GitHub/moto-9609/android_kernel_motorola_exynos9610.git
8 years agoMerge branch 'fixes' into misc
James Bottomley [Wed, 18 May 2016 01:12:50 +0000 (21:12 -0400)]
Merge branch 'fixes' into misc

8 years agompt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs
Chaitra P B [Fri, 6 May 2016 08:59:31 +0000 (14:29 +0530)]
mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs

Replaced mpt3sas_base_flush_reply_queues() with
mpt3sas_base_sync_reply_irqs(),as mpt3sas_base_flush_reply_queues()
skips over reply queues that are currently busy (i.e. being handled by
interrupt processing in another core). If a reply queue is busy, then
call to synchronize_irq()in mpt3sas_base_sync_reply_irqs()make sures the
other core has finished flushing the queue and completed any calls to
the mid-layer scsi_done() routine.

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Set maximum transfer length per IO to 4MB for VDs
Chaitra P B [Fri, 6 May 2016 08:59:30 +0000 (14:29 +0530)]
mpt3sas: Set maximum transfer length per IO to 4MB for VDs

Set maximum transfer length per IO on RAID volumes to 4MB by setting
VD's queue's max_sector to 8192.

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Updating mpt3sas driver version to 13.100.00.00
Chaitra P B [Fri, 6 May 2016 08:59:29 +0000 (14:29 +0530)]
mpt3sas: Updating mpt3sas driver version to 13.100.00.00

Bump mpt3sas driver version from 12.100.00.00 to 13.100.00.00

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Fix initial Reference tag field for 4K PI drives.
Chaitra P B [Fri, 6 May 2016 08:59:28 +0000 (14:29 +0530)]
mpt3sas: Fix initial Reference tag field for 4K PI drives.

Modified driver code to use scsi_prot_ref_tag() API instead of
scsi_get_lba(), while initializing reference tag field in the CDB.

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Handle active cable exception event
Chaitra P B [Fri, 6 May 2016 08:59:27 +0000 (14:29 +0530)]
mpt3sas: Handle active cable exception event

In-order to handle this 'MPI2_EVENT_ACTIVE_CABLE_EXCEPTION' event,
driver need to follow below steps,
1. Unmask the 'MPI2_EVENT_ACTIVE_CABLE_EXCEPTION' event,
so that FW can notify this event to host driver.
2. After receiving this event, add this event to AEN event queue,
for notifying this event to applications.
3. Then Print below message in kernel logs if the event data's reason
code is zero,
"Currently an active cable with ReceptacleID <ID_Value> cannot be powered
and devices connected to this active cable will not be seen. This active
cable requires <PowerValue_in_mW> of power"

This event is only for Intruder/Cutlass HBAs.

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Update MPI header to 2.00.42
Chaitra P B [Fri, 6 May 2016 08:59:26 +0000 (14:29 +0530)]
mpt3sas: Update MPI header to 2.00.42

Updated MPI version and MPI header files.

ChangeList:
* Added SATADeviceWaitTime to SAS IO Unit Page 4
* Added EEDPObservedValue added to SCSI IO Reply message
* Added MPI2_EVENT_ACTIVE_CABLE_EXCEPTION and
  MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoRevert "lpfc: Delete unnecessary checks before the function call mempool_destroy"
Martin K. Petersen [Tue, 10 May 2016 01:39:43 +0000 (21:39 -0400)]
Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy"

This reverts commit 9be321819c43417432a8376428b90fe3fe3a3510 which
caused a regression on hardware using the SLI3 interface.

Reported-by: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: <stable@vger.kernel.org> # 4.6+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
8 years agoeata_pio: missing break statement
Dan Carpenter [Wed, 4 May 2016 06:13:41 +0000 (09:13 +0300)]
eata_pio: missing break statement

This missing break statement bug predates git.  It's a very minor thing,
it means that we print a '?' instead of a 'z' in dmesg.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: Fix type ZBC conditional checks
Petros Koutoupis [Mon, 9 May 2016 18:44:10 +0000 (13:44 -0500)]
hpsa: Fix type ZBC conditional checks

The device ID obtained from the inquiry can only be of a single type.
The original code places a check for TYPE_ZBC right after the check for
TYPE_DISK. Logically, if the first if statement sees a device of a
TYPE_DISK and moves on to the second statement checking if not TYPE_ZBC,
it will always hit the continue.

[mkp: Applied by hand]

Signed-off-by: Petros Koutoupis <petros@petroskoutoupis.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_lib: Decode T10 vendor IDs
Hannes Reinecke [Mon, 9 May 2016 07:14:29 +0000 (09:14 +0200)]
scsi_lib: Decode T10 vendor IDs

Some arrays / HBAs will only present T10 vendor IDs, so we should be
decoding them, too.

[mkp: Fixed T10 spelling]

Suggested-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_dh_alua: do not fail for unknown VPD identification
Hannes Reinecke [Fri, 6 May 2016 08:34:35 +0000 (10:34 +0200)]
scsi_dh_alua: do not fail for unknown VPD identification

Not every device will return a useable VPD identification, but still
might support ALUA. Rather than disable ALUA support we should be
allowing the device identification to be empty and attach individual
ALUA device handler to each devices.

[mkp: Fixed typo reported by Bart]

Reported-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: use locally assigned naa
Douglas Gilbert [Fri, 6 May 2016 04:40:29 +0000 (00:40 -0400)]
scsi_debug: use locally assigned naa

For reported SAS addresses replace fake IEEE registered NAAs (5) with
locally assigned NAAs (3).

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: uuid for lu name
Douglas Gilbert [Fri, 6 May 2016 04:40:28 +0000 (00:40 -0400)]
scsi_debug: uuid for lu name

Permit changing of a LU name from a (fake) IEEE registered NAA (5) to a
locally assigned UUID. Using a UUID (RFC 4122) for a SCSI designation
descriptor (e.g. a LU name) was added in spc5r08.pdf (a draft INCITS
standard) on 25 January 2016. Add parameter uuid_ctl to use a separate
UUID for each LU (storage device) name.  Additional option for all LU
names to have the same UUID (since their storage is shared). Previous
action of using NAA identifier for LU name remains the default.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: vpd and mode page work
Douglas Gilbert [Fri, 6 May 2016 04:40:27 +0000 (00:40 -0400)]
scsi_debug: vpd and mode page work

Cleanup some mode and vpd pages. Stop reporting SBC (disk) pages when
peripheral type is something else (e.g. tape). Update version
descriptors. Expand LBPRZ flag handling.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: add multiple queue support
Douglas Gilbert [Fri, 6 May 2016 04:40:26 +0000 (00:40 -0400)]
scsi_debug: add multiple queue support

Add submit_queue parameter (minimum and default: 1; maximum: nr_cpu_ids)
that controls how many queues are built, each with their own lock and
in_use bit vector. Add statistics parameter which is default off.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agobfa: fix bfa_fcb_itnim_alloc() error handling
Dan Carpenter [Wed, 13 Apr 2016 11:14:41 +0000 (14:14 +0300)]
bfa: fix bfa_fcb_itnim_alloc() error handling

The caller assumes that "itnim" is NULL on error and non-NULL on success
but really "itnim" is uninitialized on error.  This function should just
use normal error handling where it returns zero on success and negative
on failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomegaraid_sas: Downgrade two success messages to info
Andy Lutomirski [Tue, 3 May 2016 17:24:31 +0000 (10:24 -0700)]
megaraid_sas: Downgrade two success messages to info

I actually read the error messages in my logs, and successful
initialization is not an error.

Arguably these log lines could be deleted entirely.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agocxlflash: Fix to resolve dead-lock during EEH recovery
Manoj N. Kumar [Tue, 3 May 2016 16:27:34 +0000 (11:27 -0500)]
cxlflash: Fix to resolve dead-lock during EEH recovery

When a cxlflash adapter goes into EEH recovery and multiple processes
(each having established its own context) are active, the EEH recovery
can hang if the processes attempt to recover in parallel. The symptom
logged after a couple of minutes is:

INFO: task eehd:48 blocked for more than 120 seconds.
Not tainted 4.5.0-491-26f710d+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
eehd            0    48      2
Call Trace:
__switch_to+0x2f0/0x410
__schedule+0x300/0x980
schedule+0x48/0xc0
rwsem_down_write_failed+0x294/0x410
down_write+0x88/0xb0
cxlflash_pci_error_detected+0x100/0x1c0 [cxlflash]
cxl_vphb_error_detected+0x88/0x110 [cxl]
cxl_pci_error_detected+0xb0/0x1d0 [cxl]
eeh_report_error+0xbc/0x130
eeh_pe_dev_traverse+0x94/0x160
eeh_handle_normal_event+0x17c/0x450
eeh_handle_event+0x184/0x370
eeh_event_handler+0x1c8/0x1d0
kthread+0x110/0x130
ret_from_kernel_thread+0x5c/0xa4
INFO: task blockio:33215 blocked for more than 120 seconds.

Not tainted 4.5.0-491-26f710d+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
blockio         0 33215  33213
Call Trace:
0x1 (unreliable)
__switch_to+0x2f0/0x410
__schedule+0x300/0x980
schedule+0x48/0xc0
rwsem_down_read_failed+0x124/0x1d0
down_read+0x68/0x80
cxlflash_ioctl+0x70/0x6f0 [cxlflash]
scsi_ioctl+0x3b0/0x4c0
sg_ioctl+0x960/0x1010
do_vfs_ioctl+0xd8/0x8c0
SyS_ioctl+0xd4/0xf0
system_call+0x38/0xb4
INFO: task eehd:48 blocked for more than 120 seconds.

The hang is because of a 3 way dead-lock:

Process A holds the recovery mutex, and waits for eehd to complete.
Process B holds the semaphore and waits for the recovery mutex.
eehd waits for semaphore.

The fix is to have Process B above release the semaphore before
attempting to acquire the recovery mutex. This will allow
eehd to proceed to completion.

Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: rework resp_report_luns
Douglas Gilbert [Sun, 1 May 2016 02:44:43 +0000 (22:44 -0400)]
scsi_debug: rework resp_report_luns

Based on "[PATH V2] scsi_debug: rework resp_report_luns" patch
sent by Tomas Winkler on Thursday, 26 Feb 2015. His notes:
  1. Remove duplicated boundary checks which simplify the fill-in
     loop
  2. Use more of scsi generic API
Replace fixed length response array a with heap allocation
allowing up to 256 normal LUNs per target.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: use pdt constants
Douglas Gilbert [Sun, 1 May 2016 02:44:42 +0000 (22:44 -0400)]
scsi_debug: use pdt constants

Use TYPE_* constants for SCSI peripheral device types instead of
numbers. Further cleanups requested by checkpatch.pl.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoqla1280: Don't allocate 512kb of host tags
Johannes Thumshirn [Wed, 27 Apr 2016 08:48:52 +0000 (10:48 +0200)]
qla1280: Don't allocate 512kb of host tags

The qla1280 driver sets the scsi_host_template's can_queue field to 0xfffff
which results in an allocation failure when allocating the block layer tags
for the driver's queues. This was introduced with the change for host wide
tags in commit 64d513ac31b - "scsi: use host wide tags by default".

Reduce can_queue to MAX_OUTSTANDING_COMMANDS (512) to solve the allocation
error.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: 64d513ac31b - "scsi: use host wide tags by default"
Cc: stable@vger.kernel.org # v4.4
Cc: Laura Abbott <labbott@redhat.com>
Cc: Michael Reed <mdr@sgi.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
8 years agoscsi_dh_alua: uninitialized variable in alua_rtpg()
Dan Carpenter [Thu, 14 Apr 2016 18:20:34 +0000 (21:20 +0300)]
scsi_dh_alua: uninitialized variable in alua_rtpg()

It's possible to use "err" without initializing it.  If it happens to be
a 2 which is SCSI_DH_RETRY then that could cause a bug.  Bart Van Assche
pointed out that we should probably re-initialize it for every iteration
through the retry loop.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
8 years agoscsi_debug: use likely hints on fast path
Douglas Gilbert [Mon, 25 Apr 2016 16:16:34 +0000 (12:16 -0400)]
scsi_debug: use likely hints on fast path

The most common commands in normal use are the READ and WRITE SCSI
commands. Use likely and unlikely hints along the path taken by these
commands. Rename check_readiness() to make_ua() and remove associated
dead code. Rename devInfoReg() to find_build_dev_info().

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: re-order file scope declarations
Douglas Gilbert [Mon, 25 Apr 2016 16:16:33 +0000 (12:16 -0400)]
scsi_debug: re-order file scope declarations

Group most defines together first; followed by struct definitions and
then table and variable definitions. Normalize all function headers.

[mkp: Corrected hex value in WP/DPOFUA MODE SENSE comment]

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: replace tasklet with work queue
Douglas Gilbert [Mon, 25 Apr 2016 16:16:32 +0000 (12:16 -0400)]
scsi_debug: replace tasklet with work queue

When a negative value was placed in the delay parameter, a tasklet was
scheduled. Change the tasklet to a work queue. Previously a delay of -1
scheduled a high priority tasklet; since there are no high priority work
queues, treat -1 like other negative values in delay and schedule a work
item.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: make jiffy delay name clearer
Douglas Gilbert [Mon, 25 Apr 2016 16:16:31 +0000 (12:16 -0400)]
scsi_debug: make jiffy delay name clearer

Add 'j' to delay names to make it clearer that its unit is jiffies and
to differentiate it from sdebug_ndelay whose unit is nanoseconds.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: replace jiffy timers with hr timers
Douglas Gilbert [Mon, 25 Apr 2016 16:16:30 +0000 (12:16 -0400)]
scsi_debug: replace jiffy timers with hr timers

The driver supports two command delay interfaces, the original one whose
unit is a jiffy, and a newer one whose unit is a nanosecond. Each had
different implementations.  Keep both interfaces but simplify the
implemenation to use a single delay mechanism based on high resolution
timers.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: ignore host lock option
Douglas Gilbert [Mon, 25 Apr 2016 16:16:29 +0000 (12:16 -0400)]
scsi_debug: ignore host lock option

Remove logic to optionally hold host_lock while each command is
queued. Keep module and sysfs host_lock parameters for backward
compatibility. Note in module parameter description that host_lock is
ignored.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_debug: cleanup naming and bit crunching
Douglas Gilbert [Mon, 25 Apr 2016 16:16:28 +0000 (12:16 -0400)]
scsi_debug: cleanup naming and bit crunching

Shorten file scope static and constant names. Use more
get/put_unaligned calls to hide bit banging. Introduce
sdebug_verbose boolean to replace frequent masking of
option bit flags. Add GPL and bump version.

[mkp: Use logical instead of bitwise OR for LBP VPD flags]

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: update driver version
Don Brace [Wed, 27 Apr 2016 22:14:26 +0000 (17:14 -0500)]
hpsa: update driver version

Reviewed-by: Gerry Morong <gerry.morong@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: correct handling of HBA device removal
Don Brace [Wed, 27 Apr 2016 22:14:17 +0000 (17:14 -0500)]
hpsa: correct handling of HBA device removal

Need to report HBA device removal faster than the
event handler polling interval.

Stop I/O to the removed disk and wait for all
I/O operations to flush before removing the device.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: correct ioaccel2 error procecssing.
Don Brace [Wed, 27 Apr 2016 22:14:07 +0000 (17:14 -0500)]
hpsa: correct ioaccel2 error procecssing.

set offload_to_be_enabled to 0 when an ioaccel2 error is processed.

Before, an ioaccel completion error would turn of ioaccel but a rescan
would turn it back on again.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: correct ioaccel state change operation
Don Brace [Wed, 27 Apr 2016 22:13:59 +0000 (17:13 -0500)]
hpsa: correct ioaccel state change operation

offload_to_be_enabled also needs to be set to 0 during a state
change.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: add timeouts for driver initiated commands
Don Brace [Wed, 27 Apr 2016 22:13:51 +0000 (17:13 -0500)]
hpsa: add timeouts for driver initiated commands

faulty drives can cause the driver to hang during a
scan operation.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: add sas_address to sysfs device attibute
Joseph T Handzik [Wed, 27 Apr 2016 22:13:33 +0000 (17:13 -0500)]
hpsa: add sas_address to sysfs device attibute

There have been companies requesting a sysfs entry
to obtain the sas address of device.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: correct initialization order issue
Don Brace [Wed, 27 Apr 2016 22:13:26 +0000 (17:13 -0500)]
hpsa: correct initialization order issue

The driver was calling scsi_scan_host before enabling interrupts.

This has gone unnoticed except for customers running in intx mode.
Calling scsi_scan_host before interrupts are enabled causes
"irq XX: nobody cared" messages and the driver to hang.

This patch enables interrupts before the call to scsi_scan_host.

Reported-by: Piotr Karbowski <piotr.karbowski@gmail.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Update driver version
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:32:44 +0000 (23:32 -0700)]
aacraid: Update driver version

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Fix for KDUMP driver hang
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:32:37 +0000 (23:32 -0700)]
aacraid: Fix for KDUMP driver hang

When KDUMP is triggered the driver first talks to the firmware in INTX
mode, but the adapter firmware is still in MSIX mode. Therefore the first
driver command hangs since the driver is waiting for an INTX response and
firmware gives a MSIX response. If when the OS is installed on a RAID
drive created by the adapter KDUMP will hang since the driver does not
receive a response in sync mode.

Fixed by: Change the firmware to INTX mode if it is in MSIX mode before
sending the first sync command.

Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Remove code to needlessly complete fib
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:32:26 +0000 (23:32 -0700)]
aacraid: Remove code to needlessly complete fib

Currently driver completes double completed or spurious interrupted fibs.
This  is not necessary and causes the SCSI mid layer to issue aborts and
resets, since completing a fib  prematurely might trigger a race condition
resulting in the driver not calling the scsi_done callback.

Fixed by removing the call to fib complete.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Log firmware AIF messages
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:32:09 +0000 (23:32 -0700)]
aacraid: Log firmware AIF messages

Firmware AIF messages about cache loss and data recovery are being missed
by the driver since currently they are not captured but rather let go.
This patch to capture those messages and log them for the user.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Fix for aac_command_thread hang
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:31:57 +0000 (23:31 -0700)]
aacraid: Fix for aac_command_thread hang

Typically under error conditions, it is possible for aac_command_thread()
to miss the wakeup from kthread_stop() and go back to sleep, causing it
to hang aac_shutdown.

In the observed scenario, the adapter is not functioning correctly and so
aac_fib_send() never completes (or time-outs depending on how it was
called). Shortly after aac_command_thread() starts it performs
aac_fib_send(SendHostTime) which hangs. When aac_probe_one
/aac_get_adapter_info send time outs, kthread_stop is called which breaks
the command thread out of it's hang.

The code will still go back to sleep in schedule_timeout() without
checking kthread_should_stop() so it causes aac_probe_one to hang until
the schedule_timeout() which is 30 minutes.

Fixed by: Adding another kthread_should_stop() before schedule_timeout()
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Disable MSI mode for series 6, 7, 8 cards
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:31:43 +0000 (23:31 -0700)]
aacraid: Disable MSI mode for series 6, 7, 8 cards

As the firmware for series 6, 7, 8 cards does not support msi, remove it
in the driver

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Relinquish CPU during timeout wait
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:31:26 +0000 (23:31 -0700)]
aacraid: Relinquish CPU during timeout wait

aac_fib_send has a special function case for initial commands during
driver initialization using wait < 0(pseudo sync mode). In this case,
the command does not sleep but rather spins checking for timeout.This
loop is calls cpu_relax() in an attempt to allow other processes/threads
to use the CPU, but this function does not relinquish the CPU and so the
command will hog the processor. This was observed in a KDUMP
"crashkernel" and that prevented the "command thread" (which is
responsible for completing the command from being timed out) from
starting because it could not get the CPU.

Fixed by replacing "cpu_relax()" call with "schedule()"
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Start adapter after updating number of MSIX vectors
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:31:12 +0000 (23:31 -0700)]
aacraid: Start adapter after updating number of MSIX vectors

The adapter has to be started after updating the number of MSIX Vectors

Fixes: ecc479e00db8 (aacraid: Set correct MSIX count for EEH recovery)
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Fix incorrectly named MACRO
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:31:03 +0000 (23:31 -0700)]
aacraid: Fix incorrectly named MACRO

Suggested-by: Seymour, Shane M <shane.seymour@hpe.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoaacraid: Removed unnecessary checks for NULL
Raghava Aditya Renukunta [Tue, 26 Apr 2016 06:30:55 +0000 (23:30 -0700)]
aacraid: Removed unnecessary checks for NULL

Current driver checks for NULL return from aac_fib_alloc_tag, but it not
possible for it to return NULL.

Fixed by: Remove all the checks for NULL returns from aac_fib_alloc_tag

Suggested-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomptsas: fix checks for dma mapping errors
Alexey Khoroshilov [Fri, 15 Apr 2016 23:12:29 +0000 (02:12 +0300)]
mptsas: fix checks for dma mapping errors

mptsas_smp_handler() checks for dma mapping errors by comparison
returned address with zero, while pci_dma_mapping_error() should be
used.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoMAINTAINERS: Update the file list for the NCR 5380 entry
Finn Thain [Sat, 23 Apr 2016 02:20:07 +0000 (12:20 +1000)]
MAINTAINERS: Update the file list for the NCR 5380 entry

The file atari_NCR5380.c has been removed from the tree so remove it
from the MAINTAINERS file as well.

While we are here, add the file dtc3x80.txt as it is only relevant to
the dtc driver.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agost: clear ILI if Medium Error
Kai Makisara [Mon, 18 Apr 2016 05:47:18 +0000 (08:47 +0300)]
st: clear ILI if Medium Error

Some drives set the ILI flag together with MEDIUM ERROR sense code.
Clear the ILI flag in this case so that the medium error will be
handled.  The problem was reported by Maurizio Lombardi.

Signed-off-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agolpfc: remove incorrect lockdep assertion
Sebastian Herbszt [Sun, 17 Apr 2016 11:27:27 +0000 (13:27 +0200)]
lpfc: remove incorrect lockdep assertion

Remove incorrect lockdep assertion from lpfc_sli_hbqbuf_find() which
acquires the hbalock itself. Fix the comment which resulted in this
mistake.

Fixes: 1c2ba475eb0e ("lpfc: Add lockdep assertions")
Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agobnx2i: silence uninitialized variable warnings
Dan Carpenter [Thu, 14 Apr 2016 09:40:06 +0000 (12:40 +0300)]
bnx2i: silence uninitialized variable warnings

Presumably it isn't possible to have empty lists here, but my static
checker doesn't know that and complains that "ep" can be used
uninitialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohpsa: set the enclosure identifier to zero
Dan Carpenter [Thu, 14 Apr 2016 09:37:44 +0000 (12:37 +0300)]
hpsa: set the enclosure identifier to zero

This has only called from show_sas_rphy_enclosure_identifier().  The
caller expects that we set an identifier, otherwise it uses an
uninitialized variable.

[mkp: fixed typo]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas - remove unused fw_event_work elements
Joe Lawrence [Mon, 18 Apr 2016 14:50:12 +0000 (10:50 -0400)]
mpt3sas - remove unused fw_event_work elements

Firmware events are queued up using the fw_event_work's struct work, not
its delayed_work member.  The initial driver for SAS2 controllers had
handled firmware reset using the rescan barrier and was later redesigned
through "mpt2sas: [Resend] Host Reset code cleanup".  The delayed_work
variables are now unused and may provoke CONFIG_DEBUG_OBJECTS_TIMERS
"assert_init not available" false warnings in
_scsih_fw_event_cleanup_queue.

Cleanup fw_event_work's unused entries, update its kerneldoc, and
update _scsih_fw_event_cleanup_queue accordingly.

Fixes: 146b16c8071f (mpt3sas: Refcount fw_events and fix unsafe list usage)
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoLinux 4.6-rc4
Linus Torvalds [Mon, 18 Apr 2016 02:13:32 +0000 (19:13 -0700)]
Linux 4.6-rc4

8 years agoMerge tag 'dm-4.6-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Sun, 17 Apr 2016 19:30:06 +0000 (12:30 -0700)]
Merge tag 'dm-4.6-fix-2' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fix from Mike Snitzer:
 "Fix for earlier 4.6-rc4 stable@ commit that introduced improper use of
  write lock in cmd_read_lock() -- due to cut-n-paste gone awry (and
  sparse didn't catch it)"

* tag 'dm-4.6-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache metadata: fix cmd_read_lock() acquiring write lock

8 years agodm cache metadata: fix cmd_read_lock() acquiring write lock
Ahmed Samy [Sun, 17 Apr 2016 05:37:09 +0000 (05:37 +0000)]
dm cache metadata: fix cmd_read_lock() acquiring write lock

Commit 9567366fefdd ("dm cache metadata: fix READ_LOCK macros and
cleanup WRITE_LOCK macros") uses down_write() instead of down_read() in
cmd_read_lock(), yet up_read() is used to release the lock in
READ_UNLOCK().  Fix it.

Fixes: 9567366fefdd ("dm cache metadata: fix READ_LOCK macros and cleanup WRITE_LOCK macros")
Cc: stable@vger.kernel.org
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
8 years agoMerge tag 'char-misc-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 17 Apr 2016 03:59:06 +0000 (20:59 -0700)]
Merge tag 'char-misc-4.6-rc4' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Here are some small char/misc driver fixes for 4.6-rc4.  Full details
  are in the shortlog, nothing major here.

  These have all been in linux-next for a while with no reported issues"

* tag 'char-misc-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  lkdtm: do not leak free page on kmalloc failure
  lkdtm: fix memory leak of base
  lkdtm: fix memory leak of val
  extcon: palmas: Drop stray IRQF_EARLY_RESUME flag

8 years agoMerge tag 'driver-core-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 17 Apr 2016 03:53:50 +0000 (20:53 -0700)]
Merge tag 'driver-core-4.6-rc4' of git://git./linux/kernel/git/gregkh/driver-core

Pull misc fixes from Greg KH:
 "Here are three small fixes for 4.6-rc4.

  Two fix up some lz4 issues with big endian systems, and the remaining
  one resolves a minor debugfs issue that was reported.

  All have been in linux-next with no reported issues"

* tag 'driver-core-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  lib: lz4: cleanup unaligned access efficiency detection
  lib: lz4: fixed zram with lz4 on big endian machines
  debugfs: Make automount point inodes permanently empty

8 years agoMerge tag 'usb-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 17 Apr 2016 03:48:14 +0000 (20:48 -0700)]
Merge tag 'usb-4.6-rc4' of git://git./linux/kernel/git/gregkh/usb

Pull USB driver fixes from Greg KH:
 "Here are some small USB fixes for 4.6-rc4.

  Mostly xhci fixes for reported issues, a UAS bug that has hit a number
  of people, including stable tree users, and a few other minor things.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: hcd: out of bounds access in for_each_companion
  USB: uas: Add a new NO_REPORT_LUNS quirk
  USB: uas: Limit qdepth at the scsi-host level
  doc: usb: Fix typo in gadget_multi documentation
  usb: host: xhci-plat: Make enum xhci_plat_type start at a non zero value
  xhci: fix 10 second timeout on removal of PCI hotpluggable xhci controllers
  usb: xhci: fix wild pointers in xhci_mem_cleanup
  usb: host: xhci-plat: fix cannot work if R-Car Gen2/3 run on above 4GB phys
  usb: host: xhci: add a new quirk XHCI_NO_64BIT_SUPPORT
  xhci: resume USB 3 roothub first
  usb: xhci: applying XHCI_PME_STUCK_QUIRK to Intel BXT B0 host
  cdc-acm: fix crash if flushed with nothing buffered

8 years agoMerge tag 'dmaengine-fix-4.6-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sat, 16 Apr 2016 22:52:38 +0000 (15:52 -0700)]
Merge tag 'dmaengine-fix-4.6-rc4' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "This time we have some odd fixes in hsu, edma, omap and xilinx.

  Usual fixes and nothing special"

* tag 'dmaengine-fix-4.6-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dw: fix master selection
  dmaengine: edma: special case slot limit workaround
  dmaengine: edma: Remove dynamic TPTC power management feature
  dmaengine: vdma: don't crash when bad channel is requested
  dmaengine: omap-dma: Do not suppress interrupts for memcpy
  dmaengine: omap-dma: Fix polled channel completion detection and handling
  dmaengine: hsu: correct use of channel status register
  dmaengine: hsu: correct residue calculation of active descriptor
  dmaengine: hsu: set HSU_CH_MTSR to memory width

8 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 16 Apr 2016 22:43:19 +0000 (15:43 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fixlet from Ingo Molnar:
 "Fixes a build warning on certain Kconfig combinations"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Fix print_collision() unused warning

8 years agoMerge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 16 Apr 2016 22:37:05 +0000 (15:37 -0700)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull EFI fix from Ingo Molnar:
 "An arm64 boot crash fix"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm64: Don't apply MEMBLOCK_NOMAP to UEFI memory map mapping

8 years agoMerge branch 'fix/edma' into fixes
Vinod Koul [Sat, 16 Apr 2016 17:22:03 +0000 (22:52 +0530)]
Merge branch 'fix/edma' into fixes

8 years agoMerge branch 'fix/xilinx' into fixes
Vinod Koul [Sat, 16 Apr 2016 17:15:26 +0000 (22:45 +0530)]
Merge branch 'fix/xilinx' into fixes

8 years agoMerge branch 'fix/omap' into fixes
Vinod Koul [Sat, 16 Apr 2016 17:15:17 +0000 (22:45 +0530)]
Merge branch 'fix/omap' into fixes

8 years agoMerge branch 'fix/hsu' into fixes
Vinod Koul [Sat, 16 Apr 2016 17:14:32 +0000 (22:44 +0530)]
Merge branch 'fix/hsu' into fixes

8 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 15 Apr 2016 22:44:10 +0000 (15:44 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes for the current series. This contains:

   - Two fixes for NVMe:

     One fixes a reset race that can be triggered by repeated
     insert/removal of the module.

     The other fixes an issue on some platforms, where we get probe
     timeouts since legacy interrupts isn't working.  This used not to
     be a problem since we had the worker thread poll for completions,
     but since that was killed off, it means those poor souls can't
     successfully probe their NVMe device.  Use a proper IRQ check and
     probe (msi-x -> msi ->legacy), like most other drivers to work
     around this.  Both from Keith.

   - A loop corruption issue with offset in iters, from Ming Lei.

   - A fix for not having the partition stat per cpu ref count
     initialized before sending out the KOBJ_ADD, which could cause user
     space to access the counter prior to initialization.  Also from
     Ming Lei.

   - A fix for using the wrong congestion state, from Kaixu Xia"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: loop: fix filesystem corruption in case of aio/dio
  NVMe: Always use MSI/MSI-x interrupts
  NVMe: Fix reset/remove race
  writeback: fix the wrong congested state variable definition
  block: partition: initialize percpuref before sending out KOBJ_ADD

8 years agoMerge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdim...
Linus Torvalds [Fri, 15 Apr 2016 22:34:27 +0000 (15:34 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Ross Zwisler:
 "Two fixes:

   - Fix memcpy_from_pmem() to fallback to memcpy() for architectures
     where CONFIG_ARCH_HAS_PMEM_API=n.

   - Add a comment explaining why we write data twice when clearing
     poison in pmem_do_bvec().

  This has passed a boot test on an X86_32 config, which was the
  architecture where issue #1 above was first noticed"

Dan Williams adds:
 "We're giving this multi-maintainer setup a shot, so expect libnvdimm
  pull requests from either Ross or I going forward"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm, pmem: clarify the write+clear_poison+write flow
  pmem: fix BUG() error in pmem.h:48 on X86_32

8 years agoMerge tag 'for-linus-20160415' of git://git.infradead.org/linux-mtd
Linus Torvalds [Fri, 15 Apr 2016 22:25:09 +0000 (15:25 -0700)]
Merge tag 'for-linus-20160415' of git://git.infradead.org/linux-mtd

Pull MTD fix from Brian Norris:
 "One MTD fix for v4.6-rc4:

  In the v4.4 cycle, we relaxed the requirement for assigning
  mtd->owner, but we didn't remove this error case.  It's hit only
  by drivers that are both:

   (a) using nand_scan() directly
  and
   (b) built as modules

  We haven't seen explicit complaints about this (most use cases don't
  fit one or both of the above), but we should definitely not be
  BUG()'ing here"

* tag 'for-linus-20160415' of git://git.infradead.org/linux-mtd:
  mtd: nand: Drop mtd.owner requirement in nand_scan

8 years agoMerge tag 'mmc-v4.6-rc3' of git://git.linaro.org/people/ulf.hansson/mmc
Linus Torvalds [Fri, 15 Apr 2016 22:10:32 +0000 (15:10 -0700)]
Merge tag 'mmc-v4.6-rc3' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here are a couple of mmc fixes intended for v4.6 rc4.

  Regarding the fix for the regression about mmcblk device indexes.  The
  approach taken to solve the problem seems to be good enough.  There
  were some discussions around the solution, but it seems like people
  were happy about it in the end.

  MMC core:
   - Restore similar old behaviour when assigning mmcblk device indexes

  MMC host:
   - tegra: Disable UHS-I modes for Tegra124 to fix regression"

* tag 'mmc-v4.6-rc3' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: tegra: Disable UHS-I modes for Tegra124
  mmc: block: Use the mmc host device index as the mmcblk device index

8 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 15 Apr 2016 21:59:28 +0000 (14:59 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "This contains fixes for exynos, amdgpu, radeon, i915 and qxl.

  It also contains some fixes to the core drm edid parser.

  qxl:
   - fix for a cursor hotspot issue

  radeon:
   - some MST fixes that I've been running locally and make my monitor a
     bit happier

  exynos:
   - fix some regressions and build fixes

  amdgpu:
   - a couple of small fixes

  i915:
   - two DP MST fixes and a couple of other regression fixes

  Nothing too out of the ordinary or surprising at this point"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/exynos: Use VIDEO_SAMSUNG_S5P_G2D=n as G2D Kconfig dependency
  drm/exynos: fix a warning message
  drm/exynos: mic: fix an error code
  drm/exynos: fimd: fix broken dp_clock control
  drm/exynos: build fbdev code conditionally
  drm/exynos: fix adjusted_mode pointer in exynos_plane_mode_set
  drm/exynos: fix error handling in exynos_drm_subdrv_open
  drm/amd/amdgpu: fix irq domain remove for tonga ih
  drm/i915: fix deadlock on lid open
  drm/radeon: use helper for mst connector dpms.
  drm/radeon/mst: port some MST setup code from DAL.
  drm/amdgpu: add invisible pin size statistic
  drm/edid: Fix DMT 1024x768@43Hz (interlaced) timings
  drm/i915: Exit cherryview_irq_handler() after one pass
  drm/i915: Call intel_dp_mst_resume() before resuming displays
  drm/i915: Fix race condition in intel_dp_destroy_mst_connector()
  drm/edid: Fix parsing of EDID 1.4 Established Timings III descriptor
  drm/edid: Fix EDID Established Timings I and II
  drm/qxl: fix cursor position with non-zero hotspot

8 years agoMerge branch 'parisc-4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Fri, 15 Apr 2016 21:51:45 +0000 (14:51 -0700)]
Merge branch 'parisc-4.6-4' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc ftrace fixes from Helge Deller:
 "This is (most likely) the last pull request for v4.6 for the parisc
  architecture.

  It fixes the FTRACE feature for parisc, which is horribly broken since
   quite some time and doesn't even compile.  This patch just fixes the
  bare minimum (it actually removes more lines than it adds), so that
  the function tracer works again on 32- and 64bit kernels.

  I've queued up additional patches on top of this patch which e.g. add
  the syscall tracer, but those have to wait for the merge window for
  v4.7."

* 'parisc-4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix ftrace function tracer

8 years agolibnvdimm, pmem: clarify the write+clear_poison+write flow
Dan Williams [Fri, 15 Apr 2016 02:40:47 +0000 (19:40 -0700)]
libnvdimm, pmem: clarify the write+clear_poison+write flow

The ACPI specification does not specify the state of data after a clear
poison operation.  Potential future libnvdimm bus implementations for
other architectures also might not specify or disagree on the state of
data after clear poison.  Clarify why we write twice.

Reported-by: Jeff Moyer <jmoyer@redhat.com>
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
8 years agohisi_sas: add alloc_dev_quirk_v2_hw()
John Garry [Fri, 15 Apr 2016 13:36:38 +0000 (21:36 +0800)]
hisi_sas: add alloc_dev_quirk_v2_hw()

Add custom version of function to allocate device,
alloc_dev_quirk_v2_hw().  For sata devices the device id bit0 should be
0.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: add slot_index_alloc_quirk_v2_hw()
John Garry [Fri, 15 Apr 2016 13:36:37 +0000 (21:36 +0800)]
hisi_sas: add slot_index_alloc_quirk_v2_hw()

Add v2 hw custom function slot_index_alloc_quirk_v2_hw().  SAS devices
should have IPTT bit0 equal to 1.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: add device and slot alloc hw methods
John Garry [Fri, 15 Apr 2016 13:36:36 +0000 (21:36 +0800)]
hisi_sas: add device and slot alloc hw methods

Add methods to use HW specific versions of functions to allocate slot
and device.  HW specific methods are permitted to workaround device id
vs IPTT collision issue in v2 hw.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomegaraid_sas: driver version upgrade
Sumit Saxena [Fri, 15 Apr 2016 07:23:33 +0000 (00:23 -0700)]
megaraid_sas: driver version upgrade

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomegaraid_sas: task management code optimizations
Sumit Saxena [Fri, 15 Apr 2016 07:23:32 +0000 (00:23 -0700)]
megaraid_sas: task management code optimizations

This patch will do code optmization for task management functions.
Below are key changes:

1. Remove reset_device hook as it was not being used and driver was
setting this to NULL.

2. Create wrapper functions for task abort and target reset and inside
   these functions adapter specific calls be made. e.g. fusion adapters
   support task abort and target reset so task abort and target reset
   should be issued to fusion adapters only and for MFI adapters, print
   a message saying feature not supported.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomegaraid_sas: call ISR function to clean up pending replies in OCR path
Sumit Saxena [Fri, 15 Apr 2016 07:23:31 +0000 (00:23 -0700)]
megaraid_sas: call ISR function to clean up pending replies in OCR path

In OCR path, before calling chip reset calls function
megasas_wait_for_outstanding_fusion to check reason for OCR. In case of
firmware FAULT initiated OCR and DCMD timeout initiated timeout, driver
will clear any outstanding reply (yet to be processed by driver) in
reply queues before going for chip reset. This code is added to handle a
scenario when IO timeout initiated adapter reset and management
application initiated adapter reset (by sending command to FAULT
firmware) happens simultaneously since adapter reset function is
safe-guarded by reset_mutex so only thread will be doing controller
reset. Consider IO timeout thread gets mutex and proceeds with adapter
reset process after disabling interrupts and by the time management
application has fired command to firmware to do adapter reset and the
same command is completed by firmware but since interrupts are disabled,
driver will not get completion and the same command will be in
outstanding/pending commands list of driver and refires same command
from IO timeout thread after chip reset which will again FAULT firmware
and eventually causes kill adapter.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomegaraid_sas: reduce memory footprints in kdump mode
Sumit Saxena [Fri, 15 Apr 2016 07:23:30 +0000 (00:23 -0700)]
megaraid_sas: reduce memory footprints in kdump mode

This patch will reduce memory footprints of megaraid_sas driver when
booted in kdump mode.  Driver will not allocate memory for optional and
perfromance oriented features.  Below are key changes done in
megaraid_sas driver to do this:

1. Limit Controller's queue depth to 100 in kdump mode.

2. Do not allocate memory for system info buffer and PD info buffer.

3. Disable performance oriented features e.g. Disable RDPQ mode, disable
   dual queue depth, restrict to single MSI-x vector.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi_dh_alua: Declare local functions static
Bart Van Assche [Thu, 14 Apr 2016 17:27:14 +0000 (10:27 -0700)]
scsi_dh_alua: Declare local functions static

This patch avoids that building with W=1 causes gcc to report the
following type of warning:

    no previous prototype for ... [-Wmissing-prototypes]

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ewan Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agompt3sas: Remove usage of 'struct timeval'
Tina Ruchandani [Wed, 13 Apr 2016 07:01:40 +0000 (00:01 -0700)]
mpt3sas: Remove usage of 'struct timeval'

'struct timeval' will have its tv_sec value overflow on 32-bit systems
in year 2038 and beyond. This patch replaces the use of struct timeval
for computing mpi_request.TimeStamp, and instead uses ktime_t which
provides 64-bit seconds value. The timestamp computed remains
unaffected (milliseconds since Unix epoch).

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Sathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agopm80xx: Remove bogus address masking in pm8001_ioremap()
David Daney [Wed, 13 Apr 2016 21:26:56 +0000 (14:26 -0700)]
pm80xx: Remove bogus address masking in pm8001_ioremap()

It is unclear what the original intent of the masking was, but it is
clearly incorrect to truncate a physical address before calling
ioremap().  On systems where there are valid physical address bits above
bit-31 (arm64 for example) the result is an eventual OOPs when
initializing the driver.

Remove the bogus code to fix it.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoqla2xxx: Remove use of 'struct timeval'
Tina Ruchandani [Mon, 25 Jan 2016 22:00:20 +0000 (23:00 +0100)]
qla2xxx: Remove use of 'struct timeval'

struct register_host_info stores a 64-bit UTC system time timestamp.
This patch removes the use of 'struct timeval' to obtain that timestamp
as its tv_sec value will overflow on 32-bit systems in year 2038 beyond.
The patch uses ktime_get_real_seconds() which returns a 64-bit seconds value.

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: update driver version to 1.4
John Garry [Fri, 8 Apr 2016 09:23:15 +0000 (17:23 +0800)]
hisi_sas: update driver version to 1.4

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: for v2 hw only set ITCT qw2 for SAS device
John Garry [Fri, 8 Apr 2016 09:23:14 +0000 (17:23 +0800)]
hisi_sas: for v2 hw only set ITCT qw2 for SAS device

This patch fixes the ITCT table setup as it should be configured
differently for SAS and SATA devices.  For SATA disks there is no need
to set qw2 (already zeroed).  Also, link parameters for Bus inactive
limit, max connection time limit, and reject to open limit timers
parameters are changed to match global config register,
MAX_CON_TIME_LIMIT_TIME, as recommended by hw team.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: add v2 hw support for >4 SATA phys
John Garry [Fri, 8 Apr 2016 09:23:13 +0000 (17:23 +0800)]
hisi_sas: add v2 hw support for >4 SATA phys

This patch adds support for directly attaching SATA disks to phy
4-8. The problem was that only registers concerned with phy 0-3 were
being considered in sata_int_v2_hw().  The issue was not detected
previously as the development board only exposed phy 0-3; the new board
provides access to 8 phys.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: fix v2 hw multiple SATA disk issue
John Garry [Fri, 8 Apr 2016 09:23:12 +0000 (17:23 +0800)]
hisi_sas: fix v2 hw multiple SATA disk issue

Intermittently it is found that when multiple SATA disks are directly
connected to the host that some disks are not detected.  The problem is
that all set bitfields in ENT_INT_SRC1 are cleared for all phys in
sata_int_v2_hw() - it should clear the set bit for the phy being
serviced.

Also unnecessary double-write to ENT_INT_SRC1 and ENT_INT_SRC_MSK1 is
removed (remaining writes are done at end label).

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agohisi_sas: use device linkrate in MCR for v2 hw
John Garry [Fri, 8 Apr 2016 09:23:11 +0000 (17:23 +0800)]
hisi_sas: use device linkrate in MCR for v2 hw

Contrary to the field name, the MCR (max connection rate) in the ITCT
should hold the device linkrate (linkrate of the connected phy), and not
the max linkrate.

This fixes an issue seen where some SATA drives connected through an
expander which would not attach.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agolib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c
Ming Lin [Mon, 4 Apr 2016 21:48:11 +0000 (14:48 -0700)]
lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c

Now it's ready to move the mempool based SG chained allocator code from
SCSI driver to lib/sg_pool.c, which will be compiled only based on a Kconfig
symbol CONFIG_SG_POOL.

SCSI selects CONFIG_SG_POOL.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi: rename SCSI_MAX_{SG, SG_CHAIN}_SEGMENTS
Ming Lin [Mon, 4 Apr 2016 21:48:10 +0000 (14:48 -0700)]
scsi: rename SCSI_MAX_{SG, SG_CHAIN}_SEGMENTS

Rename SCSI_MAX_SG_SEGMENTS to SG_CHUNK_SIZE, which means the amount
we fit into a single scatterlist chunk.

Rename SCSI_MAX_SG_CHAIN_SEGMENTS to SG_MAX_SEGMENTS.

Will move these 2 generic definitions to scatterlist.h later.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Bart Van Assche <bart.vanassche@sandisk.com> (for ib_srp changes)
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi: rename SG related struct and functions
Ming Lin [Mon, 4 Apr 2016 21:48:09 +0000 (14:48 -0700)]
scsi: rename SG related struct and functions

Rename SCSI specific struct and functions to more genenic names.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Sagi Grimberg <sgi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi: replace "mq" with "first_chunk" in SG functions
Ming Lin [Mon, 4 Apr 2016 21:48:08 +0000 (14:48 -0700)]
scsi: replace "mq" with "first_chunk" in SG functions

Parameter "bool mq" is block driver specific.
Change it to "first_chunk" to make it more generic.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agoscsi: replace "scsi_data_buffer" with "sg_table" in SG functions
Ming Lin [Mon, 4 Apr 2016 21:48:07 +0000 (14:48 -0700)]
scsi: replace "scsi_data_buffer" with "sg_table" in SG functions

Replace parameter "struct scsi_data_buffer" with "struct sg_table" in
SG alloc/free functions to make them generic.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agozfcp: Revert to original scanning behaviour
Hannes Reinecke [Fri, 8 Apr 2016 06:14:54 +0000 (08:14 +0200)]
zfcp: Revert to original scanning behaviour

zfcp has its own mechanism for selective scanning, so revert to the
original scanning behaviour to not confuse users.

Fixes: 4e91e876e9b8b6eb4255aa0d690778a89d3f1d28
Suggested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agomvsas: Generalize Marvell 9485 in pci_device_id
Leonid Moiseichuk [Thu, 7 Apr 2016 18:52:25 +0000 (21:52 +0300)]
mvsas: Generalize Marvell 9485 in pci_device_id

Claim Marvell 9485 controllers regardless of subdevice ID.

Tested on ASUS P9A-I/C2550/SAS/4L which uses vendor-specific 1043:8635.

[mkp: Tweaked commit message]

Signed-off-by: Leonid Moiseichuk <leonid.moiseichuk@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agobnx2fc: Update version number to 2.10.3.
Chad Dupuis [Thu, 7 Apr 2016 13:08:00 +0000 (09:08 -0400)]
bnx2fc: Update version number to 2.10.3.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agobnx2fc: Check sc_cmd device and host pointer before returning the command to the...
Chad Dupuis [Thu, 7 Apr 2016 13:07:59 +0000 (09:07 -0400)]
bnx2fc: Check sc_cmd device and host pointer before returning the command to the mid-layer.

When we are in connection recovery and the internal command timer on a
request pops, either the scsi_cmnd->device or scsi_cmnd->device->host
back pointers may be NULL as the device that the command that the
request was submitted on may have been subsequently reaped due to the
connection recovery. This can cause one or both of the pointers above to
be NULL and cause a system crash if we try to return the command to the
midlayer.

Instead, double check the pointers before the return to the midlayer so
as to prevent the crash and let the upper layers finish the session
recovery and rediscover the device.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
8 years agobnx2fc: Print netdev device name when FCoE is successfully initialized.
Chad Dupuis [Thu, 7 Apr 2016 13:07:58 +0000 (09:07 -0400)]
bnx2fc: Print netdev device name when FCoE is successfully initialized.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>