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Date:	Wed, 15 Oct 2008 13:37:18 +0100
From:	Ben Hutchings <>
To:	Steven Whitehouse <>
	Christine Caulfield <>
Subject: Re: decnet: Fix complier warning

On Wed, 2008-10-15 at 13:19 +0100, Steven Whitehouse wrote:
> This patch fixes a warning seen during compiling dn_dev.c. The warning is harmless
> since we know that the structure length in question is less than 2^32 bytes, but
> this fixes it anyway.
> Signed-off-by: Steven Whitehouse <>
> Cc: Christine Caulfield <>
> diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
> index 2f0ac3c..d9bc69c 100644
> --- a/net/decnet/dn_dev.c
> +++ b/net/decnet/dn_dev.c
> @@ -152,7 +152,7 @@ static struct dn_dev_parms dn_dev_list[] =  {
>  #define DN_DEV_LIST_SIZE ARRAY_SIZE(dn_dev_list)
> -#define DN_DEV_PARMS_OFFSET(x) ((int) ((char *) &((struct dn_dev_parms *)0)->x))
> +#define DN_DEV_PARMS_OFFSET(x) ((long) ((char *) &((struct dn_dev_parms *)0)->x))

Or you could make this use offsetof().  Daring, I know, it's only been a
standard macro for nearly 20 years.


Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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