[coreboot-gerrit] Patch merged into coreboot/master: vbnv: Do not silently reset cache in read_vbnv

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit 165b6cf5c1192439838df83158c92313451f7777
Author: Furquan Shaikh <furquan at google.com>
Date:   Mon Jun 27 16:19:09 2016 -0700

    vbnv: Do not silently reset cache in read_vbnv
    
    Currently, read_vbnv performs a reset of the vbnv cache if it is not
    valid. However, this information is not passed up to the vboot layer,
    thus resulting in missed write-back of vbnv cache to storage if vboot
    does not update the cache itself.
    
    Update read_vbnv to return a value depending upon whether it wants a
    write-back to be performed when save is called.
    Return value:
    0 = No write-back required
    1 = Write-back of VBNV cache is required.
    
    Change-Id: I239939d5f9731d89a9d53fe662321b93fc1ab113
    Signed-off-by: Furquan Shaikh <furquan at google.com>
    Reviewed-on: https://review.coreboot.org/15457
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin <adurbin at chromium.org>


See https://review.coreboot.org/15457 for details.

-gerrit