scsi: ibmvfc: Fix missing cast of ibmvfc_event pointer to u64 handle

Commit 2aa0102c6688 ("scsi: ibmvfc: Use correlation token to tag commands")
sets the vfcFrame correlation token to the pointer handle of the associated
ibmvfc_event. However, that commit failed to cast the pointer to an
appropriate type which in this case is a u64. As such sparse warnings are
generated for both correlation token assignments.

 ibmvfc.c:2375:36: sparse: incorrect type in argument 1 (different base types)
 ibmvfc.c:2375:36: sparse: expected unsigned long long [usertype] val
 ibmvfc.c:2375:36: sparse: got struct ibmvfc_event *[assigned] evt

Add the appropriate u64 casts when assigning an ibmvfc_event as a
correlation token.

Link: https://lore.kernel.org/r/20210106203721.1054693-1-tyreld@linux.ibm.com
Fixes: 2aa0102c6688 ("scsi: ibmvfc: Use correlation token to tag commands")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 42e4d35..7312f31 100644 (file)
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1744,7 +1744,7 @@ static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd,
                iu->pri_task_attr = IBMVFC_SIMPLE_TASK;
        }
 
-       vfc_cmd->correlation = cpu_to_be64(evt);
+       vfc_cmd->correlation = cpu_to_be64((u64)evt);
 
        if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
                return ibmvfc_send_event(evt, vhost, 0);
@@ -2418,7 +2418,7 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev)
                tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
                evt->sync_iu = &rsp_iu;
 
-               tmf->correlation = cpu_to_be64(evt);
+               tmf->correlation = cpu_to_be64((u64)evt);
 
                init_completion(&evt->comp);
                rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);