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if_epair: Remove unneeded NULL check for the allocated ifnet

This follows the recent MFC [1]. No functional change intended.

This is a direct commit to stable/13.

1. f500e5c6c99b net: Remove unneeded NULL check for the allocated ifnet

capsicum-test: rights are propagated on sctp_peeloff(2)

As of commit 91a9e4e01dab ("capsicum: propagate rights on sctp_peeloff")
a capability is generated from sctp_peeloff(cap_fd,...).  Enable the
corresponding test code.

PR:             201052
Reviewed by:    oshogbo, tuexen
Sponsored by:   The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D47000

sctp: propagate cap rights on sctp_peeloff

PR:             201052
Reviewed by:    oshogbo, tuexen
Sponsored by:   The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46884

capsicum-test: include SCTP tests

HAVE_SCTP is #defined in syscalls.h, so move the #ifdef after the
inclusion of the header that #defines it.

Issue https://github.com/google/capsicum-test/issues/60 is open upstream
in case a slightly different version is needed for Linux.

Sponsored by:   The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46995

capsicum-test: skip SCTP tests if SCTP not available

Skip the test rather than failing if SCTP is not available (e.g., if
sctp.ko is not loaded).

Also submitted upstream as
https://github.com/google/capsicum-test/pull/61

Sponsored by:   The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46999

Revert "libkldelf: add a private library for kernel/kld-related ELF parsing"

This reverts commit 0a2cfd653e86ac41c4e6e32a449d133c0ee6d677.

Revert "libkldelf: add elf_lookup_symbol function"

This reverts commit 2c7d84795628cb9c7a266718b99b6bca68e0a135.

Revert "libkldelf: use warnx instead of printf"

This reverts commit 550ee2d03c5b88bc5d74b257ffcb3ed2c06a60bb.

manuals: Fix syntax of list width

Signed-off-by:  Graham Percival <gperciva at tarsnap.com>
Reviewed by:    mhorne
MFC after:      3 days
Sponsored by:   Tarsnap Backup Inc.
Pull Request:   https://github.com/freebsd/freebsd-src/pull/1455

manuals: Fix "missing end of block" errors

These were reported by `mandoc -T lint ...` as errors.

The rendered output (in ascii and html) is not affected by this commit.

Signed-off-by:  Graham Percival <gperciva at tarsnap.com>
Reviewed by:    mhorne, Alexander Ziaee <concussious.bugzilla at runbox.com>
MFC after:      3 days
Sponsored by:   Tarsnap Backup Inc.
Pull Request:   https://github.com/freebsd/freebsd-src/pull/1454

manuals: Misc syntax fixes

These were reported by `mandoc -T lint ...` as errors.

Signed-off-by:  Graham Percival <gperciva at tarsnap.com>
Reviewed by:    mhorne
MFC after:      3 days
Sponsored by:   Tarsnap Backup Inc.
Pull Request:   https://github.com/freebsd/freebsd-src/pull/1453

env: Check the status of stdout.

MFC after:      3 days
Sponsored by:   Klara, Inc.
Reviewed by:    markj
Differential Revision:  https://reviews.freebsd.org/D47009

env: Add an option to change the directory.

This mirrors the equivalent option in GNU coreutils env, but does not
add support for long options.

MFC after:      3 days
Relnotes:       yes
Sponsored by:   Klara, Inc.
Reviewed by:    0mp, bcr
Differential Revision:  https://reviews.freebsd.org/D47008

procctl(2): Clarify the ESRCH error code case

Approved by: kib
Differential Revision: https://reviews.freebsd.org/D47010

Vendor import of llvm-project branch release/19.x llvmorg-19.1.1-0-gd401987fe349, a.k.a. 19.1.1 release.

committers-*.dot: Fix typos

committers-src: Add myself (0mp)

Approved by:    bnovkov (mentor), christos (mentor), markj (mentor)
Differential Revision:  https://reviews.freebsd.org/D47007

vmstat -o: report objects backing posix shm segments

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

procstat vm: report posix shm segment mapping

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

sysctl vm.objects: report objects backing posix shm segments

Add the KVMO_FLAG_POSIXSHM flag.  Fill the path.

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

sys/user.h: report posix shm mappings

Add flag KVME_FLAG_POSIXSHM.  Fill kve_path with the path of the
segment.

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

posix shm: add shm_get_path(9)

to calculate the posix shm path from the vm_object backing shm segment.

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

posix shm: mark backing objects with SHM_POSIXSHM flag

and consistently store the pointer to shmfd into pager priv data space.

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

kinfo_{vmobject,vmentry}: move copy of pathes into the vnode handling scope

Reviewed by:    markj
Sponsored by:   The FreeBSD Foundation
MFC after:      1 week
Differential revision:  https://reviews.freebsd.org/D46970

if_enc(4): Make enc_add_hhooks() void

As for the consumer `enc_add_hhooks()`, `hhook_add_hook()` will never
fail for the given parameters. Meanwhile, to build the module if_enc(4),
at least option INET or INET6 is required, so no need for the error
EPFNOSUPPORT.

No functional change intended.

Reviewed by:    ae
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D46770

(cherry picked from commit 7643141e9314f1eac0d9ac08457410509e6829ad)
(cherry picked from commit d6374ee0517f8d991eafe022e2027dd1e64a2ad1)

khelp: Sprinkle const qualifiers where appropriate

No functional change intended.

MFC after:      1 week

(cherry picked from commit 89937323bddd41fd8b92430c3ece48d3e32c2c23)
(cherry picked from commit 54c79d3ae419c81a7e6bbc8c60f0959462bf0b4d)

hhook: Sprinkle const qualifiers where appropriate

No functional change intended.

MFC after:      1 week

(cherry picked from commit 941f8aceac1b6c16ca4d96b52e60ab437c4f9207)
(cherry picked from commit 18aa2a81c4651be2c7705f26f98175efa4f7a859)

net: Remove unneeded NULL check for the allocated ifnet

Change 4787572d0580 made if_alloc_domain() never fail, then also do the
wrappers if_alloc(), if_alloc_dev(), and if_gethandle().

No functional change intended.

Reviewed by:    kp, imp, glebius, stevek
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D45740

MFC note: This is only a partial MFC, as some drivers do not exist in
stable/13 branch. The if_epair(4) drifts too much from stable/14 so not
included in this MFC.

(cherry picked from commit aa3860851b9f6a6002d135b1cac7736e0995eedc)
(cherry picked from commit 6b1f530935c5f84ec65dad87b7c20c6b7a72a6d3)

Bump lld LINKER_FREEBSD_VERSION for reproducibility fix

The upstream fix to make lld output for our EFI loaders reproducible
again was committed in 54521a2ff93a. Bump lld's LINKER_FREEBSD_VERSION
to be able to check this in the EFI loader Makefile.

MFC after:      3 days

(cherry picked from commit f97c7fdc59d252cc8611968ffac541d4b8342b8b)

Merge commit b84d773fd004 from llvm git (by Fangrui Song):

  [Parallel] Revert sequential task changes

  https://reviews.llvm.org/D148728 introduced `bool Sequential` to unify
  `execute` and the old `spawn` without argument. However, sequential
  tasks might be executed by any worker thread (non-deterministic),
  leading to non-determinism output for ld.lld -z nocombreloc (see
  https://reviews.llvm.org/D133003).

  In addition, the extra member variables have overhead.
  This sequential task has only been used for lld parallel relocation
  scanning.

  This patch restores the behavior before https://reviews.llvm.org/D148728 .

  Fix #105958

  Pull Request: https://github.com/llvm/llvm-project/pull/109084

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