RDMA/efa: Remove check that prevents destroy of resources in error flows

Drivers cannot check the udata for validity when doing destroy as there
will be no way to report this error back to the uverbs.

Since udata is new for destroy no driver should start to use it - instead
drivers should opt for the ioctl interface and define it in a way where it
cannot fail due to incorrect data.

Remove the checks on udata construction so EFA is consistent with
everything else.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 6d6886c9009f20f0bf23da7c9d1d66af8a79b650..4999a74cee242d5005c719126159b747779910b2 100644 (file)
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -436,12 +436,6 @@ void efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
        struct efa_dev *dev = to_edev(ibpd->device);
        struct efa_pd *pd = to_epd(ibpd);
 
-       if (udata->inlen &&
-           !ib_is_udata_cleared(udata, 0, udata->inlen)) {
-               ibdev_dbg(&dev->ibdev, "Incompatible ABI params\n");
-               return;
-       }
-
        ibdev_dbg(&dev->ibdev, "Dealloc pd[%d]\n", pd->pdn);
        efa_pd_dealloc(dev, pd->pdn);
 }
@@ -459,12 +453,6 @@ int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
        struct efa_qp *qp = to_eqp(ibqp);
        int err;
 
-       if (udata->inlen &&
-           !ib_is_udata_cleared(udata, 0, udata->inlen)) {
-               ibdev_dbg(&dev->ibdev, "Incompatible ABI params\n");
-               return -EINVAL;
-       }
-
        ibdev_dbg(&dev->ibdev, "Destroy qp[%u]\n", ibqp->qp_num);
        err = efa_destroy_qp_handle(dev, qp->qp_handle);
        if (err)
@@ -865,12 +853,6 @@ int efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata)
        struct efa_cq *cq = to_ecq(ibcq);
        int err;
 
-       if (udata->inlen &&
-           !ib_is_udata_cleared(udata, 0, udata->inlen)) {
-               ibdev_dbg(&dev->ibdev, "Incompatible ABI params\n");
-               return -EINVAL;
-       }
-
        ibdev_dbg(&dev->ibdev,
                  "Destroy cq[%d] virt[0x%p] freed: size[%lu], dma[%pad]\n",
                  cq->cq_idx, cq->cpu_addr, cq->size, &cq->dma_addr);
@@ -1556,12 +1538,6 @@ int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
        struct efa_mr *mr = to_emr(ibmr);
        int err;
 
-       if (udata->inlen &&
-           !ib_is_udata_cleared(udata, 0, udata->inlen)) {
-               ibdev_dbg(&dev->ibdev, "Incompatible ABI params\n");
-               return -EINVAL;
-       }
-
        ibdev_dbg(&dev->ibdev, "Deregister mr[%d]\n", ibmr->lkey);
 
        if (mr->umem) {