linuxkpi: Add `list_for_each_rcu()`

This is a variant of `list_for_each()` where the next item in the list
is read using `rcu_dereference()`.

This is used by the i915 DRM driver starting with Linux

linuxkpi: Add `list_for_each_rcu()`

This is a variant of `list_for_each()` where the next item in the list
is read using `rcu_dereference()`.

This is used by the i915 DRM driver starting with Linux 6.8.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D49375

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LinuxKPI: Rename linux_list_add to __list_add() in linux/list.h

to match Linux

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Differential Revision: https://revi

LinuxKPI: Rename linux_list_add to __list_add() in linux/list.h

to match Linux

Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu, bz
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42818

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linuxkpi: Add `list_for_each_prev_safe()` in <linux/list.h>

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

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

linuxkpi: Add `list_for_each_prev_safe()` in <linux/list.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/D43021

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

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

LinuxKPI: list.h add list_count_nodes()

Implement list_count_nodes() using a simple loop. This is needed by
an updated wireless driver.

Sponsored by: The FreeBSD Foundation
MFC after: 10 days
Revi

LinuxKPI: list.h add list_count_nodes()

Implement list_count_nodes() using a simple loop. This is needed by
an updated wireless driver.

Sponsored by: The FreeBSD Foundation
MFC after: 10 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D40757

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linuxkpi: Move definition of `struct list_head` to <linux/types.h>

This is the case on Linux.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D38537

linuxkpi: list_sort()'s callback now takes list arguments

This change breaks the API of `list_sort()`. `LINUXKPI_VERSION >= 51300`
is used to keep the header compatible with both versions of the
pro

linuxkpi: list_sort()'s callback now takes list arguments

This change breaks the API of `list_sort()`. `LINUXKPI_VERSION >= 51300`
is used to keep the header compatible with both versions of the
prototype.

Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D38082

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linuxkpi: Add list_rotate_to_front

This just calls list_move_tail.

Reviewed by: hselasky, bz
Sponsored by: Beckhoff Automation GmbH & Co. KG
MFC after: 2 weeks
Differential Revision: https://review

linuxkpi: Add list_rotate_to_front

This just calls list_move_tail.

Reviewed by: hselasky, bz
Sponsored by: Beckhoff Automation GmbH & Co. KG
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D34251

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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: Add compiler barriers to list_for_each_entry_lockless macro

so this list-traversal primitive may safely run concurrently with the
_rcu list-mutation primitives such as list_add_rcu() as lo

LinuxKPI: Add compiler barriers to list_for_each_entry_lockless macro

so this list-traversal primitive may safely run concurrently with the
_rcu list-mutation primitives such as list_add_rcu() as long as the
traversal is guarded by rcu_read_lock().

Do it by reusing the "list_for_each_entry_rcu" macro which does the same.
On Linux it implements some additional lockdep stuff which we skip.

Also move the macro to linux/rculist.h where it resides on Linux.

Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D30795

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linuxkpi: Add list_for_each_entry_lockless() macro

This is needed by the drm-kmod 5.7 update.

Approved by: hselasky (src)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D307

linuxkpi: Add list_for_each_entry_lockless() macro

This is needed by the drm-kmod 5.7 update.

Approved by: hselasky (src)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D30708

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linuxkpi: add ieee80211_node.h to headers to include before LIST_HEAD

ieee80211_node.h uses LIST_HEAD() which LinuxKPI redefines and this
can lead to problems (see comment there). Make sure the net

linuxkpi: add ieee80211_node.h to headers to include before LIST_HEAD

ieee80211_node.h uses LIST_HEAD() which LinuxKPI redefines and this
can lead to problems (see comment there). Make sure the net80211
header file is handled correctly by adding it to the list of files
to include before re-defining the macro.
Also add header files needed as dependencies.

Sponsored-by: The FreeBSD Foundation
MFC-after: 2 weeks
Reviewed-by: philip, hselasky
Differential Revision: https://reviews.freebsd.org/D29336

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Allow the list header file in the LinuxKPI to be used in standalone code.
Some style and spelling nits while at it.

MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking

compat: clean up empty lines in .c and .h files

Merge ^/head r358131 through r358178.

linuxkpi: Add list_is_first function

This function just test if the element is the first of the list.

Reviewed by: hselasky
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D237

linuxkpi: Add list_is_first function

This function just test if the element is the first of the list.

Reviewed by: hselasky
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23766

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MFHead@r345275

Implement list_for_each_entry_from_reverse() and
list_bulk_move_tail() in the LinuxKPI.

Submitted by: Johannes Lundberg <johalun0@gmail.com>
MFC after: 1 week
Sponsored by: Limelight Networks
Spo

Implement list_for_each_entry_from_reverse() and
list_bulk_move_tail() in the LinuxKPI.

Submitted by: Johannes Lundberg <johalun0@gmail.com>
MFC after: 1 week
Sponsored by: Limelight Networks
Sponsored by: Mellanox Technologies

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Make some list functions RCU safe in the LinuxKPI.
While at it rename hlist_add_after() into hlist_add_behind().

Submitted by: Johannes Lundberg <johalun0@gmail.com>
MFC after: 1 week
Sponsored by:

Make some list functions RCU safe in the LinuxKPI.
While at it rename hlist_add_after() into hlist_add_behind().

Submitted by: Johannes Lundberg <johalun0@gmail.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks

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linuxkpi whitespace cleanup

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

Implement list_safe_reset_next() function macro in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Ne

Implement list_safe_reset_next() function macro in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks

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Implement __list_del_entry() helper functions in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Netw

Implement __list_del_entry() helper functions in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks

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Merge ^/head r325505 through r325662.

Remove some not needed comments in the LinuxKPI. Use the Linux source tree
to lookup documentation for the functions implemented in the LinuxKPI
instead.

MFC after: 1 week
Sponsored by: Mellanox Tec

Remove some not needed comments in the LinuxKPI. Use the Linux source tree
to lookup documentation for the functions implemented in the LinuxKPI
instead.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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MFhead@r322870