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scsi: hisi_sas: only zero slot memory when reused 

Currently the slot memory is zeroed when it is freed and also when it is
reused, like in hisi_sas_task_prep(). Optimise by avoiding the redundant
zeroing in the free.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2016-09-06 23:36:14 +08:00 committed by Martin K. Petersen
parent f1dc358408
commit 59ba49f9d6
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -97,7 +97,7 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
slot->task = NULL;
slot->port = NULL;
hisi_sas_slot_index_free(hisi_hba, slot->idx);
memset(slot, 0, sizeof(*slot));
/* slot memory is fully zeroed when it is reused */
}
EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free);