scsi: RDMA/iser: Use scsi_cmd_to_rq() instead of scsi_cmnd.request

Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-9-bvanassche@acm.org
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index afec40d..9776b75 100644 (file)
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -159,7 +159,7 @@ iser_set_dif_domain(struct scsi_cmnd *sc, struct ib_sig_domain *domain)
 {
        domain->sig_type = IB_SIG_TYPE_T10_DIF;
        domain->sig.dif.pi_interval = scsi_prot_interval(sc);
-       domain->sig.dif.ref_tag = t10_pi_ref_tag(sc->request);
+       domain->sig.dif.ref_tag = t10_pi_ref_tag(scsi_cmd_to_rq(sc));
        /*
         * At the moment we hard code those, but in the future
         * we will take them from sc.