Re: [PATCH 1/1] [net/irda]: Fix a misalign access issue.

[David Miller]

From: "Yang, Graf" <Graf.Yang@xxxxxxxxxx>
Date: Tue, 13 May 2008 12:07:35 +0800

> I have tried
> struct irda_device_info {
>         __u32       saddr;    /* Address of local interface */
>         __u32       daddr;    /* Address of remote device */
>         char        info[22]; /* Description */
>         __u8        charset;  /* Charset used for description */
>         __u8        reserve;  /* For align data */ 
>         __u8        hints[2]; /* Hint bits */
> };
> 
> It works with my irda driver. Can I modify it like this?

This header file and the irda_device_info datastructure are exported
to, and used by, userspace.

Therefore you cannot change this structure's layout without breaking
every single existing IRDA binary out there.
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