netfilter: nft_meta: refactor deprecated strncpy

Prefer `strscpy_pad` to `strncpy`.
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>

net/netfilter/nft_meta.c

@@ -185,12 +185,12 @@ static noinline bool nft_meta_get_eval_kind(enum nft_meta_keys key,
 	case NFT_META_IIFKIND:
 		if (!in || !in->rtnl_link_ops)
 			return false;
-		strncpy((char *)dest, in->rtnl_link_ops->kind, IFNAMSIZ);
+		strscpy_pad((char *)dest, in->rtnl_link_ops->kind, IFNAMSIZ);
 		break;
 	case NFT_META_OIFKIND:
 		if (!out || !out->rtnl_link_ops)
 			return false;
-		strncpy((char *)dest, out->rtnl_link_ops->kind, IFNAMSIZ);
+		strscpy_pad((char *)dest, out->rtnl_link_ops->kind, IFNAMSIZ);
 		break;
 	default:
 		return false;
@@ -206,7 +206,7 @@ static void nft_meta_store_ifindex(u32 *dest, const struct net_device *dev)
 
 static void nft_meta_store_ifname(u32 *dest, const struct net_device *dev)
 {
-	strncpy((char *)dest, dev ? dev->name : "", IFNAMSIZ);
+	strscpy_pad((char *)dest, dev ? dev->name : "", IFNAMSIZ);
 }
 
 static bool nft_meta_store_iftype(u32 *dest, const struct net_device *dev)