Re: [PATCH rdma-next v2] RDMA/mana_ib: hardening: Clamp adapter capability values from MANA_IB_GET_ADAPTER_CAP

[Jason Gunthorpe]

On Thu, Mar 12, 2026 at 11:16:41AM -0700, Erni Sri Satya Vennela wrote:
> The response fields (max_qp_count, max_cq_count, max_mr_count,
> max_pd_count, max_inbound_read_limit, max_outbound_read_limit,
> max_qp_wr, max_send_sge_count, max_recv_sge_count) are u32 but are
> assigned to signed int members in struct ib_device_attr.

There is no reason they should be signed, you should just fix the
type.

I'm also not convinced clamping to such a high value has any value
whatsoever, as it probably still triggers maths overflows elsewhere. I
think you should clamp to reasonable limits for your device if you
want to do this.

Jason