i40iw: remove support for ib_get_vector_affinity

Devices that does not use managed affinity can not export a vector
affinity as the consumer relies on having a static mapping it can map to
upper layer affinity (e.g. sw queues). If the driver allows the user to
set the device irq affinity, then the affinitization of a long term
existing entites is not relevant.

For example, nvme-rdma controllers queue-irq affinitization is determined
at init time so if the irq affinity changes over time, we are no longer
aligned.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/i40iw/i40iw_verbs.c

@@ -2721,25 +2721,6 @@ static int i40iw_query_pkey(struct ib_device *ibdev,
 	return 0;
 }
 
-/**
- * i40iw_get_vector_affinity - report IRQ affinity mask
- * @ibdev: IB device
- * @comp_vector: completion vector index
- */
-static const struct cpumask *i40iw_get_vector_affinity(struct ib_device *ibdev,
-						       int comp_vector)
-{
-	struct i40iw_device *iwdev = to_iwdev(ibdev);
-	struct i40iw_msix_vector *msix_vec;
-
-	if (iwdev->msix_shared)
-		msix_vec = &iwdev->iw_msixtbl[comp_vector];
-	else
-		msix_vec = &iwdev->iw_msixtbl[comp_vector + 1];
-
-	return irq_get_affinity_mask(msix_vec->irq);
-}
-
 /**
  * i40iw_init_rdma_device - initialization of iwarp device
  * @iwdev: iwarp device
@@ -2832,7 +2813,6 @@ static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev
 	iwibdev->ibdev.req_notify_cq = i40iw_req_notify_cq;
 	iwibdev->ibdev.post_send = i40iw_post_send;
 	iwibdev->ibdev.post_recv = i40iw_post_recv;
-	iwibdev->ibdev.get_vector_affinity = i40iw_get_vector_affinity;
 
 	return iwibdev;
 }