Since commit 
188917e183cf9ad0374b571006d0fc6d48a7f447, /proc/ppc64 is a
symlink to /proc/powerpc/. That means that creating /proc/ppc64/eeh will
end up with a unaccessible file, that is not listed under /proc/powerpc/
and, then, not listed under /proc/ppc64/.
Creating /proc/powerpc/eeh fixes that problem and maintain the
compatibility intended with the ppc64 symlink.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <stable@kernel.org>	[3.x]
 static int __init eeh_init_proc(void)
 {
        if (machine_is(pseries))
-               proc_create("ppc64/eeh", 0, NULL, &proc_eeh_operations);
+               proc_create("powerpc/eeh", 0, NULL, &proc_eeh_operations);
        return 0;
 }
 __initcall(eeh_init_proc);