RE: [patch] ACPI: reduce code size, clean up, fix validator message

From: Brown, Len
Date: Thu Jun 22 2006 - 03:59:18 EST


Ingo,
Thanks for the quick reply.

An Andrew's advice a while back, Bob already got rid
of the allocate part -- it just isn't upstream yet.

Re: changing ACPICA code (sub-directories of drivers/acpi/) like this:

>- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
>+ spin_lock_irqsave(&acpi_gbl_gpe_lock, flags);

I can't do that without either
1. diverging between Linux and ACPICA
or
2. getting a license back from you to Intel such that Intel can
re-distrubute such a change under the Intel license on the file
and
inventing spin_lock_irqsave() on about 9 other operating systems.

#1 is all pain and no gain, unless the 244 net fewer bytes counts as
gain.
#2 wouldn't make sense either.

If this code were performance or size critical, I would still delete
acpi_os_acquire_lock from osl.c, but would inline it in aclinux.h.

thanks,
-Len
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