Re: [PATCH v18 11/15] IB/mlx4: untag user pointers in mlx4_get_umem_mr

Andrey Konovalov
2019-07-15T16:01:46Z

On Mon, Jun 24, 2019 at 7:40 PM Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> On Mon, Jun 24, 2019 at 04:32:56PM +0200, Andrey Konovalov wrote:
> > This patch is a part of a series that extends kernel ABI to allow to pass
> > tagged user pointers (with the top byte set to something else other than
> > 0x00) as syscall arguments.
> >
> > mlx4_get_umem_mr() uses provided user pointers for vma lookups, which can
> > only by done with untagged pointers.
> >
> > Untag user pointers in this function.
> >
> > Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
> > ---
> > drivers/infiniband/hw/mlx4/mr.c | 7 ++++---
> > 1 file changed, 4 insertions(+), 3 deletions(-)
>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>
> This patch also needs an ack from the infiniband maintainers (Jason).

Hi Jason,

Could you take a look and give your acked-by?

Thanks!

>
> --
> Catalin