Bjorn Helgaas wrote: > On Wednesday 26 March 2008 11:24:41 am Alexey Starikovskiy wrote: > >> Bjorn Helgaas wrote: >> >>> I'm curious about how this works. I disassembled the DSDT from >>> http://bugzilla.kernel.org/show_bug.cgi?id=4773 (I attached the disassembly >>> at http://bugzilla.kernel.org/attachment.cgi?id=15448&action=view), and >>> the _PRT contains "_SB" and "ISA" (no trailing underscores): >>> >>> Package (0x04) >>> { >>> 0x000DFFFF, >>> 0x00, >>> \_SB.PCI0.ISA.LNKA, >>> 0x00 >>> } >>> >>> But by the time we get to acpi_pci_irq_add_entry(), we've added the >>> underscores somewhere (see >>> http://bugzilla.kernel.org/attachment.cgi?id=15423&action=view): >>> >>> 0000:00:0d[A] -> \_SB_.PCI0.ISA_.LNKA >>> >>> I don't know where this happens, but it certainly confused me, and >>> it seems like it could lead to other bugs. >>> >>> >> ACPI is supposed to add trailing underscore for pad all names to 4 bytes. >> So ISA will be padded to ISA_. >> > > The questions are "where does this happen?" and "why does it not > apply to other things like asus_acpi.c?" > 1. drivers/acpi/namespace/nsutils.c:419 _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
