netdev - Re: [PATCH][RFC] tcp: fix ambiguity in the `before' relation

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Date:	Wed, 20 Dec 2006 20:01:00 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Gerrit Renker <gerrit@....abdn.ac.uk>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH][RFC] tcp: fix ambiguity in the `before' relation

On Thu, Dec 14, 2006 at 03:07:06PM +0000, Gerrit Renker wrote:
> diff --git a/include/net/tcp.h b/include/net/tcp.h
> index c99774f..b7d8317 100644
> --- a/include/net/tcp.h
> +++ b/include/net/tcp.h
> @@ -242,14 +242,9 @@ extern int tcp_memory_pressure;
>  
>  static inline int before(__u32 seq1, __u32 seq2)
>  {
> -        return (__s32)(seq1-seq2) < 0;
> +        return (__s32)(seq2-seq1) > 0;
>  }
> -
> -static inline int after(__u32 seq1, __u32 seq2)
> -{
> -	return (__s32)(seq2-seq1) < 0;
> -}
> -
> +#define after(seq2, seq1) 	before(seq1, seq2)

Btw, these macfox/inlines are named quite a bit too generic for
something that is in tcp.h

-
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