[rds-devel] [External] : Re: [PATCH net-next v5] RDMA: Change capability fields in ib_device_attr from int to u32

[Erni Sri Satya Vennela]

On Mon, Jun 01, 2026 at 02:14:44AM -0700, Erni Sri Satya Vennela wrote:
> The capability counter fields in struct ib_device_attr are declared
> as signed int, but these values are inherently non-negative. Drivers
> maintain their cached caps as u32 and assign them directly into these
> int fields; if a cap exceeds INT_MAX the implicit narrowing yields a
> negative value visible to the IB core.
> 
> Change the signed int capability fields to u32 to match the
> underlying nature of the data. Also update consumers across the IB
> core, ULPs, NVMe-oF target, RDS, and NFS/RDMA so the new u32 values
> are not forced back through signed int or u8 via min()/min_t() or
> narrowing local variables.
> 
> Suggested-by: Jason Gunthorpe <jgg at nvidia.com>
> Signed-off-by: Erni Sri Satya Vennela <ernis at linux.microsoft.com>
> ---
Sorry for the incorrect prefix in v5 (used net-next instead of
rdma-next).
Please considerthe next version v6.

Thanks,
Vennela