[PATCH 19/26] scsi: separate out scsi_(host|driver)byte_string()

2014-10-07 Thread Hannes Reinecke
Export functions for later use.

Reviewed-by: Robert Elliott 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Hannes Reinecke 
---
 drivers/scsi/constants.c | 58 
 include/scsi/scsi_dbg.h  |  2 ++
 2 files changed, 46 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index ea391f8..0fe50b4 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1406,38 +1406,68 @@ static const char * const hostbyte_table[]={
 "DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE",
 "DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE",
 "DID_NEXUS_FAILURE" };
-#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)
 
 static const char * const driverbyte_table[]={
 "DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT",  "DRIVER_MEDIA", "DRIVER_ERROR",
 "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
-#define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
 
-void scsi_show_result(int result)
+#endif
+
+const char *scsi_hostbyte_string(int result)
 {
+   const char *hb_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
int hb = host_byte(result);
-   int db = driver_byte(result);
 
-   printk("Result: hostbyte=%s driverbyte=%s\n",
-  (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb] : "invalid"),
-  (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
+   if (hb < ARRAY_SIZE(hostbyte_table))
+   hb_string = hostbyte_table[hb];
+#endif
+   return hb_string;
 }
+EXPORT_SYMBOL(scsi_hostbyte_string);
 
-#else
+const char *scsi_driverbyte_string(int result)
+{
+   const char *db_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
+   int db = driver_byte(result);
+
+   if (db < ARRAY_SIZE(driverbyte_table))
+   db_string = driverbyte_table[db];
+#endif
+   return db_string;
+}
+EXPORT_SYMBOL(scsi_driverbyte_string);
 
 void scsi_show_result(int result)
 {
-   printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-  host_byte(result), driver_byte(result));
-}
+   const char *hb_string = scsi_hostbyte_string(result);
+   const char *db_string = scsi_driverbyte_string(result);
 
-#endif
+   if (hb_string || db_string)
+   printk("Result: hostbyte=%s driverbyte=%s\n",
+  hb_string ? hb_string : "invalid",
+  db_string ? db_string : "invalid");
+   else
+   printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
+  host_byte(result), driver_byte(result));
+}
 EXPORT_SYMBOL(scsi_show_result);
 
 
 void scsi_print_result(struct scsi_cmnd *cmd)
 {
-   scmd_printk(KERN_INFO, cmd, " ");
-   scsi_show_result(cmd->result);
+   const char *hb_string = scsi_hostbyte_string(cmd->result);
+   const char *db_string = scsi_driverbyte_string(cmd->result);
+
+   if (hb_string || db_string)
+   scmd_printk(KERN_INFO, cmd,
+   "Result: hostbyte=%s driverbyte=%s",
+   hb_string ? hb_string : "invalid",
+   db_string ? db_string : "invalid");
+   else
+   scmd_printk(KERN_INFO, cmd,
+   "Result: hostbyte=0x%02x driverbyte=0x%02x",
+   host_byte(cmd->result), driver_byte(cmd->result));
 }
 EXPORT_SYMBOL(scsi_print_result);
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 81d0418..50f4d85 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(const struct scsi_device *, 
const char *name,
   int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_hostbyte_string(int);
+extern const char *scsi_driverbyte_string(int);
 extern const char *scsi_sense_key_string(unsigned char);
 extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
  const char **);
-- 
1.8.5.2

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[PATCH 19/26] scsi: separate out scsi_(host|driver)byte_string()

2014-10-06 Thread Hannes Reinecke
Export functions for later use.

Reviewed-by: Robert Elliott 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Hannes Reinecke 
---
 drivers/scsi/constants.c | 58 
 include/scsi/scsi_dbg.h  |  2 ++
 2 files changed, 46 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 84b2614..3244ec2 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1406,38 +1406,68 @@ static const char * const hostbyte_table[]={
 "DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE",
 "DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE",
 "DID_NEXUS_FAILURE" };
-#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)
 
 static const char * const driverbyte_table[]={
 "DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT",  "DRIVER_MEDIA", "DRIVER_ERROR",
 "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
-#define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
 
-void scsi_show_result(int result)
+#endif
+
+const char *scsi_hostbyte_string(int result)
 {
+   const char *hb_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
int hb = host_byte(result);
-   int db = driver_byte(result);
 
-   printk("Result: hostbyte=%s driverbyte=%s\n",
-  (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb] : "invalid"),
-  (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
+   if (hb < ARRAY_SIZE(hostbyte_table))
+   hb_string = hostbyte_table[hb];
+#endif
+   return hb_string;
 }
+EXPORT_SYMBOL(scsi_hostbyte_string);
 
-#else
+const char *scsi_driverbyte_string(int result)
+{
+   const char *db_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
+   int db = driver_byte(result);
+
+   if (db < ARRAY_SIZE(driverbyte_table))
+   db_string = driverbyte_table[db];
+#endif
+   return db_string;
+}
+EXPORT_SYMBOL(scsi_driverbyte_string);
 
 void scsi_show_result(int result)
 {
-   printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-  host_byte(result), driver_byte(result));
-}
+   const char *hb_string = scsi_hostbyte_string(result);
+   const char *db_string = scsi_driverbyte_string(result);
 
-#endif
+   if (hb_string || db_string)
+   printk("Result: hostbyte=%s driverbyte=%s\n",
+  hb_string ? hb_string : "invalid",
+  db_string ? db_string : "invalid");
+   else
+   printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
+  host_byte(result), driver_byte(result));
+}
 EXPORT_SYMBOL(scsi_show_result);
 
 
 void scsi_print_result(struct scsi_cmnd *cmd)
 {
-   scmd_printk(KERN_INFO, cmd, " ");
-   scsi_show_result(cmd->result);
+   const char *hb_string = scsi_hostbyte_string(cmd->result);
+   const char *db_string = scsi_driverbyte_string(cmd->result);
+
+   if (hb_string || db_string)
+   scmd_printk(KERN_INFO, cmd,
+   "Result: hostbyte=%s driverbyte=%s",
+   hb_string ? hb_string : "invalid",
+   db_string ? db_string : "invalid");
+   else
+   scmd_printk(KERN_INFO, cmd,
+   "Result: hostbyte=0x%02x driverbyte=0x%02x",
+   host_byte(cmd->result), driver_byte(cmd->result));
 }
 EXPORT_SYMBOL(scsi_print_result);
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 81d0418..50f4d85 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(const struct scsi_device *, 
const char *name,
   int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_hostbyte_string(int);
+extern const char *scsi_driverbyte_string(int);
 extern const char *scsi_sense_key_string(unsigned char);
 extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
  const char **);
-- 
1.8.5.2

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