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According to "PCI Express Base Specification Revision 3.0" from

Browse Source 
November 10, 2010, section 7.9.1 an Extended Capability header
with value 0:0:0 represents the absence of Extended Capabilities.
This commit is contained in:
hannken 2016-07-12 09:45:34 +00:00
parent f0929e69c9
commit 2c5676121a
1 changed files with 3 additions and 3 deletions
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6
sys/dev/acpi/acpi_mcfg.c
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@ -1,4 +1,4 @@
/* $NetBSD: acpi_mcfg.c,v 1.3 2016/07/12 09:29:32 hannken Exp $ */
/* $NetBSD: acpi_mcfg.c,v 1.4 2016/07/12 09:45:34 hannken Exp $ */
/*-
* Copyright (C) 2015 NONAKA Kimihiro <nonaka@NetBSD.org>
@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: acpi_mcfg.c,v 1.3 2016/07/12 09:29:32 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: acpi_mcfg.c,v 1.4 2016/07/12 09:45:34 hannken Exp $");
#include <sys/param.h>
#include <sys/device.h>
@ -490,7 +490,7 @@ acpimcfg_device_probe(const struct pci_attach_args *pa)
/* Probe extended configuration space. */
if (((reg = pci_conf_read(pc, tag, PCI_CONF_SIZE)) == (pcireg_t)-1) ||
(alias = acpimcfg_ext_conf_is_aliased(pc, tag))) {
(reg == 0) || (alias = acpimcfg_ext_conf_is_aliased(pc, tag))) {
aprint_debug_dev(acpi_sc->sc_dev,
"MCFG: %03d:%02d:%d: invalid config space "
"(cfg[0x%03x]=0x%08x, alias=%s)\n", bus, dev, func,