From: John Garry <john.garry@huawei.com>
Date: Thu, 15 Nov 2018 18:20:29 +0800
Subject: scsi: libsas: Use pr_fmt(fmt)
Patch-mainline: v5.0-rc1
Git-commit: d188e5db9d274db4c183861438f883c1d74b0f16
References: FATE#326253

In preparation for dropping the libsas printk wrappers, use pr_fmt(fmt)
declaration to add the framework log prefix - "sas".

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/scsi/libsas/sas_ata.c      |    2 +-
 drivers/scsi/libsas/sas_internal.h |   13 +++++++++++--
 drivers/scsi/libsas/sas_task.c     |    3 +++
 3 files changed, 15 insertions(+), 3 deletions(-)

--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -375,7 +375,7 @@ static int sas_ata_printk(const char *le
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
-	r = printk("%ssas: ata%u: %s: %pV",
+	r = printk("%s" SAS_FMT "ata%u: %s: %pV",
 		   level, ap->print_id, dev_name(dev), &vaf);
 
 	va_end(args);
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -32,9 +32,18 @@
 #include <scsi/libsas.h>
 #include <scsi/sas_ata.h>
 
-#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define SAS_FMT "sas: "
+
+#define pr_fmt(fmt) SAS_FMT fmt
+
+#define sas_printk(fmt, ...) printk(KERN_NOTICE fmt, ## __VA_ARGS__)
+
+#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG fmt, ## __VA_ARGS__)
 
-#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
 
 #define TO_SAS_TASK(_scsi_cmd)  ((void *)(_scsi_cmd)->host_scribble)
 #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
--- a/drivers/scsi/libsas/sas_task.c
+++ b/drivers/scsi/libsas/sas_task.c
@@ -1,3 +1,6 @@
+
+#include "sas_internal.h"
+
 #include <linux/kernel.h>
 #include <linux/export.h>
 #include <scsi/sas.h>