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mpt3sas - remove unused fw_event_work elements

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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: 146b16c807 (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>
This commit is contained in:
Joe Lawrence 2016-04-18 10:50:12 -04:00 committed by Martin K. Petersen
parent b2bdaf2bde
commit b8ac0cc78b
1 changed files with 4 additions and 6 deletions
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10
drivers/scsi/mpt3sas/mpt3sas_scsih.c
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@ -174,13 +174,13 @@ struct sense_info {
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @cancel_pending_work: flag set during reset handling
* @ioc: per adapter object
* @device_handle: device handle
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @ignore: flag meaning this event has been marked to ignore
* @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
* @event: firmware event MPI2_EVENT_XXX defined in mpi2_ioc.h
* @refcount: kref for this event
* @event_data: reply event data payload follows
*
* This object stored on ioc->fw_event_list.
@ -188,8 +188,6 @@ struct sense_info {
struct fw_event_work {
struct list_head list;
struct work_struct work;
u8 cancel_pending_work;
struct delayed_work delayed_work;
struct MPT3SAS_ADAPTER *ioc;
u16 device_handle;
@ -2804,12 +2802,12 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
/*
* Wait on the fw_event to complete. If this returns 1, then
* the event was never executed, and we need a put for the
* reference the delayed_work had on the fw_event.
* reference the work had on the fw_event.
*
* If it did execute, we wait for it to finish, and the put will
* happen from _firmware_event_work()
*/
if (cancel_delayed_work_sync(&fw_event->delayed_work))
if (cancel_work_sync(&fw_event->work))
fw_event_work_put(fw_event);
fw_event_work_put(fw_event);