Please apply http://patchwork.ozlabs.org/patch/139660/ to the qemu-trivial patch queue. Here are two additional trivial patches which also touch MemoryRegionOps and make the code more uniform.
[PATCH 1/2] ppc: Add missing 'static' to spin_rw_ops [PATCH 2/2] sh7750: Remove redundant 'struct' from MemoryRegionOps Regards, Stefan W.