Tom Parkin 4cf476ced4 ppp: add PPPIOCBRIDGECHAN and PPPIOCUNBRIDGECHAN ioctls ... This new ioctl pair allows two ppp channels to be bridged together: frames arriving in one channel are transmitted in the other channel and vice versa. The practical use for this is primarily to support the L2TP Access Concentrator use-case. The end-user session is presented as a ppp channel (typically PPPoE, although it could be e.g. PPPoA, or even PPP over a serial link) and is switched into a PPPoL2TP session for transmission to the LNS. At the LNS the PPP session is terminated in the ISP's network. When a PPP channel is bridged to another it takes a reference on the other's struct ppp_file. This reference is dropped when the channels are unbridged, which can occur either explicitly on userspace calling the PPPIOCUNBRIDGECHAN ioctl, or implicitly when either channel in the bridge is unregistered. In order to implement the channel bridge, struct channel is extended with a new field, 'bridge', which points to the other struct channel making up the bridge. This pointer is RCU protected to avoid adding another lock to the data path. To guard against concurrent writes to the pointer, the existing struct channel lock 'upl' coverage is extended rather than adding a new lock. The 'upl' lock is used to protect the existing unit pointer. Since the bridge effectively replaces the unit (they're mutually exclusive for a channel) it makes coding easier to use the same lock to cover them both. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2020-12-10 13:57:36 -08:00
..
accessibility	TTY fixes for 5.10-rc5	2020-11-22 11:52:10 -08:00
acpi	arm64 fixes for -rc6	2020-11-27 10:44:59 -08:00
amba
android	task_work: cleanup notification modes	2020-10-17 15:05:30 -06:00
ata	libata-5.10-2020-10-30	2020-10-30 14:51:01 -07:00
atm	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-19 19:08:46 -08:00
auxdisplay
base	driver core: auxiliary bus: minor coding style tweaks	2020-12-04 13:30:59 +01:00
bcma
block	loop: Fix occasional uevent drop	2020-11-12 13:59:04 -07:00
bluetooth	Bluetooth: btusb: Add workaround for remote-wakeup issues with Barrot 8041a02 fake CSR controllers	2020-12-07 17:01:54 +02:00
bus	wireless-drivers-next patches for v5.11	2020-12-04 10:56:37 -08:00
cdrom
char	Char/Misc driver fixes for 5.10-rc4	2020-11-15 10:15:17 -08:00
clk	clk: imx8m: fix bus critical clk registration	2020-11-04 17:13:12 -08:00
clocksource	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
connector
counter	counter/ti-eqep: Fix regmap max_register	2020-11-01 17:17:31 +00:00
cpufreq	Merge branch 'cpufreq/arm/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm	2020-11-23 12:55:01 +01:00
cpuidle	cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE	2020-11-16 13:24:32 +01:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-06 17:33:38 -08:00
dax	mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports	2020-11-22 10:48:22 -08:00
dca
devfreq
dio
dma	dmaengine fixes for v5.10-rc5	2020-11-20 10:23:49 -08:00
dma-buf	dma-mapping updates for 5.10	2020-10-15 14:43:29 -07:00
edac
eisa
extcon
firewire
firmware	More EFI fixes for v5.10-rc:	2020-11-29 10:18:53 -08:00
fpga
fsi
gnss
gpio	gpio: sifive: Fix SiFive gpio probe	2020-11-11 09:53:09 +01:00
gpu	A bunch of fixes for vc4 fixing some coexistence issue between wifi and	2020-11-27 09:39:51 +10:00
greybus
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-11-22 14:36:06 -08:00
hsi
hv	hyperv-fixes for 5.10-rc5	2020-11-16 15:02:33 -08:00
hwmon	hwmon: (amd_energy) modify the visibility of the counters	2020-11-13 06:46:20 -08:00
hwspinlock
hwtracing	coresight: cti: Initialize dynamic sysfs attributes	2020-10-29 20:10:25 +01:00
i2c	i2c: designware: slave should do WRITE_REQUESTED before WRITE_RECEIVED	2020-11-06 16:02:00 +01:00
i3c	* Fix DAA for the pre-reserved address case	2020-10-17 11:01:01 -07:00
ide
idle	intel_idle: Fix intel_idle() vs tracing	2020-11-24 16:47:36 +01:00
iio	iio: accel: kxcjk1013: Add support for KIOX010A ACPI DSM for setting tablet-mode	2020-11-14 17:33:47 +00:00
infiniband	Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux	2020-12-07 18:36:21 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-11-17 12:00:40 -08:00
interconnect	interconnect: fix memory trashing in of_count_icc_providers()	2020-11-20 16:01:35 +02:00
iommu	iommu fixes for -rc6	2020-11-27 10:41:19 -08:00
ipack
irqchip	irqchip fixes for Linux 5.10, take #2	2020-11-25 00:56:28 +01:00
isdn	net: don't include ethtool.h from netdevice.h	2020-11-23 17:27:04 -08:00
leds
lightnvm	lightnvm: fix out-of-bounds write to array devices->info[]	2020-10-16 09:28:45 -06:00
macintosh	powerpc updates for 5.10	2020-10-16 12:21:15 -07:00
mailbox	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
mcb
md	- Improve DM core's bio splitting to use blk_max_size_offset(). Also	2020-10-14 15:05:38 -07:00
media	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
memory	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
memstick
message	scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()	2020-10-26 16:57:18 -04:00
mfd	- New Drivers	2020-10-14 15:56:58 -07:00
misc	habanalabs/gaudi: fix missing code in ECC handling	2020-11-23 20:08:43 +02:00
mmc	mmc: sdhci-of-arasan: Issue DLL reset explicitly	2020-11-17 12:44:44 +01:00
most
mtd	mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()	2020-11-20 12:31:26 +01:00
mux
net	ppp: add PPPIOCBRIDGECHAN and PPPIOCUNBRIDGECHAN ioctls	2020-12-10 13:57:36 -08:00
nfc	nfc: s3fwrn5: Remove hard coded interrupt trigger type from the i2c module	2020-12-09 16:49:46 -08:00
ntb	Bug fixes for v5.10	2020-10-25 11:12:31 -07:00
nubus
nvdimm
nvme	nvme: fix memory leak freeing command effects	2020-11-14 09:57:55 +01:00
nvmem
of	of/address: Fix of_node memory leak in of_dma_is_coherent	2020-11-11 17:10:16 -06:00
opp	opp: Reduce the size of critical section in _opp_table_kref_release()	2020-10-27 13:21:03 +05:30
oprofile
parisc
parport
pci	PCI: mvebu: Fix duplicate resource requests	2020-11-04 13:55:30 -06:00
pcmcia
perf
phy	phy: mediatek: fix spelling mistake in Kconfig "veriosn" -> "version"	2020-11-16 13:21:28 +05:30
pinctrl	intel-pinctrl for v5.10-2	2020-11-10 15:35:41 +01:00
platform	platform/x86: touchscreen_dmi: Add info for the Irbis TW118 tablet	2020-11-26 15:49:16 +01:00
pnp	PNP: fix kernel-doc markups	2020-10-27 19:23:04 +01:00
power	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
powercap	Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2020-11-10 10:02:31 -08:00
pps
ps3
ptp	ptp: clockmatrix: deprecate firmware older than 4.8.7	2020-12-09 15:00:55 -08:00
pwm	pwm: sl28cpld: fix getting driver data in pwm callbacks	2020-12-03 09:57:37 -08:00
rapidio	rapidio: fix the missed put_device() for rio_mport_add_riodev	2020-10-16 11:11:22 -07:00
ras
regulator	regulator: ti-abb: Fix array out of bound read access on the first transition	2020-11-18 17:59:24 +00:00
remoteproc	remoteproc updates for v5.10	2020-10-22 12:56:33 -07:00
reset	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
rpmsg	rpmsg updates for 5.10	2020-10-22 12:58:21 -07:00
rtc	RTC for 5.10	2020-10-21 11:22:08 -07:00
s390	s390/qeth: make qeth_qdio_handle_aob() more robust	2020-12-07 06:55:21 -08:00
sbus
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
sfi
sh
siox
slimbus
soc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
soundwire
spi	spi: dw: Fix spi registration for controllers overriding CS	2020-11-25 12:54:05 +00:00
spmi
ssb
staging	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
target	SCSI fixes on 20201120	2020-11-20 16:24:28 -08:00
tc
tee	ARM: SoC fixes for v5.10, part 3	2020-11-27 14:48:03 -08:00
thermal	thermal: ti-soc-thermal: Disable the CPU PM notifier for OMAP4430	2020-11-12 12:30:29 +01:00
thunderbolt	thunderbolt: Add support for Intel Tiger Lake-H	2020-11-06 16:39:11 +03:00
tty	serial: ar933x_uart: disable clk on error handling path in probe	2020-11-12 09:41:07 +01:00
uio	uio: Fix use-after-free in uio_unregister_device()	2020-11-09 18:54:30 +01:00
usb	usb: typec: stusb160x: fix power-opmode property with typec-power-opmode	2020-11-27 14:44:26 +01:00
vdpa	Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux	2020-12-07 18:36:21 -08:00
vfio	vfio/pci: Bypass IGD init in case of -ENODEV	2020-11-03 11:07:40 -07:00
vhost	vhost_vdpa: return -EFAULT if copy_to_user() fails	2020-12-02 04:36:40 -05:00
video	hyperv-fixes for 5.10-rc6	2020-11-23 15:29:03 -08:00
virt	nitro_enclaves: Fixup type and simplify logic of the poll mask setup	2020-11-09 18:20:36 +01:00
virtio	vhost,vdpa,virtio: cleanups, fixes	2020-10-23 11:00:57 -07:00
visorbus
vlynq
vme
w1
watchdog	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
xen	swiotlb: remove the tbl_dma_addr argument to swiotlb_tbl_map_single	2020-11-02 10:10:39 -05:00
zorro
Kconfig
Makefile	vdpa: mlx5: fix vdpa/vhost dependencies	2020-12-02 04:09:56 -05:00