You can follow the kernel C source better if you have a good idea of the GCC C extensions. It is used pretty much everywhere in the kernel. http://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html Regards, Pavan -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ