[SCSI] boot options: correct option name and tell where to find docs for it

Minor corrections and additions to 'scsi_logging_level', as pointed out
by Chuck Ebbert.
Also point out the IBM S390-tools 'scsi_logging_level' script.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c4178778e7fd..99938b8b50e1 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1593,7 +1593,13 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format: <vendor>:<model>:<flags>
                         (flags are integer value)
 
-        scsi_logging=   [SCSI]
+        scsi_logging_level=     [SCSI] a bit mask of logging levels
+                        See drivers/scsi/scsi_logging.h for bits.  Also
+                        settable via sysctl at dev.scsi.logging_level
+                        (/proc/sys/dev/scsi/logging_level).
+                        There is also a nice 'scsi_logging_level' script in the
+                        S390-tools package, available for download at
+                        http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
 
         scsi_mod.scan=  [SCSI] sync (default) scans SCSI busses as they are
                         discovered.  async scans them in kernel threads,