RDMA/hfi1: Use list_for_each_entry() helper

Convert list_for_each() to list_for_each_entry() so that the pos list_head
pointer and list_entry() call are no longer needed, which can
reduce a few lines of code. No functional changed.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230822033539.3692453-1-ruanjinjie@huawei.com
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: ruanjinjie-eng

drivers/infiniband/hw/hfi1/affinity.c

@@ -230,11 +230,9 @@ static void node_affinity_add_tail(struct hfi1_affinity_node *entry)
 /* It must be called with node_affinity.lock held */
 static struct hfi1_affinity_node *node_affinity_lookup(int node)
 {
-	struct list_head *pos;
 	struct hfi1_affinity_node *entry;
 
-	list_for_each(pos, &node_affinity.list) {
-		entry = list_entry(pos, struct hfi1_affinity_node, list);
+	list_for_each_entry(entry, &node_affinity.list, list) {
 		if (entry->node == node)
 			return entry;
 	}