[SCSI] iscsi: fix up iscsi printk prefix

Some iscsi class messages have the dev_printk prefix and some libiscsi
and iscsi_tcp messages have "iscsi" or the module name as a prefix which
is normally pretty useless when trying to figure out which session
or connection the message is attached to. This patch adds iscsi lib
and class dev_printks so all messages have a common prefix that
can be used to figure out which object printed it.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 83693ba09c29..dbc96ef4cc72 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -212,6 +212,12 @@ struct iscsi_host {
 /*
  * session and connection functions that can be used by HW iSCSI LLDs
  */
+#define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \
+	dev_printk(prefix, &(_cls_session)->dev, fmt, ##a)
+
+#define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \
+	dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a)
+
 extern int iscsi_session_chkready(struct iscsi_cls_session *session);
 extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost,
 					struct iscsi_transport *transport);