This is the start of the stable review cycle for the 5.4.184 release.
There are 33 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.184-rc2.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 5.4.184-rc2

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Revert "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE"

Juergen Gross <jgross@suse.com>
    xen/netfront: react properly to failing gnttab_end_foreign_access_ref()

Juergen Gross <jgross@suse.com>
    xen/gnttab: fix gnttab_end_foreign_access() without page specified

Juergen Gross <jgross@suse.com>
    xen/pvcalls: use alloc/free_pages_exact()

Juergen Gross <jgross@suse.com>
    xen/9p: use alloc/free_pages_exact()

Juergen Gross <jgross@suse.com>
    xen: remove gnttab_query_foreign_access()

Juergen Gross <jgross@suse.com>
    xen/gntalloc: don't use gnttab_query_foreign_access()

Juergen Gross <jgross@suse.com>
    xen/scsifront: don't use gnttab_query_foreign_access() for mapped status

Juergen Gross <jgross@suse.com>
    xen/netfront: don't use gnttab_query_foreign_access() for mapped status

Juergen Gross <jgross@suse.com>
    xen/blkfront: don't use gnttab_query_foreign_access() for mapped status

Juergen Gross <jgross@suse.com>
    xen/grant-table: add gnttab_try_end_foreign_access()

Juergen Gross <jgross@suse.com>
    xen/xenbus: don't let xenbus_grant_ring() remove grants in error case

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: fix build warning in proc-v7-bugs.c

Nathan Chancellor <nathan@kernel.org>
    ARM: Do not use NOCROSSREFS directive with ld.lld

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: fix co-processor register typo

Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
    ARM: fix build error when BPF_SYSCALL is disabled

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: include unprivileged BPF status in Spectre V2 reporting

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: Spectre-BHB workaround

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: use LOADADDR() to get load address of sections

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: early traps initialisation

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
    ARM: report Spectre v2 status through sysfs

Mark Rutland <mark.rutland@arm.com>
    arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()

Steven Price <steven.price@arm.com>
    arm/arm64: Provide a wrapper for SMCCC 1.1 calls

Josh Poimboeuf <jpoimboe@redhat.com>
    x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT

Josh Poimboeuf <jpoimboe@redhat.com>
    x86/speculation: Warn about Spectre v2 LFENCE mitigation

Kim Phillips <kim.phillips@amd.com>
    x86/speculation: Update link to AMD speculation whitepaper

Kim Phillips <kim.phillips@amd.com>
    x86/speculation: Use generic retpoline by default on AMD

Josh Poimboeuf <jpoimboe@redhat.com>
    x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting

Peter Zijlstra <peterz@infradead.org>
    Documentation/hw-vuln: Update spectre doc

Peter Zijlstra <peterz@infradead.org>
    x86/speculation: Add eIBRS + Retpoline options

Peter Zijlstra (Intel) <peterz@infradead.org>
    x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE

Peter Zijlstra <peterz@infradead.org>
    x86,bugs: Unconditionally allow spectre_v2=retpoline,amd

Borislav Petkov <bp@suse.de>
    x86/speculation: Merge one test in spectre_v2_user_select_mitigation()


-------------

Diffstat:

 Documentation/admin-guide/hw-vuln/spectre.rst   |  48 ++++--
 Documentation/admin-guide/kernel-parameters.txt |   8 +-
 Makefile                                        |   4 +-
 arch/arm/include/asm/assembler.h                |  10 ++
 arch/arm/include/asm/spectre.h                  |  32 ++++
 arch/arm/kernel/Makefile                        |   2 +
 arch/arm/kernel/entry-armv.S                    |  79 ++++++++-
 arch/arm/kernel/entry-common.S                  |  24 +++
 arch/arm/kernel/spectre.c                       |  71 ++++++++
 arch/arm/kernel/traps.c                         |  65 ++++++-
 arch/arm/kernel/vmlinux.lds.h                   |  43 ++++-
 arch/arm/mm/Kconfig                             |  11 ++
 arch/arm/mm/proc-v7-bugs.c                      | 200 +++++++++++++++++++---
 arch/x86/include/asm/cpufeatures.h              |   2 +-
 arch/x86/include/asm/nospec-branch.h            |  16 +-
 arch/x86/kernel/cpu/bugs.c                      | 216 +++++++++++++++++-------
 drivers/acpi/ec.c                               |  10 --
 drivers/acpi/sleep.c                            |  14 +-
 drivers/block/xen-blkfront.c                    |  63 ++++---
 drivers/firmware/psci/psci.c                    |  15 ++
 drivers/net/xen-netfront.c                      |  54 +++---
 drivers/scsi/xen-scsifront.c                    |   3 +-
 drivers/xen/gntalloc.c                          |  25 +--
 drivers/xen/grant-table.c                       |  71 ++++----
 drivers/xen/pvcalls-front.c                     |   8 +-
 drivers/xen/xenbus/xenbus_client.c              |  24 ++-
 include/linux/arm-smccc.h                       |  74 ++++++++
 include/linux/bpf.h                             |  12 ++
 include/xen/grant_table.h                       |  19 ++-
 kernel/sysctl.c                                 |   8 +
 net/9p/trans_xen.c                              |  14 +-
 tools/arch/x86/include/asm/cpufeatures.h        |   2 +-
 32 files changed, 970 insertions(+), 277 deletions(-)

On 3/10/22 6:19 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.4.184 release.
> There are 33 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.184-rc2.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels:

Tested-by: Florian Fainelli <f.fainelli@gmail.com>
-- 
Florian

On Thu, 10 Mar 2022 at 19:57, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.4.184 release.
> There are 33 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.184-rc2.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>

## Build
* kernel: 5.4.184-rc2
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git branch: linux-5.4.y
* git commit: 10576140d9ea54d852c159b209bcaae2c80203e7
* git describe: v5.4.183-34-g10576140d9ea
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.4.y/build/v5.4.183-34-g10576140d9ea

## Test Regressions (compared to v5.4.183-18-g706b33173b11)
No test regressions found.

## Metric Regressions (compared to v5.4.183-18-g706b33173b11)
No metric regressions found.

## Test Fixes (compared to v5.4.183-18-g706b33173b11)
No test fixes found.

## Metric Fixes (compared to v5.4.183-18-g706b33173b11)
No metric fixes found.

## Test result summary
total: 93554, pass: 77446, fail: 1136, skip: 13510, xfail: 1462

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 295 total, 295 passed, 0 failed
* arm64: 46 total, 38 passed, 8 failed
* dragonboard-410c: 1 total, 1 passed, 0 failed
* hi6220-hikey: 1 total, 1 passed, 0 failed
* i386: 22 total, 22 passed, 0 failed
* juno-r2: 1 total, 1 passed, 0 failed
* mips: 41 total, 38 passed, 3 failed
* parisc: 14 total, 14 passed, 0 failed
* powerpc: 65 total, 50 passed, 15 failed
* riscv: 32 total, 27 passed, 5 failed
* s390: 14 total, 13 passed, 1 failed
* sh: 26 total, 24 passed, 2 failed
* sparc: 14 total, 14 passed, 0 failed
* x15: 1 total, 1 passed, 0 failed
* x86: 1 total, 1 passed, 0 failed
* x86_64: 46 total, 46 passed, 0 failed

## Test suites summary
* fwts
* igt-gpu-tools
* kselftest-android
* kselftest-arm64
* kselftest-bpf
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-firmware
* kselftest-fpu
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kexec
* kselftest-kvm
* kselftest-lib
* kselftest-livepatch
* kselftest-membarrier
* kselftest-memfd
* kselftest-memory-hotplug
* kselftest-mincore
* kselftest-mount
* kselftest-mqueue
* kselftest-net
* kselftest-netfilter
* kselftest-nsfs
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-tc-testing
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-vm
* kselftest-x86
* kselftest-zram
* kvm-unit-tests
* libgpiod
* libhugetlbfs
* linux-log-parser
* ltp-cap_bounds-tests
* ltp-commands-tests
* ltp-containers-tests
* ltp-controllers-tests
* ltp-cpuhotplug-tests
* ltp-crypto-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-open-posix-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* ltp-tracing-tests
* network-basic-tests
* packetdrill
* perf
* perf/Zstd-perf.data-compression
* rcutorture
* ssuite
* v4l2-compliance
* vdso

--
Linaro LKFT
https://lkft.linaro.org

Hi Greg,

On Thu, Mar 10, 2022 at 03:19:01PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.4.184 release.
> There are 33 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
> Anything received after that time might be too late.

Build test:
mips (gcc version 11.2.1 20220301): 65 configs -> no new failure
arm (gcc version 11.2.1 20220301): 107 configs -> no new failure
arm64 (gcc version 11.2.1 20220301): 2 configs -> no failure
x86_64 (gcc version 11.2.1 20220301): 4 configs -> no failure

Boot test:
x86_64: Booted on my test laptop. No regression.
x86_64: Booted on qemu. No regression. [1]

[1]. https://openqa.qa.codethink.co.uk/tests/864


Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>

--
Regards
Sudip

On Thu, Mar 10, 2022 at 03:19:01PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.4.184 release.
> There are 33 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
> Anything received after that time might be too late.
> 

Build results:
	total: 159 pass: 159 fail: 0
Qemu test results:
	total: 449 pass: 449 fail: 0

Tested-by: Guenter Roeck <linux@roeck-us.net>

Guenter

On 3/10/22 7:19 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.4.184 release.
> There are 33 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Sat, 12 Mar 2022 14:07:58 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.184-rc2.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Compiled and booted on my test system. No dmesg regressions.

Tested-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah