Re: powerpc/powernv: copy/paste - Mask SO bit in CR
From: Michael Ellerman <hidden>
Date: 2018-06-05 15:19:34
On Mon, 2018-06-04 at 08:33:38 UTC, Michael Ellerman wrote:
NX can set the 3rd bit in CR register for XER[SO] (Summary overflow)
which is not related to paste request. The current paste function
returns failure for a successful request when this bit is set. So mask
this bit and check the proper return status.
Fixes: 2392c8c8c045 ("powerpc/powernv/vas: Define copy/paste interfaces")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>Applied to powerpc next. https://git.kernel.org/powerpc/c/75743649064ec0cf5ddd69f240ef23 cheers