Macro explanation

On Sun, Mar 11, 2012 at 9:40 PM, Mandeep Sandhu
[off-list ref] wrote:

On Mon, Mar 12, 2012 at 1:03 AM, Vijay Chauhan [off-list ref] wrote:

quoted

On Sat, Mar 10, 2012 at 12:10 AM, Manohar Vanga [off-list ref] wrote:

quoted

Also, from the
archives:?http://www.mail-archive.com/kernelnewbies at 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