - Roam to second AP
 - Wait for operstate UP event, and note the timestamp
 - Start pinging

Results:

Below is the tcpdump after UP. It was recorded the interface went UP at
10:42:01.432875.

10:42:01.461871 ARP, Request who-has 192.168.254.1 tell 192.168.254.71, length 28
10:42:02.497976 ARP, Request who-has 192.168.254.1 tell 192.168.254.71, length 28
10:42:02.507162 ARP, Reply 192.168.254.1 is-at ac:86:74:55:b0:20, length 46
10:42:02.507185 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 1, length 64
10:42:02.507205 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 2, length 64
10:42:02.507212 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 3, length 64
10:42:02.507219 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 4, length 64
10:42:02.507225 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 5, length 64
10:42:02.507232 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 6, length 64
10:42:02.515373 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 1, length 64
10:42:02.521399 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 2, length 64
10:42:02.521612 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 3, length 64
10:42:02.521941 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 4, length 64
10:42:02.522419 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 5, length 64
10:42:02.523085 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 6, length 64

You can see the first ARP who-has went out very quickly after UP, but
was never responded to. Nearly a second later the kernel retries and
gets a response. Only then do the ping packets go out. If an ARP entry
is manually added prior to UP (after the cache is cleared) it is seen
that the first ping is never responded to, so its not only an issue with
ARP but with data packets in general.

As mentioned prior, the wireless interface was also monitored to verify
the ping/ARP packet made it OTA which was observed to be true.

Signed-off-by: James Prestwood <prestwoj@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-01 19:57:14 -07:00
..
amba
atomic
avf virtchnl: Use the BIT() macro for capability/offload flags 2021-10-29 13:11:53 -07:00
bcma
byteorder
can can: dev: add can_tdc_get_relative_tdco() helper function 2021-10-24 16:24:29 +02:00
ceph ceph: flush mdlog before umounting 2021-09-02 22:49:16 +02:00
clk
crush
decompress
device
dma
dsa net: dsa: tag_8021q: make dsa_8021q_{rx,tx}_vid take dp as argument 2021-10-21 12:44:07 +01:00
extcon
firmware
fpga
fsl
gpio
greybus
hsi
i3c
iio
input
irqchip
isdn
lockd Keep read and write fds with each nlm_file 2021-08-23 18:05:31 -04:00
mailbox
mdio
mfd ptp: clockmatrix: use rsmu driver to access i2c/spi bus 2021-09-27 12:16:48 +01:00
mlx4 mlx4: constify args for const dev_addr 2021-10-05 13:15:35 +01:00
mlx5 net/mlx5: Allow skipping counter refresh on creation 2021-10-29 13:53:28 -07:00
mmc Core: 2021-08-31 16:43:06 -07:00
mtd
mux
net/intel
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2021-09-03 16:20:37 -07:00
netfilter_arp netfilter: arp_tables: allow use of arpt_do_table as hookfn 2021-10-14 23:06:53 +02:00
netfilter_bridge netfilter: ebtables: allow use of ebt_do_table as hookfn 2021-10-14 23:06:53 +02:00
netfilter_ipv4 netfilter: iptables: allow use of ipt_do_table as hookfn 2021-10-14 23:06:53 +02:00
netfilter_ipv6 netfilter: ip6tables: allow use of ip6t_do_table as hookfn 2021-10-14 23:06:53 +02:00
pcs
perf KVM: arm64: Fix PMU probe ordering 2021-09-20 12:43:34 +01:00
phy
pinctrl
platform_data Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-07 15:24:06 -07:00
power ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
qed ethernet: constify references to netdev->dev_addr in drivers 2021-10-14 09:22:11 -07:00
raid
regulator regulator: Documentation fix for regulator error notification helper 2021-08-23 11:06:28 +01:00
remoteproc
reset
rpmsg
rtc
sched Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
soc marvell: octeontx2: build error: unknown type name 'u64' 2021-10-13 13:25:36 -07:00
soundwire sound updates for 5.15-rc1 2021-09-01 10:29:29 -07:00
spi spi: Fix deadlock when adding SPI controllers on SPI buses 2021-10-14 12:47:29 +01:00
ssb ssb: fix boolreturn.cocci warning 2021-08-29 14:47:42 +03:00
sunrpc NFS Client Updates for Linux 5.15 2021-09-04 10:25:26 -07:00
surface_aggregator
ulpi
unaligned
usb usb: core: hcd: Add support for deferring roothub registration 2021-09-14 10:41:30 +02:00
8250_pci.h
a.out.h
acct.h
acpi_dma.h
acpi_iort.h
acpi_mdio.h
acpi_pmtmr.h
acpi_viot.h
acpi.h Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic' 2021-08-30 19:30:37 +02:00
adb.h
adfs_fs.h
adreno-smmu-priv.h
adxl.h
aer.h
agp_backend.h
agpgart.h
ahci_platform.h
ahci-remap.h
aio.h
alarmtimer.h
alcor_pci.h
align.h
altera_jtaguart.h
altera_uart.h
amd-iommu.h
anon_inodes.h
apm_bios.h
apm-emulation.h
apple_bl.h
apple-gmux.h
arch_topology.h
arm_ffa.h
arm_sdei.h
arm-cci.h
arm-smccc.h qcom_scm: hide Kconfig symbol 2021-10-07 16:51:57 +02:00
armada-37xx-rwtm-mailbox.h
ascii85.h
asn1_ber_bytecode.h
asn1_decoder.h
asn1_encoder.h
asn1.h
assoc_array_priv.h
assoc_array.h
async_tx.h
async.h
ata_platform.h
ata.h
atalk.h
ath9k_platform.h
atm_tcp.h
atm.h
atmdev.h
atmel_pdc.h
atmel-isc-media.h
atmel-mci.h
atmel-ssc.h
atomic.h
attribute_container.h
audit.h
auto_dev-ioctl.h
auto_fs.h
auxiliary_bus.h
auxvec.h
average.h
backing-dev-defs.h writeback: fix bandwidth estimate for spiky workload 2021-09-03 09:58:10 -07:00
backing-dev.h Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
backlight.h
badblocks.h
balloon_compaction.h
bcd.h
bch.h
bcm47xx_nvram.h
bcm47xx_sprom.h
bcm47xx_wdt.h
bcm963xx_nvram.h
bcm963xx_tag.h
binfmts.h
bio.h for-5.15-tag 2021-08-31 09:41:22 -07:00
bit_spinlock.h
bitfield.h
bitmap.h lib: bitmap: Introduce node-aware alloc API 2021-10-26 19:30:38 -07:00
bitops.h
bitrev.h
bits.h
blk_types.h for-5.15-tag 2021-08-31 09:41:22 -07:00
blk-cgroup.h
blk-crypto.h
blk-mq-pci.h
blk-mq-rdma.h
blk-mq-virtio.h
blk-mq.h block: cleanup the lockdep handling in *alloc_disk 2021-08-23 12:54:30 -06:00
blk-pm.h
blkdev.h SCSI misc on 20210902 2021-09-02 15:09:46 -07:00
blkpg.h
blktrace_api.h
blockgroup_lock.h
bma150.h
bootconfig.h bootconfig: Rename xbc_node_find_child() to xbc_node_find_subkey() 2021-09-09 19:14:33 -04:00
bootmem_info.h
bottom_half.h
bpf_lirc.h
bpf_local_storage.h
bpf_lsm.h
bpf_trace.h
bpf_types.h bpf: Move BPF_MAP_TYPE for INODE_STORAGE and TASK_STORAGE outside of CONFIG_NET 2021-10-26 12:35:16 -07:00
bpf_verifier.h
bpf-cgroup.h inet: remove races in inet{6}_getname() 2021-10-27 18:20:21 -07:00
bpf-netns.h
bpf.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-28 10:43:58 -07:00
bpfilter.h
bpfptr.h bpf: Use kvmalloc for map keys in syscalls 2021-08-20 00:09:49 +02:00
brcmphy.h net: phy: bcm7xxx: Add EPHY entry for 7712 2021-10-24 13:42:28 +01:00
bsearch.h
bsg-lib.h
bsg.h
btf_ids.h bpf: Fix bpf-next builds without CONFIG_BPF_EVENTS 2021-08-25 19:41:39 -07:00
btf.h
btree-128.h
btree-type.h
btree.h
btrfs.h
buffer_head.h mm: fs: invalidate bh_lrus for only cold path 2021-09-24 16:13:35 -07:00
bug.h
build_bug.h
build-salt.h
buildid.h
bvec.h
c2port.h
cache.h
cacheinfo.h drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-01 10:29:10 +02:00
capability.h
cb710.h
cciss_ioctl.h
ccp.h
cdev.h
cdrom.h
cfag12864b.h
cfi.h
cgroup_rdma.h
cgroup_subsys.h
cgroup-defs.h bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
cgroup.h bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
circ_buf.h
cleancache.h
clk-provider.h Merge branch 'clk-frac-divider' into clk-next 2021-09-01 15:26:45 -07:00
clk.h
clkdev.h
clockchips.h
clocksource_ids.h
clocksource.h
cm4000_cs.h
cma.h
cn_proc.h
cnt32_to_63.h
coda.h
compaction.h mm: compaction: support triggering of proactive compaction by user 2021-09-03 09:58:17 -07:00
compat.h arch: remove compat_alloc_user_space 2021-09-08 15:32:35 -07:00
compiler_attributes.h Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
compiler_types.h Compiler Attributes improvements: 2021-09-12 16:09:26 -07:00
compiler-clang.h compiler.h: drop fallback overflow checkers 2021-09-13 10:18:28 -07:00
compiler-gcc.h Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
compiler-intel.h
compiler-version.h
compiler.h compiler.h: Introduce absolute_pointer macro 2021-09-15 12:04:28 -07:00
completion.h
component.h
configfs.h
connector.h
console_struct.h
console.h
consolemap.h
const.h
container.h
context_tracking_state.h
context_tracking.h
cookie.h
cordic.h
coredump.h
coresight-pmu.h
coresight-stm.h
coresight.h coresight: syscfg: Add API to activate and enable configurations 2021-08-18 22:33:28 +02:00
count_zeros.h
counter_enum.h
counter.h
cper.h
cpu_cooling.h
cpu_pm.h
cpu_rmap.h
cpu.h cpu/hotplug: Remove deprecated CPU-hotplug functions. 2021-09-11 00:41:21 +02:00
cpufeature.h
cpufreq.h Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2021-09-07 15:42:10 +02:00
cpuhotplug.h mm/migrate: fix CPUHP state to update node demotion order 2021-10-18 20:22:03 -10:00
cpuidle_haltpoll.h
cpuidle.h
cpumask.h cpumask: Omit terminating null byte in cpumap_print_{list,bitmask}_to_buf 2021-09-21 17:34:53 +02:00
cpuset.h cpuset: Cleanup cpuset_cpus_allowed_fallback() use in select_fallback_rq() 2021-08-20 12:32:59 +02:00
crash_core.h
crash_dump.h crash_dump: Make elfcorehdr address/size symbols always visible 2021-08-24 17:09:01 -05:00
crc4.h
crc7.h
crc8.h
crc16.h
crc32.h
crc32c.h
crc32poly.h
crc64.h
crc-ccitt.h
crc-itu-t.h
crc-t10dif.h
cred.h
crypto.h
cs5535.h
ctype.h
cuda.h
damon.h mm/damon: implement a debugfs-based user space interface 2021-09-08 11:50:24 -07:00
dasd_mod.h
davinci_emac.h
dax.h dax: remove bdev_dax_supported 2021-08-26 16:52:03 -07:00
dca.h
dcache.h
dccp.h
debug_locks.h
debugfs.h
debugobjects.h
delay.h
delayacct.h
delayed_call.h
dev_printk.h
devcoredump.h
devfreq_cooling.h
devfreq-event.h
devfreq.h
device_cgroup.h
device-mapper.h - Add DM infrastructure for IMA-based remote attestion. These changes 2021-08-31 14:55:09 -07:00
device.h Merge branch 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb 2021-09-03 10:34:44 -07:00
devm-helpers.h
devpts_fs.h
dfl.h
digsig.h
dim.h
dio.h
dirent.h
dlm_plock.h
dlm.h
dm9000.h
dm-bufio.h
dm-dirty-log.h
dm-io.h
dm-kcopyd.h
dm-region-hash.h
dma-buf-map.h
dma-buf.h
dma-direct.h
dma-direction.h
dma-fence-array.h
dma-fence-chain.h
dma-fence.h
dma-heap.h
dma-iommu.h
dma-map-ops.h dma-mapping: make the global coherent pool conditional 2021-08-19 09:02:39 +02:00
dma-mapping.h
dma-resv.h
dmaengine.h dmaengine: Extend the dma_slave_width for 128 bytes 2021-08-29 19:14:19 +05:30
dmapool.h
dmar.h
dmi.h
dnotify.h
dns_resolver.h
dqblk_qtree.h
dqblk_v1.h
dqblk_v2.h
drbd_genl_api.h
drbd_genl.h
drbd_limits.h
drbd.h
ds2782_battery.h
dtlk.h
dtpm.h
dw_apb_timer.h
dynamic_debug.h
dynamic_queue_limits.h
earlycpio.h
ecryptfs.h
edac.h
edd.h
eeprom_93cx6.h
eeprom_93xx46.h
efi_embedded_fw.h
efi-bgrt.h
efi.h
efs_vh.h
eisa.h
elevator.h
elf-fdpic.h
elf-randomize.h
elf.h
elfcore-compat.h
elfcore.h elfcore: correct reference to CONFIG_UML 2021-10-18 20:22:03 -10:00
elfnote-lto.h
elfnote.h
enclosure.h
energy_model.h PM: EM: fix kernel-doc comments 2021-09-07 21:17:28 +02:00
entry-common.h
entry-kvm.h entry: KVM: Allow use of generic KVM entry w/o full generic support 2021-08-19 11:19:41 +01:00
err.h
errname.h
errno.h nfs: don't allow reexport reclaims 2021-08-26 15:32:28 -04:00
error-injection.h
errqueue.h
errseq.h
etherdevice.h ethernet: add a helper for assigning port addresses 2021-10-19 12:46:24 +01:00
ethtool_netlink.h
ethtool.h ethtool: Add transceiver module extended state 2021-10-06 17:47:50 -07:00
eventfd.h eventfd: Make signal recursion protection a task bit 2021-08-28 01:33:02 +02:00
eventpoll.h ARM: 9108/1: oabi-compat: rework epoll_wait/epoll_pwait emulation 2021-08-20 11:39:26 +01:00
evm.h
export.h
exportfs.h nfs: don't atempt blocking locks on nfs reexports 2021-08-26 15:32:10 -04:00
ext2_fs.h
extable.h
extcon-provider.h
extcon.h
f2fs_fs.h
f75375s.h
falloc.h
fanotify.h
fault-inject-usercopy.h
fault-inject.h
fb.h
fbcon.h
fcdevice.h
fcntl.h
fd.h
fddidevice.h
fdtable.h
fec.h
fiemap.h
file.h file: Export receive_fd() to modules 2021-09-06 07:20:56 -04:00
fileattr.h
filter.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-28 10:43:58 -07:00
fips.h
firewire.h
firmware-map.h
firmware.h
fixp-arith.h
flat.h
flex_proportions.h
font.h
fortify-string.h
freelist.h
freezer.h
frontswap.h
fs_context.h
fs_enet_pd.h
fs_parser.h
fs_pin.h
fs_stack.h
fs_struct.h
fs_types.h
fs_uart_pd.h
fs.h Merge branch 'work.gfs2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-09-09 12:45:26 -07:00
fscache-cache.h fscache: Remove the object list procfile 2021-08-27 13:34:02 +01:00
fscache.h fscache: Use refcount_t for the cookie refcount instead of atomic_t 2021-08-27 13:34:03 +01:00
fscrypt.h
fsi-occ.h
fsi-sbefifo.h
fsi.h
fsl_devices.h
fsl_hypervisor.h
fsl_ifc.h
fsl-diu-fb.h
fsldma.h
fsnotify_backend.h
fsnotify.h
fsverity.h
ftrace_irq.h
ftrace.h
futex.h
fwnode_mdio.h
fwnode.h driver core: fw_devlink: Add support for FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD 2021-09-23 19:26:54 +02:00
gameport.h
gcd.h
genalloc.h
generic-radix-tree.h
genetlink.h
genhd.h block: drain file system I/O on del_gendisk 2021-10-15 21:02:50 -06:00
genl_magic_func.h
genl_magic_struct.h
getcpu.h
gfp.h
glob.h
gnss.h
goldfish.h
gpio_keys.h
gpio-pxa.h
gpio.h
greybus.h
hardirq.h
hash.h
hashtable.h
hdlc.h
hdlcdrv.h
hdmi.h
hid-debug.h
hid-roccat.h
hid-sensor-hub.h
hid-sensor-ids.h
hid.h
hidden.h
hiddev.h
hidraw.h
highmem-internal.h highmem: don't disable preemption on RT in kmap_atomic() 2021-09-08 11:50:24 -07:00
highmem.h mm: remove flush_kernel_dcache_page 2021-09-03 09:58:13 -07:00
highuid.h
hil_mlc.h
hil.h
hippidevice.h
hmm.h
host1x.h
hp_sdc.h
hpet.h
hrtimer_defs.h
hrtimer.h
htcpld.h
huge_mm.h
hugetlb_cgroup.h hugetlb: fix hugetlb cgroup refcounting during vma split 2021-09-03 09:58:16 -07:00
hugetlb_inline.h
hugetlb.h mm/hugetlb: initialize hugetlb_usage in mm_init 2021-09-08 18:45:53 -07:00
hw_breakpoint.h
hw_random.h
hwmon-sysfs.h
hwmon-vid.h
hwmon.h
hwspinlock.h
hyperv.h
hypervisor.h
i2c-algo-bit.h
i2c-algo-pca.h
i2c-algo-pcf.h
i2c-dev.h
i2c-mux.h
i2c-smbus.h
i2c.h
i8042.h
i8253.h
icmp.h
icmpv6.h
idle_inject.h
idr.h
ieee80211.h Quite a few changes: 2021-10-22 10:20:56 -07:00
ieee802154.h
if_arp.h
if_bridge.h
if_eql.h
if_ether.h
if_fddi.h
if_hsr.h
if_link.h
if_ltalk.h
if_macvlan.h
if_phonet.h
if_pppol2tp.h
if_pppox.h
if_rmnet.h
if_tap.h
if_team.h
if_tun.h
if_tunnel.h
if_vlan.h
igmp.h
ihex.h
ima.h
imx-media.h
in6.h
in.h
indirect_call_wrapper.h
inet_diag.h
inet.h
inetdevice.h net: arp: introduce arp_evict_nocarrier sysctl parameter 2021-11-01 19:57:14 -07:00
init_ohci1394_dma.h
init_syscalls.h
init_task.h
init.h
initrd.h
inotify.h
input.h
instrumentation.h
instrumented.h
integrity.h
intel_rapl.h
intel_th.h
intel-iommu.h iommu/vt-d: Update the virtual command related registers 2021-08-19 10:41:08 +02:00
intel-ish-client-if.h
intel-svm.h iommu/vt-d: Allow devices to have more than 32 outstanding PRs 2021-08-19 10:41:08 +02:00
interconnect-provider.h
interconnect.h
interrupt.h
interval_tree_generic.h
interval_tree.h
io_uring.h io_uring: remove files pointer in cancellation functions 2021-08-23 13:10:37 -06:00
io-64-nonatomic-hi-lo.h
io-64-nonatomic-lo-hi.h
io-mapping.h
io-pgtable.h Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next 2021-08-20 17:14:35 +02:00
io.h
ioam6_genl.h
ioam6_iptunnel.h
ioam6.h
ioasid.h
iocontext.h
iomap.h
iommu-helper.h
iommu.h IOMMU Updates for Linux v5.15 2021-09-03 10:44:35 -07:00
iopoll.h
ioport.h
ioprio.h block: fix default IO priority handling 2021-08-18 07:23:15 -06:00
iova.h
ip.h
ipack.h
ipc_namespace.h
ipc.h
ipmi_smi.h
ipmi.h
ipv6_route.h
ipv6.h ipv6: move inet6_sk(sk)->rx_dst_cookie to sk->sk_rx_dst_cookie 2021-10-25 18:02:12 -07:00
irq_poll.h
irq_sim.h
irq_work.h
irq.h
irqbypass.h
irqchip.h
irqdesc.h
irqdomain.h irqdomain: Change the type of 'size' in __irq_domain_add() to be consistent 2021-09-22 14:29:32 +01:00
irqflags.h
irqhandler.h
irqnr.h
irqreturn.h
isa.h
isapnp.h
iscsi_boot_sysfs.h
iscsi_ibft.h
iversion.h
jbd2.h
jhash.h
jiffies.h
journal-head.h
joystick.h
jump_label_ratelimit.h
jump_label.h
jz4740-adc.h
jz4780-nemc.h
kallsyms.h
kasan-checks.h
kasan-tags.h
kasan.h
kbd_diacr.h
kbd_kern.h
kbuild.h
kconfig.h
kcore.h
kcov.h
kcsan-checks.h
kcsan.h
kdb.h
kdebug.h
kdev_t.h
kern_levels.h
kernel_read_file.h
kernel_stat.h
kernel-page-flags.h
kernel.h isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
kernelcapi.h
kernfs.h
kexec.h
key-type.h
key.h
keyboard.h
keyctl.h
keyslot-manager.h
kfence.h kfence: fix is_kfence_address() for addresses below KFENCE_POOL_SIZE 2021-08-20 11:31:42 -07:00
kfifo.h
kgdb.h
khugepaged.h
klist.h
kmemleak.h
kmod.h
kmsg_dump.h
kobj_map.h
kobject_ns.h
kobject.h
kprobes.h
kref.h
ks0108.h
ks8842.h
ks8851_mll.h
ksm.h
kstrtox.h
kthread.h
ktime.h
kvm_dirty_ring.h
kvm_host.h KVM: Remove tlbs_dirty 2021-09-23 11:01:12 -04:00
kvm_irqfd.h
kvm_para.h
kvm_types.h KVM: stats: Add VM stat for remote tlb flush requests 2021-09-06 06:30:45 -04:00
l2tp.h
lantiq.h
lapb.h
latencytop.h
lcd.h
lcm.h
led-class-flash.h
led-class-multicolor.h
led-lm3530.h
leds-bd2802.h
leds-lp3944.h
leds-lp3952.h
leds-pca9532.h
leds-regulator.h
leds-ti-lmu-common.h
leds.h
libata.h libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD. 2021-09-03 08:06:02 -06:00
libfdt_env.h
libfdt.h
libgcc.h
libnvdimm.h
libps2.h
license.h
limits.h
linear_range.h
linkage.h
linkmode.h
linux_logo.h
lis3lv02d.h
list_bl.h
list_lru.h
list_nulls.h
list_sort.h
list.h
litex.h
livepatch.h
llc.h
llist.h
local_lock_internal.h
local_lock.h
lockdep_types.h
lockdep.h
lockref.h
log2.h
logic_iomem.h
logic_pio.h
lp.h
lru_cache.h
lsm_audit.h
lsm_hook_defs.h
lsm_hooks.h
lz4.h
lzo.h
mailbox_client.h
mailbox_controller.h
maple.h
marvell_phy.h
math64.h
math.h
mbcache.h
mbus.h
mc6821.h
mc146818rtc.h
mcb.h
mdev.h
mdio-bitbang.h
mdio-gpio.h
mdio-mux.h
mdio.h net: mdio: Add helper functions for accessing MDIO devices 2021-10-24 13:40:33 +01:00
mei_cl_bus.h
mem_encrypt.h
memblock.h memblock: introduce saner 'memblock_free_ptr()' interface 2021-09-14 13:23:22 -07:00
memcontrol.h Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
memfd.h
memory_hotplug.h mm/memory_hotplug: memory group aware "auto-movable" online policy 2021-09-08 11:50:23 -07:00
memory.h mm/migrate: add CPU hotplug to demotion #ifdef 2021-10-18 20:22:02 -10:00
mempolicy.h mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY 2021-09-03 09:58:17 -07:00
mempool.h
memregion.h
memremap.h
memstick.h
mhi.h Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
micrel_phy.h net: phy: micrel: Add support for LAN8804 PHY 2021-09-29 10:54:50 +01:00
microchipphy.h
migrate_mode.h
migrate.h mm/debug: sync up latest migrate_reason to migrate_reason_names 2021-09-24 16:13:35 -07:00
mii_timestamper.h
mii.h net: mii: make mii_ethtool_gset() return void 2021-08-19 13:06:53 +01:00
min_heap.h
minmax.h
misc_cgroup.h
miscdevice.h
mISDNdsp.h
mISDNhw.h
mISDNif.h isystem: trim/fixup stdarg.h and other headers 2021-08-19 09:02:55 +09:00
mm_inline.h
mm_types_task.h
mm_types.h page_pool: disable dma mapping support for 32-bit arch with 64-bit DMA 2021-10-15 10:54:20 +01:00
mm.h Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
mman.h mm: ignore MAP_DENYWRITE in ksys_mmap_pgoff() 2021-09-03 18:42:01 +02:00
mmap_lock.h Networking fixes for 5.15-rc2, including fixes from bpf. 2021-09-16 13:05:42 -07:00
mmdebug.h
mmiotrace.h
mmu_context.h sched: Introduce task_cpu_possible_mask() to limit fallback rq selection 2021-08-20 12:32:58 +02:00
mmu_notifier.h
mmzone.h Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
mnt_namespace.h
mod_devicetable.h PCI / VFIO: Add 'override_only' support for VFIO PCI sub system 2021-08-26 10:36:51 -06:00
module_signature.h
module.h
moduleloader.h
moduleparam.h
most.h
mount.h
moxtet.h
mpage.h
mpi.h
mpls_iptunnel.h
mpls.h
mroute6.h
mroute_base.h
mroute.h
msdos_fs.h
msdos_partition.h
msg.h
msi.h genirq/msi: Move MSI sysfs handling from PCI to MSI core 2021-08-24 09:16:20 +02:00
mtio.h
mutex.h
mv643xx_eth.h
mv643xx_i2c.h
mv643xx.h
mvebu-pmsu.h
mxm-wmi.h
namei.h namei: add mapping aware lookup helper 2021-08-23 13:19:12 +02:00
nd.h
ndctl.h
net.h
netdev_features.h
netdevice.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2021-10-18 14:05:25 +01:00
netfilter_bridge.h
netfilter_defs.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter_netdev.h netfilter: Introduce egress hook 2021-10-14 23:06:28 +02:00
netfilter.h
netfs.h netfs: Move cookie debug ID to struct netfs_cache_resources 2021-08-25 15:20:25 +01:00
netlink.h netlink: remove netlink_broadcast_filtered 2021-10-05 13:07:03 +01:00
netpoll.h
nfs3.h
nfs4.h
nfs_fs_i.h
nfs_fs_sb.h NFSv4 introduce max_connect mount options 2021-08-27 16:37:17 -04:00
nfs_fs.h NFSv4 introduce max_connect mount options 2021-08-27 16:37:17 -04:00
nfs_iostat.h
nfs_page.h
nfs_ssc.h
nfs_xdr.h
nfs.h
nfsacl.h
nitro_enclaves.h
nl802154.h
nls.h
nmi.h
node.h
nodemask.h
nospec.h
notifier.h
ns_common.h
nsc_gpio.h
nsproxy.h
ntb_transport.h
ntb.h
nubus.h
numa.h
nvme-fc-driver.h
nvme-fc.h
nvme-rdma.h
nvme-tcp.h
nvme.h
nvmem-consumer.h nvmem: core: Add stubs for nvmem_cell_read_variable_le_u32/64 if !CONFIG_NVMEM 2021-09-14 09:02:50 +02:00
nvmem-provider.h
nvram.h
objagg.h
objtool.h
of_address.h
of_clk.h
of_device.h
of_dma.h
of_fdt.h
of_gpio.h
of_graph.h
of_iommu.h
of_irq.h
of_mdio.h
of_net.h net: of: fix stub of_net helpers for CONFIG_NET=n 2021-10-14 15:59:04 -07:00
of_pci.h
of_pdt.h
of_platform.h
of_reserved_mem.h
of.h gpio updates for v5.15 2021-09-07 12:27:27 -07:00
oid_registry.h oid_registry: Add OIDs for missing Spnego auth mechanisms to Macs 2021-08-25 15:43:26 -05:00
olpc-ec.h
omap-dma.h
omap-gpmc.h
omap-iommu.h
omap-mailbox.h
omapfb.h
once_lite.h
once.h include/linux/once.h: fix trivia typo Not -> Note 2021-09-08 11:50:25 -07:00
oom.h
openvswitch.h
osq_lock.h
overflow.h compiler.h: drop fallback overflow checkers 2021-09-13 10:18:28 -07:00
packing.h net: update NXP copyright text 2021-09-17 13:52:17 +01:00
padata.h
page_counter.h
page_ext.h mm/idle_page_tracking: make PG_idle reusable 2021-09-08 11:50:24 -07:00
page_idle.h mm/idle_page_tracking: make PG_idle reusable 2021-09-08 11:50:24 -07:00
page_owner.h
page_ref.h
page_reporting.h
page-flags-layout.h
page-flags.h Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
page-isolation.h
pageblock-flags.h
pagemap.h Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
pagevec.h
pagewalk.h
panic_notifier.h
panic.h
parman.h
parport_pc.h
parport.h
parser.h
part_stat.h
pata_arasan_cf_data.h
patchkey.h
path.h
pch_dma.h
pci_hotplug.h PCI: Change the type of probe argument in reset functions 2021-08-18 17:32:42 -05:00
pci_ids.h pci-v5.15-changes 2021-09-07 19:13:42 -07:00
pci-acpi.h PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus 2021-09-02 17:59:58 +02:00
pci-ats.h
pci-dma-compat.h
pci-ecam.h
pci-ep-cfs.h
pci-epc.h PCI: endpoint: Add virtual function number in pci_epc ops 2021-08-19 14:13:28 +01:00
pci-epf.h pci-v5.15-changes 2021-09-07 19:13:42 -07:00
pci-p2pdma.h
pci.h pci-v5.15-changes 2021-09-07 19:13:42 -07:00
pcs-lynx.h
pda_power.h
pe.h
percpu_counter.h
percpu-defs.h
percpu-refcount.h
percpu-rwsem.h
percpu.h
perf_event.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-07 15:24:06 -07:00
perf_regs.h
personality.h
pfn_t.h
pfn.h
pgtable.h
phonet.h
phy_fixed.h
phy_led_triggers.h
phy.h net: phy: add phy_interface_t bitmap support 2021-10-26 15:10:36 +01:00
phylink.h net: phylink: use supported_interfaces for phylink validation 2021-10-26 15:10:36 +01:00
pid_namespace.h
pid.h
pim.h
pipe_fs_i.h pipe: avoid unnecessary EPOLLET wakeups under normal loads 2021-08-18 11:39:46 -07:00
pkeys.h x86/fault: Fix wrong signal when vsyscall fails with pkey 2021-09-20 22:28:47 +02:00
pktcdvd.h
pl320-ipc.h
platform_device.h driver core: platform: Remove platform_device_add_properties() 2021-08-18 16:08:11 +02:00
platform_profile.h
pldmfw.h
plist.h
pm_clock.h PM: runtime: add devm_pm_clk_create helper 2021-08-26 11:28:07 -07:00
pm_domain.h
pm_opp.h
pm_qos.h
pm_runtime.h PM: runtime: add devm_pm_runtime_enable helper 2021-08-26 11:27:51 -07:00
pm_wakeirq.h
pm_wakeup.h
pm-trace.h
pm.h
pmbus.h
pmu.h
pnfs_osd_xdr.h
pnp.h
poison.h
poll.h
posix_acl_xattr.h
posix_acl.h ovl: enable RCU'd ->get_acl() 2021-08-18 22:08:24 +02:00
posix-clock.h
posix-timers.h
power_supply.h
powercap.h
ppp_channel.h
ppp_defs.h
ppp-comp.h
pps_kernel.h
pr.h
prandom.h
preempt.h
prefetch.h
prime_numbers.h
printk.h Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
prmt.h
proc_fs.h
proc_ns.h
processor.h
profile.h
projid.h
property.h eth: fwnode: add a helper for loading netdev->dev_addr 2021-10-07 13:39:51 +01:00
pruss_driver.h
psci.h
pseudo_fs.h
psi_types.h
psi.h
psp-sev.h
psp-tee.h
pstore_blk.h
pstore_ram.h
pstore_zone.h
pstore.h
ptdump.h
pti.h
ptp_classify.h
ptp_clock_kernel.h
ptp_kvm.h
ptp_pch.h
ptr_ring.h
ptrace.h
purgatory.h
pvclock_gtod.h
pwm_backlight.h
pwm.h pwm: Make pwmchip_remove() return void 2021-09-02 21:38:56 +02:00
pxa2xx_ssp.h
pxa168_eth.h
qcom_scm.h qcom_scm: hide Kconfig symbol 2021-10-07 16:51:57 +02:00
qcom-geni-se.h
qnx6_fs.h
quota.h
quotaops.h
radix-tree.h
raid_class.h
ramfs.h
random.h
randomize_kstack.h
range.h
ras.h
ratelimit_types.h
ratelimit.h
rational.h
rbtree_augmented.h
rbtree_latch.h
rbtree_types.h
rbtree.h
rcu_node_tree.h
rcu_segcblist.h
rcu_sync.h
rculist_bl.h
rculist_nulls.h
rculist.h
rcupdate_trace.h
rcupdate_wait.h
rcupdate.h
rcutiny.h
rcutree.h
rcuwait.h
reboot-mode.h
reboot.h
reciprocal_div.h
refcount.h
regmap.h Merge series "Use raw spinlocks in the ls-extirq driver" from Vladimir Oltean <vladimir.oltean@nxp.com>: 2021-08-26 13:40:35 +01:00
regset.h
relay.h
remoteproc.h
resctrl.h
reset-controller.h
reset.h
resource_ext.h
resource.h
restart_block.h
rfkill.h
rhashtable-types.h
rhashtable.h
ring_buffer.h
rio_drv.h
rio_ids.h
rio_regs.h
rio.h
rmap.h
rmi.h
rndis.h
rodata_test.h
root_dev.h
rpmsg.h
rslib.h
rtc.h
rtmutex.h
rtnetlink.h
rtsx_common.h
rtsx_pci.h
rtsx_usb.h
rwbase_rt.h
rwlock_api_smp.h
rwlock_rt.h
rwlock_types.h
rwlock.h
rwsem.h locking/rwsem: Add missing __init_rwsem() for PREEMPT_RT 2021-09-02 22:07:17 +02:00
s3c_adc_battery.h
sbitmap.h
scatterlist.h lib/scatterlist: Fix wrong update of orig_nents 2021-08-24 19:52:40 -03:00
scc.h
sched_clock.h
sched.h sched: Always inline is_percpu_thread() 2021-10-01 13:57:57 +02:00
scmi_protocol.h
scpi_protocol.h
screen_info.h
scs.h
sctp.h
scx200_gpio.h
scx200.h
sdb.h
seccomp.h
secretmem.h mm/secretmem: fix NULL page->mapping dereference in page_is_secretmem() 2021-10-18 20:22:03 -10:00
securebits.h
security.h
sed-opal.h
seg6_genl.h
seg6_hmac.h
seg6_iptunnel.h
seg6_local.h
seg6.h
selection.h
sem.h
semaphore.h
seq_buf.h
seq_file_net.h
seq_file.h
seqlock.h
seqno-fence.h
serdev.h
serial_8250.h
serial_bcm63xx.h
serial_core.h
serial_max3100.h
serial_s3c.h
serial_sci.h
serial.h
serio.h
set_memory.h
sfp.h
sh_clk.h
sh_dma.h
sh_eth.h
sh_intc.h
sh_timer.h
shdma-base.h
shm.h
shmem_fs.h huge tmpfs: shmem_is_huge(vma, inode, index) 2021-09-03 09:58:12 -07:00
shrinker.h
signal_types.h
signal.h
signalfd.h
siox.h
siphash.h
sizes.h
skb_array.h
skbuff.h net: avoid double accounting for pure zerocopy skbs 2021-11-01 16:33:27 -07:00
skmsg.h skmsg: Extract and reuse sk_msg_is_readable() 2021-10-26 12:29:33 -07:00
slab_def.h
slab.h
slimbus.h
slub_def.h mm, slub: convert kmem_cpu_slab protection to local_lock 2021-09-04 10:22:01 +02:00
sm501-regs.h
sm501.h
smc91x.h
smc911x.h
smp_types.h
smp.h
smpboot.h
smsc911x.h
smscphy.h
sock_diag.h
socket.h mctp: Implement extended addressing 2021-10-26 14:58:45 +01:00
sockptr.h
sonet.h
sony-laptop.h
sonypi.h
sort.h
sound.h
soundcard.h
spinlock_api_smp.h
spinlock_api_up.h
spinlock_rt.h
spinlock_types_raw.h
spinlock_types_up.h
spinlock_types.h
spinlock_up.h
spinlock.h
splice.h
spmi.h
sram.h
srcu.h
srcutiny.h
srcutree.h
ssbi.h
stackdepot.h
stackleak.h
stackprotector.h
stacktrace.h
start_kernel.h
stat.h
statfs.h
static_call_types.h
static_call.h
static_key.h
stdarg.h isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
stddef.h
stm.h
stmmac.h
stmp3xxx_rtc_wdt.h
stmp_device.h
stop_machine.h
string_helpers.h
string.h isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
stringhash.h
stringify.h
sungem_phy.h
sunserialcore.h
sunxi-rsb.h
superhyway.h
surface_acpi_notify.h
suspend.h
svga.h
sw842.h
swab.h
swait.h
swap_cgroup.h
swap_slots.h
swap.h mm/vmscan: remove unneeded return value of kswapd_run() 2021-09-03 09:58:17 -07:00
swapfile.h
swapops.h
swiotlb.h
switchtec.h
sxgbe_platform.h
sync_core.h
sync_file.h
synclink.h
sys_soc.h
sys.h
syscall_user_dispatch.h
syscalls.h ARM development updates for 5.15: 2021-09-09 13:25:49 -07:00
syscore_ops.h
sysctl.h
sysfb.h
sysfs.h
syslog.h
sysrq.h
sysv_fs.h
t10-pi.h
task_io_accounting_ops.h
task_io_accounting.h
task_work.h
taskstats_kern.h
tboot.h
tc.h
tca6416_keypad.h
tcp.h
tee_drv.h
textsearch_fsm.h
textsearch.h
tfrc.h
thermal.h
thread_info.h
threads.h pid: cleanup the stale comment mentioning pidmap_init(). 2021-09-08 11:50:28 -07:00
thunderbolt.h
ti_wilink_st.h
ti-emif-sram.h
tick.h
tifm.h
timb_dma.h
timb_gpio.h
time32.h
time64.h time: Handle negative seconds correctly in timespec64_to_ns() 2021-09-08 17:44:26 +02:00
time_namespace.h
time.h
timecounter.h
timekeeper_internal.h
timekeeping.h
timer.h
timerfd.h
timeriomem-rng.h
timerqueue.h
timex.h
tnum.h
topology.h
torture.h
toshiba.h
tpm_command.h
tpm_eventlog.h
tpm.h
trace_clock.h
trace_events.h Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
trace_recursion.h tracing: Have all levels of checks prevent recursion 2021-10-18 18:12:09 -04:00
trace_seq.h
trace.h
tracefs.h
tracehook.h entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
tracepoint-defs.h
tracepoint.h
transport_class.h
ts-nbus.h
tsacct_kern.h
tty_buffer.h
tty_driver.h
tty_flip.h
tty_ldisc.h
tty_port.h
tty.h
typecheck.h
types.h
u64_stats_sync.h u64_stats: Introduce u64_stats_set() 2021-10-18 12:54:41 +01:00
uacce.h
uaccess.h arch: remove compat_alloc_user_space 2021-09-08 15:32:35 -07:00
ucb1400.h
ucs2_string.h
udp.h
uidgid.h
uio_driver.h
uio.h Revert "iov_iter: track truncated size" 2021-09-15 09:22:35 -06:00
umh.h
unicode.h
units.h Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
uprobes.h
usb_usual.h
usb.h
usbdevice_fs.h
user_namespace.h ucounts: Fix signal ucount refcounting 2021-10-18 16:02:30 -05:00
user-return-notifier.h
user.h
userfaultfd_k.h userfaultfd: change mmap_changing to atomic 2021-09-03 09:58:16 -07:00
usermode_driver.h
util_macros.h
uts.h
utsname.h
uuid.h
vbox_utils.h
vdpa.h vdpa: Support transferring virtual addressing during DMA mapping 2021-09-06 07:20:57 -04:00
verification.h
vermagic.h
vexpress.h
vfio_pci_core.h vfio/pci: Introduce vfio_pci_core.ko 2021-08-26 10:36:51 -06:00
vfio.h
vfs.h
vga_switcheroo.h
vgaarb.h
vhost_iotlb.h vhost-iotlb: Add an opaque pointer for vhost IOTLB 2021-09-06 07:20:57 -04:00
via_i2c.h
via-core.h
via-gpio.h
via.h
videodev2.h
virtio_byteorder.h
virtio_caif.h
virtio_config.h
virtio_console.h
virtio_dma_buf.h
virtio_net.h
virtio_pci_modern.h
virtio_ring.h
virtio_vsock.h
virtio.h
visorbus.h
vlynq.h
vm_event_item.h mm/vmscan: add page demotion counter 2021-09-03 09:58:16 -07:00
vmacache.h
vmalloc.h mm: move ioremap_page_range to vmalloc.c 2021-09-08 11:50:24 -07:00
vme.h
vmpressure.h mm/vmpressure: replace vmpressure_to_css() with vmpressure_to_memcg() 2021-09-03 09:58:17 -07:00
vmstat.h
vmw_vmci_api.h
vmw_vmci_defs.h
vringh.h
vt_buffer.h
vt_kern.h
vt.h
vtime.h
w1-gpio.h
w1.h
wait_bit.h
wait.h Scheduler changes for v5.15 are: 2021-08-30 13:42:10 -07:00
watch_queue.h
watchdog.h watchdog: introduce watchdog_dev_suspend/resume 2021-08-22 10:28:08 +02:00
win_minmax.h
wireless.h
wkup_m3_ipc.h
wl12xx.h
wm97xx.h
wmi.h
workqueue.h workqueue: annotate alloc_workqueue() as printf 2021-09-13 07:53:27 -10:00
writeback.h Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
ww_mutex.h
wwan.h
xarray.h
xattr.h
xxhash.h
xz.h
yam.h
z2_battery.h
zconf.h
zlib.h
zorro.h
zpool.h
zsmalloc.h
zstd.h
zutil.h