2008/7/18 Robert P. J. Day <[EMAIL PROTECTED]>:
>
> from <linux/compiler.h>:
>
> extern void __chk_user_ptr(const volatile void __user *);
> extern void __chk_io_ptr(const volatile void __iomem *);
>
> ok, so ... where are those routines defined? i've grep'ped and i
> don't see the definitions. am i missing something?
They are not defined, this is a trick to take an error at compile
time, where there is probably an if(sizeof(something) > {1,2,4,8}).
-br
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