On 16/11/16 02:06, Aneesh Kumar K.V wrote:
> VSID 0 is bad address. Don't create slb entries on coproc fault for
> bad address
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
> ---
> NOTE: note tested
^^^ ?
>
> arch/powerpc/mm/copro_fault.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
> index 362954f98029..aaa7ec6788b9 100644
> --- a/arch/powerpc/mm/copro_fault.c
> +++ b/arch/powerpc/mm/copro_fault.c
> @@ -134,6 +134,9 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea,
> struct copro_slb *slb)
> pr_debug("%s: invalid region access at %016llx\n", __func__,
> ea);
> return 1;
> }
> + /* Bad address */
> + if (!vsid)
> + return 1;
Reviewed-by: Balbir Singh <bsinghar...@gmail.com>
Balbir Singh.
