On Thu, Sep 27, 2007 at 04:41:21PM +0400, Evgeniy Polyakov wrote:
>
> I've attached simple patch which moves checksum helpers out of
> CONFIG_NETFILTER option but still in the same linux/netfilter.h header.
> This should be enough for removing 'select NETFILTER' in your patch.
Close but no cigar :)
> diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
> index 1dd075e..6c3fb10 100644
> --- a/include/linux/netfilter.h
> +++ b/include/linux/netfilter.h
> @@ -40,6 +40,29 @@
> #endif
>
> #ifdef __KERNEL__
> +
> +static inline void nf_csum_replace4(__sum16 *sum, __be32 from, __be32 to)
> +{
> + __be32 diff[] = { ~from, to };
> +
> + *sum = csum_fold(csum_partial((char *)diff, sizeof(diff),
> ~csum_unfold(*sum)));
> +}
> +
> +static inline void nf_csum_replace2(__sum16 *sum, __be16 from, __be16 to)
> +{
> + nf_csum_replace4(sum, (__force __be32)from, (__force __be32)to);
> +}
> +
> +extern void nf_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
> + __be32 from, __be32 to, int pseudohdr);
This function won't exist if NETFILTER is off.
Cheers,
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