No, ACPICA does not have a WARN_ONCE. In some places, we implement something similar by marking a namespace node, but that's all. >-----Original Message----- >From: Matthew Garrett [mailto:mjg@xxxxxxxxxx] >Sent: Wednesday, May 19, 2010 9:27 AM >To: Bjorn Helgaas >Cc: linux-acpi@xxxxxxxxxxxxxxx; Moore, Robert; lenb@xxxxxxxxxx >Subject: Re: [PATCH 1/3] ACPI: Ignore the upper bits of SystemIO addresses > >On Wed, May 19, 2010 at 10:18:46AM -0600, Bjorn Helgaas wrote: > >> I think this is a good idea. But it makes me a little bit nervous >> to change addresses supplied by the firmware without any user-visible >> indication at all. Is it worth doing a WARN_ONCE() sort of thing >> when we truncate? > >That doesn't seem unreasonable, but do we have anything equivalent to >that in the acpica code right now? > >> I know you experimented quite a bit to confirm that Windows does this >> sort of masking. Do you have any notes about that experimentation >> that would be useful to add to the bugzilla? > >Sure. I'll do that. > >-- >Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html