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Linus Torvalds
c645c11a2d audit/stable-6.1 PR 20221003 
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Merge tag 'audit-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Six audit patches for v6.1, most are pretty trivial, but a quick list
  of the highlights are below:

   - Only free the audit proctitle information on task exit. This allows
     us to cache the information and improve performance slightly.

   - Use the time_after() macro to do time comparisons instead of doing
     it directly and potentially causing ourselves problems when the
     timer wraps.

   - Convert an audit_context state comparison from a relative enum
     comparison, e.g. (x < y), to a not-equal comparison to ensure that
     we are not caught out at some unknown point in the future by an
     enum shuffle.

   - A handful of small cleanups such as tidying up comments and
     removing unused declarations"

* tag 'audit-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: remove selinux_audit_rule_update() declaration
  audit: use time_after to compare time
  audit: free audit_proctitle only on task exit
  audit: explicitly check audit_context->context enum value
  audit: audit_context pid unused, context enum comment fix
  audit: fix repeated words in comments
 2022-10-04 11:05:43 -07:00
Linus Torvalds
3eba620e7b - The usual round of smaller fixes and cleanups all over the tree 
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Merge tag 'x86_cleanups_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Borislav Petkov:

 - The usual round of smaller fixes and cleanups all over the tree

* tag 'x86_cleanups_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype
  x86/uaccess: Improve __try_cmpxchg64_user_asm() for x86_32
  x86: Fix various duplicate-word comment typos
  x86/boot: Remove superfluous type casting from arch/x86/boot/bitops.h
 2022-10-04 10:24:11 -07:00
Linus Torvalds
193e2268a3 - More work by James Morse to disentangle the resctrl filesystem generic 
code from the architectural one with the endgoal of plugging ARM's MPAM
 implementation into it too so that the user interface remains the same
 
 - Properly restore the MSR_MISC_FEATURE_CONTROL value instead of blindly
 overwriting it to 0
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Merge tag 'x86_cache_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cache resource control updates from Borislav Petkov:

 - More work by James Morse to disentangle the resctrl filesystem
   generic code from the architectural one with the endgoal of plugging
   ARM's MPAM implementation into it too so that the user interface
   remains the same

 - Properly restore the MSR_MISC_FEATURE_CONTROL value instead of
   blindly overwriting it to 0

* tag 'x86_cache_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  x86/resctrl: Make resctrl_arch_rmid_read() return values in bytes
  x86/resctrl: Add resctrl_rmid_realloc_limit to abstract x86's boot_cpu_data
  x86/resctrl: Rename and change the units of resctrl_cqm_threshold
  x86/resctrl: Move get_corrected_mbm_count() into resctrl_arch_rmid_read()
  x86/resctrl: Move mbm_overflow_count() into resctrl_arch_rmid_read()
  x86/resctrl: Pass the required parameters into resctrl_arch_rmid_read()
  x86/resctrl: Abstract __rmid_read()
  x86/resctrl: Allow per-rmid arch private storage to be reset
  x86/resctrl: Add per-rmid arch private storage for overflow and chunks
  x86/resctrl: Calculate bandwidth from the previous __mon_event_count() chunks
  x86/resctrl: Allow update_mba_bw() to update controls directly
  x86/resctrl: Remove architecture copy of mbps_val
  x86/resctrl: Switch over to the resctrl mbps_val list
  x86/resctrl: Create mba_sc configuration in the rdt_domain
  x86/resctrl: Abstract and use supports_mba_mbps()
  x86/resctrl: Remove set_mba_sc()s control array re-initialisation
  x86/resctrl: Add domain offline callback for resctrl work
  x86/resctrl: Group struct rdt_hw_domain cleanup
  x86/resctrl: Add domain online callback for resctrl work
  x86/resctrl: Merge mon_capable and mon_enabled
  ...
 2022-10-04 10:14:58 -07:00
Linus Torvalds
b5f0b11353 - Get rid of a single ksize() usage 
- By popular demand, print the previous microcode revision an update
   was done over
 
 - Remove more code related to the now gone MICROCODE_OLD_INTERFACE
 
 - Document the problems stemming from microcode late loading
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Merge tag 'x86_microcode_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x75 microcode loader updates from Borislav Petkov:

 - Get rid of a single ksize() usage

 - By popular demand, print the previous microcode revision an update
   was done over

 - Remove more code related to the now gone MICROCODE_OLD_INTERFACE

 - Document the problems stemming from microcode late loading

* tag 'x86_microcode_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Track patch allocation size explicitly
  x86/microcode: Print previous version of microcode after reload
  x86/microcode: Remove ->request_microcode_user()
  x86/microcode: Document the whole late loading problem
 2022-10-04 10:12:08 -07:00
Linus Torvalds
9bf445b65d - Ensure paravirt patching site descriptors are aligned properly so that 
code can do proper arithmetic with their addresses
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Merge tag 'x86_paravirt_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 paravirt fix from Borislav Petkov:

 - Ensure paravirt patching site descriptors are aligned properly so
   that code can do proper arithmetic with their addresses

* tag 'x86_paravirt_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/paravirt: Ensure proper alignment
 2022-10-04 10:03:40 -07:00
Linus Torvalds
901735e51e - Drop misleading "RIP" from the opcodes dumping message 
- Correct APM entry's Konfig help text
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Merge tag 'x86_misc_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 fixes from Borislav Petkov:

 - Drop misleading "RIP" from the opcodes dumping message

 - Correct APM entry's Konfig help text

* tag 'x86_misc_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/dumpstack: Don't mention RIP in "Code: "
  x86/Kconfig: Specify idle=poll instead of no-hlt
 2022-10-04 10:00:27 -07:00
Linus Torvalds
bb1f11546e - "Slap" the __builtin_ffs/ctzl() compiler builtins in front of the 
kernel's optimized ffs()/ffz() helpers in order to make use of the
 compiler's constant folding optmization passes.
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Merge tag 'x86_asm_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 asm update from Borislav Petkov:

 - Use the __builtin_ffs/ctzl() compiler builtins for the constant
   argument case in the kernel's optimized ffs()/ffz() helpers in order
   to make use of the compiler's constant folding optmization passes.

* tag 'x86_asm_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm/bitops: Use __builtin_ctzl() to evaluate constant expressions
  x86/asm/bitops: Use __builtin_ffs() to evaluate constant expressions
 2022-10-04 09:49:50 -07:00
Linus Torvalds
8cded8fb12 - Make sure an INT3 is slapped after every unconditional retpoline JMP 
as both vendors suggest
 
 - Clean up pciserial a bit
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Merge tag 'x86_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 core fixes from Borislav Petkov:

 - Make sure an INT3 is slapped after every unconditional retpoline JMP
   as both vendors suggest

 - Clean up pciserial a bit

* tag 'x86_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86,retpoline: Be sure to emit INT3 after JMP *%\reg
  x86/earlyprintk: Clean up pciserial
 2022-10-04 09:46:22 -07:00
Linus Torvalds
5bb3a16dbe - Add support for locking the APIC in X2APIC mode to prevent SGX enclave leaks 
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Merge tag 'x86_apic_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 APIC update from Borislav Petkov:

 - Add support for locking the APIC in X2APIC mode to prevent SGX
   enclave leaks

* tag 'x86_apic_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/apic: Don't disable x2APIC if locked
 2022-10-04 09:37:02 -07:00
Linus Torvalds
51eaa866a5 - Fix the APEI MCE callback handler to consult the hardware about the 
granularity of the memory error instead of hard-coding it
 
 - Offline memory pages on Intel machines after 2 errors reported per page
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Merge tag 'ras_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Borislav Petkov:

 - Fix the APEI MCE callback handler to consult the hardware about the
   granularity of the memory error instead of hard-coding it

 - Offline memory pages on Intel machines after 2 errors reported per
   page

* tag 'ras_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Retrieve poison range from hardware
  RAS/CEC: Reduce offline page threshold for Intel systems
 2022-10-04 09:33:12 -07:00
Linus Torvalds
7db99f01d1 - Print the CPU number at segfault time. The number printed is not 
always accurate (preemption is enabled at that time) but the print string
   contains "likely" and after a lot of back'n'forth on this, this was the
   consensus that was reached. See thread starting at:
   https://lore.kernel.org/r/5d62c1d0-7425-d5bb-ecb5-1dc3b4d7d245@intel.com
 
 - After a *lot* of testing and polishing, finally the clear_user()
   improvements to inline REP; STOSB by default
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Merge tag 'x86_cpu_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Borislav Petkov:

 - Print the CPU number at segfault time.

   The number printed is not always accurate (preemption is enabled at
   that time) but the print string contains "likely" and after a lot of
   back'n'forth on this, this was the consensus that was reached. See
   thread at [1].

 - After a *lot* of testing and polishing, finally the clear_user()
   improvements to inline REP; STOSB by default

Link: https://lore.kernel.org/r/5d62c1d0-7425-d5bb-ecb5-1dc3b4d7d245@intel.com [1]

* tag 'x86_cpu_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Print likely CPU at segfault time
  x86/clear_user: Make it faster
 2022-10-04 09:21:30 -07:00
Linus Torvalds
ba94a7a900 - Improve the documentation of a couple of SGX functions handling 
backing storage
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Merge tag 'x86_sgx_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SGX update from Borislav Petkov:

 - Improve the documentation of a couple of SGX functions handling
   backing storage

* tag 'x86_sgx_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Improve comments for sgx_encl_lookup/alloc_backing()
 2022-10-04 09:17:44 -07:00
Linus Torvalds
f8475a6749 - Cleanup x86/rtc.c and delete duplicated functionality in favor of 
using the respective functionality from the RTC library
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Merge tag 'x86_timers_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RTC cleanups from Borislav Petkov:

 - Cleanup x86/rtc.c and delete duplicated functionality in favor of
   using the respective functionality from the RTC library

* tag 'x86_timers_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/rtc: Rename mach_set_rtc_mmss() to mach_set_cmos_time()
  x86/rtc: Rewrite & simplify mach_get_cmos_time() by deleting duplicated functionality
 2022-10-04 09:13:21 -07:00
Linus Torvalds
3339914a58 - Get TSC and CPU frequency from CPUID leaf 0x40000010 when the kernel 
is running as a guest on the ACRN hypervisor
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Merge tag 'x86_platform_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform update from Borislav Petkov:
 "A single x86/platform improvement when the kernel is running as an
  ACRN guest:

   - Get TSC and CPU frequency from CPUID leaf 0x40000010 when the
     kernel is running as a guest on the ACRN hypervisor"

* tag 'x86_platform_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/acrn: Set up timekeeping
 2022-10-04 09:06:35 -07:00
Linus Torvalds
bf7676251b - Add support for Skylake-S CPUs to ie31200_edac 
- Improve error decoding speed of the Intel drivers by avoiding the ACPI facilities
   but doing decoding in the driver itself
 
 - Other misc improvements to the Intel drivers
 
 - The usual cleanups and fixlets all over EDAC land
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Merge tag 'edac_updates_for_v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - Add support for Skylake-S CPUs to ie31200_edac

 - Improve error decoding speed of the Intel drivers by avoiding the
   ACPI facilities but doing decoding in the driver itself

 - Other misc improvements to the Intel drivers

 - The usual cleanups and fixlets all over EDAC land

* tag 'edac_updates_for_v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/i7300: Correct the i7300_exit() function name in comment
  x86/sb_edac: Add row column translation for Broadwell
  EDAC/i10nm: Print an extra register set of retry_rd_err_log
  EDAC/i10nm: Retrieve and print retry_rd_err_log registers for HBM
  EDAC/skx_common: Add ChipSelect ADXL component
  EDAC/ppc_4xx: Reorder symbols to get rid of a few forward declarations
  EDAC: Remove obsolete declarations in edac_module.h
  EDAC/i10nm: Add driver decoder for Ice Lake and Tremont CPUs
  EDAC/skx_common: Make output format similar
  EDAC/skx_common: Use driver decoder first
  EDAC/mc: Drop duplicated dimm->nr_pages debug printout
  EDAC/mc: Replace spaces with tabs in memtype flags definition
  EDAC/wq: Remove unneeded flush_workqueue()
  EDAC/ie31200: Add Skylake-S support
 2022-10-04 08:58:02 -07:00
Borislav Petkov
c257795609 Merge branches 'edac-drivers' and 'edac-misc' into edac-updates-for-v6.1 
Combine all queued EDAC changes for submission into v6.1:

* edac-drivers:
  EDAC/ie31200: Add Skylake-S support

* edac-misc:
  EDAC/i7300: Correct the i7300_exit() function name in comment
  x86/sb_edac: Add row column translation for Broadwell
  EDAC/i10nm: Print an extra register set of retry_rd_err_log
  EDAC/i10nm: Retrieve and print retry_rd_err_log registers for HBM
  EDAC/skx_common: Add ChipSelect ADXL component
  EDAC/ppc_4xx: Reorder symbols to get rid of a few forward declarations
  EDAC: Remove obsolete declarations in edac_module.h
  EDAC/i10nm: Add driver decoder for Ice Lake and Tremont CPUs
  EDAC/skx_common: Make output format similar
  EDAC/skx_common: Use driver decoder first
  EDAC/mc: Drop duplicated dimm->nr_pages debug printout
  EDAC/mc: Replace spaces with tabs in memtype flags definition
  EDAC/wq: Remove unneeded flush_workqueue()

Signed-off-by: Borislav Petkov <bp@suse.de>
 2022-10-04 10:00:25 +02:00
Linus Torvalds
725737e7c2 STATX_DIOALIGN for 6.1 
Make statx() support reporting direct I/O (DIO) alignment information.
 This provides a generic interface for userspace programs to determine
 whether a file supports DIO, and if so with what alignment restrictions.
 Specifically, STATX_DIOALIGN works on block devices, and on regular
 files when their containing filesystem has implemented support.
 
 An interface like this has been requested for years, since the
 conditions for when DIO is supported in Linux have gotten increasingly
 complex over time.  Today, DIO support and alignment requirements can be
 affected by various filesystem features such as multi-device support,
 data journalling, inline data, encryption, verity, compression,
 checkpoint disabling, log-structured mode, etc.  Further complicating
 things, Linux v6.0 relaxed the traditional rule of DIO needing to be
 aligned to the block device's logical block size; now user buffers (but
 not file offsets) only need to be aligned to the DMA alignment.
 
 The approach of uplifting the XFS specific ioctl XFS_IOC_DIOINFO was
 discarded in favor of creating a clean new interface with statx().
 
 For more information, see the individual commits and the man page update
 https://lore.kernel.org/r/20220722074229.148925-1-ebiggers@kernel.org.
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Merge tag 'statx-dioalign-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull STATX_DIOALIGN support from Eric Biggers:
 "Make statx() support reporting direct I/O (DIO) alignment information.

  This provides a generic interface for userspace programs to determine
  whether a file supports DIO, and if so with what alignment
  restrictions. Specifically, STATX_DIOALIGN works on block devices, and
  on regular files when their containing filesystem has implemented
  support.

  An interface like this has been requested for years, since the
  conditions for when DIO is supported in Linux have gotten increasingly
  complex over time. Today, DIO support and alignment requirements can
  be affected by various filesystem features such as multi-device
  support, data journalling, inline data, encryption, verity,
  compression, checkpoint disabling, log-structured mode, etc.

  Further complicating things, Linux v6.0 relaxed the traditional rule
  of DIO needing to be aligned to the block device's logical block size;
  now user buffers (but not file offsets) only need to be aligned to the
  DMA alignment.

  The approach of uplifting the XFS specific ioctl XFS_IOC_DIOINFO was
  discarded in favor of creating a clean new interface with statx().

  For more information, see the individual commits and the man page
  update[1]"

Link: https://lore.kernel.org/r/20220722074229.148925-1-ebiggers@kernel.org [1]

* tag 'statx-dioalign-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  xfs: support STATX_DIOALIGN
  f2fs: support STATX_DIOALIGN
  f2fs: simplify f2fs_force_buffered_io()
  f2fs: move f2fs_force_buffered_io() into file.c
  ext4: support STATX_DIOALIGN
  fscrypt: change fscrypt_dio_supported() to prepare for STATX_DIOALIGN
  vfs: support STATX_DIOALIGN on block devices
  statx: add direct I/O alignment information
 2022-10-03 20:33:41 -07:00
Linus Torvalds
5779aa2dac fsverity updates for 6.1 
Minor changes to convert uses of kmap() to kmap_local_page().
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fsverity updates from Eric Biggers:
 "Minor changes to convert uses of kmap() to kmap_local_page()"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fs-verity: use kmap_local_page() instead of kmap()
  fs-verity: use memcpy_from_page()
 2022-10-03 20:27:34 -07:00
Linus Torvalds
438b2cdd17 fscrypt updates for 6.1 
This release contains some implementation changes, but no new features:
 
 - Rework the implementation of the fscrypt filesystem-level keyring to
   not be as tightly coupled to the keyrings subsystem.  This resolves
   several issues.
 
 - Eliminate most direct uses of struct request_queue from fs/crypto/,
   since struct request_queue is considered to be a block layer
   implementation detail.
 
 - Stop using the PG_error flag to track decryption failures.  This is a
   prerequisite for freeing up PG_error for other uses.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:
 "This release contains some implementation changes, but no new
  features:

   - Rework the implementation of the fscrypt filesystem-level keyring
     to not be as tightly coupled to the keyrings subsystem. This
     resolves several issues.

   - Eliminate most direct uses of struct request_queue from fs/crypto/,
     since struct request_queue is considered to be a block layer
     implementation detail.

   - Stop using the PG_error flag to track decryption failures. This is
     a prerequisite for freeing up PG_error for other uses"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fscrypt: work on block_devices instead of request_queues
  fscrypt: stop holding extra request_queue references
  fscrypt: stop using keyrings subsystem for fscrypt_master_key
  fscrypt: stop using PG_error to track error status
  fscrypt: remove fscrypt_set_test_dummy_encryption()
 2022-10-03 20:18:34 -07:00
Linus Torvalds
f4309528f3 dlm for 6.1 
This set of commits includes:
 . Fix a couple races found with a new torture test.
 . Improve errors when api functions are used incorrectly.
 . Improve tracing for lock requests from user space.
 . Fix use after free in recently added tracing code.
 . Small internal code cleanups.
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Merge tag 'dlm-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - Fix a couple races found with a new torture test

 - Improve errors when api functions are used incorrectly

 - Improve tracing for lock requests from user space

 - Fix use after free in recently added tracing cod.

 - Small internal code cleanups

* tag 'dlm-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: fix possible use after free if tracing
  fs: dlm: const void resource name parameter
  fs: dlm: LSFL_CB_DELAY only for kernel lockspaces
  fs: dlm: remove DLM_LSFL_FS from uapi
  fs: dlm: trace user space callbacks
  fs: dlm: change ls_clear_proc_locks to spinlock
  fs: dlm: remove dlm_del_ast prototype
  fs: dlm: handle rcom in else if branch
  fs: dlm: allow lockspaces have zero lvblen
  fs: dlm: fix invalid derefence of sb_lvbptr
  fs: dlm: handle -EINVAL as log_error()
  fs: dlm: use __func__ for function name
  fs: dlm: handle -EBUSY first in unlock validation
  fs: dlm: handle -EBUSY first in lock arg validation
  fs: dlm: fix race between test_bit() and queue_work()
  fs: dlm: fix race in lowcomms
 2022-10-03 20:11:59 -07:00
Linus Torvalds
f90497a16e NFSD 6.1 Release Notes 
This release is mostly bug fixes, clean-ups, and optimizations.
 
 One notable set of fixes addresses a subtle buffer overflow issue
 that occurs if a small RPC Call message arrives in an oversized
 RPC record. This is only possible on a framed RPC transport such
 as TCP.
 
 Because NFSD shares the receive and send buffers in one set of
 pages, an oversized RPC record steals pages from the send buffer
 that will be used to construct the RPC Reply message. NFSD must
 not assume that a full-sized buffer is always available to it;
 otherwise, it will walk off the end of the send buffer while
 constructing its reply.
 
 In this release, we also introduce the ability for the server to
 wait a moment for clients to return delegations before it responds
 with NFS4ERR_DELAY. This saves a retransmit and a network round-
 trip when a delegation recall is needed. This work will be built
 upon in future releases.
 
 The NFS server adds another shrinker to its collection. Because
 courtesy clients can linger for quite some time, they might be
 freeable when the server host comes under memory pressure. A new
 shrinker has been added that releases courtesy client resources
 during low memory scenarios.
 
 Lastly, of note: the maximum number of operations per NFSv4
 COMPOUND that NFSD can handle is increased from 16 to 50. There
 are NFSv4 client implementations that need more than 16 to
 successfully perform a mount operation that uses a pathname
 with many components.
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Merge tag 'nfsd-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "This release is mostly bug fixes, clean-ups, and optimizations.

  One notable set of fixes addresses a subtle buffer overflow issue that
  occurs if a small RPC Call message arrives in an oversized RPC record.
  This is only possible on a framed RPC transport such as TCP.

  Because NFSD shares the receive and send buffers in one set of pages,
  an oversized RPC record steals pages from the send buffer that will be
  used to construct the RPC Reply message. NFSD must not assume that a
  full-sized buffer is always available to it; otherwise, it will walk
  off the end of the send buffer while constructing its reply.

  In this release, we also introduce the ability for the server to wait
  a moment for clients to return delegations before it responds with
  NFS4ERR_DELAY. This saves a retransmit and a network round- trip when
  a delegation recall is needed. This work will be built upon in future
  releases.

  The NFS server adds another shrinker to its collection. Because
  courtesy clients can linger for quite some time, they might be
  freeable when the server host comes under memory pressure. A new
  shrinker has been added that releases courtesy client resources during
  low memory scenarios.

  Lastly, of note: the maximum number of operations per NFSv4 COMPOUND
  that NFSD can handle is increased from 16 to 50. There are NFSv4
  client implementations that need more than 16 to successfully perform
  a mount operation that uses a pathname with many components"

* tag 'nfsd-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (53 commits)
  nfsd: extra checks when freeing delegation stateids
  nfsd: make nfsd4_run_cb a bool return function
  nfsd: fix comments about spinlock handling with delegations
  nfsd: only fill out return pointer on success in nfsd4_lookup_stateid
  NFSD: fix use-after-free on source server when doing inter-server copy
  NFSD: Cap rsize_bop result based on send buffer size
  NFSD: Rename the fields in copy_stateid_t
  nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_file_cache_stats_fops
  nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops
  nfsd: use DEFINE_SHOW_ATTRIBUTE to define client_info_fops
  nfsd: use DEFINE_SHOW_ATTRIBUTE to define export_features_fops and supported_enctypes_fops
  nfsd: use DEFINE_PROC_SHOW_ATTRIBUTE to define nfsd_proc_ops
  NFSD: Pack struct nfsd4_compoundres
  NFSD: Remove unused nfsd4_compoundargs::cachetype field
  NFSD: Remove "inline" directives on op_rsize_bop helpers
  NFSD: Clean up nfs4svc_encode_compoundres()
  SUNRPC: Fix typo in xdr_buf_subsegment's kdoc comment
  NFSD: Clean up WRITE arg decoders
  NFSD: Use xdr_inline_decode() to decode NFSv3 symlinks
  NFSD: Refactor common code out of dirlist helpers
  ...
 2022-10-03 20:07:15 -07:00
Linus Torvalds
3497640a80 Changes since last update: 
- Introduce fscache-based domain to share blobs between images;
 
  - Support recording fragments in a special packed inode;
 
  - Support partial-referenced pclusters for global compressed data
    deduplication;
 
  - Fix an order >= MAX_ORDER warning due to crafted negative i_size;
 
  - Several cleanups.
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Merge tag 'erofs-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "In this cycle, for container use cases, fscache-based shared domain is
  introduced [1] so that data blobs in the same domain will be storage
  deduplicated and it will also be used for page cache sharing later.

  Also, a special packed inode is now introduced to record inode
  fragments which keep the tail part of files by Yue Hu [2]. You can
  keep arbitary length or (at will) the whole file as a fragment and
  then fragments can be optionally compressed in the packed inode
  together and even deduplicated for smaller image sizes.

  In addition to that, global compressed data deduplication by sharing
  partial-referenced pclusters is also supported in this cycle.

  Summary:

   - Introduce fscache-based domain to share blobs between images

   - Support recording fragments in a special packed inode

   - Support partial-referenced pclusters for global compressed data
     deduplication

   - Fix an order >= MAX_ORDER warning due to crafted negative i_size

   - Several cleanups"

Link: https://lore.kernel.org/r/20220916085940.89392-1-zhujia.zj@bytedance.com [1]
Link: https://lore.kernel.org/r/cover.1663065968.git.huyue2@coolpad.com [2]

* tag 'erofs-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: clean up erofs_iget()
  erofs: clean up unnecessary code and comments
  erofs: fold in z_erofs_reload_indexes()
  erofs: introduce partial-referenced pclusters
  erofs: support on-disk compressed fragments data
  erofs: support interlaced uncompressed data for compressed files
  erofs: clean up .read_folio() and .readahead() in fscache mode
  erofs: introduce 'domain_id' mount option
  erofs: Support sharing cookies in the same domain
  erofs: introduce a pseudo mnt to manage shared cookies
  erofs: introduce fscache-based domain
  erofs: code clean up for fscache
  erofs: use kill_anon_super() to kill super in fscache mode
  erofs: fix order >= MAX_ORDER warning due to crafted negative i_size
 2022-10-03 20:01:40 -07:00
Linus Torvalds
8bea8ff34a fs.vfsuid.fat.v6.1 
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Merge tag 'fs.vfsuid.fat.v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull fatfs vfsuid conversion from Christian Brauner:
 "Last cycle we introduced the new vfs{g,u}id_t types that we had agreed
  on. The most important parts of the vfs have been converted but there
  are a few more places we need to switch before we can remove the old
  helpers completely.

  This cycle we converted all filesystems that called idmapped mount
  helpers directly. The affected filesystems are f2fs, fat, fuse, ksmbd,
  overlayfs, and xfs. We've sent patches for all of them. Looking at
  -next f2fs, ksmbd, overlayfs, and xfs have all picked up these patches
  and they should land in mainline during the v6.1 merge window.

  So all filesystems that have a separate tree should send the vfsuid
  conversion themselves. Onle the fat conversion is going through this
  generic fs trees because there is no fat tree.

  In order to change time settings on an inode fat checks that the
  caller either is the owner of the inode or the inode's group is in the
  caller's group list. If fat is on an idmapped mount we compare whether
  the inode mapped into the mount is equivalent to the caller's fsuid.
  If it isn't we compare whether the inode's group mapped into the mount
  is in the caller's group list.

  We now use the new vfsuid based helpers for that"

* tag 'fs.vfsuid.fat.v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  fat: port to vfs{g,u}id_t and associated helpers
 2022-10-03 19:54:29 -07:00
Linus Torvalds
223b845253 fs.acl.rework.prep.v6.1 
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Merge tag 'fs.acl.rework.prep.v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfs acl updates from Christian Brauner:
 "These are general fixes and preparatory changes related to the ongoing
  posix acl rework. The actual rework where we build a type safe posix
  acl api wasn't ready for this merge window but we're hopeful for the
  next merge window.

  General fixes:

   - Some filesystems like 9p and cifs have to implement custom posix
     acl handlers because they require access to the dentry in order to
     set and get posix acls while the set and get inode operations
     currently don't. But the ntfs3 filesystem has no such requirement
     and thus implemented custom posix acl xattr handlers when it really
     didn't have to. So this pr contains patch that just implements set
     and get inode operations for ntfs3 and switches it to rely on the
     generic posix acl xattr handlers. (We would've appreciated reviews
     from the ntfs3 maintainers but we didn't get any. But hey, if we
     really broke it we'll fix it. But fstests for ntfs3 said it's
     fine.)

   - The posix_acl_fix_xattr_common() helper has been adapted so it can
     be used by a few more callers and avoiding open-coding the same
     checks over and over.

  Other than the two general fixes this series introduces a new helper
  vfs_set_acl_prepare(). The reason for this helper is so that we can
  mitigate one of the source that change {g,u}id values directly in the
  uapi struct. With the vfs_set_acl_prepare() helper we can move the
  idmapped mount fixup into the generic posix acl set handler.

  The advantage of this is that it allows us to remove the
  posix_acl_setxattr_idmapped_mnt() helper which so far we had to call
  in vfs_setxattr() to account for idmapped mounts. While semantically
  correct the problem with this approach was that we had to keep the
  value parameter of the generic vfs_setxattr() call as non-const. This
  is rectified in this series.

  Ultimately, we will get rid of all the extreme kludges and type
  unsafety once we have merged the posix api - hopefully during the next
  merge window - built solely around get and set inode operations. Which
  incidentally will also improve handling of posix acls in security and
  especially in integrity modesl. While this will come with temporarily
  having two inode operation for posix acls that is nothing compared to
  the problems we have right now and so well worth it. We'll end up with
  something that we can actually reason about instead of needing to
  write novels to explain what's going on"

* tag 'fs.acl.rework.prep.v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  xattr: always us is_posix_acl_xattr() helper
  acl: fix the comments of posix_acl_xattr_set
  xattr: constify value argument in vfs_setxattr()
  ovl: use vfs_set_acl_prepare()
  acl: move idmapping handling into posix_acl_xattr_set()
  acl: add vfs_set_acl_prepare()
  acl: return EOPNOTSUPP in posix_acl_fix_xattr_common()
  ntfs3: rework xattr handlers and switch to POSIX ACL VFS helpers
 2022-10-03 19:48:54 -07:00
Linus Torvalds
da380aefdd fs/coredump fix 
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull coredump fix from Al Viro:
 "Brown paper bag bug fix for the coredumping fix late in the 6.0
  release cycle"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  [brown paperbag] fix coredump breakage
 2022-10-03 18:03:58 -07:00
Linus Torvalds
26b84401da lsm/stable-6.1 PR 20221003 
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Merge tag 'lsm-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull LSM updates from Paul Moore:
 "Seven patches for the LSM layer and we've got a mix of trivial and
  significant patches. Highlights below, starting with the smaller bits
  first so they don't get lost in the discussion of the larger items:

   - Remove some redundant NULL pointer checks in the common LSM audit
     code.

   - Ratelimit the lockdown LSM's access denial messages.

     With this change there is a chance that the last visible lockdown
     message on the console is outdated/old, but it does help preserve
     the initial series of lockdown denials that started the denial
     message flood and my gut feeling is that these might be the more
     valuable messages.

   - Open userfaultfds as readonly instead of read/write.

     While this code obviously lives outside the LSM, it does have a
     noticeable impact on the LSMs with Ondrej explaining the situation
     in the commit description. It is worth noting that this patch
     languished on the VFS list for over a year without any comments
     (objections or otherwise) so I took the liberty of pulling it into
     the LSM tree after giving fair notice. It has been in linux-next
     since the end of August without any noticeable problems.

   - Add a LSM hook for user namespace creation, with implementations
     for both the BPF LSM and SELinux.

     Even though the changes are fairly small, this is the bulk of the
     diffstat as we are also including BPF LSM selftests for the new
     hook.

     It's also the most contentious of the changes in this pull request
     with Eric Biederman NACK'ing the LSM hook multiple times during its
     development and discussion upstream. While I've never taken NACK's
     lightly, I'm sending these patches to you because it is my belief
     that they are of good quality, satisfy a long-standing need of
     users and distros, and are in keeping with the existing nature of
     the LSM layer and the Linux Kernel as a whole.

     The patches in implement a LSM hook for user namespace creation
     that allows for a granular approach, configurable at runtime, which
     enables both monitoring and control of user namespaces. The general
     consensus has been that this is far preferable to the other
     solutions that have been adopted downstream including outright
     removal from the kernel, disabling via system wide sysctls, or
     various other out-of-tree mechanisms that users have been forced to
     adopt since we haven't been able to provide them an upstream
     solution for their requests. Eric has been steadfast in his
     objections to this LSM hook, explaining that any restrictions on
     the user namespace could have significant impact on userspace.
     While there is the possibility of impacting userspace, it is
     important to note that this solution only impacts userspace when it
     is requested based on the runtime configuration supplied by the
     distro/admin/user. Frederick (the pathset author), the LSM/security
     community, and myself have tried to work with Eric during
     development of this patchset to find a mutually acceptable
     solution, but Eric's approach and unwillingness to engage in a
     meaningful way have made this impossible. I have CC'd Eric directly
     on this pull request so he has a chance to provide his side of the
     story; there have been no objections outside of Eric's"

* tag 'lsm-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  lockdown: ratelimit denial messages
  userfaultfd: open userfaultfds with O_RDONLY
  selinux: Implement userns_create hook
  selftests/bpf: Add tests verifying bpf lsm userns_create hook
  bpf-lsm: Make bpf_lsm_userns_create() sleepable
  security, lsm: Introduce security_create_user_ns()
  lsm: clean up redundant NULL pointer check
 2022-10-03 17:51:52 -07:00
Linus Torvalds
e816da29bc selinux/stable-6.1 PR 20221003 
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Merge tag 'selinux-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux updates from Paul Moore:
 "Six SELinux patches, all are simple and easily understood, but a list
  of the highlights is below:

   - Use 'grep -E' instead of 'egrep' in the SELinux policy install
     script.

     Fun fact, this seems to be GregKH's *second* dedicated SELinux
     patch since we transitioned to git (ignoring merges, the SPDX
     stuff, and a trivial fs reference removal when lustre was yanked);
     the first was back in 2011 when selinuxfs was placed in
     /sys/fs/selinux. Oh, the memories ...

   - Convert the SELinux policy boolean values to use signed integer
     types throughout the SELinux kernel code.

     Prior to this we were using a mix of signed and unsigned integers
     which was probably okay in this particular case, but it is
     definitely not a good idea in general.

   - Remove a reference to the SELinux runtime disable functionality in
     /etc/selinux/config as we are in the process of deprecating that.

     See [1] for more background on this if you missed the previous
     notes on the deprecation.

   - Minor cleanups: remove unneeded variables and function parameter
     constification"

Link: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-runtime-disable [1]

* tag 'selinux-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: remove runtime disable message in the install_policy.sh script
  selinux: use "grep -E" instead of "egrep"
  selinux: remove the unneeded result variable
  selinux: declare read-only parameters const
  selinux: use int arrays for boolean values
  selinux: remove an unneeded variable in sel_make_class_dir_entries()
 2022-10-03 17:45:15 -07:00
Linus Torvalds
eafb121ec0 integrity-v6.1 
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Merge tag 'integrity-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity updates from Mimi Zohar:
 "Just two bug fixes"

* tag 'integrity-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  efi: Correct Macmini DMI match in uefi cert quirk
  ima: fix blocking of security.ima xattrs of unsupported algorithms
 2022-10-03 17:42:12 -07:00
Linus Torvalds
74a0f84590 Smack updates for v6.1 
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Merge tag 'Smack-for-6.1' of https://github.com/cschaufler/smack-next

Pull smack updates from Casey Schaufler:
 "Two minor code clean-ups: one removes constants left over from the old
  mount API, while the other gets rid of an unneeded variable.

  The other change fixes a flaw in handling IPv6 labeling"

* tag 'Smack-for-6.1' of https://github.com/cschaufler/smack-next:
  smack: cleanup obsolete mount option flags
  smack: lsm: remove the unneeded result variable
  SMACK: Add sk_clone_security LSM hook
 2022-10-03 17:38:09 -07:00
Al Viro
4f526fef91 [brown paperbag] fix coredump breakage 
Let me count the ways in which I'd screwed up:

* when emitting a page, handling of gaps in coredump should happen
before fetching the current file position.
* fix for a problem that occurs on rather uncommon setups (and hadn't
been observed in the wild) had been sent very late in the cycle.
* ... with badly insufficient testing, introducing an easily
reproducible breakage.  Without giving it time to soak in -next.

Fucked-up-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: "J. R. Okajima" <hooanon05g@gmail.com>
Tested-by: "J. R. Okajima" <hooanon05g@gmail.com>
Fixes: 06bbaa6dc5 "[coredump] don't use __kernel_write() on kmap_local_page()"
Cc: stable@kernel.org	# v6.0-only
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2022-10-03 20:28:38 -04:00
Linus Torvalds
d0989d01c6 hardening updates for v6.1-rc1 
Various fixes across several hardening areas:
 
 - loadpin: Fix verity target enforcement (Matthias Kaehlcke).
 
 - zero-call-used-regs: Add missing clobbers in paravirt (Bill Wendling).
 
 - CFI: clean up sparc function pointer type mismatches (Bart Van Assche).
 
 - Clang: Adjust compiler flag detection for various Clang changes (Sami
   Tolvanen, Kees Cook).
 
 - fortify: Fix warnings in arch-specific code in sh, ARM, and xen.
 
 Improvements to existing features:
 
 - testing: improve overflow KUnit test, introduce fortify KUnit test,
   add more coverage to LKDTM tests (Bart Van Assche, Kees Cook).
 
 - overflow: Relax overflow type checking for wider utility.
 
 New features:
 
 - string: Introduce strtomem() and strtomem_pad() to fill a gap in
   strncpy() replacement needs.
 
 - um: Enable FORTIFY_SOURCE support.
 
 - fortify: Enable run-time struct member memcpy() overflow warning.
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Merge tag 'hardening-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull kernel hardening updates from Kees Cook:
 "Most of the collected changes here are fixes across the tree for
  various hardening features (details noted below).

  The most notable new feature here is the addition of the memcpy()
  overflow warning (under CONFIG_FORTIFY_SOURCE), which is the next step
  on the path to killing the common class of "trivially detectable"
  buffer overflow conditions (i.e. on arrays with sizes known at compile
  time) that have resulted in many exploitable vulnerabilities over the
  years (e.g. BleedingTooth).

  This feature is expected to still have some undiscovered false
  positives. It's been in -next for a full development cycle and all the
  reported false positives have been fixed in their respective trees.
  All the known-bad code patterns we could find with Coccinelle are also
  either fixed in their respective trees or in flight.

  The commit message in commit 54d9469bc5 ("fortify: Add run-time WARN
  for cross-field memcpy()") for the feature has extensive details, but
  I'll repeat here that this is a warning _only_, and is not intended to
  actually block overflows (yet). The many patches fixing array sizes
  and struct members have been landing for several years now, and we're
  finally able to turn this on to find any remaining stragglers.

  Summary:

  Various fixes across several hardening areas:

   - loadpin: Fix verity target enforcement (Matthias Kaehlcke).

   - zero-call-used-regs: Add missing clobbers in paravirt (Bill
     Wendling).

   - CFI: clean up sparc function pointer type mismatches (Bart Van
     Assche).

   - Clang: Adjust compiler flag detection for various Clang changes
     (Sami Tolvanen, Kees Cook).

   - fortify: Fix warnings in arch-specific code in sh, ARM, and xen.

  Improvements to existing features:

   - testing: improve overflow KUnit test, introduce fortify KUnit test,
     add more coverage to LKDTM tests (Bart Van Assche, Kees Cook).

   - overflow: Relax overflow type checking for wider utility.

  New features:

   - string: Introduce strtomem() and strtomem_pad() to fill a gap in
     strncpy() replacement needs.

   - um: Enable FORTIFY_SOURCE support.

   - fortify: Enable run-time struct member memcpy() overflow warning"

* tag 'hardening-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (27 commits)
  Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
  hardening: Remove Clang's enable flag for -ftrivial-auto-var-init=zero
  sparc: Unbreak the build
  x86/paravirt: add extra clobbers with ZERO_CALL_USED_REGS enabled
  x86/paravirt: clean up typos and grammaros
  fortify: Convert to struct vs member helpers
  fortify: Explicitly check bounds are compile-time constants
  x86/entry: Work around Clang __bdos() bug
  ARM: decompressor: Include .data.rel.ro.local
  fortify: Adjust KUnit test for modular build
  sh: machvec: Use char[] for section boundaries
  kunit/memcpy: Avoid pathological compile-time string size
  lib: Improve the is_signed_type() kunit test
  LoadPin: Require file with verity root digests to have a header
  dm: verity-loadpin: Only trust verity targets with enforcement
  LoadPin: Fix Kconfig doc about format of file with verity digests
  um: Enable FORTIFY_SOURCE
  lkdtm: Update tests for memcpy() run-time warnings
  fortify: Add run-time WARN for cross-field memcpy()
  fortify: Use SIZE_MAX instead of (size_t)-1
  ...
 2022-10-03 17:24:22 -07:00
Linus Torvalds
865dad2022 kcfi updates for v6.1-rc1 
This replaces the prior support for Clang's standard Control Flow
 Integrity (CFI) instrumentation, which has required a lot of special
 conditions (e.g. LTO) and work-arounds. The current implementation
 ("Kernel CFI") is specific to C, directly designed for the Linux kernel,
 and takes advantage of architectural features like x86's IBT. This
 series retains arm64 support and adds x86 support. Additional "generic"
 architectural support is expected soon:
 https://github.com/samitolvanen/llvm-project/commits/kcfi_generic
 
 - treewide: Remove old CFI support details
 
 - arm64: Replace Clang CFI support with Clang KCFI support
 
 - x86: Introduce Clang KCFI support
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Merge tag 'kcfi-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull kcfi updates from Kees Cook:
 "This replaces the prior support for Clang's standard Control Flow
  Integrity (CFI) instrumentation, which has required a lot of special
  conditions (e.g. LTO) and work-arounds.

  The new implementation ("Kernel CFI") is specific to C, directly
  designed for the Linux kernel, and takes advantage of architectural
  features like x86's IBT. This series retains arm64 support and adds
  x86 support.

  GCC support is expected in the future[1], and additional "generic"
  architectural support is expected soon[2].

  Summary:

   - treewide: Remove old CFI support details

   - arm64: Replace Clang CFI support with Clang KCFI support

   - x86: Introduce Clang KCFI support"

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107048 [1]
Link: https://github.com/samitolvanen/llvm-project/commits/kcfi_generic [2]

* tag 'kcfi-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (22 commits)
  x86: Add support for CONFIG_CFI_CLANG
  x86/purgatory: Disable CFI
  x86: Add types to indirectly called assembly functions
  x86/tools/relocs: Ignore __kcfi_typeid_ relocations
  kallsyms: Drop CONFIG_CFI_CLANG workarounds
  objtool: Disable CFI warnings
  objtool: Preserve special st_shndx indexes in elf_update_symbol
  treewide: Drop __cficanonical
  treewide: Drop WARN_ON_FUNCTION_MISMATCH
  treewide: Drop function_nocfi
  init: Drop __nocfi from __init
  arm64: Drop unneeded __nocfi attributes
  arm64: Add CFI error handling
  arm64: Add types to indirect called assembly functions
  psci: Fix the function type for psci_initcall_t
  lkdtm: Emit an indirect call for CFI tests
  cfi: Add type helper macros
  cfi: Switch to -fsanitize=kcfi
  cfi: Drop __CFI_ADDRESSABLE
  cfi: Remove CONFIG_CFI_CLANG_SHADOW
  ...
 2022-10-03 17:11:07 -07:00
Linus Torvalds
12ed00ba01 execve updates for v6.1-rc1 
- Remove a.out implementation globally (Eric W. Biederman)
 
 - Remove unused linux_binprm::taso member (Lukas Bulwahn)
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Merge tag 'execve-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:
 "This removes a.out support globally; it has been disabled for a while
  now.

   - Remove a.out implementation globally (Eric W. Biederman)

   - Remove unused linux_binprm::taso member (Lukas Bulwahn)"

* tag 'execve-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  binfmt: remove taso from linux_binprm struct
  a.out: Remove the a.out implementation
 2022-10-03 16:56:40 -07:00
Linus Torvalds
8aebac8293 Rust introduction for v6.1-rc1 
The initial support of Rust-for-Linux comes in roughly 4 areas:
 
 - Kernel internals (kallsyms expansion for Rust symbols, %pA format)
 
 - Kbuild infrastructure (Rust build rules and support scripts)
 
 - Rust crates and bindings for initial minimum viable build
 
 - Rust kernel documentation and samples
 
 Rust support has been in linux-next for a year and a half now, and the
 short log doesn't do justice to the number of people who have contributed
 both to the Linux kernel side but also to the upstream Rust side to
 support the kernel's needs. Thanks to these 173 people, and many more,
 who have been involved in all kinds of ways:
 
 Miguel Ojeda, Wedson Almeida Filho, Alex Gaynor, Boqun Feng, Gary Guo,
 Björn Roy Baron, Andreas Hindborg, Adam Bratschi-Kaye, Benno Lossin,
 Maciej Falkowski, Finn Behrens, Sven Van Asbroeck, Asahi Lina, FUJITA
 Tomonori, John Baublitz, Wei Liu, Geoffrey Thomas, Philip Herron,
 Arthur Cohen, David Faust, Antoni Boucher, Philip Li, Yujie Liu,
 Jonathan Corbet, Greg Kroah-Hartman, Paul E. McKenney, Josh Triplett,
 Kent Overstreet, David Gow, Alice Ryhl, Robin Randhawa, Kees Cook,
 Nick Desaulniers, Matthew Wilcox, Linus Walleij, Joe Perches, Michael
 Ellerman, Petr Mladek, Masahiro Yamada, Arnaldo Carvalho de Melo,
 Andrii Nakryiko, Konstantin Shelekhin, Rasmus Villemoes, Konstantin
 Ryabitsev, Stephen Rothwell, Andy Shevchenko, Sergey Senozhatsky, John
 Paul Adrian Glaubitz, David Laight, Nathan Chancellor, Jonathan
 Cameron, Daniel Latypov, Shuah Khan, Brendan Higgins, Julia Lawall,
 Laurent Pinchart, Geert Uytterhoeven, Akira Yokosawa, Pavel Machek,
 David S. Miller, John Hawley, James Bottomley, Arnd Bergmann,
 Christian Brauner, Dan Robertson, Nicholas Piggin, Zhouyi Zhou, Elena
 Zannoni, Jose E. Marchesi, Leon Romanovsky, Will Deacon, Richard
 Weinberger, Randy Dunlap, Paolo Bonzini, Roland Dreier, Mark Brown,
 Sasha Levin, Ted Ts'o, Steven Rostedt, Jarkko Sakkinen, Michal
 Kubecek, Marco Elver, Al Viro, Keith Busch, Johannes Berg, Jan Kara,
 David Sterba, Connor Kuehl, Andy Lutomirski, Andrew Lunn, Alexandre
 Belloni, Peter Zijlstra, Russell King, Eric W. Biederman, Willy
 Tarreau, Christoph Hellwig, Emilio Cobos Álvarez, Christian Poveda,
 Mark Rousskov, John Ericson, TennyZhuang, Xuanwo, Daniel Paoliello,
 Manish Goregaokar, comex, Josh Stone, Stephan Sokolow, Philipp Krones,
 Guillaume Gomez, Joshua Nelson, Mats Larsen, Marc Poulhiès, Samantha
 Miller, Esteban Blanc, Martin Schmidt, Martin Rodriguez Reboredo,
 Daniel Xu, Viresh Kumar, Bartosz Golaszewski, Vegard Nossum, Milan
 Landaverde, Dariusz Sosnowski, Yuki Okushi, Matthew Bakhtiari, Wu
 XiangCheng, Tiago Lam, Boris-Chengbiao Zhou, Sumera Priyadarsini,
 Viktor Garske, Niklas Mohrin, Nándor István Krácser, Morgan Bartlett,
 Miguel Cano, Léo Lanteri Thauvin, Julian Merkle, Andreas Reindl,
 Jiapeng Chong, Fox Chen, Douglas Su, Antonio Terceiro, SeongJae Park,
 Sergio González Collado, Ngo Iok Ui (Wu Yu Wei), Joshua Abraham,
 Milan, Daniel Kolsoi, ahomescu, Manas, Luis Gerhorst, Li Hongyu,
 Philipp Gesang, Russell Currey, Jalil David Salamé Messina, Jon Olson,
 Raghvender, Angelos, Kaviraj Kanagaraj, Paul Römer, Sladyn Nunes,
 Mauro Baladés, Hsiang-Cheng Yang, Abhik Jain, Hongyu Li, Sean Nash,
 Yuheng Su, Peng Hao, Anhad Singh, Roel Kluin, Sara Saa, Geert
 Stappers, Garrett LeSage, IFo Hancroft, and Linus Torvalds.
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Merge tag 'rust-v6.1-rc1' of https://github.com/Rust-for-Linux/linux

Pull Rust introductory support from Kees Cook:
 "The tree has a recent base, but has fundamentally been in linux-next
  for a year and a half[1]. It's been updated based on feedback from the
  Kernel Maintainer's Summit, and to gain recent Reviewed-by: tags.

  Miguel is the primary maintainer, with me helping where needed/wanted.
  Our plan is for the tree to switch to the standard non-rebasing
  practice once this initial infrastructure series lands.

  The contents are the absolute minimum to get Rust code building in the
  kernel, with many more interfaces[2] (and drivers - NVMe[3], 9p[4], M1
  GPU[5]) on the way.

  The initial support of Rust-for-Linux comes in roughly 4 areas:

   - Kernel internals (kallsyms expansion for Rust symbols, %pA format)

   - Kbuild infrastructure (Rust build rules and support scripts)

   - Rust crates and bindings for initial minimum viable build

   - Rust kernel documentation and samples

  Rust support has been in linux-next for a year and a half now, and the
  short log doesn't do justice to the number of people who have
  contributed both to the Linux kernel side but also to the upstream
  Rust side to support the kernel's needs. Thanks to these 173 people,
  and many more, who have been involved in all kinds of ways:

  Miguel Ojeda, Wedson Almeida Filho, Alex Gaynor, Boqun Feng, Gary Guo,
  Björn Roy Baron, Andreas Hindborg, Adam Bratschi-Kaye, Benno Lossin,
  Maciej Falkowski, Finn Behrens, Sven Van Asbroeck, Asahi Lina, FUJITA
  Tomonori, John Baublitz, Wei Liu, Geoffrey Thomas, Philip Herron,
  Arthur Cohen, David Faust, Antoni Boucher, Philip Li, Yujie Liu,
  Jonathan Corbet, Greg Kroah-Hartman, Paul E. McKenney, Josh Triplett,
  Kent Overstreet, David Gow, Alice Ryhl, Robin Randhawa, Kees Cook,
  Nick Desaulniers, Matthew Wilcox, Linus Walleij, Joe Perches, Michael
  Ellerman, Petr Mladek, Masahiro Yamada, Arnaldo Carvalho de Melo,
  Andrii Nakryiko, Konstantin Shelekhin, Rasmus Villemoes, Konstantin
  Ryabitsev, Stephen Rothwell, Andy Shevchenko, Sergey Senozhatsky, John
  Paul Adrian Glaubitz, David Laight, Nathan Chancellor, Jonathan
  Cameron, Daniel Latypov, Shuah Khan, Brendan Higgins, Julia Lawall,
  Laurent Pinchart, Geert Uytterhoeven, Akira Yokosawa, Pavel Machek,
  David S. Miller, John Hawley, James Bottomley, Arnd Bergmann,
  Christian Brauner, Dan Robertson, Nicholas Piggin, Zhouyi Zhou, Elena
  Zannoni, Jose E. Marchesi, Leon Romanovsky, Will Deacon, Richard
  Weinberger, Randy Dunlap, Paolo Bonzini, Roland Dreier, Mark Brown,
  Sasha Levin, Ted Ts'o, Steven Rostedt, Jarkko Sakkinen, Michal
  Kubecek, Marco Elver, Al Viro, Keith Busch, Johannes Berg, Jan Kara,
  David Sterba, Connor Kuehl, Andy Lutomirski, Andrew Lunn, Alexandre
  Belloni, Peter Zijlstra, Russell King, Eric W. Biederman, Willy
  Tarreau, Christoph Hellwig, Emilio Cobos Álvarez, Christian Poveda,
  Mark Rousskov, John Ericson, TennyZhuang, Xuanwo, Daniel Paoliello,
  Manish Goregaokar, comex, Josh Stone, Stephan Sokolow, Philipp Krones,
  Guillaume Gomez, Joshua Nelson, Mats Larsen, Marc Poulhiès, Samantha
  Miller, Esteban Blanc, Martin Schmidt, Martin Rodriguez Reboredo,
  Daniel Xu, Viresh Kumar, Bartosz Golaszewski, Vegard Nossum, Milan
  Landaverde, Dariusz Sosnowski, Yuki Okushi, Matthew Bakhtiari, Wu
  XiangCheng, Tiago Lam, Boris-Chengbiao Zhou, Sumera Priyadarsini,
  Viktor Garske, Niklas Mohrin, Nándor István Krácser, Morgan Bartlett,
  Miguel Cano, Léo Lanteri Thauvin, Julian Merkle, Andreas Reindl,
  Jiapeng Chong, Fox Chen, Douglas Su, Antonio Terceiro, SeongJae Park,
  Sergio González Collado, Ngo Iok Ui (Wu Yu Wei), Joshua Abraham,
  Milan, Daniel Kolsoi, ahomescu, Manas, Luis Gerhorst, Li Hongyu,
  Philipp Gesang, Russell Currey, Jalil David Salamé Messina, Jon Olson,
  Raghvender, Angelos, Kaviraj Kanagaraj, Paul Römer, Sladyn Nunes,
  Mauro Baladés, Hsiang-Cheng Yang, Abhik Jain, Hongyu Li, Sean Nash,
  Yuheng Su, Peng Hao, Anhad Singh, Roel Kluin, Sara Saa, Geert
  Stappers, Garrett LeSage, IFo Hancroft, and Linus Torvalds"

Link: https://lwn.net/Articles/849849/ [1]
Link: https://github.com/Rust-for-Linux/linux/commits/rust [2]
Link: d88c3744d6 [3]
Link: 9367032607 [4]
Link: https://github.com/AsahiLinux/linux/commits/gpu/rust-wip [5]

* tag 'rust-v6.1-rc1' of https://github.com/Rust-for-Linux/linux: (27 commits)
  MAINTAINERS: Rust
  samples: add first Rust examples
  x86: enable initial Rust support
  docs: add Rust documentation
  Kbuild: add Rust support
  rust: add `.rustfmt.toml`
  scripts: add `is_rust_module.sh`
  scripts: add `rust_is_available.sh`
  scripts: add `generate_rust_target.rs`
  scripts: add `generate_rust_analyzer.py`
  scripts: decode_stacktrace: demangle Rust symbols
  scripts: checkpatch: enable language-independent checks for Rust
  scripts: checkpatch: diagnose uses of `%pA` in the C side as errors
  vsprintf: add new `%pA` format specifier
  rust: export generated symbols
  rust: add `kernel` crate
  rust: add `bindings` crate
  rust: add `macros` crate
  rust: add `compiler_builtins` crate
  rust: adapt `alloc` crate to the kernel
  ...
 2022-10-03 16:39:37 -07:00
Linus Torvalds
a5088ee725 Thermal control updates for 6.1-rc1 
- Rework the device tree initialization, convert the drivers to the
    new API and remove the old OF code (Daniel Lezcano).
 
  - Fix return value to -ENODEV when searching for a specific thermal
    zone which does not exist (Daniel Lezcano).
 
  - Fix the return value inspection in of_thermal_zone_find() (Dan
    Carpenter).
 
  - Fix kernel panic when KASAN is enabled as it detects use after
    free when unregistering a thermal zone (Daniel Lezcano).
 
  - Move the set_trip ops inside the therma sysfs code (Daniel Lezcano).
 
  - Remove unnecessary error message as it is already shown in the
    underlying function (Jiapeng Chong).
 
  - Rework the monitoring path and move the locks upper in the call
    stack to fix some potentials race windows (Daniel Lezcano).
 
  - Fix lockdep_assert() warning introduced by the lock rework (Daniel
    Lezcano).
 
  - Do not lock thermal zone mutex in the user space governor (Rafael
    Wysocki).
 
  - Revert the Mellanox 'hotter thermal zone' feature because it is
    already handled in the thermal framework core code (Daniel Lezcano).
 
  - Increase maximum number of trip points in the thermal core (Sumeet
    Pawnikar).
 
  - Replace strlcpy() with unused retval with strscpy() in the core
    thermal control code (Wolfram Sang).
 
  - Use module_pci_driver() macro in the int340x processor_thermal
    driver (Shang XiaoJing).
 
  - Use get_cpu() instead of smp_processor_id() in the intel_powerclamp
    thermal driver to prevent it from crashing and remove unused
    accounting for IRQ wakes from it (Srinivas Pandruvada).
 
  - Consolidate priv->data_vault checks in int340x_thermal (Rafael
    Wysocki).
 
  - Check the policy first in cpufreq_cooling_register() (Xuewen Yan).
 
  - Drop redundant error message from da9062-thermal (zhaoxiao).
 
  - Drop of_match_ptr() from thermal_mmio (Jean Delvare).
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Merge tag 'thermal-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "The most significant part of this update is the thermal control DT
  initialization rework from Daniel Lezcano and the following conversion
  of drivers to use the new API introduced by it

  Apart from that, the maximum number of trip points in a thermal zone
  is increased and there are some fixes and code cleanups

  Specifics:

   - Rework the device tree initialization, convert the drivers to the
     new API and remove the old OF code (Daniel Lezcano)

   - Fix return value to -ENODEV when searching for a specific thermal
     zone which does not exist (Daniel Lezcano)

   - Fix the return value inspection in of_thermal_zone_find() (Dan
     Carpenter)

   - Fix kernel panic when KASAN is enabled as it detects use after free
     when unregistering a thermal zone (Daniel Lezcano)

   - Move the set_trip ops inside the therma sysfs code (Daniel Lezcano)

   - Remove unnecessary error message as it is already shown in the
     underlying function (Jiapeng Chong)

   - Rework the monitoring path and move the locks upper in the call
     stack to fix some potentials race windows (Daniel Lezcano)

   - Fix lockdep_assert() warning introduced by the lock rework (Daniel
     Lezcano)

   - Do not lock thermal zone mutex in the user space governor (Rafael
     Wysocki)

   - Revert the Mellanox 'hotter thermal zone' feature because it is
     already handled in the thermal framework core code (Daniel Lezcano)

   - Increase maximum number of trip points in the thermal core (Sumeet
     Pawnikar)

   - Replace strlcpy() with unused retval with strscpy() in the core
     thermal control code (Wolfram Sang)

   - Use module_pci_driver() macro in the int340x processor_thermal
     driver (Shang XiaoJing)

   - Use get_cpu() instead of smp_processor_id() in the intel_powerclamp
     thermal driver to prevent it from crashing and remove unused
     accounting for IRQ wakes from it (Srinivas Pandruvada)

   - Consolidate priv->data_vault checks in int340x_thermal (Rafael
     Wysocki)

   - Check the policy first in cpufreq_cooling_register() (Xuewen Yan)

   - Drop redundant error message from da9062-thermal (zhaoxiao)

   - Drop of_match_ptr() from thermal_mmio (Jean Delvare)"

* tag 'thermal-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (55 commits)
  thermal: core: Increase maximum number of trip points
  thermal: int340x: processor_thermal: Use module_pci_driver() macro
  thermal: intel_powerclamp: Remove accounting for IRQ wakes
  thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
  thermal: int340x_thermal: Consolidate priv->data_vault checks
  thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register()
  thermal: Drop duplicate words from comments
  thermal: move from strlcpy() with unused retval to strscpy()
  thermal: da9062-thermal: Drop redundant error message
  thermal/drivers/thermal_mmio: Drop of_match_ptr()
  thermal: gov_user_space: Do not lock thermal zone mutex
  Revert "mlxsw: core: Add the hottest thermal zone detection"
  thermal/core: Fix lockdep_assert() warning
  thermal/core: Move the mutex inside the thermal_zone_device_update() function
  thermal/core: Move the thermal zone lock out of the governors
  thermal/governors: Group the thermal zone lock inside the throttle function
  thermal/core: Rework the monitoring a bit
  thermal/core: Rearm the monitoring only one time
  thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err()
  thermal/of: Remove old OF code
  ...
 2022-10-03 15:33:38 -07:00
Linus Torvalds
c79e6fa98c Power management updates for 6.1-rc1 
- Add isupport for Tiger Lake in no-HWP mode to intel_pstate (Doug
    Smythies).
 
  - Update the AMD P-state driver (Perry Yuan):
    * Fix wrong lowest perf fetch.
    * Map desired perf into pstate scope for powersave governor.
    * Update pstate frequency transition delay time.
    * Fix initial highest_perf value.
    * Clean up.
 
  - Move max CPU capacity to sugov_policy in the schedutil cpufreq
    governor (Lukasz Luba).
 
  - Add SM6115 to cpufreq-dt blocklist (Adam Skladowski).
 
  - Add support for Tegra239 and minor cleanups (Sumit Gupta, ye xingchen,
    and Yang Yingliang).
 
  - Add freq qos for qcom cpufreq driver and minor cleanups (Xuewen Yan,
    and Viresh Kumar).
 
  - Minor cleanups around functions called at module_init() (Xiu Jianfeng).
 
  - Use module_init and add module_exit for bmips driver (Zhang Jianhua).
 
  - Add AlderLake-N support to intel_idle (Zhang Rui).
 
  - Replace strlcpy() with unused retval with strscpy() in intel_idle
    (Wolfram Sang).
 
  - Remove redundant check from cpuidle_switch_governor() (Yu Liao).
 
  - Replace strlcpy() with unused retval with strscpy() in the powernv
    cpuidle driver (Wolfram Sang).
 
  - Drop duplicate word from a comment in the coupled cpuidle driver
    (Jason Wang).
 
  - Make rpm_resume() return -EINPROGRESS if RPM_NOWAIT is passed to it
    in the flags and the device is about to resume (Rafael Wysocki).
 
  - Add extra debugging statement for multiple active IRQs to system
    wakeup handling code (Mario Limonciello).
 
  - Replace strlcpy() with unused retval with strscpy() in the core
    system suspend support code (Wolfram Sang).
 
  - Update the intel_rapl power capping driver:
    * Use standard Energy Unit for SPR Dram RAPL domain (Zhang Rui).
    * Add support for RAPTORLAKE_S (Zhang Rui).
    * Fix UBSAN shift-out-of-bounds issue (Chao Qin).
 
  - Handle -EPROBE_DEFER when regulator is not probed on
    mtk-ci-devfreq.c (AngeloGioacchino Del Regno).
 
  - Fix message typo and use dev_err_probe() in rockchip-dfi.c
    (Christophe JAILLET).
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Merge tag 'pm-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add support for some new hardware, extend the existing hardware
  support, fix some issues and clean up code

  Specifics:

   - Add isupport for Tiger Lake in no-HWP mode to intel_pstate (Doug
     Smythies)

   - Update the AMD P-state driver (Perry Yuan):
      - Fix wrong lowest perf fetch
      - Map desired perf into pstate scope for powersave governor
      - Update pstate frequency transition delay time
      - Fix initial highest_perf value
      - Clean up

   - Move max CPU capacity to sugov_policy in the schedutil cpufreq
     governor (Lukasz Luba)

   - Add SM6115 to cpufreq-dt blocklist (Adam Skladowski)

   - Add support for Tegra239 and minor cleanups (Sumit Gupta, ye
     xingchen, and Yang Yingliang)

   - Add freq qos for qcom cpufreq driver and minor cleanups (Xuewen
     Yan, and Viresh Kumar)

   - Minor cleanups around functions called at module_init() (Xiu
     Jianfeng)

   - Use module_init and add module_exit for bmips driver (Zhang
     Jianhua)

   - Add AlderLake-N support to intel_idle (Zhang Rui)

   - Replace strlcpy() with unused retval with strscpy() in intel_idle
     (Wolfram Sang)

   - Remove redundant check from cpuidle_switch_governor() (Yu Liao)

   - Replace strlcpy() with unused retval with strscpy() in the powernv
     cpuidle driver (Wolfram Sang)

   - Drop duplicate word from a comment in the coupled cpuidle driver
     (Jason Wang)

   - Make rpm_resume() return -EINPROGRESS if RPM_NOWAIT is passed to it
     in the flags and the device is about to resume (Rafael Wysocki)

   - Add extra debugging statement for multiple active IRQs to system
     wakeup handling code (Mario Limonciello)

   - Replace strlcpy() with unused retval with strscpy() in the core
     system suspend support code (Wolfram Sang)

   - Update the intel_rapl power capping driver:
      - Use standard Energy Unit for SPR Dram RAPL domain (Zhang Rui).
      - Add support for RAPTORLAKE_S (Zhang Rui).
      - Fix UBSAN shift-out-of-bounds issue (Chao Qin)

   - Handle -EPROBE_DEFER when regulator is not probed on
     mtk-ci-devfreq.c (AngeloGioacchino Del Regno)

   - Fix message typo and use dev_err_probe() in rockchip-dfi.c
     (Christophe JAILLET)"

* tag 'pm-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (29 commits)
  cpufreq: qcom-cpufreq-hw: Add cpufreq qos for LMh
  cpufreq: Add __init annotation to module init funcs
  cpufreq: tegra194: change tegra239_cpufreq_soc to static
  PM / devfreq: rockchip-dfi: Fix an error message
  PM / devfreq: mtk-cci: Handle sram regulator probe deferral
  powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain
  PM: runtime: Return -EINPROGRESS from rpm_resume() in the RPM_NOWAIT case
  intel_idle: Add AlderLake-N support
  powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
  cpufreq: tegra194: Add support for Tegra239
  cpufreq: qcom-cpufreq-hw: Fix uninitialized throttled_freq warning
  cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode
  powercap: intel_rapl: Add support for RAPTORLAKE_S
  cpufreq: amd-pstate: Fix initial highest_perf value
  cpuidle: Remove redundant check in cpuidle_switch_governor()
  PM: wakeup: Add extra debugging statement for multiple active IRQs
  cpufreq: tegra194: Remove the unneeded result variable
  PM: suspend: move from strlcpy() with unused retval to strscpy()
  intel_idle: move from strlcpy() with unused retval to strscpy()
  cpuidle: powernv: move from strlcpy() with unused retval to strscpy()
  ...
 2022-10-03 13:26:47 -07:00
Linus Torvalds
9388076b4c ACPI updates for 6.1-rc1 
- Reimplement acpi_get_pci_dev() using the list of physical devices
    associated with the given ACPI device object (Rafael Wysocki).
 
  - Rename ACPI device object reference counting functions (Rafael
    Wysocki).
 
  - Rearrange ACPI device object initialization code (Rafael Wysocki).
 
  - Drop parent field from struct acpi_device (Rafael Wysocki).
 
  - Extend the the int3472-tps68470 driver to support multiple consumers
    of a single TPS68470 along with the requisite framework-level
    support (Daniel Scally).
 
  - Filter out non-memory resources in is_memory(), add a helper
    function to find all memory type resources of an ACPI device object
    and use that function in 3 places (Heikki Krogerus).
 
  - Add IRQ override quirks for Asus Vivobook K3402ZA/K3502ZA and ASUS
    model S5402ZA (Tamim Khan, Kellen Renshaw).
 
  - Fix acpi_dev_state_d0() kerneldoc (Sakari Ailus).
 
  - Fix up suspend-to-idle support on ASUS Rembrandt laptops (Mario
    Limonciello).
 
  - Clean up ACPI platform devices support code (Andy Shevchenko, John
    Garry).
 
  - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen).
 
  - Add support for multiple DMA windows with different offsets to the
    ACPI device enumeration code and use it on LoongArch (Jianmin Lv).
 
  - Clean up the ACPI LPSS (Intel SoC) driver (Andy Shevchenko).
 
  - Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable (Mario
    Limonciello).
 
  - Drop unused dev_fmt() and redundant 'HMAT' prefix from the HMAT
    parsing code (Liu Shixin).
 
  - Make ACPI FPDT parsing code avoid calling acpi_os_map_memory() on
    invalid physical addresses (Hans de Goede).
 
  - Silence missing-declarations warning related to Apple device
    properties management (Lukas Wunner).
 
  - Disable frequency invariance in the CPPC library if registers used
    by cppc_get_perf_ctrs() are accessed via PCC (Jeremy Linton).
 
  - Add ACPI disabled check to acpi_cpc_valid() (Perry Yuan).
 
  - Fix Tx acknowledge in the PCC address space handler (Huisong Li).
 
  - Use wait_for_completion_timeout() for PCC mailbox operations (Huisong
    Li).
 
  - Release resources on PCC address space setup failure path (Rafael
    Mendonca).
 
  - Remove unneeded result variables from APEI code (ye xingchen).
 
  - Print total number of records found during BERT log parsing (Dmitry
    Monakhov).
 
  - Drop support for 3 _OSI strings that should not be necessary any
    more and update documentation on custom _OSI strings so that adding
    new ones is not encouraged any more (Mario Limonciello).
 
  - Drop unneeded result variable from ec_write() (ye xingchen).
 
  - Remove the leftover struct acpi_ac_bl from the ACPI AC driver (Hanjun
    Guo).
 
  - Reorder symbols to get rid of a few forward declarations in the ACPI
    fan driver (Uwe Kleine-König).
 
  - Add Toshiba Satellite/Portege Z830 ACPI backlight quirk (Arvid
    Norlander).
 
  - Add ARM DMA-330 controller to the supported list in the ACPI AMBA
    driver (Vijayenthiran Subramaniam).
 
  - Drop references to non-functional 01.org/linux-acpi web site from
    MAINTAINERS and Kconfig help texts (Rafael Wysocki).
 
  - Replace strlcpy() with unused retval with strscpy() in the ACPI
    support code (Wolfram Sang).
 
  - Do not initialize ret in main() in the pfrut utility (Shi junming).
 
  - Drop useless ACPI DSDT override documentation (Rafael Wysocki).
 
  - Fix a few typos and wording mistakes in the ACPI device enumeration
    documentation (Jean Delvare).
 
  - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an
    integer value (Andy Shevchenko).
 
  - Use acpi_dev_uid_to_integer() in several places to unify _UID
    handling (Andy Shevchenko).
 
  - Drop unused pnpid32_to_pnpid() declaration from  PNP code (Gaosheng
    Cui).
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Merge tag 'acpi-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "ACPI and PNP updates for 6.1-rc1.

  These rearrange the ACPI device object initialization code (to get rid
  of a redundant parent pointer from struct acpi_device among other
  things), unify the _UID handling, drop support for some _OSI strings
  that should not be necessary any more, add new IDs to support more
  hardware and some more quirks, fix a few issues and clean up code all
  over.

  Specifics:

   - Reimplement acpi_get_pci_dev() using the list of physical devices
     associated with the given ACPI device object (Rafael Wysocki)

   - Rename ACPI device object reference counting functions (Rafael
     Wysocki)

   - Rearrange ACPI device object initialization code (Rafael Wysocki)

   - Drop parent field from struct acpi_device (Rafael Wysocki)

   - Extend the the int3472-tps68470 driver to support multiple
     consumers of a single TPS68470 along with the requisite
     framework-level support (Daniel Scally)

   - Filter out non-memory resources in is_memory(), add a helper
     function to find all memory type resources of an ACPI device object
     and use that function in 3 places (Heikki Krogerus)

   - Add IRQ override quirks for Asus Vivobook K3402ZA/K3502ZA and ASUS
     model S5402ZA (Tamim Khan, Kellen Renshaw)

   - Fix acpi_dev_state_d0() kerneldoc (Sakari Ailus)

   - Fix up suspend-to-idle support on ASUS Rembrandt laptops (Mario
     Limonciello)

   - Clean up ACPI platform devices support code (Andy Shevchenko, John
     Garry)

   - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen)

   - Add support for multiple DMA windows with different offsets to the
     ACPI device enumeration code and use it on LoongArch (Jianmin Lv)

   - Clean up the ACPI LPSS (Intel SoC) driver (Andy Shevchenko)

   - Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable (Mario
     Limonciello)

   - Drop unused dev_fmt() and redundant 'HMAT' prefix from the HMAT
     parsing code (Liu Shixin)

   - Make ACPI FPDT parsing code avoid calling acpi_os_map_memory() on
     invalid physical addresses (Hans de Goede)

   - Silence missing-declarations warning related to Apple device
     properties management (Lukas Wunner)

   - Disable frequency invariance in the CPPC library if registers used
     by cppc_get_perf_ctrs() are accessed via PCC (Jeremy Linton)

   - Add ACPI disabled check to acpi_cpc_valid() (Perry Yuan)

   - Fix Tx acknowledge in the PCC address space handler (Huisong Li)

   - Use wait_for_completion_timeout() for PCC mailbox operations
     (Huisong Li)

   - Release resources on PCC address space setup failure path (Rafael
     Mendonca)

   - Remove unneeded result variables from APEI code (ye xingchen)

   - Print total number of records found during BERT log parsing (Dmitry
     Monakhov)

   - Drop support for 3 _OSI strings that should not be necessary any
     more and update documentation on custom _OSI strings so that adding
     new ones is not encouraged any more (Mario Limonciello)

   - Drop unneeded result variable from ec_write() (ye xingchen)

   - Remove the leftover struct acpi_ac_bl from the ACPI AC driver
     (Hanjun Guo)

   - Reorder symbols to get rid of a few forward declarations in the
     ACPI fan driver (Uwe Kleine-König)

   - Add Toshiba Satellite/Portege Z830 ACPI backlight quirk (Arvid
     Norlander)

   - Add ARM DMA-330 controller to the supported list in the ACPI AMBA
     driver (Vijayenthiran Subramaniam)

   - Drop references to non-functional 01.org/linux-acpi web site from
     MAINTAINERS and Kconfig help texts (Rafael Wysocki)

   - Replace strlcpy() with unused retval with strscpy() in the ACPI
     support code (Wolfram Sang)

   - Do not initialize ret in main() in the pfrut utility (Shi junming)

   - Drop useless ACPI DSDT override documentation (Rafael Wysocki)

   - Fix a few typos and wording mistakes in the ACPI device enumeration
     documentation (Jean Delvare)

   - Introduce acpi_dev_uid_to_integer() to convert a _UID string into
     an integer value (Andy Shevchenko)

   - Use acpi_dev_uid_to_integer() in several places to unify _UID
     handling (Andy Shevchenko)

   - Drop unused pnpid32_to_pnpid() declaration from PNP code (Gaosheng
     Cui)"

* tag 'acpi-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (79 commits)
  ACPI: LPSS: Deduplicate skipping device in acpi_lpss_create_device()
  ACPI: LPSS: Replace loop with first entry retrieval
  ACPI: x86: s2idle: Add another ID to s2idle_dmi_table
  ACPI: x86: s2idle: Fix a NULL pointer dereference
  MAINTAINERS: Drop records pointing to 01.org/linux-acpi
  ACPI: Kconfig: Drop link to https://01.org/linux-acpi
  ACPI: docs: Drop useless DSDT override documentation
  ACPI: DPTF: Drop stale link from Kconfig help
  ACPI: x86: s2idle: Add a quirk for ASUSTeK COMPUTER INC. ROG Flow X13
  ACPI: x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7
  ACPI: x86: s2idle: Add a quirk for ASUS ROG Zephyrus G14
  ACPI: x86: s2idle: Add a quirk for ASUS TUF Gaming A17 FA707RE
  ACPI: x86: s2idle: Add module parameter to prefer Microsoft GUID
  ACPI: x86: s2idle: If a new AMD _HID is missing assume Rembrandt
  ACPI: x86: s2idle: Move _HID handling for AMD systems into structures
  platform/x86: int3472: Add board data for Surface Go2 IR camera
  platform/x86: int3472: Support multiple gpio lookups in board data
  platform/x86: int3472: Support multiple clock consumers
  ACPI: bus: Add iterator for dependent devices
  ACPI: scan: Add acpi_dev_get_next_consumer_dev()
  ...
 2022-10-03 13:19:53 -07:00
Rafael J. Wysocki
2e70ea7fb9 Merge branches 'thermal-intel' and 'thermal-drivers' 
Merge thermal control driver changes for 6.1-rc1:

 - Use module_pci_driver() macro in the int340x processor_thermal
   driver (Shang XiaoJing).

 - Use get_cpu() instead of smp_processor_id() in the intel_powerclamp
   thermal driver to prevent it from crashing and remove unused
   accounting for IRQ wakes from it (Srinivas Pandruvada).

 - Consolidate priv->data_vault checks in int340x_thermal (Rafael
   Wysocki).

 - Check the policy first in cpufreq_cooling_register() (Xuewen Yan).

 - Drop redundant error message from da9062-thermal (zhaoxiao).

 - Drop of_match_ptr() from thermal_mmio (Jean Delvare).

* thermal-intel:
  thermal: int340x: processor_thermal: Use module_pci_driver() macro
  thermal: intel_powerclamp: Remove accounting for IRQ wakes
  thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
  thermal: int340x_thermal: Consolidate priv->data_vault checks

* thermal-drivers:
  thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register()
  thermal: da9062-thermal: Drop redundant error message
  thermal/drivers/thermal_mmio: Drop of_match_ptr()
 2022-10-03 20:43:32 +02:00
Rafael J. Wysocki
a7ae50fc34 Merge branch 'thermal-core' 
Merge core thermal control changes for 6.1-rc1:

 - Increase maximum number of trip points in the thermal core (Sumeet
   Pawnikar).

 - Replace strlcpy() with unused retval with strscpy() in the core
   thermal control code (Wolfram Sang).

 - Do not lock thermal zone mutex in the user space governor (Rafael
   Wysocki)

 - Rework the device tree initialization, convert the drivers to the
   new API and remove the old OF code (Daniel Lezcano)

 - Fix return value to -ENODEV when searching for a specific thermal
   zone which does not exist (Daniel Lezcano)

 - Fix the return value inspection in of_thermal_zone_find() (Dan
   Carpenter)

 - Fix kernel panic when KASAN is enabled as it detects use after
   free when unregistering a thermal zone (Daniel Lezcano)

 - Move the set_trip ops inside the therma sysfs code (Daniel Lezcano)

 - Remove unnecessary error message as it is already showed in the
   underlying function (Jiapeng Chong)

 - Rework the monitoring path and move the locks upper in the call
   stack to fix some potentials race windows (Daniel Lezcano)

 - Fix lockdep_assert() warning introduced by the lock rework (Daniel
   Lezcano)

 - Revert the Mellanox 'hotter thermal zone' feature because it is
   already handled in the thermal framework core code (Daniel Lezcano)

* thermal-core: (47 commits)
  thermal: core: Increase maximum number of trip points
  thermal: move from strlcpy() with unused retval to strscpy()
  thermal: gov_user_space: Do not lock thermal zone mutex
  Revert "mlxsw: core: Add the hottest thermal zone detection"
  thermal/core: Fix lockdep_assert() warning
  thermal/core: Move the mutex inside the thermal_zone_device_update() function
  thermal/core: Move the thermal zone lock out of the governors
  thermal/governors: Group the thermal zone lock inside the throttle function
  thermal/core: Rework the monitoring a bit
  thermal/core: Rearm the monitoring only one time
  thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err()
  thermal/of: Remove old OF code
  thermal/core: Move set_trip_temp ops to the sysfs code
  thermal/drivers/samsung: Switch to new of thermal API
  regulator/drivers/max8976: Switch to new of thermal API
  Input: sun4i-ts - switch to new of thermal API
  iio/drivers/sun4i_gpadc: Switch to new of thermal API
  hwmon/drivers/core: Switch to new of thermal API
  hwmon: pm_bus: core: Switch to new of thermal API
  ata/drivers/ahci_imx: Switch to new of thermal API
  ...
 2022-10-03 20:38:43 +02:00
Rafael J. Wysocki
ac73ce394a Merge branches 'pm-cpuidle', 'pm-core', 'pm-sleep' and 'powercap' 
Merge cpuidle changes, PM core changes and power capping changes for
6.1-rc1:

 - Add AlderLake-N support to intel_idle (Zhang Rui).

 - Replace strlcpy() with unused retval with strscpy() in intel_idle
   (Wolfram Sang).

 - Remove redundant check from cpuidle_switch_governor() (Yu Liao).

 - Replace strlcpy() with unused retval with strscpy() in the powernv
   cpuidle driver (Wolfram Sang).

 - Drop duplicate word from a comment in the coupled cpuidle driver
   (Jason Wang).

 - Make rpm_resume() return -EINPROGRESS if RPM_NOWAIT is passed to it
   in the flags and the device is about to resume (Rafael Wysocki).

 - Add extra debugging statement for multiple active IRQs to system
   wakeup handling code (Mario Limonciello).

 - Replace strlcpy() with unused retval with strscpy() in the core
   system suspend support code (Wolfram Sang).

 - Update the intel_rapl power capping driver:
   * Use standard Energy Unit for SPR Dram RAPL domain (Zhang Rui).
   * Add support for RAPTORLAKE_S (Zhang Rui).
   * Fix UBSAN shift-out-of-bounds issue (Chao Qin).

* pm-cpuidle:
  intel_idle: Add AlderLake-N support
  cpuidle: Remove redundant check in cpuidle_switch_governor()
  intel_idle: move from strlcpy() with unused retval to strscpy()
  cpuidle: powernv: move from strlcpy() with unused retval to strscpy()
  cpuidle: coupled: Drop duplicate word from a comment

* pm-core:
  PM: runtime: Return -EINPROGRESS from rpm_resume() in the RPM_NOWAIT case

* pm-sleep:
  PM: wakeup: Add extra debugging statement for multiple active IRQs
  PM: suspend: move from strlcpy() with unused retval to strscpy()

* powercap:
  powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain
  powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
  powercap: intel_rapl: Add support for RAPTORLAKE_S
 2022-10-03 20:27:49 +02:00
Rafael J. Wysocki
0766fa2e8a Merge branch 'pm-cpufreq' 
Merge cpufreq changes for 6.1-rc1:

 - Add isupport for Tiger Lake in no-HWP mode to intel_pstate (Doug
   Smythies).

 - Update the AMD P-state driver (Perry Yuan):
   * Fix wrong lowest perf fetch.
   * Map desired perf into pstate scope for powersave governor.
   * Update pstate frequency transition delay time.
   * Fix initial highest_perf value.
   * Clean up.

 - Move max CPU capacity to sugov_policy in the schedutil cpufreq
   governor (Lukasz Luba).

 - Add SM6115 to cpufreq-dt blocklist (Adam Skladowski).

 - Add support for Tegra239 and minor cleanups (Sumit Gupta, ye xingchen,
   and Yang Yingliang).

 - Add freq qos for qcom cpufreq driver and minor cleanups (Xuewen Yan,
   and Viresh Kumar).

 - Minor cleanups around functions called at module_init() (Xiu Jianfeng).

 - Use module_init and add module_exit for bmips driver (Zhang Jianhua).

* pm-cpufreq:
  cpufreq: qcom-cpufreq-hw: Add cpufreq qos for LMh
  cpufreq: Add __init annotation to module init funcs
  cpufreq: tegra194: change tegra239_cpufreq_soc to static
  cpufreq: tegra194: Add support for Tegra239
  cpufreq: qcom-cpufreq-hw: Fix uninitialized throttled_freq warning
  cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode
  cpufreq: amd-pstate: Fix initial highest_perf value
  cpufreq: tegra194: Remove the unneeded result variable
  cpufreq: amd-pstate: update pstate frequency transition delay time
  cpufreq: amd_pstate: map desired perf into pstate scope for powersave governor
  cpufreq: amd_pstate: fix wrong lowest perf fetch
  cpufreq: amd-pstate: fix white-space
  cpufreq: amd-pstate: simplify cpudata pointer assignment
  cpufreq: bmips-cpufreq: Use module_init and add module_exit
  cpufreq: schedutil: Move max CPU capacity to sugov_policy
  cpufreq: Add SM6115 to cpufreq-dt-platdev blocklist
 2022-10-03 20:19:13 +02:00
Rafael J. Wysocki
c8efe77f23 Merge branch 'pnp' 
Merge a PNP changes for 6.1-rc1:

  - Drop unused pnpid32_to_pnpid() declaration from  PNP code (Gaosheng
    Cui).

* pnp:
  PNPBIOS: remove unused pnpid32_to_pnpid() declaration
 2022-10-03 20:16:28 +02:00
Rafael J. Wysocki
4aa497ca10 Merge branch 'acpi-uid' 
Merge ACPI _UID handling unification changes for 6.1-rc1:

 - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an
   integer value (Andy Shevchenko).

 - Use acpi_dev_uid_to_integer() in several places to unify _UID
   handling (Andy Shevchenko).

* acpi-uid:
  efi/dev-path-parser: Refactor _UID handling to use acpi_dev_uid_to_integer()
  spi: pxa2xx: Refactor _UID handling to use acpi_dev_uid_to_integer()
  perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: mlxbf: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: amd-mp2-plat: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: x86: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: LPSS: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer
 2022-10-03 20:09:22 +02:00
Rafael J. Wysocki
a7ece531b9 Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs' 
Merge miscellaneous ACPI material, ACPI tools changes and ACPI
documentation updates for 6.1-rc1:

 - Drop references to non-functional 01.org/linux-acpi web site from
   MAINTAINERS and Kconfig help texts (Rafael Wysocki).

 - Replace strlcpy() with unused retval with strscpy() in the ACPI
   support code (Wolfram Sang).

 - Do not initialize ret in main() in the pfrut utility (Shi junming).

 - Drop useless ACPI DSDT override documentation (Rafael Wysocki).

 - Fix a few typos and wording mistakes in the ACPI device enumeration
   documentation (Jean Delvare).

* acpi-misc:
  MAINTAINERS: Drop records pointing to 01.org/linux-acpi
  ACPI: Kconfig: Drop link to https://01.org/linux-acpi
  ACPI: DPTF: Drop stale link from Kconfig help
  ACPI: move from strlcpy() with unused retval to strscpy()

* acpi-tools:
  ACPI: tools: pfrut: Do not initialize ret in main()

* acpi-docs:
  ACPI: docs: Drop useless DSDT override documentation
  ACPI: docs: enumeration: Fix a few typos and wording mistakes
 2022-10-03 20:03:49 +02:00
Rafael J. Wysocki
7b4baa39de Merge branches 'acpi-ec', 'acpi-ac', 'acpi-fan', 'acpi-video' and 'acpi-amba' 
Merge EC, AC, fan and backlight driver changes and ACPI AMBA support
update for 6.1-rc1:

 - Drop unneeded result variable from ec_write() (ye xingchen).

 - Remove the leftover struct acpi_ac_bl from the ACPI AC driver (Hanjun
   Guo).

 - Reorder symbols to get rid of a few forward declarations in the ACPI
   fan driver (Uwe Kleine-König).

 - Add Toshiba Satellite/Portege Z830 ACPI backlight quirk (Arvid
   Norlander).

 - Add ARM DMA-330 controller to the supported list in the ACPI AMBA
   driver (Vijayenthiran Subramaniam).

* acpi-ec:
  ACPI: EC: Drop unneeded result variable from ec_write()

* acpi-ac:
  ACPI: AC: Remove the leftover struct acpi_ac_bl

* acpi-fan:
  ACPI: fan: Reorder symbols to get rid of a few forward declarations

* acpi-video:
  ACPI: video: Add Toshiba Satellite/Portege Z830 quirk

* acpi-amba:
  ACPI: AMBA: Add ARM DMA-330 controller to the supported list
 2022-10-03 19:59:47 +02:00
Rafael J. Wysocki
b1d03b7ec7 Merge branches 'acpi-cppc', 'acpi-pcc', 'acpi-apei' and 'acpi-osi' 
Merge new material related to CPPC, PCC, APEI and OSI strings handling
for 6.1-rc1:

 - Disable frequency invariance in the CPPC library if registers used
   by cppc_get_perf_ctrs() are accessed via PCC (Jeremy Linton).

 - Add ACPI disabled check to acpi_cpc_valid() (Perry Yuan).

 - Fix Tx acknowledge in the PCC address space handler (Huisong Li).

 - Use wait_for_completion_timeout() for PCC mailbox operations (Huisong
   Li).

 - Release resources on PCC address space setup failure path (Rafael
   Mendonca).

 - Remove unneeded result variables from APEI code (ye xingchen).

 - Print total number of records found during BERT log parsing (Dmitry
   Monakhov).

 - Drop support for 3 _OSI strings that should not be necessary any
   more and update documentation on custom _OSI strings so that adding
   new ones is not encouraged any more (Mario Limonciello).

* acpi-cppc:
  ACPI: CPPC: Disable FIE if registers in PCC regions
  ACPI: CPPC: Add ACPI disabled check to acpi_cpc_valid()

* acpi-pcc:
  ACPI: PCC: Fix Tx acknowledge in the PCC address space handler
  ACPI: PCC: replace wait_for_completion()
  ACPI: PCC: Release resources on address space setup failure path

* acpi-apei:
  ACPI: APEI: Remove unneeded result variables
  ACPI: APEI: Add BERT error log footer

* acpi-osi:
  ACPI: OSI: Update Documentation on custom _OSI strings
  ACPI: OSI: Remove Linux-HPI-Hybrid-Graphics _OSI string
  ACPI: OSI: Remove Linux-Lenovo-NV-HDMI-Audio _OSI string
  ACPI: OSI: Remove Linux-Dell-Video _OSI string
 2022-10-03 19:49:05 +02:00
Linus Torvalds
f3dfe925f9 There's not a huge amount of activity in the docs tree this time around, 
but a few significant changes even so:
 
 - A complete rewriting of the top-level index.rst file, which mostly
   reflects itself in a redone top page in the HTML-rendered docs.  The hope
   is that the new organization will be a friendlier starting point for
   both users and developers.
 
 - Some math-rendering improvements.
 
 - A coding-style.rst update on the use of BUG() and WARN()
 
 - A big maintainer-PHP guide update.
 
 - Some code-of-conduct updates
 
 - More Chinese translation work
 
 Plus the usual pile of typo fixes, corrections, and updates.
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Merge tag 'docs-6.1' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "There's not a huge amount of activity in the docs tree this time
  around, but a few significant changes even so:

   - A complete rewriting of the top-level index.rst file, which mostly
     reflects itself in a redone top page in the HTML-rendered docs. The
     hope is that the new organization will be a friendlier starting
     point for both users and developers.

   - Some math-rendering improvements.

   - A coding-style.rst update on the use of BUG() and WARN()

   - A big maintainer-PHP guide update.

   - Some code-of-conduct updates

   - More Chinese translation work

  Plus the usual pile of typo fixes, corrections, and updates"

* tag 'docs-6.1' of git://git.lwn.net/linux: (66 commits)
  checkpatch: warn on usage of VM_BUG_ON() and other BUG variants
  coding-style.rst: document BUG() and WARN() rules ("do not crash the kernel")
  Documentation: devres: add missing IO helper
  Documentation: devres: update IRQ helper
  Documentation/mm: modify page_referenced to folio_referenced
  Documentation/CoC: Reflect current CoC interpretation and practices
  docs/doc-guide: Add documentation on SPHINX_IMGMATH
  docs: process/5.Posting.rst: clarify use of Reported-by: tag
  docs, kprobes: Fix the wrong location of Kprobes
  docs: add a man-pages link to the front page
  docs: put atomic*.txt and memory-barriers.txt into the core-api book
  docs: move asm-annotations.rst into core-api
  docs: remove some index.rst cruft
  docs: reconfigure the HTML left column
  docs: Rewrite the front page
  docs: promote the title of process/index.rst
  Documentation: devres: add missing SPI helper
  Documentation: devres: add missing PINCTRL helpers
  docs: hugetlbpage.rst: fix a typo of hugepage size
  docs/zh_CN: Add new translation of admin-guide/bootconfig.rst
  ...
 2022-10-03 10:23:32 -07:00
Linus Torvalds
890f242084 RCU pull request for v6.1 
This pull request contains the following branches:
 
 doc.2022.08.31b: Documentation updates.  This is the first in a series
 	from an ongoing review of the RCU documentation.  "Why are people
 	thinking -that- about RCU?  Oh.  Because that is an entirely
 	reasonable interpretation of its documentation."
 
 fixes.2022.08.31b: Miscellaneous fixes.
 
 kvfree.2022.08.31b: Improved memory allocation and heuristics.
 
 nocb.2022.09.01a: Improve rcu_nocbs diagnostic output.
 
 poll.2022.08.31b: Add full-sized polled RCU grace period state values.
 	These are the same size as an rcu_head structure, which is double
 	that of the traditional unsigned long state values that may still
 	be obtained from et_state_synchronize_rcu().  The added size
 	avoids missing overlapping grace periods.  This benefit is that
 	call_rcu() can be replaced by polling, which can be attractive
 	in situations where RCU-protected data is aged out of memory.
 
 	Early in the series, the size of this state value is three
 	unsigned longs.  Later in the series, the synchronize_rcu() and
 	synchronize_rcu_expedited() fastpaths are reworked to permit
 	the full state to be represented by only two unsigned longs.
 	This reworking slows these two functions down in SMP kernels
 	running either on single-CPU systems or on systems with all but
 	one CPU offlined, but this should not be a significant problem.
 	And if it somehow becomes a problem in some yet-as-unforeseen
 	situations, three-value state values can be provided for only
 	those situations.
 
 	Finally, a pair of functions named same_state_synchronize_rcu()
 	and same_state_synchronize_rcu_full() allow grace-period state
 	values to be compared for equality.  This permits users to
 	maintain lists of data structures having the same state value,
 	removing the need for per-data-structure grace-period state
 	values, thus decreasing memory footprint.
 
 poll-srcu.2022.08.31b: Polled SRCU grace-period updates, including
 	adding tests to rcutorture and reducing the incidence of Tiny
 	SRCU grace-period-state counter wrap.
 
 tasks.2022.08.31b: Improve Tasks RCU diagnostics and quiescent-state
 	detection.
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Merge tag 'rcu.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU updates from Paul McKenney:

 - Documentation updates.

   This is the first in a series from an ongoing review of the RCU
   documentation. "Why are people thinking -that- about RCU? Oh. Because
   that is an entirely reasonable interpretation of its documentation."

 - Miscellaneous fixes.

 - Improved memory allocation and heuristics.

 - Improve rcu_nocbs diagnostic output.

 - Add full-sized polled RCU grace period state values.

   These are the same size as an rcu_head structure, which is double
   that of the traditional unsigned long state values that may still be
   obtained from et_state_synchronize_rcu(). The added size avoids
   missing overlapping grace periods. This benefit is that call_rcu()
   can be replaced by polling, which can be attractive in situations
   where RCU-protected data is aged out of memory.

   Early in the series, the size of this state value is three unsigned
   longs. Later in the series, the fastpaths in synchronize_rcu() and
   synchronize_rcu_expedited() are reworked to permit the full state to
   be represented by only two unsigned longs. This reworking slows these
   two functions down in SMP kernels running either on single-CPU
   systems or on systems with all but one CPU offlined, but this should
   not be a significant problem. And if it somehow becomes a problem in
   some yet-as-unforeseen situations, three-value state values can be
   provided for only those situations.

   Finally, a pair of functions named same_state_synchronize_rcu() and
   same_state_synchronize_rcu_full() allow grace-period state values to
   be compared for equality. This permits users to maintain lists of
   data structures having the same state value, removing the need for
   per-data-structure grace-period state values, thus decreasing memory
   footprint.

 - Polled SRCU grace-period updates, including adding tests to
   rcutorture and reducing the incidence of Tiny SRCU grace-period-state
   counter wrap.

 - Improve Tasks RCU diagnostics and quiescent-state detection.

* tag 'rcu.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (55 commits)
  rcutorture: Use the barrier operation specified by cur_ops
  rcu-tasks: Make RCU Tasks Trace check for userspace execution
  rcu-tasks: Ensure RCU Tasks Trace loops have quiescent states
  rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE()
  srcu: Make Tiny SRCU use full-sized grace-period counters
  srcu: Make Tiny SRCU poll_state_synchronize_srcu() more precise
  srcu: Add GP and maximum requested GP to Tiny SRCU rcutorture output
  rcutorture: Make "srcud" option also test polled grace-period API
  rcutorture: Limit read-side polling-API testing
  rcu: Add functions to compare grace-period state values
  rcutorture: Expand rcu_torture_write_types() first "if" statement
  rcutorture: Use 1-suffixed variable in rcu_torture_write_types() check
  rcu: Make synchronize_rcu() fastpath update only boot-CPU counters
  rcutorture: Adjust rcu_poll_need_2gp() for rcu_gp_oldstate field removal
  rcu: Remove ->rgos_polled field from rcu_gp_oldstate structure
  rcu: Make synchronize_rcu_expedited() fast path update .expedited_sequence
  rcu: Remove expedited grace-period fast-path forward-progress helper
  rcu: Make synchronize_rcu() fast path update ->gp_seq counters
  rcu-tasks: Remove grace-period fast-path rcu-tasks helper
  rcu: Set rcu_data structures' initial ->gpwrap value to true
  ...
 2022-10-03 10:11:11 -07:00
Linus Torvalds
b8fb65e1d3 LKMM pull request for v6.1 
This pull request includes several documentation updates.
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Merge tag 'lkmm.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull LKMM (Linux Kernel Memory Model) updates from Paul McKenney:
 "Several documentation updates"

* tag 'lkmm.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  tools/memory-model: Clarify LKMM's limitations in litmus-tests.txt
  docs/memory-barriers.txt: Fixup long lines
  docs/memory-barriers.txt: Fix confusing name of 'data dependency barrier'
 2022-10-03 10:06:15 -07:00
Linus Torvalds
dda0ba40da nolibc pull request for v6.1 
This pull request provides nolibc updates, most notably greatly improved
 testing.  These tests are located in tools/testing/selftests/nolibc.  The
 output of "make help" is as follows:
 
 	Supported targets under selftests/nolibc:
 	  all          call the "run" target below
 	  help         this help
 	  sysroot      create the nolibc sysroot here (uses $ARCH)
 	  nolibc-test  build the executable (uses $CC and $CROSS_COMPILE)
 	  initramfs    prepare the initramfs with nolibc-test
 	  defconfig    create a fresh new default config (uses $ARCH)
 	  kernel       (re)build the kernel with the initramfs (uses $ARCH)
 	  run          runs the kernel in QEMU after building it (uses $ARCH, $TEST)
 	  rerun        runs a previously prebuilt kernel in QEMU (uses $ARCH, $TEST)
 	  clean        clean the sysroot, initramfs, build and output files
 
 	The output file is "run.out". Test ranges may be passed using $TEST.
 
 	Currently using the following variables:
 	  ARCH          = x86
 	  CROSS_COMPILE =
 	  CC            = gcc
 	  OUTPUT        = /home/git/linux-rcu/tools/testing/selftests/nolibc/
 	  TEST          =
 	  QEMU_ARCH     = x86_64 [determined from $ARCH]
 	  IMAGE_NAME    = bzImage [determined from $ARCH]
 
 The output of a successful x86 "make run" is currently as follows,
 with kernel build output omitted:
 
 	$ make run
 	71 test(s) passed.
 	$
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Merge tag 'nolibc.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull nolibc updates from Paul McKenney:
 "Most notably greatly improved testing. These tests are located in
  tools/testing/selftests/nolibc. The output of "make help" is as
  follows:

    Supported targets under selftests/nolibc:
      all          call the "run" target below
      help         this help
      sysroot      create the nolibc sysroot here (uses $ARCH)
      nolibc-test  build the executable (uses $CC and $CROSS_COMPILE)
      initramfs    prepare the initramfs with nolibc-test
      defconfig    create a fresh new default config (uses $ARCH)
      kernel       (re)build the kernel with the initramfs (uses $ARCH)
      run          runs the kernel in QEMU after building it (uses $ARCH, $TEST)
      rerun        runs a previously prebuilt kernel in QEMU (uses $ARCH, $TEST)
      clean        clean the sysroot, initramfs, build and output files

    The output file is "run.out". Test ranges may be passed using $TEST.

    Currently using the following variables:
      ARCH          = x86
      CROSS_COMPILE =
      CC            = gcc
      OUTPUT        = /home/git/linux-rcu/tools/testing/selftests/nolibc/
      TEST          =
      QEMU_ARCH     = x86_64 [determined from $ARCH]
      IMAGE_NAME    = bzImage [determined from $ARCH]

  The output of a successful x86 "make run" is currently as follows,
  with kernel build output omitted:

    $ make run
    71 test(s) passed."

* tag 'nolibc.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  selftests/nolibc: Avoid generated files being committed
  selftests/nolibc: add a "help" target
  selftests/nolibc: "sysroot" target installs a local copy of the sysroot
  selftests/nolibc: add a "run" target to start the kernel in QEMU
  selftests/nolibc: add a "defconfig" target
  selftests/nolibc: add a "kernel" target to build the kernel with the initramfs
  selftests/nolibc: support glibc as well
  selftests/nolibc: condition some tests on /proc existence
  selftests/nolibc: recreate and populate /dev and /proc if missing
  selftests/nolibc: on x86, support exiting with isa-debug-exit
  selftests/nolibc: exit with poweroff on success when getpid() == 1
  selftests/nolibc: add a few tests for some libc functions
  selftests/nolibc: implement a few tests for various syscalls
  selftests/nolibc: support a test definition format
  selftests/nolibc: add basic infrastructure to ease creation of nolibc tests
  tools/nolibc: make sys_mmap() automatically use the right __NR_mmap definition
  tools/nolibc: fix build warning in sys_mmap() when my_syscall6 is not defined
  tools/nolibc: make argc 32-bit in riscv startup code
 2022-10-03 10:01:19 -07:00