sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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ddb: annotate some commands with DB_CMD_MEMSAFE

This is not completely exhaustive, but covers a large majority of
commands in the tree.

Reviewed by: markj
Sponsored by: Juniper Networks, Inc.
Spons

ddb: annotate some commands with DB_CMD_MEMSAFE

This is not completely exhaustive, but covers a large majority of
commands in the tree.

Reviewed by: markj
Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D35583

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

Merge ^/head r358269 through r358399.

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly mark

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718

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Add KERNEL_PANICKED macro for use in place of direct panicstr tests

MFHead@r345275

MFhead@r344996

Drop "All rights reserved" from my copyright statements.

Reviewed by: rgrimes
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19485

Use TD_IS_IDLETHREAD instead of unrolled version.

MFC after: 2 weeks

sys/kern: 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

sys/kern: 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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Merge ^/head r322398 through r322746.

MFhead@r322675

Fix a couple of comment typos

No functional change.

Submitted by: Anton Rang <anton.rang AT isilon.com>
Sponsored by: Dell EMC Isilon

Merge ^/head r294961 through r295350.

MfH @r295202

Expect to see panics in routing code at least now.

MFH

Sponsored by: The FreeBSD Foundation

Fix the logic in the ddb command 'show ktr /a'. Prior to r118269 it would
print until cncheckc returned a non -1, i.e. a character had been entered.
After this change it would print only if cncheckc

Fix the logic in the ddb command 'show ktr /a'. Prior to r118269 it would
print until cncheckc returned a non -1, i.e. a character had been entered.
After this change it would print only if cncheckc returned a character.
As this was before each call to db_mach_vtrace the normal outcome was
nothing was printed.

With this change 'show ktr /a' will now keep printing until the user stops
the command with a key press, or there is no more entries to print.

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MFH @r294567

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Merge ^/head r292936 through r292950.

- (Ab)use udivx for dividing the u_int pc_cpuid when implementing
CPU_ISSET(), CPU_SET etc. in sparc64 asm. This approach has the
benefit of not clobbering %y, allowing to revert r222827 and
pa

- (Ab)use udivx for dividing the u_int pc_cpuid when implementing
CPU_ISSET(), CPU_SET etc. in sparc64 asm. This approach has the
benefit of not clobbering %y, allowing to revert r222827 and
partially r222828.
- In r222828, CATR() already was changed to use the equivalent of
PCPU_GET(cpuid) instead of the MD module ID for KTR_CPU, so
belatedly also catch up with the C side of ktr(9). Originally,
in r203838 CATR() was moved away from directly reading the
module ID or equivalent as that became impractical with other
CPU types than USI/II supported. With r222828 in place, per-CPU
data generally is set up soon enough, though, that employing
PCPU things in ktr(9) also for use during early stages works.
- Unfortunately, an exception to the latter is the ktr(9) use
in pmap_bootstrap(), which actually is run so early that even
checking for bootverbose being set via the loader doesn't work.
Consequently, replace the ktr(9) use in pmap_bootstrap() with
OF_printf(9) and put it under #ifdef DIAGNOSTIC instead.

MFC after: 3 days

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Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation