linux_dsm_epyc7002/Documentation/scsi
Seymour, Shane M d9b43a10f0 st: allow debug output to be enabled or disabled via sysfs
Change st driver to allow enabling or disabling debug output
via sysfs file /sys/bus/scsi/drivers/st/debug_flag.

Previously the only way to enable debug output was:

1. loading the driver with the module parameter debug_flag=1
2. an ioctl call (this method was also the only way to dynamically
disable debug output).

To use the ioctl you need a second tape drive (if you are
actively testing the first tape drive) since a second process
cannot open the first tape drive if it is in use.

The this change is only functional if the value of the macro
DEBUG in st.c is a non-zero value (which it is by default).

Signed-off-by: Shane Seymour <shane.seymour@hpe.com>
Reviewed-by: Laurence Oberman <oberman.l@gmail.com>
Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09 17:17:27 -08:00
..
scsi_transport_srp scsi_transport_srp: Add rport state diagram 2014-01-21 10:46:17 -08:00
00-INDEX Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
53c700.txt
aacraid.txt
advansys.txt
aha152x.txt
aic7xxx.txt
aic79xx.txt
arcmsr_spec.txt
bfa.txt
bnx2fc.txt
BusLogic.txt
ChangeLog.1992-1997
ChangeLog.arcmsr
ChangeLog.ips
ChangeLog.lpfc
ChangeLog.megaraid
ChangeLog.megaraid_sas megaraid_sas: Version and Changelog update 2014-09-16 09:09:54 -07:00
ChangeLog.ncr53c8xx
ChangeLog.sym53c8xx
ChangeLog.sym53c8xx_2
cxgb3i.txt
dc395x.txt
dpti.txt
dtc3x80.txt
FlashPoint.txt
g_NCR5380.txt
hpsa.txt
hptiop.txt Documentation/scsi/hptiop.txt fix a typo 2013-08-20 12:41:12 +02:00
in2000.txt
libsas.txt libsas: remove task_collector mode 2014-11-27 16:40:24 +01:00
LICENSE.FlashPoint
LICENSE.qla2xxx qla2xxx: Change copyright year to 2014 in all the source files. 2014-05-19 13:31:02 +02:00
LICENSE.qla4xxx [SCSI] qla4xxx: Update Copyright header 2013-09-03 07:27:54 -07:00
link_power_management_policy.txt
lpfc.txt
megaraid.txt
Mylex.txt
ncr53c8xx.txt genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
NinjaSCSI.txt
osd.txt Boaz Harrosh - fix email in Documentation 2014-10-19 20:36:36 +03:00
osst.txt
ppa.txt
qlogicfas.txt
scsi_eh.txt scsi: Fix "choir" and "beeing" malaprops 2014-10-29 14:33:46 +01:00
scsi_fc_transport.txt
scsi_mid_low_api.txt Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
scsi-changer.txt
scsi-generic.txt
scsi-parameters.txt
scsi.txt
st.txt st: allow debug output to be enabled or disabled via sysfs 2015-11-09 17:17:27 -08:00
sym53c8xx_2.txt
sym53c500_cs.txt
tmscsim.txt genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
ufs.txt
wd719x.txt wd719x: Add firmware documentation 2014-11-25 15:42:55 +01:00