On Sat, Nov 05, 2005 at 10:10:27AM +0000, Russell King wrote:
> It's probably better to use a union with these, eg:
>
> union {
> void __user *arg;
> struct watchdog_info __user *info;
> int __user *i;
> } u;
>
> u.arg = (void __user *)arg;
>
> ...
>
> ret = copy_to_user(u.info, &ident, sizeof(ident)) ? -EFAULT : 0;
Just use void __user *.
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