Macro explanation

[Manish Katiyar]

On Sun, Mar 11, 2012 at 9:40 PM, Mandeep Sandhu
<mandeepsandhu.chd at gmail.com> wrote:
> On Mon, Mar 12, 2012 at 1:03 AM, Vijay Chauhan <kernel.vijay at gmail.com> wrote:
>> On Sat, Mar 10, 2012 at 12:10 AM, Manohar Vanga <manohar.vanga at gmail.com> wrote:
>>> Also, from the
>>> archives: http://www.mail-archive.com/kernelnewbies@nl.linux.org/msg12320.html
>>
>> Thank you for links which gives good explanation.
>> But I am not able to understand the part accessing a member through
>> NULL pointer like ((size_t) &((TYPE *)0)->MEMBER)
>> How it is handled?

All you are doing is computing the address and not dereferencing it.
If you dereference it, yes it will panic. eg..

*(((size_t) &((TYPE *)0)->MEMBER)) will cause panic

-- 
Thanks -
Manish