RDMA/bnxt_re: Remove unsupported bnxt_re_modify_ah callback

There is no need to return always zero for function which is not
supported, especially since 0 is the wrong return code.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kamal Heib <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: Kamalheib

drivers/infiniband/hw/bnxt_re/ib_verbs.c

@@ -708,11 +708,6 @@ int bnxt_re_create_ah(struct ib_ah *ib_ah, struct rdma_ah_init_attr *init_attr,
 	return 0;
 }
 
-int bnxt_re_modify_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
-{
-	return 0;
-}
-
 int bnxt_re_query_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
 {
 	struct bnxt_re_ah *ah = container_of(ib_ah, struct bnxt_re_ah, ib_ah);

drivers/infiniband/hw/bnxt_re/ib_verbs.h

@@ -166,7 +166,6 @@ int bnxt_re_alloc_pd(struct ib_pd *pd, struct ib_udata *udata);
 int bnxt_re_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);
 int bnxt_re_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr,
 		      struct ib_udata *udata);
-int bnxt_re_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
 int bnxt_re_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
 int bnxt_re_destroy_ah(struct ib_ah *ah, u32 flags);
 int bnxt_re_create_srq(struct ib_srq *srq,

drivers/infiniband/hw/bnxt_re/main.c

@@ -696,7 +696,6 @@ static const struct ib_device_ops bnxt_re_dev_ops = {
 	.get_port_immutable = bnxt_re_get_port_immutable,
 	.map_mr_sg = bnxt_re_map_mr_sg,
 	.mmap = bnxt_re_mmap,
-	.modify_ah = bnxt_re_modify_ah,
 	.modify_qp = bnxt_re_modify_qp,
 	.modify_srq = bnxt_re_modify_srq,
 	.poll_cq = bnxt_re_poll_cq,