[PATCH] net: sched: Use FIELD_SIZEOF directly instead of reimplementing its function

From: zhong jiang
Date: Wed Sep 19 2018 - 06:09:14 EST


FIELD_SIZEOF is defined as a macro to calculate the specified vaule. Therefore,
We prefer to use the macro rather than calculating its vaule.

Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
net/sched/cls_flower.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 4b8dd37..9aada2d 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -993,7 +993,7 @@ static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
}

#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
-#define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member))
+#define FL_KEY_MEMBER_SIZE(member) FIELD_SIZEOF(struct fl_flow_key, member)

#define FL_KEY_IS_MASKED(mask, member) \
memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
--
1.7.12.4