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PR/42937 CVS commit: src/sys/dev/acpi

The following reply was made to PR kern/42937; it has been noted by GNATS.

From: Jukka Ruohonen <>
Subject: PR/42937 CVS commit: src/sys/dev/acpi
Date: Fri, 2 Jul 2010 05:18:38 +0000

 Module Name:   src
 Committed By:  jruoho
 Date:          Fri Jul  2 05:18:38 UTC 2010
 Modified Files:
        src/sys/dev/acpi: acpi.c
 Log Message:
 Remove PNP0C01 and PNP0C02 from the list of ignored HIDs (and CIDs).
 Fixes PR kern/42937 from Ryo Onodera.
 As acpi_match_hid() matches also "compatible IDs" (CIDs), we must be careful
 when adding devices to this list. For example, the above PR revealed that
 the following is a fairly typical way to define the HPET device:
    Device (HPET)
                      Name (_HID, EisaId ("PNP0103"))
                      Name (_CID, EisaId ("PNP0C01"))
 Arguably this is a BIOS bug, given that PNP0C01 and PNP0C02 should uniquely
 identify a device (or a resource template) that has nothing to do with HPET.
 To generate a diff of this commit:
 cvs rdiff -u -r1.204 -r1.205 src/sys/dev/acpi/acpi.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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