netdev - [PATCH 04/12] netfilter: nft_numgen: start round robin from zero

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Message-Id: <1478035593-1362-5-git-send-email-pablo@netfilter.org>
Date:   Tue,  1 Nov 2016 22:26:25 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 04/12] netfilter: nft_numgen: start round robin from zero

From: Liping Zhang <liping.zhang@...eadtrum.com>

Currently we start round robin from 1, but it's better to start round
robin from 0. This is to keep consistent with xt_statistic in iptables.

Signed-off-by: Liping Zhang <liping.zhang@...eadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nft_numgen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nft_numgen.c b/net/netfilter/nft_numgen.c
index 55bc5ab78d4a..a66b36097b8f 100644
--- a/net/netfilter/nft_numgen.c
+++ b/net/netfilter/nft_numgen.c
@@ -65,7 +65,7 @@ static int nft_ng_inc_init(const struct nft_ctx *ctx,
 		return -EOVERFLOW;
 
 	priv->dreg = nft_parse_register(tb[NFTA_NG_DREG]);
-	atomic_set(&priv->counter, 0);
+	atomic_set(&priv->counter, priv->modulus - 1);
 
 	return nft_validate_register_store(ctx, priv->dreg, NULL,
 					   NFT_DATA_VALUE, sizeof(u32));
-- 
2.1.4