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 ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

sys: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Unsign some values related to allocation.

When allocating memory through malloc(9), we always expect the amount of
memory requested to be unsigned as a negative value would either stand for
an error

Unsign some values related to allocation.

When allocating memory through malloc(9), we always expect the amount of
memory requested to be unsigned as a negative value would either stand for
an error or an overflow.
Unsign some values, found when considering the use of mallocarray(9), to
avoid unnecessary casting. Also consider that indexes should be of
at least the same size/type as the upper limit they pretend to index.

MFC after: 3 weeks

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Merge ^/head r325999 through r326131.

sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for

sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

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.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Merge ^/head r305687 through r305890.

Renumber license clauses in sys/kern to avoid skipping #3

kern: Factor out function to convert hash flags to malloc(9) flags

Suggested by: jhb
Reviewed by: jhb, kib
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6184

kern: Add phashinit_flags(), which allows malloc(M_NOWAIT)

It will be used for the upcoming LRO hash table initialization.
And probably will be useful in other cases, when M_WAITOK can't
be used.

R

kern: Add phashinit_flags(), which allows malloc(M_NOWAIT)

It will be used for the upcoming LRO hash table initialization.
And probably will be useful in other cases, when M_WAITOK can't
be used.

Reviewed by: jhb, kib
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6138

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kernel: use our nitems() macro when it is available through param.h.

No functional change, only trivial cases are done in this sweep,

Discussed in: freebsd-current

MFH

Sponsored by: The FreeBSD Foundation

Make the KASSERT message in hash destroy more informative.
While the pointer might not be too helpful, the malloc type might at
least give a good hint about which hashtbl we are talking.

MFC after:

Make the KASSERT message in hash destroy more informative.
While the pointer might not be too helpful, the malloc type might at
least give a good hint about which hashtbl we are talking.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Reviewed by: gnn, emaste
Differential Revision: https://reviews.freebsd.org/D5802

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IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

IFC @230489 (pending review).

Convert panic()s to KASSERT()s. This is an optimisation for
hashdestroy() since in absence of INVARIANTS a compiler
will drop the entire for() cycle.

IFH@204581

Decompose the most lousy named file in sys/kern; kern_subr.c.

Although this file has historically been used as a dumping ground for
random functions, nowadays it only contains functions related to c

Decompose the most lousy named file in sys/kern; kern_subr.c.

Although this file has historically been used as a dumping ground for
random functions, nowadays it only contains functions related to copying
bits {from,to} userspace and hash table utility functions.

Behold, subr_uio.c and subr_hash.c.

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Decompose the most lousy named file in sys/kern; kern_subr.c.

Although this file has historically been used as a dumping ground for
random functions, nowadays it only contains functions related to c

Decompose the most lousy named file in sys/kern; kern_subr.c.

Although this file has historically been used as a dumping ground for
random functions, nowadays it only contains functions related to copying
bits {from,to} userspace and hash table utility functions.

Behold, subr_uio.c and subr_hash.c.

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