LinuxKPI: Remove stray semicolons

MFC after: 1 week

(cherry picked from commit b4856b8e9d872ca6ee0c4ef43e7047693ef7645b)

LinuxKPI: Remove linux/sched.h include from linux/kernel.h header

This include prevents usage of any kernel.h helpers in sched.h and
all of dependencies. Linux does not have it too.
Fix building of

LinuxKPI: Remove linux/sched.h include from linux/kernel.h header

This include prevents usage of any kernel.h helpers in sched.h and
all of dependencies. Linux does not have it too.
Fix building of kernel and drm-kmod after than.

Sponsored by: Serenity CyberSecurity, LLC
MFC after: 1 week
Reviewed by: manu, bz
Differential Revision: https://reviews.freebsd.org/D45692

(cherry picked from commit 256eb8d5361143b7d436a195530e0eefe1450e6d)

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LinuxKPI: Move kstrto* functions to linux/kstrtox.h

from linux/kernel.h to match Linux and
allow direct linux/kstrtox.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Revie

LinuxKPI: Move kstrto* functions to linux/kstrtox.h

from linux/kernel.h to match Linux and
allow direct linux/kstrtox.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45454

(cherry picked from commit a97f3a9ec96a2de542326a158d1ab8e65ad4fe5f)

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LinuxKPI: Move linux/math.h content out of linux/kernel.h

To match Linux and allow direct linux/math.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differ

LinuxKPI: Move linux/math.h content out of linux/kernel.h

To match Linux and allow direct linux/math.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45452

(cherry picked from commit 588064e658d32f037854dd852b988728197a28de)

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LinuxKPI: Move linux/minmax.h content out of linux/kernel.h

To match Linux and allow direct linux/minmax.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Di

LinuxKPI: Move linux/minmax.h content out of linux/kernel.h

To match Linux and allow direct linux/minmax.h inclusion.

Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45449

(cherry picked from commit f79474c4e3eeb48c6acb0a9e3163195a50cef577)

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LinuxKPI: Add PTR_IF macro

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: emaste
MFC after: 1 week

(cherry picked from commit e0eeeca8b83a17aeebc4da525e813699bf3fabc2)

LinuxKPI: Import vanilla linux/overflow.h

It is dual-licensed (GPLv2 & MIT) and self-contained header file.
No need to reimplement it.

Sponsored by: Serenity CyberSecurity, LLC
Reviewed by: emaste

LinuxKPI: Import vanilla linux/overflow.h

It is dual-licensed (GPLv2 & MIT) and self-contained header file.
No need to reimplement it.

Sponsored by: Serenity CyberSecurity, LLC
Reviewed by: emaste
MFC after: 1 week

(cherry picked from commit 3208d4ad2b8320a24af4a8293f7fd3ef9c35caa6)

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LinuxKPI: Move [SU](8|16|32|64)_(MAX|MIN) defines to linux/limits.h

Some source files get them from linux/limits.h directly rather than from
linux/kernel.h.
While here replace Linux constant values

LinuxKPI: Move [SU](8|16|32|64)_(MAX|MIN) defines to linux/limits.h

Some source files get them from linux/limits.h directly rather than from
linux/kernel.h.
While here replace Linux constant values with sys/stdint.h provided ones.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: emaste
MFC after: 1 week

(cherry picked from commit 8cfd1dd821bd8102dd91971c6ac88a64e25057d1)

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LinuxKPI: Split linux/container_of.h off from linux/kernel.h

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Differential Revision: https://reviews.freebsd.or

LinuxKPI: Split linux/container_of.h off from linux/kernel.h

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42796

(cherry picked from commit fa862482fb0a8759984437d71221b17377625491)

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LinuxKPI: Add static_assert() macro

And move it along BUILD_BUG family in to
linux/build_bug.h to match Linux.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Dif

LinuxKPI: Add static_assert() macro

And move it along BUILD_BUG family in to
linux/build_bug.h to match Linux.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42800

(cherry picked from commit 31ef29091b0fbadefb4ccfb21e4b30ca7ddca3ed)

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kern: Globally define abs64

So we can use it in non-linuxkpi sources.

Reviewed by: emaste, mmel
Differential Revision: https://reviews.freebsd.org/D41767
Sponsored by: Beckhoff Automation GmbH & Co

kern: Globally define abs64

So we can use it in non-linuxkpi sources.

Reviewed by: emaste, mmel
Differential Revision: https://reviews.freebsd.org/D41767
Sponsored by: Beckhoff Automation GmbH & Co. KG

(cherry picked from commit 229c65a83fbe0ede8c617e35d8f8c14d5ebadc19)

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sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

LinuxKPI: Appease -Wunused-but-set-variable warnings from GCC.

- Mark assert dummy variables as __unused.

- Use a dummy (void) cast of the flags argument passed to
spin_unlock_irqrestore so it ge

LinuxKPI: Appease -Wunused-but-set-variable warnings from GCC.

- Mark assert dummy variables as __unused.

- Use a dummy (void) cast of the flags argument passed to
spin_unlock_irqrestore so it gets treated as used.

Reviewed by: manu, hselasky
Differential Revision: https://reviews.freebsd.org/D39349

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linuxkpi: Move `IS_ENABLED()` and friends to <linux/kconfig.h>

The header is included in <linux/xarray.h> like it is on Linux. Some DRM
code depends on this header "pollution".

Reviewed by: bz
Appr

linuxkpi: Move `IS_ENABLED()` and friends to <linux/kconfig.h>

The header is included in <linux/xarray.h> like it is on Linux. Some DRM
code depends on this header "pollution".

Reviewed by: bz
Approved by: bz
Differential Revision: https://reviews.freebsd.org/D38567

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linuxkpi: Add <linux/stdarg.h> + include it from <linux/string.h>

The <stdarg.h> header was moved in Linux 5.15.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.o

linuxkpi: Add <linux/stdarg.h> + include it from <linux/string.h>

The <stdarg.h> header was moved in Linux 5.15.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D38540

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LinuxKPI: add kstrtou32_from_user() and mac_pton()

While here:
- fix an argument of kstrtouint_from_user() to correct signedness.
- make kstrtou32() call kstrtouint() to avoid duplication (keep inli

LinuxKPI: add kstrtou32_from_user() and mac_pton()

While here:
- fix an argument of kstrtouint_from_user() to correct signedness.
- make kstrtou32() call kstrtouint() to avoid duplication (keep inline
function)

Add kstrtou32_from_user() based on other examples in the file
making it a copy of the now fixed kstrtouint_from_user().

Also add a rudimentarily hacked up version of mac_pton() which is
leanient accepting non-well-formed input but so far only with ':'
separators. It does not seem to obviously belong to any networking
header file so add it here.

Both new functions are needed for debugfs support for iwlwifi hence
coming together in one commit.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Commented on by: emaste
Differential Revision: https://reviews.freebsd.org/D37088

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linuxkpi: Define `typeof_member()` in <linux/kernel.h>

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D36964

linuxkpi: Add add_taint stub

Needed by drm-kmod.

Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D36112

linuxkpi: Add few more include in linux/kernel.h

Those are needed and also included in linux (via polution).

Reviewed by: bz
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: h

linuxkpi: Add few more include in linux/kernel.h

Those are needed and also included in linux (via polution).

Reviewed by: bz
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D36111

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LinuxKPI: move pm_message_t from kernel.h to pm.h

Move pm_message_t from kernel.h to pm.h and remove a private define
in usb.h as well as adjust the implementation in linux_usb.c.
This cleans up wha

LinuxKPI: move pm_message_t from kernel.h to pm.h

Move pm_message_t from kernel.h to pm.h and remove a private define
in usb.h as well as adjust the implementation in linux_usb.c.
This cleans up what I believe to be a historic shortcut and is
needed for future wireless driver updates.

Leave a note in UPDATING that drm-kmod users need to update to the
latest version before re-compiling a new kernel to avoid errors
(see PR).

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
PR: 264449 (drm-kmod port update, thanks wulf)
Obtained from: bz_git_iwlwifi (Dec 2020) (partly)
Reviewed by: hselasky, imp
Differential Revision: https://reviews.freebsd.org/D35276

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LinuxKPI: add ALIGN_DOWN()

Add ALIGN_DOWN as rounddown2() along ALIGN() which is implemented as
roundup2().

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: manu, hselasky (now w

LinuxKPI: add ALIGN_DOWN()

Add ALIGN_DOWN as rounddown2() along ALIGN() which is implemented as
roundup2().

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: manu, hselasky (now with less ())
Differential Revision: https://reviews.freebsd.org/D34844

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linuxkpi: Add kstrtouint_from_user

Like kstrtoint_from_user but for uint.
Needed by drm v5.10

MFC after: 1 month
Reviewed by: hselasky
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential R

linuxkpi: Add kstrtouint_from_user

Like kstrtoint_from_user but for uint.
Needed by drm v5.10

MFC after: 1 month
Reviewed by: hselasky
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D34642

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LinuxKPI: change DECLARE_FLEX_ARRAY()

DECLARE_FLEX_ARRAY can be used inside a structure. On FreeBSD due to
-Wgnu-variable-sized-type-not-at-end this yields an error. Use [0]
instead of [] to overc

LinuxKPI: change DECLARE_FLEX_ARRAY()

DECLARE_FLEX_ARRAY can be used inside a structure. On FreeBSD due to
-Wgnu-variable-sized-type-not-at-end this yields an error. Use [0]
instead of [] to overcome this.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D34350

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LinuxKPI: add kstrtoint_from_user() and DECLARE_FLEX_ARRAY()

Add an implementation of kstrtoint_from_user() based on the other
implementations and an attempt at DECLARE_FLEX_ARRAY() which works
for

LinuxKPI: add kstrtoint_from_user() and DECLARE_FLEX_ARRAY()

Add an implementation of kstrtoint_from_user() based on the other
implementations and an attempt at DECLARE_FLEX_ARRAY() which works
for the driver needing it.

MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D34231

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LinuxKPI: Use negative bit field size to trigger BUILD_BUG_ON_ZERO

compile time assertion on non-NULL pointers. Tests conducted show that
_Static_assert, negative array size method and current code

LinuxKPI: Use negative bit field size to trigger BUILD_BUG_ON_ZERO

compile time assertion on non-NULL pointers. Tests conducted show that
_Static_assert, negative array size method and current code does not
handle pointers well enough. Bit field method solves this problem.

This change is derrived from Linux implementation of BUILD_BUG_ON_ZERO.

MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D33674

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