Commit d723c456 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge 6.12-rc4 into char-misc-next 



We need the iio fixes from 6.12-rc4 in here as well.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parents ffb4b4ed 42f7652d

.mailmap

+6 −0
Original line number Diff line number Diff line
@@ -73,6 +73,8 @@ Andrey Ryabinin <ryabinin.a.a@gmail.com> <aryabinin@virtuozzo.com> 
Andrzej Hajda <andrzej.hajda@intel.com> <a.hajda@samsung.com>

André Almeida <andrealmeid@igalia.com> <andrealmeid@collabora.com>

Andy Adamson <andros@citi.umich.edu>

Andy Chiu <andybnac@gmail.com> <andy.chiu@sifive.com>

Andy Chiu <andybnac@gmail.com> <taochiu@synology.com>

Andy Shevchenko <andy@kernel.org> <andy@smile.org.ua>

Andy Shevchenko <andy@kernel.org> <ext-andriy.shevchenko@nokia.com>

Anilkumar Kolli <quic_akolli@quicinc.com> <akolli@codeaurora.org>
@@ -203,12 +205,16 @@ Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> <ezequiel@collabora.com> 
Faith Ekstrand <faith.ekstrand@collabora.com> <jason@jlekstrand.net>

Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@intel.com>

Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@collabora.com>

Fangrui Song <i@maskray.me> <maskray@google.com>

Felipe W Damasio <felipewd@terra.com.br>

Felix Kuhling <fxkuehl@gmx.de>

Felix Moeller <felix@derklecks.de>

Fenglin Wu <quic_fenglinw@quicinc.com> <fenglinw@codeaurora.org>

Filipe Lautert <filipe@icewall.org>

Finn Thain <fthain@linux-m68k.org> <fthain@telegraphics.com.au>

Fiona Behrens <me@kloenk.dev>

Fiona Behrens <me@kloenk.dev> <me@kloenk.de>

Fiona Behrens <me@kloenk.dev> <fin@nyantec.com>

Franck Bui-Huu <vagabon.xyz@gmail.com>

Frank Rowand <frowand.list@gmail.com> <frank.rowand@am.sony.com>

Frank Rowand <frowand.list@gmail.com> <frank.rowand@sony.com>

CREDITS

+27 −27
Original line number Diff line number Diff line
@@ -1358,10 +1358,6 @@ D: Major kbuild rework during the 2.5 cycle 
D: ISDN Maintainer

S: USA



N: Gerrit Renker

E: gerrit@erg.abdn.ac.uk

D: DCCP protocol support.



N: Philip Gladstone

E: philip@gladstonefamily.net

D: Kernel / timekeeping stuff
@@ -1677,11 +1673,6 @@ W: http://www.carumba.com/ 
D: bug toaster (A1 sauce makes all the difference)

D: Random linux hacker



N: James Hogan

E: jhogan@kernel.org

D: Metag architecture maintainer

D: TZ1090 SoC maintainer



N: Tim Hockin

E: thockin@hockin.org

W: http://www.hockin.org/~thockin
@@ -1697,6 +1688,11 @@ D: hwmon subsystem maintainer 
D: i2c-sis96x and i2c-stub SMBus drivers

S: USA



N: James Hogan

E: jhogan@kernel.org

D: Metag architecture maintainer

D: TZ1090 SoC maintainer



N: Dirk Hohndel

E: hohndel@suse.de

D: The XFree86[tm] Project
@@ -1872,6 +1868,10 @@ S: K osmidomkum 723 
S: 160 00 Praha 6

S: Czech Republic



N: Seth Jennings

E: sjenning@redhat.com

D: Creation and maintenance of zswap



N: Jeremy Kerr

D: Maintainer of SPU File System
@@ -2188,19 +2188,6 @@ N: Mike Kravetz 
E: mike.kravetz@oracle.com

D: Maintenance and development of the hugetlb subsystem



N: Seth Jennings

E: sjenning@redhat.com

D: Creation and maintenance of zswap



N: Dan Streetman

E: ddstreet@ieee.org

D: Maintenance and development of zswap

D: Creation and maintenance of the zpool API



N: Vitaly Wool

E: vitaly.wool@konsulko.com

D: Maintenance and development of zswap



N: Andreas S. Krebs

E: akrebs@altavista.net

D: CYPRESS CY82C693 chipset IDE, Digital's PC-Alpha 164SX boards
@@ -3191,6 +3178,11 @@ N: Ken Pizzini 
E: ken@halcyon.com

D: CDROM driver "sonycd535" (Sony CDU-535/531)



N: Mathieu Poirier

E: mathieu.poirier@linaro.org

D: CoreSight kernel subsystem, Maintainer 2014-2022

D: Perf tool support for CoreSight



N: Stelian Pop

E: stelian@popies.net

P: 1024D/EDBB6147 7B36 0E07 04BC 11DC A7A0  D3F7 7185 9E7A EDBB 6147
@@ -3300,6 +3292,10 @@ S: Schlossbergring 9 
S: 79098 Freiburg

S: Germany



N: Gerrit Renker

E: gerrit@erg.abdn.ac.uk

D: DCCP protocol support.



N: Thomas Renninger

E: trenn@suse.de

D: cpupowerutils
@@ -3576,11 +3572,6 @@ D: several improvements to system programs 
S: Oldenburg

S: Germany



N: Mathieu Poirier

E: mathieu.poirier@linaro.org

D: CoreSight kernel subsystem, Maintainer 2014-2022

D: Perf tool support for CoreSight



N: Robert Schwebel

E: robert@schwebel.de

W: https://www.schwebel.de
@@ -3771,6 +3762,11 @@ S: Chr. Winthersvej 1 B, st.th. 
S: DK-1860 Frederiksberg C

S: Denmark



N: Dan Streetman

E: ddstreet@ieee.org

D: Maintenance and development of zswap

D: Creation and maintenance of the zpool API



N: Drew Sullivan

E: drew@ss.org

W: http://www.ss.org/
@@ -4286,6 +4282,10 @@ S: Pipers Way 
S: Swindon. SN3 1RJ

S: England



N: Vitaly Wool

E: vitaly.wool@konsulko.com

D: Maintenance and development of zswap



N: Chris Wright

E: chrisw@sous-sol.org

D: hacking on LSM framework and security modules.

Documentation/admin-guide/LSM/ipe.rst

+5 −2
Original line number Diff line number Diff line
@@ -223,7 +223,10 @@ are signed through the PKCS#7 message format to enforce some level of 
authorization of the policies (prohibiting an attacker from gaining

unconstrained root, and deploying an "allow all" policy). These

policies must be signed by a certificate that chains to the

``SYSTEM_TRUSTED_KEYRING``. With openssl, the policy can be signed by::

``SYSTEM_TRUSTED_KEYRING``, or to the secondary and/or platform keyrings if

``CONFIG_IPE_POLICY_SIG_SECONDARY_KEYRING`` and/or

``CONFIG_IPE_POLICY_SIG_PLATFORM_KEYRING`` are enabled, respectively.

With openssl, the policy can be signed by::



   openssl smime -sign \

      -in "$MY_POLICY" \
@@ -266,7 +269,7 @@ in the kernel. This file is write-only and accepts a PKCS#7 signed 
policy. Two checks will always be performed on this policy: First, the

``policy_names`` must match with the updated version and the existing

version. Second the updated policy must have a policy version greater than

or equal to the currently-running version. This is to prevent rollback attacks.

the currently-running version. This is to prevent rollback attacks.



The ``delete`` file is used to remove a policy that is no longer needed.

This file is write-only and accepts a value of ``1`` to delete the policy.

Documentation/core-api/protection-keys.rst

+30 −8
Original line number Diff line number Diff line
@@ -12,7 +12,10 @@ Pkeys Userspace (PKU) is a feature which can be found on: 
        * Intel server CPUs, Skylake and later

        * Intel client CPUs, Tiger Lake (11th Gen Core) and later

        * Future AMD CPUs

        * arm64 CPUs implementing the Permission Overlay Extension (FEAT_S1POE)



x86_64

======

Pkeys work by dedicating 4 previously Reserved bits in each page table entry to

a "protection key", giving 16 possible keys.
@@ -28,6 +31,22 @@ register. The feature is only available in 64-bit mode, even though there is 
theoretically space in the PAE PTEs.  These permissions are enforced on data

access only and have no effect on instruction fetches.



arm64

=====



Pkeys use 3 bits in each page table entry, to encode a "protection key index",

giving 8 possible keys.



Protections for each key are defined with a per-CPU user-writable system

register (POR_EL0).  This is a 64-bit register encoding read, write and execute

overlay permissions for each protection key index.



Being a CPU register, POR_EL0 is inherently thread-local, potentially giving

each thread a different set of protections from every other thread.



Unlike x86_64, the protection key permissions also apply to instruction

fetches.



Syscalls

========
@@ -38,11 +57,10 @@ There are 3 system calls which directly interact with pkeys:: 
	int pkey_mprotect(unsigned long start, size_t len,

			  unsigned long prot, int pkey);



Before a pkey can be used, it must first be allocated with

pkey_alloc().  An application calls the WRPKRU instruction

directly in order to change access permissions to memory covered

with a key.  In this example WRPKRU is wrapped by a C function

called pkey_set().

Before a pkey can be used, it must first be allocated with pkey_alloc().  An

application writes to the architecture specific CPU register directly in order

to change access permissions to memory covered with a key.  In this example

this is wrapped by a C function called pkey_set().

::



	int real_prot = PROT_READ|PROT_WRITE;
@@ -64,9 +82,9 @@ is no longer in use:: 
	munmap(ptr, PAGE_SIZE);

	pkey_free(pkey);



.. note:: pkey_set() is a wrapper for the RDPKRU and WRPKRU instructions.

          An example implementation can be found in

          tools/testing/selftests/x86/protection_keys.c.

.. note:: pkey_set() is a wrapper around writing to the CPU register.

          Example implementations can be found in

          tools/testing/selftests/mm/pkey-{arm64,powerpc,x86}.h



Behavior

========
@@ -96,3 +114,7 @@ with a read():: 
The kernel will send a SIGSEGV in both cases, but si_code will be set

to SEGV_PKERR when violating protection keys versus SEGV_ACCERR when

the plain mprotect() permissions are violated.



Note that kernel accesses from a kthread (such as io_uring) will use a default

value for the protection key register and so will not be consistent with

userspace's value of the register or mprotect().

Documentation/devicetree/bindings/display/elgin,jg10309-01.yaml

0 → 100644
+54 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/elgin,jg10309-01.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Elgin JG10309-01 SPI-controlled display



maintainers:

  - Fabio Estevam <festevam@gmail.com>



description: |

  The Elgin JG10309-01 SPI-controlled display is used on the RV1108-Elgin-r1

  board and is a custom display.



allOf:

  - $ref: /schemas/spi/spi-peripheral-props.yaml#



properties:

  compatible:

    const: elgin,jg10309-01



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 24000000



  spi-cpha: true



  spi-cpol: true



required:

  - compatible

  - reg

  - spi-cpha

  - spi-cpol



additionalProperties: false



examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        display@0 {

            compatible = "elgin,jg10309-01";

            reg = <0>;

            spi-max-frequency = <24000000>;

            spi-cpha;

            spi-cpol;

        };

    };