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Sam Protsenko c29a889a73 UPSTREAM: ppp: Move PFC decompression to PPP generic layer 
Extract "Protocol" field decompression code from transport protocols to
PPP generic layer, where it actually belongs. As a consequence, this
patch fixes incorrect place of PFC decompression in L2TP driver (when
it's not PPPOX_BOUND) and also enables this decompression for other
protocols, like PPPoE.

Protocol field decompression also happens in PPP Multilink Protocol
code and in PPP compression protocols implementations (bsd, deflate,
mppe). It looks like there is no easy way to get rid of that, so it was
decided to leave it as is, but provide those cases with appropriate
comments instead.

Changes in v2:
  - Fix the order of checking skb data room and proto decompression
  - Remove "inline" keyword from ppp_decompress_proto()
  - Don't split line before function name
  - Prefix ppp_decompress_proto() function with "__"
  - Add ppp_decompress_proto() function with skb data room checks
  - Add description for introduced functions
  - Fix comments (as per review on mailing list)

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

(cherry picked from commit 7fb1b8ca8f)
Bug: 116424816
Change-Id: Iece88d4104e9a7acc9bfe098a20ba4efcedecad6
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
2019-01-23 20:44:34 +00:00
..
accessibility
acpi ACPI/IORT: Fix rc_dma_get_range() 2019-01-16 22:04:34 +01:00
amba
android This is the 4.19.7 stable release 2018-12-06 10:34:09 +01:00
ata libata: whitelist all SAMSUNG MZ7KM* solid-state disks 2018-12-21 14:15:20 +01:00
atm
auxdisplay auxdisplay: charlcd: fix x/y command parsing 2019-01-13 09:51:03 +01:00
base This is the 4.19.15 stable release 2019-01-13 10:25:45 +01:00
bcma
block This is the 4.19.17 stable release 2019-01-23 08:46:58 +01:00
bluetooth Bluetooth: hci_qca: Remove hdev dereference in qca_close(). 2018-11-13 11:08:25 -08:00
bus
cdrom cdrom: fix improper type cast, which can leat to information leak. 2018-11-21 09:19:12 +01:00
char This is the 4.19.14 stable release 2019-01-09 18:55:03 +01:00
clk clk: sunxi-ng: Use u64 for calculation of NM rate 2019-01-09 17:38:44 +01:00
clocksource clocksource/drivers/arc_timer: Utilize generic sched_clock 2019-01-09 17:38:42 +01:00
connector
cpufreq This is the 4.19.16 stable release 2019-01-16 22:17:03 +01:00
cpuidle Merge branch eas-dev into experimental/android-4.19 2018-12-05 09:48:08 -08:00
crypto crypto: talitos - fix ablkcipher for CONFIG_VMAP_STACK 2019-01-22 21:40:32 +01:00
dax mm, devm_memremap_pages: fix shutdown handling 2019-01-13 09:51:04 +01:00
dca
devfreq
dio
dma dmaengine: cppi41: delete channel from pending list when stop channel 2018-12-13 09:16:20 +01:00
dma-buf
edac EDAC, skx_edac: Fix logical channel intermediate decoding 2018-11-13 11:08:44 -08:00
eisa
energy_model ANDROID: drivers: Introduce a legacy Energy Model loading driver 2018-10-26 11:54:46 +01:00
extcon
firewire
firmware This is the 4.19.6 stable release 2018-12-06 09:32:46 +01:00
fmc
fpga fpga: bridge: fix obvious function documentation error 2018-09-30 08:49:55 -07:00
fsi fsi: master-ast-cf: select GENERIC_ALLOCATOR 2018-12-17 09:24:35 +01:00
gnss gnss: sirf: fix activation retry handling 2018-12-13 09:16:22 +01:00
gpio gpio: mvebu: only fail on missing clk if pwm is actually to be used 2019-01-13 09:51:03 +01:00
gpu drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock 2019-01-22 21:40:38 +01:00
hid HID: ite: Add USB id match for another ITE based keyboard rfkill key quirk 2019-01-13 09:50:56 +01:00
hsi
hv x86, hyperv: remove PCI dependency 2019-01-13 09:51:00 +01:00
hwmon hwmon: (w83795) temp4_type has writable permission 2018-12-17 09:24:33 +01:00
hwspinlock
hwtracing intel_th: msu: Fix an off-by-one in attribute store 2019-01-13 09:51:10 +01:00
i2c i2c: dev: prevent adapter retries and timeout being set as minus value 2019-01-16 22:04:34 +01:00
ide ide: pmac: add of_node_put() 2018-12-21 14:15:18 +01:00
idle
iio iio: dac: ad5686: fix bit shift read register 2019-01-13 09:51:08 +01:00
infiniband RDMA/vmw_pvrdma: Return the correct opcode when creating WR 2019-01-22 21:40:34 +01:00
input Input: synaptics - enable SMBus for HP EliteBook 840 G4 2019-01-13 09:51:03 +01:00
iommu iommu/vt-d: Handle domain agaw being less than iommu agaw 2019-01-13 09:51:09 +01:00
ipack
irqchip irqchip/pdc: Setup all edge interrupts as rising edge at GIC 2018-11-13 11:08:34 -08:00
isdn isdn: fix kernel-infoleak in capi_unlocked_ioctl 2019-01-09 17:38:31 +01:00
leds leds: pwm: silently error out on EPROBE_DEFER 2019-01-13 09:51:08 +01:00
lightnvm lightnvm: pblk: fix race condition on metadata I/O 2018-11-13 11:08:21 -08:00
macintosh
mailbox mailbox: PCC: handle parse error 2018-11-13 11:08:18 -08:00
mcb
md This is the 4.19.11 stable release 2018-12-19 19:30:07 +01:00
media media: vb2: be sure to unlock mutex on errors 2019-01-22 21:40:38 +01:00
memory
memstick
message
mfd mfd: tps6586x: Handle interrupts on suspend 2019-01-22 21:40:33 +01:00
misc This is the 4.19.15 stable release 2019-01-13 10:25:45 +01:00
mmc This is the 4.19.17 stable release 2019-01-23 08:46:58 +01:00
mtd mtd: rawnand: qcom: fix memory corruption that causes panic 2019-01-16 22:04:34 +01:00
mux mux: adgs1408: use the correct MODULE_LICENSE 2018-10-12 17:36:39 +02:00
net UPSTREAM: ppp: Move PFC decompression to PPP generic layer 2019-01-23 20:44:34 +00:00
nfc NFC: nfcmrvl_uart: fix OF child-node lookup 2018-11-13 11:08:48 -08:00
ntb
nubus
nvdimm mm, devm_memremap_pages: fix shutdown handling 2019-01-13 09:51:04 +01:00
nvme nvmet-rdma: fix response use after free 2018-12-21 14:15:25 +01:00
nvmem nvmem: check the return value of nvmem_add_cells() 2018-11-13 11:08:35 -08:00
of This is the 4.19.17 stable release 2019-01-23 08:46:58 +01:00
opp ANDROID: PM / OPP: Document power estimation helper 2018-12-20 21:14:14 +00:00
oprofile
parisc
parport
pci PCI: dwc: Move interrupt acking into the proper callback 2019-01-16 22:04:35 +01:00
pcmcia pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges 2018-11-13 11:08:17 -08:00
perf drivers/perf: hisi: Fixup one DDRC PMU register offset 2019-01-13 09:51:10 +01:00
phy phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845 2018-12-17 09:24:34 +01:00
pinctrl pinctrl: meson: fix pull enable register calculation 2019-01-13 09:50:54 +01:00
platform platform/x86: acerhdf: Add BIOS entry for Gateway LT31 v1.3307 2018-11-27 16:13:00 +01:00
pnp
power power: supply: olpc_battery: correct the temperature units 2019-01-13 09:51:10 +01:00
powercap
pps
ps3
ptp ptp: fix Spectre v1 vulnerability 2018-10-17 22:00:22 -07:00
pwm
rapidio
ras
regulator regulator: fix crash caused by null driver data 2018-09-20 09:04:51 -07:00
remoteproc remoteproc: qcom: q6v5: Propagate EPROBE_DEFER 2018-11-13 11:08:52 -08:00
reset
rpmsg rpmsg: smd: fix memory leak on channel create 2018-11-13 11:08:55 -08:00
rtc rtc: m41t80: Correct alarm month range with RTC reads 2019-01-09 17:38:48 +01:00
s390 scsi: zfcp: fix posting too many status read buffers leading to adapter shutdown 2019-01-13 09:51:03 +01:00
sbus drivers/sbus/char: add of_node_put() 2018-12-21 14:15:17 +01:00
scsi scsi: sd: Fix cache_type_store() 2019-01-22 21:40:32 +01:00
sfi
sh
siox
slimbus slimbus: ngd: mark PM functions as __maybe_unused 2018-12-19 19:19:49 +01:00
sn
soc soc: ti: QMSS: Fix usage of irq_set_affinity_hint 2018-11-21 09:19:18 +01:00
soundwire
spi spi: bcm2835: Unbreak the build of esoteric configs 2019-01-09 17:38:49 +01:00
spmi
ssb
staging staging: rtl8188eu: Fix module loading from tasklet for WEP encryption 2019-01-16 22:04:29 +01:00
target scsi: target: iscsi: cxgbit: fix csk leak 2019-01-22 21:40:30 +01:00
tc TC: Set DMA masks for devices 2018-11-13 11:08:51 -08:00
tee
thermal ANDROID: thermal: cpu_cooling: Use related_cpus for energy model cpumask check 2019-01-09 16:50:57 +00:00
thunderbolt thunderbolt: Prevent root port runtime suspend during NVM upgrade 2018-12-17 09:24:36 +01:00
tty tty: Don't hold ldisc lock in tty_reopen() if ldisc present 2019-01-22 21:40:28 +01:00
uio uio: Fix an Oops on load 2018-11-27 16:13:09 +01:00
usb This is the 4.19.16 stable release 2019-01-16 22:17:03 +01:00
uwb
vfio vfio/type1: Fix unmap overflow off-by-one 2019-01-16 22:04:34 +01:00
vhost vhost: make sure used idx is seen before log in vhost_add_used_n() 2019-01-09 17:38:34 +01:00
video omap2fb: Fix stack memory disclosure 2019-01-22 21:40:34 +01:00
virt
virtio
visorbus
vlynq
vme
w1 w1: omap-hdq: fix missing bus unregister at removal 2018-11-13 11:08:48 -08:00
watchdog
xen xen: Fix x86 sched_clock() interface for xen 2019-01-22 21:40:32 +01:00
zorro
Kconfig ANDROID: drivers: Introduce a legacy Energy Model loading driver 2018-10-26 11:54:46 +01:00
Makefile ANDROID: drivers: Introduce a legacy Energy Model loading driver 2018-10-26 11:54:46 +01:00