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

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Date:	Wed, 23 Apr 2008 19:24:18 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	vapier@...too.org
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] linux/atm_tcp.h: cleanup for userspace

From: Mike Frysinger <vapier@...too.org>
Date: Sat, 19 Apr 2008 23:22:34 -0400

> The atm_tcp.h uses types from linux/atm.h, but does not include it.  It
> should also use the standard __u## types from linux/types.h rather than the
> uint##_t types since the former can be found with the kernel already.
> 
> Signed-off-by: Mike Frysinger <vapier@...too.org>

I don't think this is a sufficient patch to solve these problems.

> @@ -8,10 +8,8 @@
>  #define LINUX_ATM_TCP_H
>  
>  #include <linux/atmapi.h>
> -
> -#ifdef __KERNEL__
>  #include <linux/types.h>
> -#endif
> +#include <linux/atm.h>
>  #include <linux/atmioc.h>
>  
>  

So you're adding linux/atm.h as an include for non-kernel, fine,
but:

> @@ -20,9 +18,9 @@
>   */
>  
>  struct atmtcp_hdr {
> -	uint16_t	vpi;
> -	uint16_t	vci;
> -	uint32_t	length;		/* ... of data part */
> +	__u16	vpi;
> +	__u16	vci;
> +	__u32	length;		/* ... of data part */
>  };
>  
>  /*

Well, linux/atm.h, which we'll now get, has the same exact problem,
it uses "uint16_t" and related types.

Futehermore, nothing in the include chain will get linux/types.h
include, which we'll need.  linux/atm.h protects the inclusion
of linux/types.h with __KERNEL__.
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