Re: [PATCH] powerpc: fix pgtable pmd cache init

Nicholas Piggin [off-list ref] writes:

On Wed, 04 Jan 2017 07:34:41 +0530
"Aneesh Kumar K.V" [off-list ref] wrote:

quoted

Nicholas Piggin [off-list ref] writes:

quoted

Commit 9b081e10805cd ("powerpc: port 64 bits pgtable_cache to 32 bits")
mixed up PMD_INDEX_SIZE and PMD_CACHE_INDEX a couple of times. This
resulted in 64s/hash/4k configs to panic at boot with a false positive
error check.

Fix that and simplify error handling by moving the check to the caller.

Fixes: 9b081e10805cd ("powerpc: port 64 bits pgtable_cache to 32 bits")
Cc: Christophe Leroy <redacted>
Cc: Aneesh Kumar K.V <redacted>
Cc: Scott Wood <oss@buserror.net>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>  

I did another fix here.

https://lkml.kernel.org/r/20161214043349.23677-1-aneesh.kumar@linux.vnet.ibm.com

But this patch makes it much simpler. Hence.

Reviewed-by: Aneesh Kumar K.V <redacted>

There is this hunk in the patch I did.

Ah, I missed that. My patch just fixes the 9b081e10805cd bug, but this
hunk looks like it should still go in as another patch. Will you resend
it?

ok will do that.

-aneesh