[Skiboot-stable] [PATCH v2 1/5] libflash/ipmi-hiomap: Fix blocks count issue

[Stewart Smith]

"Andrew Jeffery" <andrew at aj.id.au> writes:
> On Mon, 8 Apr 2019, at 15:35, Vasant Hegde wrote:
>> We convert data size to block count and pass block count to BMC.
>> If data size is not block aligned then we endup sending block count
>> less than actual data. BMC will write partial data to flash memory.
>> 
>> Sample log :
>> [  594.388458416,7] HIOMAP: Marked flash dirty at 0x42010 for 8
>> [  594.398756487,7] HIOMAP: Flushed writes
>> [  594.409596439,7] HIOMAP: Marked flash dirty at 0x42018 for 3970
>> [  594.419897507,7] HIOMAP: Flushed writes
>> 
>> In this case HIOMAP sent data with block count=0 and hence BMC didn't
>> flush data to flash.
>> 
>> Lets fix this issue by adjusting block count before sending it to BMC.
>> 
>> Cc: Andrew Jeffery <andrew at aj.id.au>
>> Cc: skiboot-stable at lists.ozlabs.org
>> Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
>
> Reviewed-by: Andrew Jeffery <andrew at aj.id.au>
>
> Thanks for cleaning up my mess :)

Pretty amazing we missed having tests for this kind of thing for so
long.

Series merged to master as of 857f046d3ab00ec12dcb06ddabfed6bdfe00a819


-- 
Stewart Smith
OPAL Architect, IBM.