Re: [for-next v2 2/2] RDMA/ionic: Add RCQ userspace support

[Jason Gunthorpe]

On Thu, Jun 11, 2026 at 02:55:43PM +0530, Abhijit Gangurde wrote:
> @@ -2154,7 +2157,7 @@ int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attr,
>  	int rc;
>  
>  	if (udata) {
> -		rc = ib_copy_validate_udata_in(udata, req, rsvd);
> +		rc = ib_copy_validate_udata_in(udata, req, ionic_flags);
                                                            ^^^^^^^^^

>  struct ionic_qdesc {
> @@ -84,6 +85,7 @@ struct ionic_qp_req {
>  	__u8 rq_cmb;
>  	__u8 udma_mask;
>  	__u8 rsvd[3];
> +	__u32 ionic_flags;
>  };

That is not the right way to use these APIs, this will fail old
rdma-cores that used the smaller struct.

Please check everything you did here.

Please support IB_UVERBS_CORE_SUPPORT_ROBUST_UDATA before changing
anything, and your userspace needs to check it before using extended
functions.

Jason