Merge tag 'v6.6.9' into dev-6.6

This is the 6.6.9 stable release

s390/vx: fix save/restore of fpu kernel context

[ Upstream commit e6b2dab41888332bf83f592131e7ea07756770a4 ]

The KERNEL_FPR mask only contains a flag for the first eight vector
registers. However f

s390/vx: fix save/restore of fpu kernel context

[ Upstream commit e6b2dab41888332bf83f592131e7ea07756770a4 ]

The KERNEL_FPR mask only contains a flag for the first eight vector
registers. However floating point registers overlay parts of the first
sixteen vector registers.

This could lead to vector register corruption if a kernel fpu context uses
any of the vector registers 8 to 15 and is interrupted or calls a
KERNEL_FPR context. If that context uses also vector registers 8 to 15,
their contents will be corrupted on return.

Luckily this is currently not a real bug, since the kernel has only one
KERNEL_FPR user with s390_adjust_jiffies() and it is only using floating
point registers 0 to 2.

Fix this by using the correct bits for KERNEL_FPR.

Fixes: 7f79695cc1b6 ("s390/fpu: improve kernel_fpu_[begin|end]")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Merge branch 'main' into zstd-linus

Merge branch 'main' into zstd-next

Merge branch 'next' into for-linus

Prepare input updates for 5.20 (or 6.0) merge window.

Merge tag 'v5.18'

Linux 5.18

Merge tag 'v5.18' into next

Sync up with mainline to get updates to OMAP4 keypad driver and other
upstream goodies.

Merge branch 'topic/cs35l41' into for-next

Pull CS35L41 codec updates

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge drm/drm-next into drm-intel-gt-next

Pull in TTM changes needed for DG2 CCS enabling from Ram.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-next

Sync up with v5.18-rc1, in particular to get 5e3094cfd9fb
("drm/i915/xehpsdv: Add has_flat_ccs to device info").

Signed-off-by: Jani Nikula <jani.nikula@intel

Merge drm/drm-next into drm-intel-next

Sync up with v5.18-rc1, in particular to get 5e3094cfd9fb
("drm/i915/xehpsdv: Add has_flat_ccs to device info").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

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Merge drm/drm-next into drm-misc-next

Let's start the 5.19 development cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'asoc-fix-v5.18-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.18

A collection of fixes that came in since the merge window, plus

Merge tag 'asoc-fix-v5.18-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.18

A collection of fixes that came in since the merge window, plus one new
device ID for an x86 laptop. Nothing that really stands out with
particularly big impact outside of the affected device.

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Merge drm/drm-fixes into drm-misc-fixes

Let's start the 5.18 fixes cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

- Raise minimum supported machine generation to z10, which comes with
v

Merge tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

- Raise minimum supported machine generation to z10, which comes with
various cleanups and code simplifications (usercopy/spectre
mitigation/etc).

- Rework extables and get rid of anonymous out-of-line fixups.

- Page table helpers cleanup. Add set_pXd()/set_pte() helper functions.
Covert pte_val()/pXd_val() macros to functions.

- Optimize kretprobe handling by avoiding extra kprobe on
__kretprobe_trampoline.

- Add support for CEX8 crypto cards.

- Allow to trigger AP bus rescan via writing to /sys/bus/ap/scans.

- Add CONFIG_EXPOLINE_EXTERN option to build the kernel without COMDAT
group sections which simplifies kpatch support.

- Always use the packed stack layout and extend kernel unwinder tests.

- Add sanity checks for ftrace code patching.

- Add s390dbf debug log for the vfio_ap device driver.

- Various virtual vs physical address confusion fixes.

- Various small fixes and improvements all over the code.

* tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (69 commits)
s390/test_unwind: add kretprobe tests
s390/kprobes: Avoid additional kprobe in kretprobe handling
s390: convert ".insn" encoding to instruction names
s390: assume stckf is always present
s390/nospec: move to single register thunks
s390: raise minimum supported machine generation to z10
s390/uaccess: Add copy_from/to_user_key functions
s390/nospec: align and size extern thunks
s390/nospec: add an option to use thunk-extern
s390/nospec: generate single register thunks if possible
s390/pci: make zpci_set_irq()/zpci_clear_irq() static
s390: remove unused expoline to BC instructions
s390/irq: use assignment instead of cast
s390/traps: get rid of magic cast for per code
s390/traps: get rid of magic cast for program interruption code
s390/signal: fix typo in comments
s390/asm-offsets: remove unused defines
s390/test_unwind: avoid build warning with W=1
s390: remove .fixup section
s390/bpf: encode register within extable entry
...

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s390/extable: move EX_TABLE define to asm-extable.h

Follow arm64 and riscv and move the EX_TABLE define to asm-extable.h
which is a lot less generic than the current linkage.h.

Also make sure that

s390/extable: move EX_TABLE define to asm-extable.h

Follow arm64 and riscv and move the EX_TABLE define to asm-extable.h
which is a lot less generic than the current linkage.h.

Also make sure that all files which contain EX_TABLE usages actually
include the new header file. This should make sure that the files
always compile and there won't be any random compile breakage due to
other header file dependencies.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Merge branch 'next' into for-linus

Prepare input updates for 5.13 merge window.

Merge tag 'v5.12-rc7' into ecryptfs/next

Required to pick up idmapped mount changes which changed some function
parameters.

Merge tag 'v5.12-rc4' into next

Sync up with the mainline to bring in newest APIs.

Merge drm/drm-next into drm-misc-next

Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12
merge due to the swap issue so it looks like a good time.

Signed-off-by: Maxime Ripard

Merge drm/drm-next into drm-misc-next

Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12
merge due to the swap issue so it looks like a good time.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- More compatible strings for the Ingenic

Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- More compatible strings for the Ingenic irqchip (introducing the
JZ4760B SoC)
- Select GENERIC_IRQ_MULTI_HANDLER on the ARM ep93xx platform
- Drop all GENERIC_IRQ_MULTI_HANDLER selections from the irqchip
Kconfig, now relying on the architecture to get it right
- Drop the debugfs_file field from struct irq_domain, now that
debugfs can track things on its own

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Merge drm/drm-next into drm-intel-next

Sync up with upstream.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge branch 'fixes-rc2' into fixes

Merge tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

- Convert to using the generic entry infrastructure.

- Add vdso time nam

Merge tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

- Convert to using the generic entry infrastructure.

- Add vdso time namespace support.

- Switch s390 and alpha to 64-bit ino_t. As discussed at

https://lore.kernel.org/linux-mm/YCV7QiyoweJwvN+m@osiris/

- Get rid of expensive stck (store clock) usages where possible.
Utilize cpu alternatives to patch stckf when supported.

- Make tod_clock usage less error prone by converting it to a union and
rework code which is using it.

- Machine check handler fixes and cleanups.

- Drop couple of minor inline asm optimizations to fix clang build.

- Default configs changes notably to make libvirt happy.

- Various changes to rework and improve qdio code.

- Other small various fixes and improvements all over the code.

* tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (68 commits)
s390/qdio: remove 'merge_pending' mechanism
s390/qdio: improve handling of PENDING buffers for QEBSM devices
s390/qdio: rework q->qdio_error indication
s390/qdio: inline qdio_kick_handler()
s390/time: remove get_tod_clock_ext()
s390/crypto: use store_tod_clock_ext()
s390/hypfs: use store_tod_clock_ext()
s390/debug: use union tod_clock
s390/kvm: use union tod_clock
s390/vdso: use union tod_clock
s390/time: convert tod_clock_base to union
s390/time: introduce new store_tod_clock_ext()
s390/time: rename store_tod_clock_ext() and use union tod_clock
s390/time: introduce union tod_clock
s390,alpha: switch to 64-bit ino_t
s390: split cleanup_sie
s390: use r13 in cleanup_sie as temp register
s390: fix kernel asce loading when sie is interrupted
s390: add stack for machine check handler
s390: use WRITE_ONCE when re-allocating async stack
...

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s390: convert to generic entry

This patch converts s390 to use the generic entry infrastructure from
kernel/entry/*.

There are a few special things on s390:

- PIF_PER_TRAP is moved to TIF_PER_TRAP

s390: convert to generic entry

This patch converts s390 to use the generic entry infrastructure from
kernel/entry/*.

There are a few special things on s390:

- PIF_PER_TRAP is moved to TIF_PER_TRAP as the generic code doesn't
know about our PIF flags in exit_to_user_mode_loop().

- The old code had several ways to restart syscalls:

a) PIF_SYSCALL_RESTART, which was only set during execve to force a
restart after upgrading a process (usually qemu-kvm) to pgste page
table extensions.

b) PIF_SYSCALL, which is set by do_signal() to indicate that the
current syscall should be restarted. This is changed so that
do_signal() now also uses PIF_SYSCALL_RESTART. Continuing to use
PIF_SYSCALL doesn't work with the generic code, and changing it
to PIF_SYSCALL_RESTART makes PIF_SYSCALL and PIF_SYSCALL_RESTART
more unique.

- On s390 calling sys_sigreturn or sys_rt_sigreturn is implemented by
executing a svc instruction on the process stack which causes a fault.
While handling that fault the fault code sets PIF_SYSCALL to hand over
processing to the syscall code on exit to usermode.

The patch introduces PIF_SYSCALL_RET_SET, which is set if ptrace sets
a return value for a syscall. The s390x ptrace ABI uses r2 both for the
syscall number and return value, so ptrace cannot set the syscall number +
return value at the same time. The flag makes handling that a bit easier.
do_syscall() will just skip executing the syscall if PIF_SYSCALL_RET_SET
is set.

CONFIG_DEBUG_ASCE was removd in favour of the generic CONFIG_DEBUG_ENTRY.
CR1/7/13 will be checked both on kernel entry and exit to contain the
correct asces.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Merge branch 'fix/intel' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel