Re: [PATCH] RDMA/mlx5: Use clamp() in _mlx5r_umr_zap_mkey()

[Leon Romanovsky <leon@kernel.org>]

On Tue, Mar 10, 2026 at 09:24:40PM +0000, David Laight wrote:
> On Tue, 10 Mar 2026 15:57:28 +0100
> Thorsten Blum <thorsten.blum@linux.dev> wrote:
> 
> > Replace min(max()) with clamp(). No functional change.
> > 
> > Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
> > ---
> >  drivers/infiniband/hw/mlx5/umr.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/infiniband/hw/mlx5/umr.c b/drivers/infiniband/hw/mlx5/umr.c
> > index 4e562e0dd9e1..1a6b0ac5c24d 100644
> > --- a/drivers/infiniband/hw/mlx5/umr.c
> > +++ b/drivers/infiniband/hw/mlx5/umr.c
> > @@ -1013,7 +1013,7 @@ static int _mlx5r_umr_zap_mkey(struct mlx5_ib_mr *mr,
> >  		 MLX5_IB_UPD_XLT_ATOMIC;
> >  	max_log_size = get_max_log_entity_size_cap(dev, access_mode);
> >  	max_page_shift = order_base_2(mr->ibmr.length);
> > -	max_page_shift = min(max(max_page_shift, page_shift), max_log_size);
> > +	max_page_shift = clamp(max_page_shift, page_shift, max_log_size);
> 
> Is page_shift absolutely guaranteed to be less than (or equal to)
> max_log_size?

I asked same question here.
https://lore.kernel.org/all/20260310184744.GI12611@unreal/

Thanks