Re: [PATCH rdma-next 1/1] RDMA/mana_ib: memory windows

[Leon Romanovsky <leon@kernel.org>]

On Fri, Mar 06, 2026 at 02:57:58AM -0800, Konstantin Taranov wrote:
> From: Konstantin Taranov <kotaranov@microsoft.com>
> 
> Implement .alloc_mw() and .dealloc_mw() for mana device.
> 
> Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
> ---
> As I see that Jason's rdma_uapi is not in the next yet. I will make a patch
> adding his helpers (e.g., ib_is_udata_in_empty() for mw) with all other
> api calls.
>  drivers/infiniband/hw/mana/device.c  |  3 ++
>  drivers/infiniband/hw/mana/mana_ib.h |  8 ++++
>  drivers/infiniband/hw/mana/mr.c      | 57 +++++++++++++++++++++++++++-
>  include/net/mana/gdma.h              |  5 +++
>  4 files changed, 72 insertions(+), 1 deletion(-)

<...>

> +	err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
> +	if (err || resp.hdr.status) {
> +		if (!err)
> +			err = -EPROTO;
> +
> +		return err;
> +	}

We already had this discussion about this specific pattern.
https://lore.kernel.org/linux-rdma/20260127141929.GV13967@unreal/

Please fix it first.

Thanks