dmaengine: idxd: Use list_move_tail instead of list_del/list_add_tail

mainline inclusion
from mainline-v5.16
commit ee5c6f0c
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO
CVE: NA

Intel-SIG: commit ee5c6f0c dmaengine: idxd: Use list_move_tail instead of list_del/list_add_tail.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

--------------------------------

Using list_move_tail() instead of list_del() + list_add_tail()
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NBixuan Cui <cuibixuan@huawei.com>
Acked-by: NDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20210908092826.67765-1-cuibixuan@huawei.comSigned-off-by: NVinod Koul <vkoul@kernel.org>
Signed-off-by: NXiaochen Shen <xiaochen.shen@intel.com>

drivers/dma/idxd/irq.c

@@ -221,8 +221,7 @@ static void irq_process_work_list(struct idxd_irq_entry *irq_entry)
 
 	list_for_each_entry_safe(desc, n, &irq_entry->work_list, list) {
 		if (desc->completion->status) {
-			list_del(&desc->list);
-			list_add_tail(&desc->list, &flist);
+			list_move_tail(&desc->list, &flist);
 		}
 	}