linux-kernel - Re: sparc oops in ip_fast

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Date:	Sun, 6 Jan 2008 01:57:13 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>
cc:	Al Viro <viro@...IV.linux.org.uk>, m.kozlowski@...land.pl,
	davem@...emloft.net, sparclinux@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: sparc oops in ip_fast_csum


On Jan 6 2008 11:22, Herbert Xu wrote:
>@@ -271,6 +271,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
> 	int hh_len;
> 	struct iphdr *iph;
> 	struct sk_buff *skb;
>+	unsigned int iphlen;
> 	int err;
> 
> 	if (length > rt->u.dst.dev->mtu) {
>@@ -304,7 +305,8 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
> 		goto error_fault;
> 
> 	/* We don't modify invalid header */
>-	if (length >= sizeof(*iph) && iph->ihl * 4U <= length) {
>+	iphlen = iph->ihl * 4;
>+	if (iphlen >= sizeof(*iph) && iphlen <= length) {

Humm, this could use ip_hdrlen(skb) :-)
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