Make security document refs valid.

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Make `input` document refs valid including:
  - joystick
  - joystick-parport

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Make admin-guide document refs valid.

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Make driver-api document refs valid.

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add a simple script and build target to do a treewide grep for
references to files under Documentation, and report the non-existing
file in stderr. It tries to take into account punctuation not part of
the filename, and wildcards, but there are bound to be false positives
too. Mostly seems accurate though.

We've moved files around enough to make having this worthwhile.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Change to enable dochelp run from main make level to make it easier to
use it.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Enhance documentation help message to specify the default location for
the generated documents.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Update to include details on make O=dir support and other changes improve
test results output.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
[jc: Tweaked RST formatting slightly ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Commit 7aa7a036 (PM: docs: Delete the obsolete states.txt
document) forgot to update kernel-parameters.txt with a reference
to the new sleep-states.rst document and it still points to
states.txt that was dropped, so fix it now.

Fixes: 7aa7a036 (PM: docs: Delete the obsolete states.txt document)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add a kernel-api section on Math Functions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add kernel-doc notation for the gcd() function (so that it can be
added to the kernel-api documentation).

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add missing kernel-doc notation (function parameters) for several
div() functions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add missing kernel-doc notation for 2 div() functions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Fix <linux/log2.h> kernel-doc:
- Add kernel-doc notation to some functions.
- Fix kernel-doc notation in function parameters.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Way back in 2008 we didn't have "robust" in-kernel documentation system,
so the idea of putting something like the kernel driver statement in the
kernel tree wasn't even imagined.  But now that has changed, so add the
old document to the kernel source itself to allow for us to properly
reference it in one canonical place (as the LF wiki keeps moving things
around.)

This also will allow people to add their names to it, as I seem to have
lost the ability to do that by not knowing how to edit things on the
original document.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/binfmt_misc.txt moved to
Documentation/admin-guide/binfmt-misc.rst

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

It should say what that <integer> range is and what that integer value
means. I had to look at the code...

Signed-off-by: Borislav Petkov <bp@suse.de>
[jc: changed non-null to nonzero]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Relevant part is:
arch/x86/Kconfig: select HAVE_ARCH_KASAN  if X86_64 && SPARSEMEM_VMEMMAP

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

The existing message
	"Excess struct/union/enum/typedef member [...]"
made it sound like this would already be done, but the
code is never invoked for enums or typedefs (and really
can't be).

Add some code to the enum dumper to handle this there
instead.

While at it, also make the above message more accurate
by simply dumping the type that was passed in, and pass
the struct/union differentiation in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add the rest of the CRC library functions to kernel-api.

- try to clarify crc32() by adding '@' to a function parameter
- reorder kernel-api CRC functions to be less random
- add more CRC functions to kernel-api
- correct the function parameter names in several places

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Some urls is invalid. I find alternative urls.

Signed-off-by: stephen lu <lumotuwe@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Devils in the details are found only when the high level design is
refined and gets more detailed, and the appropriate phrase to use to
describe this is "problems are revealed", not "problems are
reviewed".

Reviews may reveal these problems, though ;-)

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

There shouldn't be a blank line at the beginning, if there is no
optional in-body "From" line.  There must be a blank line between
the body of the explanation and the beginning of the S-o-b lines.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

The default value was changed from 10 minutes to disabled in commit
a4199f5e.

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Add <linux/bitmap.h> to kernel-api Bitmap Operations section.
Fix kernel-doc nitpicks in <linux/bitmap.h>.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

In the kernel-api chapter, the section for Data Types only
contains "Doubly Linked Lists" and all of the function interfaces
for list management.  There are no other data types in this section,
so collapse this section into "List Management Functions".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Fix little inconsistencies in Documentation: make case and spacing
match surrounding text.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Pull DeviceTree fixes from Rob Herring:

 - fix build for !OF providing empty of_find_device_by_node

 - fix Abracon vendor prefix

 - sync dtx_diff include paths (again)

 - a stm32h7 clock binding doc fix

* tag 'devicetree-fixes-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: clk: stm32h7: fix clock-cell size
  scripts/dtc: dtx_diff - 2nd update of include dts paths to match build
  dt-bindings: fix vendor prefix for Abracon
  of: provide inline helper for of_find_device_by_node

Pull x86 fixes from Ingo Molnar:
 "Another round of CR3/PCID related fixes (I think this addresses all
  but one of the known problems with PCID support), an objtool fix plus
  a Clang fix that (finally) solves all Clang quirks to build a bootable
  x86 kernel as-is"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Fix inline asm call constraints for Clang
  objtool: Handle another GCC stack pointer adjustment bug
  x86/mm/32: Load a sane CR3 before cpu_init() on secondary CPUs
  x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
  x86/mm/64: Stop using CR3.PCID == 0 in ASID-aware code
  x86/mm: Factor out CR3-building code

Pull timer fix from Ingo Molnar:
 "A clocksource driver section mismatch fix"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/integrator: Fix section mismatch warning

Pull irq fixes from Ingo Molnar:
 "Three irqchip driver fixes, and an affinity mask helper function bug
  fix affecting x86"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "genirq: Restrict effective affinity to interrupts actually using it"
  irqchip.mips-gic: Fix shared interrupt mask writes
  irqchip/gic-v4: Fix building with ancient gcc
  irqchip/gic-v3: Iterate over possible CPUs by for_each_possible_cpu()

Pull address-limit checking fixes from Ingo Molnar:
 "This fixes a number of bugs in the address-limit (USER_DS) checks that
  got introduced in the merge window, (mostly) affecting the ARM and
  ARM64 platforms"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  arm64/syscalls: Move address limit check in loop
  arm/syscalls: Optimize address limit check
  Revert "arm/syscalls: Check address limit on user-mode return"
  syscalls: Use CHECK_DATA_CORRUPTION for addr_limit_user_check

Pull misc security layer update from James Morris:
 "This is the remaining 'general' change in the security tree for v4.14,
  following the direct merging of SELinux (+ TOMOYO), AppArmor, and
  seccomp.

  That's everything now for the security tree except IMA, which will
  follow shortly (I've been traveling for the past week with patchy
  internet)"

* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  security: fix description of values returned by cap_inode_need_killpriv

Pull TPM updates from James Morris:
 "Here are the TPM updates from Jarkko for v4.14, which I've placed in
  their own branch (next-tpm). I ended up cherry-picking them as other
  changes had been made in Jarkko's branch after he sent me his original
  pull request.

  I plan on maintaining a separate branch for TPM (and other security
  subsystems) from now on.

  From Jarkko: 'Not much this time except a few fixes'"

* 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  tpm: ibmvtpm: simplify crq initialization and document crq format
  tpm: replace msleep() with  usleep_range() in TPM 1.2/2.0 generic drivers
  Documentation: tpm: add powered-while-suspended binding documentation
  tpm: tpm_crb: constify acpi_device_id.
  tpm: vtpm: constify vio_device_id

The crq is passed in registers and is the same on BE and LE hosts.
However, current implementation allocates a structure on-stack to
represent the crq, initializes the members swapping them to BE, and
loads the structure swapping it from BE. This is pointless and causes
GCC warnings about ununitialized members. Get rid of the structure and
the warnings.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

The patch simply replaces all msleep function calls with usleep_range calls
in the generic drivers.

Tested with an Infineon TPM 1.2, using the generic tpm-tis module, for a
thousand PCR extends, we see results going from 1m57s unpatched to 40s
with the new patch. We obtain similar results when using the original and
patched tpm_infineon driver, which is also part of the patch.
Similarly with a STM TPM 2.0, using the CRB driver, it takes about 20ms per
extend unpatched and around 7ms with the new patch.

Note that the PCR consistency is untouched with this patch, each TPM has
been tested with 10 million extends and the aggregated PCR value is
continuously verified to be correct.

As an extension of this work, this could potentially and easily be applied
to other vendor's drivers. Still, these changes are not included in the
proposed patch as they are untested.

Signed-off-by: Hamza Attak <hamza@hpe.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

Add a new powered-while-suspended property to control the behavior of the
TPM suspend/resume.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

acpi_device_id are not supposed to change at runtime. All functions
working with acpi_device_id provided by <acpi/acpi_bus.h> work with
const acpi_device_id. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   4198	    608	      0	   4806	   12c6	drivers/char/tpm/tpm_crb.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   4262	    520	      0	   4782	   12ae	drivers/char/tpm/tpm_crb.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

vio_device_id are not supposed to change at runtime. All functions
working with vio_device_id provided by <asm/vio.h> work with
const vio_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>