liquidio: use list_empty_careful in lio_list_delete_head

geliangtang · davem330 · commit b8483ecaf72e · 2020-06-28T21:46:33.000-07:00
Use list_empty_careful() instead of open-coding.

Signed-off-by: Geliang Tang &lt;geliangtang@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_network.h b/drivers/net/ethernet/cavium/liquidio/octeon_network.h
@@ -612,7 +612,7 @@ static inline struct list_head *lio_list_delete_head(struct list_head *root)
 {
 	struct list_head *node;
 
-	if (root->prev == root && root->next == root)
+	if (list_empty_careful(root))
 		node = NULL;
 	else
 		node = root->next;

Original file line number	Diff line number	Diff line change
`@@ -612,7 +612,7 @@ static inline struct list_head lio_list_delete_head(struct list_head root)`
`612`	`612`	`{`
`613`	`613`	`struct list_head *node;`
`614`	`614`
`615`		`- if (root->prev == root && root->next == root)`
	`615`	`+ if (list_empty_careful(root))`
`616`	`616`	`node = NULL;`
`617`	`617`	`else`
`618`	`618`	`node = root->next;`