proc: Remove kernel stack swapping support, part 7

Remove some uses of PHOLD which were there only to prevent the process'
threads from being swapped out.

Tested by: pho
Reviewed by: imp, kib
Diffe

proc: Remove kernel stack swapping support, part 7

Remove some uses of PHOLD which were there only to prevent the process'
threads from being swapped out.

Tested by: pho
Reviewed by: imp, kib
Differential Revision: https://reviews.freebsd.org/D46118

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firmware: unbreak armv7

Use proper format specifiers (with casts) and don't redefine flags.

Fixes: c7b1e980ae16
Sponsored by: Netflix

firmware: Allow binary files to be loaded by /boot/loader

Files loaded "-t firmware" (or module_type="firmware"). They are
registered with the firmware system using the full path to the file.
There

firmware: Allow binary files to be loaded by /boot/loader

Files loaded "-t firmware" (or module_type="firmware"). They are
registered with the firmware system using the full path to the file.
There's only one firmware per file, and it is the entire file. We do an
extra firmware_get() on any firmware we find here to prevent them from
ever being unloaded (we can't handle that case sanely).

Sponsored by: Netflix
Reviewed by: tsoome, jhb
Differential Revision: https://reviews.freebsd.org/D43522

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firmware: load binary firmware files

When we can't find a .ko module to satisfy the firmware request, try
harder by looking for a file to read in directly. We compose this file's
name by appending t

firmware: load binary firmware files

When we can't find a .ko module to satisfy the firmware request, try
harder by looking for a file to read in directly. We compose this file's
name by appending the imagename parameter to the firmware path
(currently hard-wired to be /boot/firmware, future plans are for a
path). Allow this file to be unloaded when firmware_put() releases the
last reference, but we don't need to do the indirection and dance we
need to do when unloading the .ko that will unregister the firmware.

Sponsored by: Netflix
Reviewed by: manu, jhb
Differential Revision: https://reviews.freebsd.org/D43555

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subr_firmware: Sort includes

Sponsored by: Netflix

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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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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subr_firmware.c::unloadentry(): remote write-only variable

The function ignores result returned by linker_release_module().
The FW_UNLOAD flag on the file is cleared, so even on error it would
not b

subr_firmware.c::unloadentry(): remote write-only variable

The function ignores result returned by linker_release_module().
The FW_UNLOAD flag on the file is cleared, so even on error it would
not be tried again.

Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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firmware(9): extend firmware_get() by a "no warn" flag.

With the upcoming usage from LinuxKPI but also from drivers
ported natively we are seeing more probing of various
firmware (names).

Add the a

firmware(9): extend firmware_get() by a "no warn" flag.

With the upcoming usage from LinuxKPI but also from drivers
ported natively we are seeing more probing of various
firmware (names).

Add the ability to firmware(9) to silence the
"firmware image loading/registering errors" by adding a new
firmware_get_flags() functions extending firmware_get() and
taking a flags argument as firmware_put() already does.

Requested-by: zeising (for future LinuxKPI/DRM)
Sponsored-by: The FreeBSD Foundation
Sponsored-by: Rubicon Communications, LLC ("Netgate")
MFC after: 3 days
Reviewed-by: markj
Differential Revision: https://reviews.freebsd.org/D27413

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Fix a panic when unloading firmware

LIST_FOREACH_SAFE() is not safe in the presence
of other threads removing list entries when a
mutex is released.

This is not in the critical path, so just restar

Fix a panic when unloading firmware

LIST_FOREACH_SAFE() is not safe in the presence
of other threads removing list entries when a
mutex is released.

This is not in the critical path, so just restart
the scan each time we drop the lock, rather than
using a marker.

Reviewed by: jhb, markj
Sponsored by: Netflix

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Remove the FIRMWARE_MAX limit.

The firmware module arbitrarily limits us to at most 50 images. It is
possible to hit this limit on platforms that preload many firmware
images, or link all of the fi

Remove the FIRMWARE_MAX limit.

The firmware module arbitrarily limits us to at most 50 images. It is
possible to hit this limit on platforms that preload many firmware
images, or link all of the firmware images for a set of devices into the
kernel.

Convert the table into a linked list, removing the limit.

Reported by: Steve Wheeler
Reviewed by: rpokala
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC (Netgate)
Differential Revision: https://reviews.freebsd.org/D25161

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Factor out check for mounted root file system.

Differential Revision: https://reviews.freebsd.org/D22571
PR: 241639
MFC after: 1 week
Sponsored by: Mellanox Technologies

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 r308227 through r308490.

Fix improper use of "its".

Sponsored by: Dell EMC Isilon

Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285341 through r285792.

Create a dedicated function for ensuring that cdir and rdir are populated.

Previously several places were doing it on its own, partially
incorrectly (e.g. without the filedesc locked) or even active

Create a dedicated function for ensuring that cdir and rdir are populated.

Previously several places were doing it on its own, partially
incorrectly (e.g. without the filedesc locked) or even actively harmful
by populating jdir or assigning rootvnode without vrefing it.

Reviewed by: kib

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Sync from head

Merge head r236710 through r238467.

IFC @238412.

IFC @ r238370

Correct sizeof usage

Obtained from: DragonFly