tree 5f6fe3807334f31db85c066d9a4ad2f47cb88b05
parent 638a405fb52cfb2e7f559e869dd0291420b9e84d
author Tyrel Datwyler <tyreld@linux.vnet.ibm.com> 1376544227 -0700
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1377578712 +1000

powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header

The work area buffer returned by the ibm,update-properties rtas call contains
20 bytes of header information prior to the property value descriptor data.
Currently update_dt_node tries to advance over this header using sizeof(upwa).
The update_props_workarea struct contains 20 bytes worth of fields, that map
to the relevant header data, but the sizeof the structure is 24 bytes due to
4 bytes of padding at the end of the structure. Packing the structure ensures
that we don't advance too far over the rtas buffer.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>