[PATCH V4] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx

[David Laight]

> Hmm, seems there's no probe_user_address() -- for userspace we
> basically want the same thing minus the KERNEL_DS.  See
> arch/powerpc/perf/callchain.c for an example.

Isn't that just copy_from_user() ?

	David