[Bug 285007] Warning message about decoded bus range in acpi_pcib_acpi_attach doesn't seem to match code/comments
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Date: Fri, 28 Feb 2025 15:17:58 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285007
Mark Johnston <markj@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Open
CC| |imp@FreeBSD.org,
| |jhb@FreeBSD.org,
| |markj@FreeBSD.org
--- Comment #2 from Mark Johnston <markj@FreeBSD.org> ---
The check in question:
438 /*
439 * If there is a decoded bus range, assume the bus number is
440 * the first value in the range. Warn if _BBN doesn't match.
441 */
442 if (get_decoded_bus_range(sc, &start, &end)) {
443 if (sc->ap_bus != start) {
444 device_printf(dev,
445 "WARNING: BIOS configured bus number (%d)
is "
446 "not within decoded bus number range "
447 "(%ju - %ju).\n",
448 sc->ap_bus, (uintmax_t)start,
(uintmax_t)end);
449 device_printf(dev,
450 "Using range start (%ju) as bus number.\n",
451 (uintmax_t)start);
452 sc->ap_bus = start;
453 }
454 }
So really we're checking if the bus number is the first value in that range.
It's not clear to me which of the warning or the check is correct.
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