xen/blkback: Use the DRV_PFX in the pr_.. macros.

To make it easier to read.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 46e5d0630440..da96e3eaa641 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -42,8 +42,9 @@
 #include <xen/grant_table.h>
 #include <xen/xenbus.h>
 
+#define DRV_PFX "xen-blkback:"
 #define DPRINTK(fmt, args...)                           \
-        pr_debug("xen-blkback: (%s:%d) " fmt ".\n",     \
+        pr_debug(DRV_PFX "(%s:%d) " fmt ".\n",  \
                  __func__, __LINE__, ##args)
 
 struct vbd {