From: Hannes Reinecke <hare@suse.de>
Date: Thu, 4 Jan 2018 04:57:02 -0800
Subject: [PATCH] scsi: mpt3sas: use list_splice_init()
References: bsc#1081917
Git-commit: 05303dfb738066ad597d7feb422ff9fa2d3d8ef3
Patch-mainline: v4.16-rc1

Use 'list_splice_init()' instead of hand-crafted function.  No
functional change.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 449a58ed2901..4225ac67193c 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2888,20 +2888,13 @@ mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
 	unsigned long flags;
 	int i;
-	struct chain_tracker *chain_req, *next;
 
 	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
 	if (smid < ioc->hi_priority_smid) {
 		/* scsiio queue */
 		i = smid - 1;
-		if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
-			list_for_each_entry_safe(chain_req, next,
-			    &ioc->scsi_lookup[i].chain_list, tracker_list) {
-				list_del_init(&chain_req->tracker_list);
-				list_add(&chain_req->tracker_list,
-				    &ioc->free_chain_list);
-			}
-		}
+		list_splice_init(&ioc->scsi_lookup[i].chain_list,
+				 &ioc->free_chain_list);
 		ioc->scsi_lookup[i].cb_idx = 0xFF;
 		ioc->scsi_lookup[i].scmd = NULL;
 		ioc->scsi_lookup[i].direct_io = 0;
-- 
2.12.3