linux-kernel - Re: [PATCH v2] linux/uio.h: cleanup for userspace

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Message-ID: <20081229125609.GB1852@uranus.ravnborg.org>
Date:	Mon, 29 Dec 2008 13:56:09 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Mike Frysinger <vapier@...too.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] linux/uio.h: cleanup for userspace

On Mon, Dec 29, 2008 at 07:20:17AM -0500, Mike Frysinger wrote:
> Hide iov_shorten() behind __KERNEL__ since it's a prototype only.  Use the
> __inline__ form for iov_length() since it's usable by userspace.
> 
> Signed-off-by: Mike Frysinger <vapier@...too.org>
> ---
> v2
> 	- drop inline conversion stuff
> 
>  include/linux/uio.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/uio.h b/include/linux/uio.h
> index b7fe138..bd1661b 100644
> --- a/include/linux/uio.h
> +++ b/include/linux/uio.h
> @@ -52,6 +52,8 @@ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
>  	return ret;
>  }
>  
> +#ifdef __KERNEL__
>  unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);
> +#endif
>  
>  #endif

Could we rearrange stuff in this file so we only get one #ifdef __KERNEL__ / endif
pair?

	Sam
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