commit 7c693f54 ("x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS")

adds the "ibrs " option  in
Documentation/admin-guide/kernel-parameters.txt but omits it to
Documentation/admin-guide/hw-vuln/spectre.rst, add it.
Signed-off-by: Lin Yujun <linyujun809@huawei.com>
Link: https://lore.kernel.org/r/20220830123614.23007-1-linyujun809@huawei.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Change occurrences of "it's" that are possessive to "its"
so that they don't read as "it is".

For f2fs.rst, reword one description for better clarity.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: linux-xfs@vger.kernel.org
Cc: Christian Brauner <brauner@kernel.org>
Cc: Seth Forshee <sforshee@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: "Christian Brauner (Microsoft)" <brauner@kernel.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Link: https://lore.kernel.org/r/20220901002828.25102-1-rdunlap@infradead.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Additionally to the "commit <sha1> upstream." variant, "[ Upstream
commit <sha1> ]" is used as well as alternative to refer to the upstream
commit hash.
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20220901184328.4075701-1-carnil@debian.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Update mediator information in the CoC interpretation document.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220901212319.56644-1-skhan@linuxfoundation.org
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Translte .../devicetree/kernel-api.rst into Chinese.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/35fd1b5801d7191e078937908008115f8949aac3.1662449105.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Translate .../devicetree/overlay-notes.rst into Chinese.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/b957580e448e2d0ab7917644c8f8f1614060b20a.1662449105.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Translate .../devicetree/dynamic-resolution-notes.rst into Chinese.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/d8b7c06fe8fdb58cb2ec6989e09f9999aca2d8d1.1662449105.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Translate .../devicetree/changesets.rst into Chinese.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/07d23cedda1e2cd8cf40d68059024d116f8d004e.1662449105.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Translate .../PCI/acpi-info.rst into Chinese.
Add PCI into .../zh_CN/index.rst.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/f07ba17ae9c6d728d6135ecc0577a932e9836fba.1662449105.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Fix spelling mistakes, "mesages" should be spelled "messages".
Signed-off-by: Rong Tao <rtoax@foxmail.com>
Link: https://lore.kernel.org/r/tencent_924BF0B25425E2D5673409D1CF604F682505@qq.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

I have deleted duplicate words like

to, guest, trace, when, we
Signed-off-by: Akhil Raj <lf32.dev@gmail.com>
Link: https://lore.kernel.org/r/20220829065239.4531-1-lf32.dev@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

The current section 'If something goes wrong' makes a number of suggestions
for debugging, bug hunting and reporting issues, which are quite briefly
described in that section.

However, the suggestions are also well covered in other kernel
documentation or sometimes simply outdated. Here, each suggestion in that
section is summarized, and then followed with its assessment, and the
derived action for each suggestion:

  - use MAINTAINERS and mailing list: covered in 'Reporting issues',
    summarized in the short guide, detailed in its further section.
    Reporting issues even provides some specific examples that guides
    readers well through the needed steps. Refer to 'Reporting issues'.

  - contact Linus Torvalds: probably outdated as currently described.
    nevertheless covered in 'Reporting issues'. Reporting issues points out
    to contact the relevant kernel maintainers first, and after some
    patience and failed attempts with those maintainers, contacting Linus
    Torvalds might be okay. Refer to 'Reporting issues'.

  - tell what kernel, how to duplicate, the setup, if the problem is new
    or old and when did you notice: covered in 'Reporting issues',
    especially in Step-by-step guide how to report issues to the kernel
    maintainers. Refer to 'Reporting issues'.

  - duplicate kernel bug reports exactly: covered in 'Reporting issues',
    especially in Write and send the report. Refer to 'Reporting issues'.

  - read 'Bug hunting': keep this reference. Refer to 'Bug hunting'.

  - compile the kernel with CONFIG_KALLSYMS: covered in 'Reporting issues',
    especially in Decode failure messages. Refer to 'Reporting issues'.

  - alternatively, use ksymoops: ksymoops at the mentioned URL seems not to
    be maintained anymore. It was released roughly once a year until
    version 2.4.11 in 2005, but has not seen a new release since then. The
    information in ./scripts/ksymoops/README is from 1999, and does not
    give more insight on its actual maintenance state either. Ksymoops is
    mentioned as system utility in changes.rst, but also not recommended
    there. Drop the explanation on using ksymoops.

  - alternatively, lookup dump manually with the EIP and nm to determine
    the function in which the kernel crashes: this method seems already a
    quite advanced and low-level debugging method. Even all the further
    references on bug hunting and debugging do not mention it. Drop this
    alternative method and limit mentioning methods explained in the other
    existing kernel documentation.

  - read 'Reporting issues': keep this reference.
    Refer to 'Reporting issues'.

  - use gdb for debugging: some specific details, e.g., edit
    arch/x86/Makefile, are probably outdated or limited to one (historic
    important) setup. Using gdb is covered in 'Bug hunting', 'Debugging
    kernel and modules via gdb' and 'Using kgdb, kdb and the kernel
    debugger internals'. Refer to those three documents.

Overall, it is sufficient to refer to reporting-issues.rst,
bug-hunting.rst, gdb-kernel-debugging.rst and kgdb.rst and this way cover
the existing suggestions.

'Reporting issues' is quite new and probably up to date. 'Bug hunting',
'Debugging kernel and modules via gdb' and 'Using kgdb, kdb and the kernel
debugger internals' might need some revisit and update, but they are
generally in an acceptable state for referring to them.

Replace the existing suggestions by reference to other existing kernel
documentation covering those suggestions---partly even nicely summarized
and then explained in greater detail.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220720041325.15693-3-lukas.bulwahn@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Running a.out user programs with the latest kernel release is a very rare
and uncommon use case nowadays. The support of a.out user programs is only
remaining for the alpha architecture and is not defined and activated in
the architecture's Kconfig (so even the activation of this support requires
to modify the Kconfig file and not just kernel build configuration).

The discussion on a.out support in 2019 (see Link) shows that the support
of a.out user programs is just remaining for a special corner case from
some (alpha architecture) users.

There is no need to point out and mention this special feature to the
general audience of kernel users. Delete the reference to this historic and
special feature.

Link: https://lore.kernel.org/all/CAHk-=wgt7M6yA5BJCJo0nF22WgPJnN8CvViL9CAJmd+S+Civ6w@mail.gmail.com/Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220720041325.15693-2-lukas.bulwahn@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Correct all uses of "it's" that are meant to be possessive "its".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220801025207.29971-1-rdunlap@infradead.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

I have removed repeated `the` inside the documentation
Signed-off-by: Akhil Raj <lf32.dev@gmail.com>
Link: https://lore.kernel.org/r/20220827145359.32599-1-lf32.dev@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

On some distros with coarse-grained packaging policy, dvipng is
installed along with latex.  In such cases, math rendering will
use imgmath by default.  It is possible to override the choice by
specifying the option string of "-D html_math_renderer='mathjax'"
to sphinx-build (Sphinx >= 1.8).

To provide developers an easier-to-use knob, add code for an env
variable "SPHINX_IMGMATH" which overrides the automatic choice
of math renderer for html docs.

    SPHINX_IMGMATH=yes : Load imgmath even if dvipng is not found
    SPHINX_IMGMATH=no  : Don't load imgmath (fall back to mathjax)
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/5a582b2b-d51c-a062-36b2-19479cf68fab@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Currently, math expressions using the "math::" directive or
the ":math:" role of Sphinx need the imgmath extension for proper
rendering in html and epub builds.
imgmath requires dvipng (and latex).
Otherwise, "make htmldocs" will complain of missing commands.

As a matter of fact, the mathjax extension is loaded by default since
Sphinx v1.8 and it is good enough for html docs without any dependency
on texlive packages.

Stop loading the imgmath extension for html docs unless requirements
for imgmath are met.

To find out whether required commands are available, add a helper
find_command(), which is a wrapper of shutil.which().

For epub docs, keep the same behavior of always loading imgmath.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/a6a877fc-dc93-2bda-a6d3-37001d99942a@gmail.com
[jc: Took out the writing of the math_renderer decision]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

* update to commit 163ba35f ("doc: use KCFLAGS instead of
  EXTRA_CFLAGS to pass flags from command line")
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/Ywli7VfhQVPHKiGw@bobwxc.mipcSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Add missing update for the documentation bit of some scheduler knob.
The knobs have been moved to /debug/sched/ location (with adjusted names).
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Tested-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20220816121907.841-1-lukasz.luba@arm.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

The English version of oops-tracing has been
refactored and has been translated into Chinese.
Let's remove them.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Acked-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/0d22733cea474b0a3784f8de6b4bc4841fbaba77.1661431365.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

The English version of IRQ has been refactored and
the new document (not called that anymore) has been
moved to core-api/irq, which has been translated
into Chinese. oops-tracing is pretty much the same,
let's remove them.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/7dc43c33ea7e2edf668070b203dce83b285f2cdb.1661431365.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Update to commit d1ce3500 Documentation: ("Add
io_ordering.rst to driver-api manual").
Move ../zh_CN/io_ordering.txt to ../zh_CN/driver-api/io_ordering.rst.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/c66f6d17c509c2c93f2afd30223c4bcf734f8317.1661431365.git.siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

The description of s_lastcheck_hi, s_first_error_time_hi, and
s_last_error_time_hi fields refer to themselves, while these means
referring to upper 8 bits (byte) of corresponding fields (s_lastcheck,
s_first_error_time, and s_last_error_time). Correct the mistake.
Signed-off-by: JunChao Sun <sunjunchao2870@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20220815125233.2040-1-sunjunchao2870@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

According to the implementation of xfs_trans_roll(), it calls
xfs_trans_reserve(), which reserves not only log space, but also
free disk blocks. In short, the "transaction stuff". So change
xfs_log_reserve() to xfs_trans_reserve().

Besides, fix several typo issues.
Signed-off-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20220823013653.203469-1-zhaomzhao@126.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

* Add back still referenced labels in submitting-patches.rst and
  email-clients.rst.
* Fix a typo.

Fixes: fdb34b18b959 ("docs/zh_CN: Update zh_CN/process/submitting-patches.rst to 5.19")
Fixes: d7aeaebb920f ("docs/zh_CN: Update zh_CN/process/email-clients.rst to 5.19")
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/Yv7i1tYMvK9J/NHj@bobwxc.mipcSigned-off-by: Jonathan Corbet <corbet@lwn.net>

* update to commit 9db370de ("docs: process: remove outdated
  submitting-drivers.rst")
* clean and reconstruct the whole translation
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/717baee07920d3cecf09197a10c973dd46089fcb.1659406843.git.bobwxc@email.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

* update to commit cbf4adfd ("Documentation: process: Update email
  client instructions for Thunderbird")
* clean the whole translation
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/3a19acf5929357f2702ac1e3538d1a9cc0085cc0.1659406843.git.bobwxc@email.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Tweak some wording to remove redundant information.
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-5-e3e6954affb6@linuxfoundation.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

With more developers beginning to use b4 and patatt, add a section to
the guide that talks about setting up and using patatt for PGP-signing
patch submissions.
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-4-e3e6954affb6@linuxfoundation.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Update ECC sections with the latest details, now that Yubikeys are able
to support ED25519 curves. Tweak a few links to smartcard devices to
reflect the latest URL changes.
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-3-e3e6954affb6@linuxfoundation.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Keyservers are largely a thing of the past with the replacement systems
like keys.openpgp.net specifically designed to offer no support for the
web of trust. Remove all sections that talk about keyservers and add a
small section with the link to kernel.org documentation that talks about
using the kernel.org public key repository.
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-2-e3e6954affb6@linuxfoundation.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

GnuPG does not use the word "master key" when referring to the subkey
marked with the "certification" capability. Our use of this term was not
only inconsistent, but also misleading, because in real life "master
keys" are able to open multiple locks made for different keys, while PGP
Certify key has no such capability.
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-1-e3e6954affb6@linuxfoundation.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Signed-off-by: Eric Lin <dslin1010@gmail.com>
Link: https://lore.kernel.org/r/20220811091516.2107908-1-dslin1010@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Update to commit 5513b411 ("Documentation: rename pinctl to
pin-control")
Move .../zh_CN/gpio.txt to .../zh_CN/driver-api/gpio/legacy.rst
Translate .../driver-api/index.rst into Chinese.
Translate .../driver-api/gpio/index.rst into Chinese.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20220817020830.799468-1-siyanteng@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.

Fixes powerpc allmodconfig build:

   In file included from include/linux/nodemask.h:97,
                    from include/linux/mmzone.h:17,
                    from include/linux/gfp.h:7,
                    from include/linux/radix-tree.h:12,
                    from include/linux/idr.h:15,
                    from include/linux/kernfs.h:12,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/pci.h:35,
                    from arch/powerpc/kernel/prom_init.c:24:
   include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
      25 |         add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
         |                                              ^~~~~~~~~~~~~~
         |                                              add_latent_entropy
   include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull vfs lseek fix from Al Viro:
 "Fix proc_reg_llseek() breakage. Always had been possible if somebody
  left NULL ->proc_lseek, became a practical issue now"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  take care to handle NULL ->proc_lseek()

Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.

Fixes: 868941b1 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Pull more xen updates from Juergen Gross:

 - fix the handling of the "persistent grants" feature negotiation
   between Xen blkfront and Xen blkback drivers

 - a cleanup of xen.config and adding xen.config to Xen section in
   MAINTAINERS

 - support HVMOP_set_evtchn_upcall_vector, which is more compliant to
   "normal" interrupt handling than the global callback used up to now

 - further small cleanups

* tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections
  xen: remove XEN_SCRUB_PAGES in xen.config
  xen/pciback: Fix comment typo
  xen/xenbus: fix return type in xenbus_file_read()
  xen-blkfront: Apply 'feature_persistent' parameter when connect
  xen-blkback: Apply 'feature_persistent' parameter when connect
  xen-blkback: fix persistent grants negotiation
  x86/xen: Add support for HVMOP_set_evtchn_upcall_vector

Merge tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tool updates from Arnaldo Carvalho de Melo:

 - 'perf c2c' now supports ARM64, adjust its output to cope with
   differences with what is in x86_64. Now go find false sharing on
   ARM64 (at least Neoverse) as well!

 - Refactor the JSON processing, making the output more compact and thus
   reducing the size of the resulting perf binary

 - Improvements for 'perf offcpu' profiling, including tracking child
   processes

 - Update Intel JSON metrics and events files for broadwellde,
   broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown,
   knightslanding, sapphirerapids, skylakex and snowridgex

 - Add 'perf stat' JSON output and a 'perf test' entry for it

 - Ignore memfd and anonymous mmap events if jitdump present

 - Refactor 'perf test' shell tests allowing subdirs

 - Fix an error handling path in 'parse_perf_probe_command()'

 - Fixes for the guest Intel PT tracing patchkit in the 1st batch of
   this merge window

 - Print debuginfod queries if -v option is used, to explain delays in
   processing when debuginfo servers are enabled to fetch DSOs with
   richer symbol tables

 - Improve error message for 'perf record -p not_existing_pid'

 - Fix openssl and libbpf feature detection

 - Add PMU pai_crypto event description for IBM z16 on 'perf list'

 - Fix typos and duplicated words on comments in various places

* tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits)
  perf test: Refactor shell tests allowing subdirs
  perf vendor events: Update events for snowridgex
  perf vendor events: Update events and metrics for skylakex
  perf vendor events: Update metrics for sapphirerapids
  perf vendor events: Update events for knightslanding
  perf vendor events: Update metrics for jaketown
  perf vendor events: Update metrics for ivytown
  perf vendor events: Update events and metrics for icelakex
  perf vendor events: Update events and metrics for haswellx
  perf vendor events: Update events and metrics for cascadelakex
  perf vendor events: Update events and metrics for broadwellx
  perf vendor events: Update metrics for broadwellde
  perf jevents: Fold strings optimization
  perf jevents: Compress the pmu_events_table
  perf metrics: Copy entire pmu_event in find metric
  perf pmu-events: Hide the pmu_events
  perf pmu-events: Don't assume pmu_event is an array
  perf pmu-events: Move test events/metrics to JSON
  perf test: Use full metric resolution
  perf pmu-events: Hide pmu_events_map
  ...