[coreboot-gerrit] Patch merged into coreboot/master: ACPI: Add hack to avoid IASL warning when reading back registers

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit d890b45520a4b2af2ae2b15096b5897ed7464fcb
Author: Martin Roth <martinroth at google.com>
Date:   Thu Dec 10 08:04:44 2015 -0700

    ACPI: Add hack to avoid IASL warning when reading back registers
    
    Upcoming versions of IASL give a warning about unused methods.  This
    adds an operation after the read to use the local variable and avoid
    the warning.
    
    The warning can be completely disabled on the command line, but as it
    can find real issues, my preference is to not do that.
    
    Fixes warnings:
    dsdt.aml 640: 		           Store (CTMP, Local0)
    Warning  3144 - Method Local is set but never used ^  (Local0)
    
    Change-Id: If55bb8e03abb8861e1f2f08a8bcb1be8c9783afe
    Signed-off-by: Martin Roth <martinroth at google.com>
    Reviewed-on: https://review.coreboot.org/12704
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer <stefan.reinauer at coreboot.org>


See https://review.coreboot.org/12704 for details.

-gerrit