[SCSI] qla2xxx: Use less stack to emit logging messages.

Return early when logging level too low.
Use normal kernel codeing style for function braces.
Add const where appropriate to logging functions.
Remove now unused #define QL_DBG_BUF_LEN.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index 98a377b..0692814 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -245,14 +245,14 @@
 extern int ql_errlev;
 
 void
-ql_dbg(uint32_t, scsi_qla_host_t *vha, int32_t, char *, ...);
+ql_dbg(uint32_t, scsi_qla_host_t *vha, int32_t, const char *fmt, ...);
 void
-ql_dbg_pci(uint32_t, struct pci_dev *pdev, int32_t, char *, ...);
+ql_dbg_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...);
 
 void
-ql_log(uint32_t, scsi_qla_host_t *vha, int32_t, char *, ...);
+ql_log(uint32_t, scsi_qla_host_t *vha, int32_t, const char *fmt, ...);
 void
-ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, char *, ...);
+ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...);
 
 /* Debug Levels */
 /* The 0x40000000 is the max value any debug level can have
@@ -275,5 +275,3 @@
 #define ql_dbg_misc	0x00010000 /* For dumping everything that is not
 				    * not covered by upper categories
 				    */
-
-#define QL_DBG_BUF_LEN	512