netdev - Re: [TCP]: Convert several length variable to unsigned.

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Date:	Fri, 21 Dec 2007 06:17:31 -0800
From:	Joe Perches <joe@...ches.com>
To:	YOSHIFUJI Hideaki /
	 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [TCP]: Convert several length variable to unsigned.

On Fri, 2007-12-21 at 16:48 +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote:
> diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
> index 93980c3..3b4169c 100644
> --- a/net/ipv6/tcp_ipv6.c
> +++ b/net/ipv6/tcp_ipv6.c
> @@ -985,7 +985,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
>  	struct tcphdr *th = tcp_hdr(skb), *t1;
>  	struct sk_buff *buff;
>  	struct flowi fl;
> -	int tot_len = sizeof(*th);
> +	unsigned int tot_len = sizeof(*th);
>  #ifdef CONFIG_TCP_MD5SIG
>  	struct tcp_md5sig_key *key;
>  #endif
> @@ -1085,7 +1085,7 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw,
>  	struct tcphdr *th = tcp_hdr(skb), *t1;
>  	struct sk_buff *buff;
>  	struct flowi fl;
> -	int tot_len = sizeof(struct tcphdr);
> +	unsigned int tot_len = sizeof(struct tcphdr);
>  	__be32 *topt;
>  #ifdef CONFIG_TCP_MD5SIG
>  	struct tcp_md5sig_key *key;

Unrelated, but perhaps tot_len should be initialized in
a consistent fashion?

I think unsigned int tot_len = sizeof(struct tcphdr); is more readable.

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