scsi: qedf: fixup compilation warning about atomic_t usage
Based on an original patch by Hannes Reinecke.
The driver didn't follow the atomic_t vs refcount_t change, and anyway
one should be using kref_read() instead of accessing the counter inside
an kref.
Fixes: 61d8658b4a435e ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.)
Cc: Hannes Reinecke <hare@suse.de>
Cc: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Dupuis, Chad <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
index 486c045..ee0dcf9 100644
--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -998,7 +998,7 @@ static void qedf_trace_io(struct qedf_rport *fcport, struct qedf_ioreq *io_req,
io_log->sg_count = scsi_sg_count(sc_cmd);
io_log->result = sc_cmd->result;
io_log->jiffies = jiffies;
- io_log->refcount = atomic_read(&io_req->refcount.refcount);
+ io_log->refcount = kref_read(&io_req->refcount);
if (direction == QEDF_IO_TRACE_REQ) {
/* For requests we only care abot the submission CPU */
@@ -1340,7 +1340,7 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
/* Good I/O completion */
sc_cmd->result = DID_OK << 16;
} else {
- refcount = atomic_read(&io_req->refcount.refcount);
+ refcount = kref_read(&io_req->refcount);
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
"%d:0:%d:%d xid=0x%0x op=0x%02x "
"lba=%02x%02x%02x%02x cdb_status=%d "
@@ -1425,7 +1425,7 @@ void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
qedf_unmap_sg_list(qedf, io_req);
sc_cmd->result = result << 16;
- refcount = atomic_read(&io_req->refcount.refcount);
+ refcount = kref_read(&io_req->refcount);
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%d: Completing "
"sc_cmd=%p result=0x%08x op=0x%02x lba=0x%02x%02x%02x%02x, "
"allowed=%d retries=%d refcount=%d.\n",
@@ -1556,7 +1556,7 @@ static void qedf_flush_els_req(struct qedf_ctx *qedf,
{
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
"Flushing ELS request xid=0x%x refcount=%d.\n", els_req->xid,
- atomic_read(&els_req->refcount.refcount));
+ kref_read(&els_req->refcount));
/*
* Need to distinguish this from a timeout when calling the