sys: Remove $FreeBSD$: one-line bare tag

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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Mechanically convert cxgb(4) and cxgbe(4) to IfAPI

Reviewed by: np
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D38597

cxgb(4): Fix "set but not used [-Wunused-but-set-variable]" warnings.

MFC after: 1 week
Sponsored by: Chelsio Communications

Merge ^/head r358466 through r358677.

Remove conditional code for FreeBSD 8 and earlier frmo cxgb.

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Fix kernel LINT build after r299363.

Define shadowing macros the same way to avoid macro redefinition
compile error(s) for now.

Approved by: np @

MfH @r295202

Expect to see panics in routing code at least now.

Merge ^/head r294777 through r294960.

MFH

Sponsored by: The FreeBSD Foundation

Update and add various macros to the LinuxKPI and resolve a macro
redefinition issue in the cxgb driver.

MFC after: 1 week
Sponsored by: Mellanox Technologies
Reviewed by: np @

Merge sync of head

MFH: r278202,r278205-r278590

Sponsored by: The FreeBSD Foundation

Merge ^/head r278351 through r278498.

Merge from HEAD

Remove kdb_backtrace extern; get the definition for kdb_backtrace from
<sys/kdb.h> instead

Fix whitespace in WARN_ON macro definition

MFC after: 1 week
Reviewed by: np
Differential Revision: https:

Remove kdb_backtrace extern; get the definition for kdb_backtrace from
<sys/kdb.h> instead

Fix whitespace in WARN_ON macro definition

MFC after: 1 week
Reviewed by: np
Differential Revision: https://reviews.freebsd.org/D1799
Sponsored by: EMC / Isilon Storage Division

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Merge from head@274682

IFC @r271694

Sync to HEAD@r271160.

- Update the OFED Linux Emulation layer as a preparation for a
hardware driver update from Mellanox Technologies.
- Remove empty files from the OFED Linux Emulation layer.
- Fix compile warnings rela

- Update the OFED Linux Emulation layer as a preparation for a
hardware driver update from Mellanox Technologies.
- Remove empty files from the OFED Linux Emulation layer.
- Fix compile warnings related to printf() and the "%lld" and "%llx"
format specifiers.
- Add some missing 2-clause BSD copyrights.
- Add "Mellanox Technologies, Ltd." to list of copyright holders.
- Add some new compatibility files.
- Fix order of uninit in the mlx4ib module to avoid crash at unload
using the new module_exit_order() function.

MFC after: 1 week
Sponsored by: Mellanox Technologies

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Merge fresh head.

MFC @ r241285

IFC @ r242684

Sync from head