lpt: check readiness with predefined macros

Replace spelled-out bits with pre-defined macros for those same bits.
No functional change.

PR: 170076
Reviewed by: imp

newbus: replace -1 in BUS_ADD_CHILD(...-1) with DEVICE_UNIT_ANY

Sponsored by: Netflix

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

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

ppbus/ppc: Remove unused devclass arguments to DRIVER_MODULE.

lpt: Mark ppbus in lptout unused.

It is used both in an assertion under INVARIANTS as well as in a
custom debug trace.

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

Merge ^/head r357662 through r357854.

Miscellaneous typo fixes

Submitted by: Gordon Bergling <gbergling_gmail.com>
Differential Revision: https://reviews.freebsd.org/D23453

Use callout_func_t instead of the deprecated timeout_t.

Reviewed by: kib, imp
Differential Revision: https://reviews.freebsd.org/D22752

Merge ^/head r325842 through r325998.

spdx: initial adoption of licensing ID tags.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensou

spdx: initial adoption of licensing ID tags.

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.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes: yes
Differential Revision: https://reviews.freebsd.org/D13133

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sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

IFC @230489 (pending review).

IFC to head to catch up the bhyve branch

Approved by: grehan@

- Use ppb_assert_locked() rather than using explicit mtx_assert call
- Make ppbus code agnostic in regard of INVARIANTS option

MFC after: 2 weeks

IFH@204581

MFC @199204

MFC 197772:
When the timeout backoff hits the maximum value, leave it capped at the
maximum value rather than setting it to the result of a boolean expression
that is always true.

Check pointer for NULL before dereferencing it, not after.

PR: 138387, 138388
Submitted by: Patroklos Argyroudis <argp@census-labs.com>
MFC after: 1 week

Correct a copy/paste bug in a comment. lptclose() checks once a second to
see if the ppc hardware has gone idle rather than four times a second.

When the timeout backoff hits the maximum value, leave it capped at the
maximum value rather than setting it to the result of a boolean expression
that is always true.

Submitted by: Joseph Kong
MFC

When the timeout backoff hits the maximum value, leave it capped at the
maximum value rather than setting it to the result of a boolean expression
that is always true.

Submitted by: Joseph Kong
MFC after: 1 month

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Merge from head up to r188941 (last revision before the USB stack switch)

Update the projects tree to a newer FreeBSD current.

Fix lptopen() and lptclose() to not trash the state of the HAVEBUS flag
in 'sc_state'. This allows the lpt_release_ppbus() calls in those two
routines to actually release the ppbus and thus fixes th

Fix lptopen() and lptclose() to not trash the state of the HAVEBUS flag
in 'sc_state'. This allows the lpt_release_ppbus() calls in those two
routines to actually release the ppbus and thus fixes the hangs noticed
with the lpt(4) driver since the recent ppbus changes. The old lpt(4)
driver didn't actually check the HAVEBUS flag in lpt_release_ppbus() which
is why these bugs weren't noticed before.

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Don't unlock the parent ppc lock until after releasing the ppbus.

Submitted by: csjp