LinuxKPI: Add some header pollution and dummy headers

required by recent drm-kmod to be succesfully compiled.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
Obtained from: OpenBSD

LinuxKPI: Add some header pollution and dummy headers

required by recent drm-kmod to be succesfully compiled.

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
Obtained from: OpenBSD (partially)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42798

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linuxkpi: Add `struct kset` support in <linux/kobject.h>

[Why]
The amdgpu DRM driver started to use it in Linux 5.18.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.free

linuxkpi: Add `struct kset` support in <linux/kobject.h>

[Why]
The amdgpu DRM driver started to use it in Linux 5.18.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D43020

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linuxkpi: Move `struct kobject` code to `linux_kobject.c`

[Why]
`linux_compat.c` is already too long. I will need to add `struct kset`
in a follow-up commit, so let's move the existing `struct kobje

linuxkpi: Move `struct kobject` code to `linux_kobject.c`

[Why]
`linux_compat.c` is already too long. I will need to add `struct kset`
in a follow-up commit, so let's move the existing `struct kobject` code
to its own file.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D43019

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

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

linuxkpi: Add `default_groups` field to `struct kobj_type`

We don't use it, but it is set by the DRM drivers.

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

linuxkpi: Add `default_groups` field to `struct kobj_type`

We don't use it, but it is set by the DRM drivers.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D39051

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linuxkpi: move kobject_create to .c file

kobject_create knows the size of struct kobject. Move it to
linux_compat.c so this knowledge is confined to the loadable module and
not the clients.

Sponsor

linuxkpi: move kobject_create to .c file

kobject_create knows the size of struct kobject. Move it to
linux_compat.c so this knowledge is confined to the loadable module and
not the clients.

Sponsored by: Netflix
Reviewed by: hselasky, emaste
Differential Revision: https://reviews.freebsd.org/D34767

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LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards

MFC after: 1 week
Reviewed by: bz, emaste, hselasky, manu
Differential Revision: https://reviews.freebsd.org/D33562

LinuxKPI: Implement default sysfs kobject attribute operations

Required by drm-kmod 5.7

MFC after: 1 week
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D33292

LinuxKPI: upstream a collection of drm-kmod conflicting changes

The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places wi

LinuxKPI: upstream a collection of drm-kmod conflicting changes

The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places with
the drm-kmod graphics work outside the base system.

In order to transition smoothly extract the conflicting bits.
This included "unaligned" accessor functions, sg_pcopy_from_buffer(),
IS_*() macros (to be further restricted in the future), power management
bits (possibly no longer conflicting with DRM), and other minor changes.

Obtained-from: bz_iwlwifi
Sponsored-by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: kib, hselasky, manu, bdragon (looked at earlier versions)
Differential Revision: https://reviews.freebsd.org/D26598

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linuxkpi whitespace cleanup

Reviewed by: hselasky, markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D14807

MFH @ r323558.

MFhead@r322870

Add some miscellaneous definitions to support the DRM drivers.

MFC after: 1 week

Merge ^/head r319973 through 321382.

Merge ^/head r320042 through r320397.

Avoid including list.h in LinuxKPI headers.

list.h includes a number of FreeBSD headers as a workaround for the
LIST_HEAD name collision. To reduce pollution, avoid including list.h
in commonly used

Avoid including list.h in LinuxKPI headers.

list.h includes a number of FreeBSD headers as a workaround for the
LIST_HEAD name collision. To reduce pollution, avoid including list.h
in commonly used headers when it is not explicitly needed.

Reviewed by: hselasky
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D11249

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MFH @r294567

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Merge ^/head r292951 through r293015.

Minor LinuxKPI code cleanup:
- Declare some static functions in linux_compat.c instead if inside
various header files.
- Prefix FreeBSD local functions in the LinuxKPI with "linux_" to
avoid symb

Minor LinuxKPI code cleanup:
- Declare some static functions in linux_compat.c instead if inside
various header files.
- Prefix FreeBSD local functions in the LinuxKPI with "linux_" to
avoid symbol name conflicts in the future and to make debugging
easier.
- Make the "struct kobj_ktype" declaractions constant to shave off a
few bytes from the data segment.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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Mfh r292839

Reduce memory consumption when allocating kobject strings in the
LinuxKPI. Compute string length before allocating memory instead of
using fixed size allocations. Make kobject_set_name_vargs() global

Reduce memory consumption when allocating kobject strings in the
LinuxKPI. Compute string length before allocating memory instead of
using fixed size allocations. Make kobject_set_name_vargs() global
instead of inline to save some bytes when compiling.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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Catch up with head (r291075).

Merge from head r290483

Make all the LinuxKPI include files compile standalone.

Sponsored by: Mellanox Technologies