Commit Graph

55896 Commits

Author SHA1 Message Date
Vladimir Oltean
d27656d02d docs: net: dsa: sja1105: document limitations of tc-flower rule VLAN awareness
After change "net: dsa: tag_8021q: replace the SVL bridging with
VLAN-unaware IVL bridging", tag_8021q enforces two different pvids on a
port, depending on whether it is standalone or in a VLAN-unaware bridge.

Up until now, there was a single pvid, represented by
dsa_tag_8021q_rx_vid(), and that was used as the VLAN for VLAN-unaware
virtual link rules, regardless of whether the port was bridged or
standalone.

To keep VLAN-unaware virtual links working, we need to follow whether
the port is in a bridge or not, and update the VLAN ID from those rules.

In fact we can't fully do that. Depending on whether the switch is
VLAN-aware or not, we can accept Virtual Link rules with just the MAC
DA, or with a MAC DA and a VID. So we already deny changes to the VLAN
awareness of the switch. But the VLAN awareness may also change as a
result of joining or leaving a bridge.

One might say we could just allow the following: a port may leave a
VLAN-unaware bridge while it has VLAN-unaware VL (tc-flower) rules, and
the driver will update those with the new tag_8021q pvid for standalone
mode, but the driver won't accept joining a bridge at all while VL rules
were installed in standalone mode. This is sort of a compromise made
because leaving a bridge is an operation that cannot be vetoed.
But this sort of setup change is not fully supported, either: as
mentioned, VLAN filtering changes can also be triggered by leaving a
bridge, therefore, the existing veto we have in place for turning VLAN
filtering off with VLAN-aware VL rules active still isn't fully
effective.

I really don't know how to deal with this in a way that produces
predictable behavior for user space. Since at the moment, keeping this
feature fully functional on constellation changes (not changing the
tag_8021q port pvid when joining a bridge) is blocking progress for the
DSA FDB isolation, I'd rather document it as a (potentially temporary)
limitation and go on without it.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-27 11:06:13 +00:00
Jakub Kicinski
aaa25a2fa7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/testing/selftests/net/mptcp/mptcp_join.sh
  34aa6e3bcc ("selftests: mptcp: add ip mptcp wrappers")

  857898eb4b ("selftests: mptcp: add missing join check")
  6ef84b1517 ("selftests: mptcp: more robust signal race test")
https://lore.kernel.org/all/20220221131842.468893-1-broonie@kernel.org/

drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
  fb7e76ea3f ("net/mlx5e: TC, Skip redundant ct clear actions")
  c63741b426 ("net/mlx5e: Fix MPLSoUDP encap to use MPLS action information")

  09bf979232 ("net/mlx5e: TC, Move pedit_headers_action to parse_attr")
  84ba8062e3 ("net/mlx5e: Test CT and SAMPLE on flow attr")
  efe6f961cd ("net/mlx5e: CT, Don't set flow flag CT for ct clear flow")
  3b49a7edec ("net/mlx5e: TC, Reject rules with multiple CT actions")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-24 17:54:25 -08:00
Marc Kleine-Budde
58212e03e5 dt-binding: can: m_can: include common CAN controller bindings
Since commit

| 1f9234401c ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the m_can
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-4-mkl@pengutronix.de
Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-02-24 08:26:03 +01:00
Marc Kleine-Budde
bffd5217ca dt-binding: can: m_can: fix indention of table in bosch,mram-cfg description
This patch fixes the indention of the table in the description of the
bosch,mram-cfg property.

Link: https://lore.kernel.org/all/20220217101111.2291151-1-mkl@pengutronix.de
Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-02-24 08:26:03 +01:00
Marc Kleine-Budde
edd056a109 dt-binding: can: m_can: list Chandrasekar Ramakrishnan as maintainer
Since Sriram Dash's email bounces, change the maintainer entry to
Chandrasekar Ramakrishnan. Chandrasekar Ramakrishnan is already listed
as a maintainer in the MAINTAINERS file.

Link: https://lore.kernel.org/all/20220217113839.2311417-1-mkl@pengutronix.de
Cc: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-02-24 08:26:03 +01:00
Marc Kleine-Budde
d931686dc2 dt-binding: can: sun4i_can: include common CAN controller bindings
Since commit

| 1f9234401c ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the sun4i_can
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-3-mkl@pengutronix.de
Cc: Evgeny Boger <boger@wirenboard.com>
Cc: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-02-24 08:26:03 +01:00
Marc Kleine-Budde
66224f6656 dt-binding: can: mcp251xfd: include common CAN controller bindings
Since commit

| 1f9234401c ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the mcp251xfd
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-2-mkl@pengutronix.de
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Thomas Kopp <thomas.kopp@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-02-24 08:26:03 +01:00
Subbaraya Sundeep
1241e329ce ethtool: add support to set/get completion queue event size
Add support to set completion queue event size via ethtool -G
parameter and get it via ethtool -g parameter.

~ # ./ethtool -G eth0 cqe-size 512
~ # ./ethtool -g eth0
Ring parameters for eth0:
Pre-set maximums:
RX:             1048576
RX Mini:        n/a
RX Jumbo:       n/a
TX:             1048576
Current hardware settings:
RX:             256
RX Mini:        n/a
RX Jumbo:       n/a
TX:             4096
RX Buf Len:             2048
CQE Size:                128

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-23 20:33:05 -08:00
Linus Torvalds
91318b29a8 Merge tag 'devicetree-fixes-for-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:

 - Update some maintainers email addresses

 - Fix handling of elfcorehdr reservation for crash dump kernel

 - Fix unittest expected warnings text

* tag 'devicetree-fixes-for-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: update Roger Quadros email
  MAINTAINERS: sifive: drop Yash Shah
  of/fdt: move elfcorehdr reservation early for crash dump kernel
  of: unittest: update text of expected warnings
2022-02-23 17:25:22 -08:00
Krzysztof Kozlowski
0c0822bcb7 dt-bindings: update Roger Quadros email
Emails to Roger Quadros TI account bounce with:
  550 Invalid recipient <rogerq@ti.com> (#5.1.1)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Roger Quadros <rogerq@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220221100701.48593-1-krzysztof.kozlowski@canonical.com
2022-02-22 16:06:31 -06:00
Krzysztof Kozlowski
34f3eda8c8 MAINTAINERS: sifive: drop Yash Shah
Emails to Yash Shah bounce with "The email account that you tried to
reach does not exist.", so drop him from all maintainer entries.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220214082349.162973-1-krzysztof.kozlowski@canonical.com
2022-02-22 15:15:39 -06:00
Hangbin Liu
129e3c1bab bonding: add new option ns_ip6_target
This patch add a new bonding option ns_ip6_target, which correspond
to the arp_ip_target. With this we set IPv6 targets and send IPv6 NS
request to determine the health of the link.

For other related options like the validation, we still use
arp_validate, and will change to ns_validate later.

Note: the sysfs configuration support was removed based on
https://lore.kernel.org/netdev/8863.1645071997@famine

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-21 12:13:45 +00:00
Linus Torvalds
70d2bec7c5 Merge tag 'for-v5.17-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply fixes from Sebastian Reichel:
 "Three regression fixes for the 5.17 cycle:

   - build warning fix for power-supply documentation

   - pointer size fix in cw2015 battery driver

   - OOM handling in bq256xx charger driver"

* tag 'for-v5.17-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: supply: bq256xx: Handle OOM correctly
  power: supply: core: fix application of sizeof to pointer
  power: supply: fix table problem in sysfs-class-power
2022-02-20 11:07:46 -08:00
Matt Johnston
6881e493b0 dt-bindings: net: New binding mctp-i2c-controller
Used to define a local endpoint to communicate with MCTP peripherals
attached to an I2C bus. This I2C endpoint can communicate with remote
MCTP devices on the I2C bus.

In the example I2C topology below (matching the second yaml example) we
have MCTP devices on busses i2c1 and i2c6. MCTP-supporting busses are
indicated by the 'mctp-controller' DT property on an I2C bus node.

A mctp-i2c-controller I2C client DT node is placed at the top of the
mux topology, since only the root I2C adapter will support I2C slave
functionality.
                                               .-------.
                                               |eeprom |
    .------------.     .------.               /'-------'
    | adapter    |     | mux  --@0,i2c5------'
    | i2c1       ----.*|      --@1,i2c6--.--.
    |............|    \'------'           \  \  .........
    | mctp-i2c-  |     \                   \  \ .mctpB  .
    | controller |      \                   \  '.0x30   .
    |            |       \  .........        \  '.......'
    | 0x50       |        \ .mctpA  .         \ .........
    '------------'         '.0x1d   .          '.mctpC  .
                            '.......'          '.0x31   .
                                                '.......'
(mctpX boxes above are remote MCTP devices not included in the DT at
present, they can be hotplugged/probed at runtime. A DT binding for
specific fixed MCTP devices could be added later if required)

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-19 16:18:49 +00:00
Linus Torvalds
2848551bc6 Merge tag 'sound-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "A collection of small patches, mostly for old and new regressions and
  device-specific fixes.

   - Regression fixes regarding ALSA core SG-buffer helpers

   - Regression fix for Realtek HD-audio mutex deadlock

   - Regression fix for USB-audio PM resume error

   - More coverage of ASoC core control API notification fixes

   - Old regression fixes for HD-audio probe mask

   - Fixes for ASoC Realtek codec work handling

   - Other device-specific quirks / fixes"

* tag 'sound-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
  ASoC: intel: skylake: Set max DMA segment size
  ASoC: SOF: hda: Set max DMA segment size
  ALSA: hda: Set max DMA segment size
  ALSA: hda/realtek: Fix deadlock by COEF mutex
  ALSA: usb-audio: Don't abort resume upon errors
  ALSA: hda: Fix missing codec probe on Shenker Dock 15
  ALSA: hda: Fix regression on forced probe mask option
  ALSA: hda/realtek: Add quirk for Legion Y9000X 2019
  ALSA: usb-audio: revert to IMPLICIT_FB_FIXED_DEV for M-Audio FastTrack Ultra
  ASoC: wm_adsp: Correct control read size when parsing compressed buffer
  ASoC: qcom: Actually clear DMA interrupt register for HDMI
  ALSA: memalloc: invalidate SG pages before sync
  ALSA: memalloc: Fix dma_need_sync() checks
  MAINTAINERS: update cros_ec_codec maintainers
  ASoC: rt5682: do not block workqueue if card is unbound
  ASoC: rt5668: do not block workqueue if card is unbound
  ASoC: rt5682s: do not block workqueue if card is unbound
  ASoC: tas2770: Insert post reset delay
  ASoC: Revert "ASoC: mediatek: Check for error clk pointer"
  ASoC: amd: acp: Set gpio_spkr_en to None for max speaker amplifer in machine driver
  ...
2022-02-18 09:20:52 -08:00
Jakub Kicinski
6b5567b1b2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-17 11:44:20 -08:00
Takashi Iwai
5948342a52 Merge tag 'asoc-fix-v5.17-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.18

More fixes that have arrived in the past few -rcs, plus a MAINTAINERS
update.  The biggest update here is the fix for control change
notifications in ASoC generic controls found by mixer-test.
2022-02-14 17:55:39 +01:00
Joseph CHAMG
759856e961 dt-bindings: net: Add Davicom dm9051 SPI ethernet controller
This is a new yaml base data file for configure davicom dm9051 with
device tree

Signed-off-by: Joseph CHAMG <josright123@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-14 11:18:46 +00:00
Linus Torvalds
c5d714aa6d Merge tag 'irq-urgent-2022-02-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "Interrupt chip driver fixes:

   - Don't install an hotplug notifier for GICV3-ITS on systems which do
     not need it to prevent a warning in the notifier about inconsistent
     state

   - Add the missing device tree matching for the T-HEAD PLIC variant so
     the related SoC is properly supported"

* tag 'irq-urgent-2022-02-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/sifive-plic: Add missing thead,c900-plic match string
  dt-bindings: update riscv plic compatible string
  irqchip/gic-v3-its: Skip HP notifier when no ITS is registered
2022-02-13 10:06:40 -08:00
Linus Torvalds
83e3966411 Merge tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
 "This is a fairly large set of bugfixes, most of which had been sent a
  while ago but only now made it into the soc tree:

  Maintainer file updates:

   - Claudiu Beznea now co-maintains the at91 soc family, replacing
     Ludovic Desroches.

   - Michael Walle maintains the sl28cpld drivers

   - Alain Volmat and Raphael Gallais-Pou take over some drivers for ST
     platforms

   - Alim Akhtar is an additional reviewer for Samsung platforms

  Code fixes:

   - Op-tee had a problem with object lifetime that needs a slightly
     complex fix, as well as another bug with error handling.

   - Several minor issues for the OMAP platform, including a regression
     with the timer

   - A Kconfig change to fix a build-time issue on Intel SoCFPGA

  Device tree fixes:

   - The Amlogic Meson platform fixes a boot regression on am1-odroid, a
     spurious interrupt, and a problem with reserved memory regions

   - In the i.MX platform, several bug fixes are needed to make devices
     work correctly: SD card detection, alarmtimer, and sound card on
     some board. One patch for the GPU got in there by accident and gets
     reverted again.

   - TI K3 needs a fix for J721S2 serial port numbers

   - ux500 needs a fix to mount the SD card as root on the Skomer phone"

* tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (46 commits)
  Revert "arm64: dts: imx8mn-venice-gw7902: disable gpu"
  arm64: Remove ARCH_VULCAN
  MAINTAINERS: add myself as a maintainer for the sl28cpld
  MAINTAINERS: add IRC to ARM sub-architectures and Devicetree
  MAINTAINERS: arm: samsung: add Git tree and IRC
  ARM: dts: Fix boot regression on Skomer
  ARM: dts: spear320: Drop unused and undocumented 'irq-over-gpio' property
  soc: aspeed: lpc-ctrl: Block error printing on probe defer cases
  docs/ABI: testing: aspeed-uart-routing: Escape asterisk
  MAINTAINERS: update drm/stm drm/sti and cec/sti maintainers
  MAINTAINERS: Update Benjamin Gaignard maintainer status
  ARM: socfpga: fix missing RESET_CONTROLLER
  arm64: dts: meson-sm1-odroid: fix boot loop after reboot
  arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610
  arm64: dts: meson-g12: add ATF BL32 reserved-memory region
  arm64: dts: meson-gx: add ATF BL32 reserved-memory region
  arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO domain for GPIOE_2
  arm64: dts: meson-sm1-odroid: use correct enable-gpio pin for tf-io regulator
  arm64: dts: meson-g12b-odroid-n2: fix typo 'dio2133'
  optee: use driver internal tee_context for some rpc
  ...
2022-02-11 13:40:03 -08:00
David S. Miller
b96a79253f Merge tag 'wireless-next-2022-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
wireless-next patches for v5.18

First set of patches for v5.18, with both wireless and stack patches.
rtw89 now has AP mode support and wcn36xx has survey support. But
otherwise pretty normal.

Major changes:

ath11k

* add LDPC FEC type in 802.11 radiotap header

* enable RX PPDU stats in monitor co-exist mode

wcn36xx

* implement survey reporting

brcmfmac

* add CYW43570 PCIE device

rtw88

* rtw8821c: enable RFE 6 devices

rtw89

* AP mode support

mt76

* mt7916 support

* background radar detection support
2022-02-11 14:19:23 +00:00
Marek Behún
066c4b6ba0 dt-bindings: phy: Add tx-p2p-microvolt property binding
Common PHYs and network PCSes often have the possibility to specify
peak-to-peak voltage on the differential pair - the default voltage
sometimes needs to be changed for a particular board.

Add properties `tx-p2p-microvolt` and `tx-p2p-microvolt-names` for this
purpose. The second property is needed to specify the mode for the
corresponding voltage in the `tx-p2p-microvolt` property, if the voltage
is to be used only for speficic mode. More voltage-mode pairs can be
specified.

Example usage with only one voltage (it will be used for all supported
PHY modes, the `tx-p2p-microvolt-names` property is not needed in this
case):

  tx-p2p-microvolt = <915000>;

Example usage with voltages for multiple modes:

  tx-p2p-microvolt = <915000>, <1100000>, <1200000>;
  tx-p2p-microvolt-names = "2500base-x", "usb", "pcie";

Add these properties into a separate file phy/transmit-amplitude.yaml,
which should be referenced by any binding that uses it.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-11 11:21:34 +00:00
Luiz Angelo Daros de Luca
429c83c78a dt-bindings: net: dsa: realtek: convert to YAML schema, add MDIO
Schema changes:

- support for mdio-connected switches (mdio driver), recognized by
  checking the presence of property "reg"
- new compatible strings for rtl8367s and rtl8367rb
- "interrupt-controller" was not added as a required property. It might
  still work polling the ports when missing.

Examples changes:

- renamed "switch_intc" to make it unique between examples
- removed "dsa-mdio" from mdio compatible property
- renamed phy@0 to ethernet-phy@0 (not tested with real HW)
  phy@ requires #phy-cells

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-11 11:12:04 +00:00
Jakub Kicinski
5b91c5cc0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-10 17:29:56 -08:00
Linus Torvalds
ff00854812 Merge tag 'linux-kselftest-kunit-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit fixes from Shuah Khan:
 "Fixes to the test and usage documentation"

* tag 'linux-kselftest-kunit-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  Documentation: KUnit: Fix usage bug
  kunit: fix missing f in f-string in run_checks.py
2022-02-10 15:39:59 -08:00
Jakub Kicinski
1127170d45 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2022-02-09

We've added 126 non-merge commits during the last 16 day(s) which contain
a total of 201 files changed, 4049 insertions(+), 2215 deletions(-).

The main changes are:

1) Add custom BPF allocator for JITs that pack multiple programs into a huge
   page to reduce iTLB pressure, from Song Liu.

2) Add __user tagging support in vmlinux BTF and utilize it from BPF
   verifier when generating loads, from Yonghong Song.

3) Add per-socket fast path check guarding from cgroup/BPF overhead when
   used by only some sockets, from Pavel Begunkov.

4) Continued libbpf deprecation work of APIs/features and removal of their
   usage from samples, selftests, libbpf & bpftool, from Andrii Nakryiko
   and various others.

5) Improve BPF instruction set documentation by adding byte swap
   instructions and cleaning up load/store section, from Christoph Hellwig.

6) Switch BPF preload infra to light skeleton and remove libbpf dependency
   from it, from Alexei Starovoitov.

7) Fix architecture-agnostic macros in libbpf for accessing syscall
   arguments from BPF progs for non-x86 architectures,
   from Ilya Leoshkevich.

8) Rework port members in struct bpf_sk_lookup and struct bpf_sock to be
   of 16-bit field with anonymous zero padding, from Jakub Sitnicki.

9) Add new bpf_copy_from_user_task() helper to read memory from a different
   task than current. Add ability to create sleepable BPF iterator progs,
   from Kenny Yu.

10) Implement XSK batching for ice's zero-copy driver used by AF_XDP and
    utilize TX batching API from XSK buffer pool, from Maciej Fijalkowski.

11) Generate temporary netns names for BPF selftests to avoid naming
    collisions, from Hangbin Liu.

12) Implement bpf_core_types_are_compat() with limited recursion for
    in-kernel usage, from Matteo Croce.

13) Simplify pahole version detection and finally enable CONFIG_DEBUG_INFO_DWARF5
    to be selected with CONFIG_DEBUG_INFO_BTF, from Nathan Chancellor.

14) Misc minor fixes to libbpf and selftests from various folks.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (126 commits)
  selftests/bpf: Cover 4-byte load from remote_port in bpf_sk_lookup
  bpf: Make remote_port field in struct bpf_sk_lookup 16-bit wide
  libbpf: Fix compilation warning due to mismatched printf format
  selftests/bpf: Test BPF_KPROBE_SYSCALL macro
  libbpf: Add BPF_KPROBE_SYSCALL macro
  libbpf: Fix accessing the first syscall argument on s390
  libbpf: Fix accessing the first syscall argument on arm64
  libbpf: Allow overriding PT_REGS_PARM1{_CORE}_SYSCALL
  selftests/bpf: Skip test_bpf_syscall_macro's syscall_arg1 on arm64 and s390
  libbpf: Fix accessing syscall arguments on riscv
  libbpf: Fix riscv register names
  libbpf: Fix accessing syscall arguments on powerpc
  selftests/bpf: Use PT_REGS_SYSCALL_REGS in bpf_syscall_macro
  libbpf: Add PT_REGS_SYSCALL_REGS macro
  selftests/bpf: Fix an endianness issue in bpf_syscall_macro test
  bpf: Fix bpf_prog_pack build HPAGE_PMD_SIZE
  bpf: Fix leftover header->pages in sparc and powerpc code.
  libbpf: Fix signedness bug in btf_dump_array_data()
  selftests/bpf: Do not export subtest as standalone test
  bpf, x86_64: Fail gracefully on bpf_jit_binary_pack_finalize failures
  ...
====================

Link: https://lore.kernel.org/r/20220209210050.8425-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-09 18:40:56 -08:00
Tzung-Bi Shih
e4e3a93c6e MAINTAINERS: update cros_ec_codec maintainers
Updates cros_ec_codec maintainers.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Acked-By: Cheng-Yi Chiang <cychiang@chromium.org>
Acked-By: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20220208031242.227563-1-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09 14:36:05 +00:00
Matt Johnston
63ed1aab3d mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control
This change adds a couple of new ioctls for mctp sockets:
SIOCMCTPALLOCTAG and SIOCMCTPDROPTAG.  These ioctls provide facilities
for explicit allocation / release of tags, overriding the automatic
allocate-on-send/release-on-reply and timeout behaviours. This allows
userspace more control over messages that may not fit a simple
request/response model.

In order to indicate a pre-allocated tag to the sendmsg() syscall, we
introduce a new flag to the struct sockaddr_mctp.smctp_tag value:
MCTP_TAG_PREALLOC.

Additional changes from Jeremy Kerr <jk@codeconstruct.com.au>.

Contains a fix that was:
Reported-by: kernel test robot <lkp@intel.com>

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-09 12:00:11 +00:00
Biju Das
5e2e8cc9dd dt-bindings: net: renesas,etheravb: Document RZ/G2UL SoC
Document Gigabit Ethernet IP found on RZ/G2UL SoC. Gigabit Ethernet
Interface is identical to one found on the RZ/G2L SoC. No driver changes
are required as generic compatible string "renesas,rzg2l-gbeth" will be
used as a fallback.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-09 11:35:43 +00:00
Biju Das
654f89f949 dt-bindings: net: renesas,etheravb: Document RZ/V2L SoC
Document Gigabit Ethernet IP found on RZ/V2L SoC. Gigabit Ethernet
Interface is identical to one found on the RZ/G2L SoC. No driver changes
are required as generic compatible string "renesas,rzg2l-gbeth" will be
used as a fallback.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-09 11:35:43 +00:00
Akira Kawata
92a68053c3 Documentation: KUnit: Fix usage bug
Fix a bug of kunit documentation.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=205773

: Quoting Steve Pfetsch:
:
: kunit documentation is incorrect:
: https://kunit.dev/third_party/stable_kernel/docs/usage.html
: struct rectangle *self = container_of(this, struct shape, parent);
:
:
: Shouldn't it be:
: struct rectangle *self = container_of(this, struct rectangle, parent);
: ?

Signed-off-by: Akira Kawata <akirakawata1@gmail.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2022-02-08 13:16:20 -07:00
Chia-Wei Wang
088400521e docs/ABI: testing: aspeed-uart-routing: Escape asterisk
Escape asterisk symbols to fix the following warning:

"WARNING: Inline emphasis start-string without end-string"

Fixes: c6807970c3 ("soc: aspeed: Add UART routing support")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20220124014351.9121-1-chiawei_wang@aspeedtech.com
Link: https://lore.kernel.org/r/20220201070027.196314-1-joel@jms.id.au'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-08 09:52:41 +01:00
Arnd Bergmann
486343d372 Merge tag 'omap-for-v5.17/fixes-for-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps

A series of fixes for omap variants for minor issues, and a fix for a timer
regression for some omap3 beagleboard versions.

The timer fix needs to patch both the dts and the timer code because
otherwise the timer quirk handling for old dtbs will prevent the dts fix
from working.

The other changes are for issues found by automated analysis, a macasp
typo fix, and two cosmetic fixes for clocks.

* tag 'omap-for-v5.17/fixes-for-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Don't use legacy clock defines for dra7 clkctrl
  clk: ti: Move dra7 clock devices out of the legacy section
  ARM: dts: Fix timer regression for beagleboard revision c
  ARM: dts: am335x-wega: Fix typo in mcasp property rx-num-evt
  ARM: OMAP2+: adjust the location of put_device() call in omapdss_init_of
  ARM: OMAP2+: hwmod: Add of_node_put() before break

Link: https://lore.kernel.org/r/pull-1641801310-149268@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-07 17:42:44 +01:00
Linus Torvalds
90c9e950c0 Merge tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:

 - documentation fixes related to Xen

 - enable x2apic mode when available when running as hardware
   virtualized guest under Xen

 - cleanup and fix a corner case of vcpu enumeration when running a
   paravirtualized Xen guest

* tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/Xen: streamline (and fix) PV CPU enumeration
  xen: update missing ioctl magic numers documentation
  Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF
  xen: xenbus_dev.h: delete incorrect file name
  xen/x2apic: enable x2apic mode when supported for HVM
2022-02-05 10:40:17 -08:00
Linus Torvalds
5fdb26213f Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - A couple of fixes when handling an exception while a SError has
     been delivered

   - Workaround for Cortex-A510's single-step erratum

  RISC-V:

   - Make CY, TM, and IR counters accessible in VU mode

   - Fix SBI implementation version

  x86:

   - Report deprecation of x87 features in supported CPUID

   - Preparation for fixing an interrupt delivery race on AMD hardware

   - Sparse fix

  All except POWER and s390:

   - Rework guest entry code to correctly mark noinstr areas and fix
     vtime' accounting (for x86, this was already mostly correct but not
     entirely; for ARM, MIPS and RISC-V it wasn't)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Use ERR_PTR_USR() to return -EFAULT as a __user pointer
  KVM: x86: Report deprecated x87 features in supported CPUID
  KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata
  KVM: arm64: Stop handle_exit() from handling HVC twice when an SError occurs
  KVM: arm64: Avoid consuming a stale esr value when SError occur
  RISC-V: KVM: Fix SBI implementation version
  RISC-V: KVM: make CY, TM, and IR counters accessible in VU mode
  kvm/riscv: rework guest entry logic
  kvm/arm64: rework guest entry logic
  kvm/x86: rework guest entry logic
  kvm/mips: rework guest entry logic
  kvm: add guest_state_{enter,exit}_irqoff()
  KVM: x86: Move delivery of non-APICv interrupt into vendor code
  kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h
2022-02-05 09:55:59 -08:00
Linus Torvalds
31462d9e47 Merge tag 'drm-fixes-2022-02-04' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Regular fixes for the week. Daniel has agreed to bring back the fbcon
  hw acceleration under a CONFIG option for the non-drm fbdev users, we
  don't advise turning this on unless you are in the niche that is old
  fbdev drivers, Since it's essentially a revert and shouldn't be high
  impact seemed like a good time to do it now.

  Otherwise, i915 and amdgpu fixes are most of it, along with some minor
  fixes elsewhere.

  fbdev:
   - readd fbcon acceleration

  i915:
   - fix DP monitor via type-c dock
   - fix for engine busyness and read timeout with GuC
   - use ALLOW_FAIL for error capture buffer allocs
   - don't use interruptible lock on error paths
   - smatch fix to reject zero sized overlays.

  amdgpu:
   - mGPU fan boost fix for beige goby
   - S0ix fixes
   - Cyan skillfish hang fix
   - DCN fixes for DCN 3.1
   - DCN fixes for DCN 3.01
   - Apple retina panel fix
   - ttm logic inversion fix

  dma-buf:
   - heaps: fix potential spectre v1 gadget

  kmb:
   - fix potential oob access

  mxsfb:
   - fix NULL ptr deref

  nouveau:
   - fix potential oob access during BIOS decode"

* tag 'drm-fixes-2022-02-04' of git://anongit.freedesktop.org/drm/drm: (24 commits)
  drm: mxsfb: Fix NULL pointer dereference
  drm/amdgpu: fix logic inversion in check
  drm/amd: avoid suspend on dGPUs w/ s2idle support when runtime PM enabled
  drm/amd/display: Force link_rate as LINK_RATE_RBR2 for 2018 15" Apple Retina panels
  drm/amd/display: revert "Reset fifo after enable otg"
  drm/amd/display: watermark latencies is not enough on DCN31
  drm/amd/display: Update watermark values for DCN301
  drm/amdgpu: fix a potential GPU hang on cyan skillfish
  drm/amd: Only run s3 or s0ix if system is configured properly
  drm/amd: add support to check whether the system is set to s3
  fbcon: Add option to enable legacy hardware acceleration
  Revert "fbcon: Disable accelerated scrolling"
  Revert "fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)"
  drm/i915/pmu: Fix KMD and GuC race on accessing busyness
  dma-buf: heaps: Fix potential spectre v1 gadget
  drm/amd: Warn users about potential s0ix problems
  drm/amd/pm: correct the MGpuFanBoost support for Beige Goby
  drm/nouveau: fix off by one in BIOS boundary checking
  drm/i915/adlp: Fix TypeC PHY-ready status readout
  drm/i915/pmu: Use PM timestamp instead of RING TIMESTAMP for reference
  ...
2022-02-04 11:13:54 -08:00
Linus Torvalds
633a8e8986 Merge tag '5.17-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
 "SMB3 client fixes including:

   - multiple fscache related fixes, reenabling ability to read/write to
     cached files for cifs.ko (that was temporarily disabled for cifs.ko
     a few weeks ago due to the recent fscache changes)

   - also includes a new fscache helper function ("query_occupancy")
     used by above

   - fix for multiuser mounts and NTLMSSP auth (workstation name) for
     stable

   - fix locking ordering problem in multichannel code

   - trivial malformed comment fix"

* tag '5.17-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix workstation_name for multiuser mounts
  Invalidate fscache cookie only when inode attributes are changed.
  cifs: Fix the readahead conversion to manage the batch when reading from cache
  cifs: Implement cache I/O by accessing the cache directly
  netfs, cachefiles: Add a method to query presence of data in the cache
  cifs: Transition from ->readpages() to ->readahead()
  cifs: unlock chan_lock before calling cifs_put_tcp_session
  Fix a warning about a malformed kernel doc comment in cifs
2022-02-04 09:34:37 -08:00
Dave Airlie
8ea2c5187d Merge tag 'drm-misc-fixes-2022-02-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
* dma-buf/heaps: Fix potential spectre v1 gadget
 * drm/kmb: Fix potential out-of-bounds access
 * drm/mxsfb: Fix NULL-pointer dereference
 * drm/nouveau: Fix potential out-of-bounds access in BIOS decoding
 * fbdev: Re-add support for fbcon hardware acceleration

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Yfu8mTZQUNt1RwZd@linux-uq9g
2022-02-04 14:43:35 +10:00
Jakub Kicinski
c59400a68c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-03 17:36:16 -08:00
Linus Torvalds
eb2eb5161c Merge tag 'net-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf, netfilter, and ieee802154.

  Current release - regressions:

   - Partially revert "net/smc: Add netlink net namespace support", fix
     uABI breakage

   - netfilter:
      - nft_ct: fix use after free when attaching zone template
      - nft_byteorder: track register operations

  Previous releases - regressions:

   - ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback

   - phy: qca8081: fix speeds lower than 2.5Gb/s

   - sched: fix use-after-free in tc_new_tfilter()

  Previous releases - always broken:

   - tcp: fix mem under-charging with zerocopy sendmsg()

   - tcp: add missing tcp_skb_can_collapse() test in
     tcp_shift_skb_data()

   - neigh: do not trigger immediate probes on NUD_FAILED from
     neigh_managed_work, avoid a deadlock

   - bpf: use VM_MAP instead of VM_ALLOC for ringbuf, avoid KASAN
     false-positives

   - netfilter: nft_reject_bridge: fix for missing reply from prerouting

   - smc: forward wakeup to smc socket waitqueue after fallback

   - ieee802154:
      - return meaningful error codes from the netlink helpers
      - mcr20a: fix lifs/sifs periods
      - at86rf230, ca8210: stop leaking skbs on error paths

   - macsec: add missing un-offload call for NETDEV_UNREGISTER of parent

   - ax25: add refcount in ax25_dev to avoid UAF bugs

   - eth: mlx5e:
      - fix SFP module EEPROM query
      - fix broken SKB allocation in HW-GRO
      - IPsec offload: fix tunnel mode crypto for non-TCP/UDP flows

   - eth: amd-xgbe:
      - fix skb data length underflow
      - ensure reset of the tx_timer_active flag, avoid Tx timeouts

   - eth: stmmac: fix runtime pm use in stmmac_dvr_remove()

   - eth: e1000e: handshake with CSME starts from Alder Lake platforms"

* tag 'net-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
  ax25: fix reference count leaks of ax25_dev
  net: stmmac: ensure PTP time register reads are consistent
  net: ipa: request IPA register values be retained
  dt-bindings: net: qcom,ipa: add optional qcom,qmp property
  tools/resolve_btfids: Do not print any commands when building silently
  bpf: Use VM_MAP instead of VM_ALLOC for ringbuf
  net, neigh: Do not trigger immediate probes on NUD_FAILED from neigh_managed_work
  tcp: add missing tcp_skb_can_collapse() test in tcp_shift_skb_data()
  net: sparx5: do not refer to skb after passing it on
  Partially revert "net/smc: Add netlink net namespace support"
  net/mlx5e: Avoid field-overflowing memcpy()
  net/mlx5e: Use struct_group() for memcpy() region
  net/mlx5e: Avoid implicit modify hdr for decap drop rule
  net/mlx5e: IPsec: Fix tunnel mode crypto offload for non TCP/UDP traffic
  net/mlx5e: IPsec: Fix crypto offload for non TCP/UDP encapsulated traffic
  net/mlx5e: Don't treat small ceil values as unlimited in HTB offload
  net/mlx5: E-Switch, Fix uninitialized variable modact
  net/mlx5e: Fix handling of wrong devices during bond netevent
  net/mlx5e: Fix broken SKB allocation in HW-GRO
  net/mlx5e: Fix wrong calculation of header index in HW_GRO
  ...
2022-02-03 16:54:18 -08:00
Linus Torvalds
25b20ae815 Merge tag 'linux-kselftest-fixes-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
 "Important fixes to several tests and documentation clarification on
  running mainline kselftest on stable releases. A few notable fixes:

   - fix kselftest run hang due to child processes that haven't been
     terminated. Fix signals all child processes

   - fix false pass/fail results from vdso_test_abi, openat2, mincore

   - build failures when using -j (multiple jobs) option

   - exec test build failure due to incorrect build rule for a run-time
     created "pipe"

   - zram test fixes related to interaction with zram-generator to make
     sure zram test to coordinate deleted with zram-generator

   - zram test compression ratio calculation fix and skipping
     max_comp_streams.

   - increasing rtc test timeout

   - cpufreq test to write test results to stdout which will necessary
     on automated test systems"

* tag 'linux-kselftest-fixes-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kselftest: Fix vdso_test_abi return status
  selftests: skip mincore.check_file_mmap when fs lacks needed support
  selftests: openat2: Skip testcases that fail with EOPNOTSUPP
  selftests: openat2: Add missing dependency in Makefile
  selftests: openat2: Print also errno in failure messages
  selftests: futex: Use variable MAKE instead of make
  selftests/exec: Remove pipe from TEST_GEN_FILES
  selftests/zram: Adapt the situation that /dev/zram0 is being used
  selftests/zram01.sh: Fix compression ratio calculation
  selftests/zram: Skip max_comp_streams interface on newer kernel
  docs/kselftest: clarify running mainline tests on stables
  kselftest: signal all child processes
  selftests: cpufreq: Write test output to stdout as well
  selftests: rtc: Increase test timeout so that all tests run
2022-02-03 16:36:26 -08:00
Christoph Hellwig
594d323485 bpf, docs: Better document the atomic instructions
Use proper tables and RST markup to document the atomic instructions
in a structured way.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-6-hch@lst.de
2022-02-03 09:29:37 -08:00
Christoph Hellwig
5ca15b8a93 bpf, docs: Better document the extended instruction format
In addition to the normal 64-bit instruction encoding, eBPF also has
a single instruction that uses a second 64-bit bits for a second
immediate value.  Instead of only documenting this format deep down
in the document mention it in the instruction encoding section.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-5-hch@lst.de
2022-02-03 09:29:37 -08:00
Christoph Hellwig
1517533627 bpf, docs: Better document the legacy packet access instruction
Use consistent terminology and structured RST elements to better document
these two oddball instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-4-hch@lst.de
2022-02-03 09:29:31 -08:00
Christoph Hellwig
63d8c242b9 bpf, docs: Better document the regular load and store instructions
Add a separate section and a little intro blurb for the regular load and
store instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-3-hch@lst.de
2022-02-03 09:23:09 -08:00
Christoph Hellwig
dd33fb571f bpf, docs: Document the byte swapping instructions
Add a section to document the byte swapping instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220131183638.3934982-2-hch@lst.de
2022-02-03 09:23:09 -08:00
Alex Elder
ac62a0174d dt-bindings: net: qcom,ipa: add optional qcom,qmp property
For some systems, the IPA driver must make a request to ensure that
its registers are retained across power collapse of the IPA hardware.
On such systems, we'll use the existence of the "qcom,qmp" property
as a signal that this request is required.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-03 08:03:20 -08:00
Lorenzo Bianconi
0214f6c700 dt-bindings:net:wireless:mediatek,mt76: add disable-radar-offchan
Add the capability to disable/enable radar/CAC detection running on
a dedicated offchannel chain available on some hw.
Offchannel radar/CAC detection allows to avoid CAC downtime switching
on a different channel during CAC detection on the selected radar
channel.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-02-03 13:57:59 +01:00
James Morse
1dd498e5e2 KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata
Cortex-A510's erratum #2077057 causes SPSR_EL2 to be corrupted when
single-stepping authenticated ERET instructions. A single step is
expected, but a pointer authentication trap is taken instead. The
erratum causes SPSR_EL1 to be copied to SPSR_EL2, which could allow
EL1 to cause a return to EL2 with a guest controlled ELR_EL2.

Because the conditions require an ERET into active-not-pending state,
this is only a problem for the EL2 when EL2 is stepping EL1. In this case
the previous SPSR_EL2 value is preserved in struct kvm_vcpu, and can be
restored.

Cc: stable@vger.kernel.org # 53960faf2b: arm64: Add Cortex-A510 CPU part definition
Cc: stable@vger.kernel.org
Signed-off-by: James Morse <james.morse@arm.com>
[maz: fixup cpucaps ordering]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127122052.1584324-5-james.morse@arm.com
2022-02-03 09:22:30 +00:00
Randy Dunlap
3ccb3128e5 xen: update missing ioctl magic numers documentation
Add missing ioctl "magic numbers" for various Xen interfaces
(xenbus_dev.h, gntalloc.h, gntdev.h, and privcmd.h).

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: xen-devel@lists.xenproject.org
Link: https://lore.kernel.org/r/20220131161959.16509-1-rdunlap@infradead.org
Signed-off-by: Juergen Gross <jgross@suse.com>
2022-02-03 08:24:34 +01:00