[SCSI] Fix device not ready printk

Because scsi_print_sense_hdr prefixes with KERN_INFO, the output from
scsi_io_completion looks like:

sd 0:0:0:0: [sdb] Device not ready: <6>: Sense Key : 0x2 [current]
: ASC=0x4 ASCQ=0x3

By using scsi_show_sense_hdr, we can get the much more appealing output:

sd 0:0:0:0: [sdb] Device not ready: Sense Key : 0x2 [current]
sd 0:0:0:0: [sdb] Device not ready: ASC=0x4 ASCQ=0x3

Acked-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

3 files changed, 21 insertions, 5 deletions

diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 7bdeed1c5a56..024553f9c247 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1235,6 +1235,20 @@ scsi_print_sense_hdr(const char *name, struct scsi_sense_hdr *sshdr)
 }
 EXPORT_SYMBOL(scsi_print_sense_hdr);
 
+/*
+ * Print normalized SCSI sense header with device information and a prefix.
+ */
+void
+scsi_cmd_print_sense_hdr(struct scsi_cmnd *scmd, const char *desc,
+                          struct scsi_sense_hdr *sshdr)
+{
+        scmd_printk(KERN_INFO, scmd, "%s: ", desc);
+        scsi_show_sense_hdr(sshdr);
+        scmd_printk(KERN_INFO, scmd, "%s: ", desc);
+        scsi_show_extd_sense(sshdr->asc, sshdr->ascq);
+}
+EXPORT_SYMBOL(scsi_cmd_print_sense_hdr);
+
 static void
 scsi_decode_sense_buffer(const unsigned char *sense_buffer, int sense_len,
                        struct scsi_sense_hdr *sshdr)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 94d82cb96626..86fd3abe731a 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -944,11 +944,11 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
                                         break;
                                 }
                         }
-                        if (!(req->cmd_flags & REQ_QUIET)) {
-                                scmd_printk(KERN_INFO, cmd,
-                                            "Device not ready: ");
-                                scsi_print_sense_hdr("", &sshdr);
-                        }
+                        if (!(req->cmd_flags & REQ_QUIET))
+                                scsi_cmd_print_sense_hdr(cmd,
+                                                         "Device not ready",
+                                                         &sshdr);
+
                         scsi_end_request(cmd, 0, this_count, 1);
                         return;
                 case VOLUME_OVERFLOW:
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 5a43a4cd96c6..e89844cc2cd3 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -9,6 +9,8 @@ extern void __scsi_print_command(unsigned char *);
 extern void scsi_show_extd_sense(unsigned char, unsigned char);
 extern void scsi_show_sense_hdr(struct scsi_sense_hdr *);
 extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
+extern void scsi_cmd_print_sense_hdr(struct scsi_cmnd *, const char *,
+                                     struct scsi_sense_hdr *);
 extern void scsi_print_sense(char *, struct scsi_cmnd *);
 extern void __scsi_print_sense(const char *name,
                                const unsigned char *sense_buffer,