[PATCH net-next] netfilter: nft_set_pipapo: Use struct_size()

[Christophe JAILLET]

Use struct_size() instead of hand writing it.
This is less verbose and more informative.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
It will also help scripts when __counted_by macro will be added.
See [1].

[1]: https://lore.kernel.org/all/6453f739.170a0220.62695.7785@xxxxxxxxxxxxx/
---
 net/netfilter/nft_set_pipapo.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c
index 06d46d182634..bf290cb53c76 100644
--- a/net/netfilter/nft_set_pipapo.c
+++ b/net/netfilter/nft_set_pipapo.c
@@ -1274,8 +1274,7 @@ static struct nft_pipapo_match *pipapo_clone(struct nft_pipapo_match *old)
 	struct nft_pipapo_match *new;
 	int i;
 
-	new = kmalloc(sizeof(*new) + sizeof(*dst) * old->field_count,
-		      GFP_KERNEL);
+	new = kmalloc(struct_size(new, f, old->field_count), GFP_KERNEL);
 	if (!new)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.34.1