On Thu, Mar 21, 2002 at 03:54:04AM +0000, Babu Rajagopal wrote: > when i'm going through the linux src for net drivers, > i found a strange line of code. > > i wanted to register a bottom half handler for the net > irq. > > in net/profiles.h, there is a function called > net_profile_register and some other functions. > > this was declared as extern inline void > net_profile_register. > > i could'nt understand what extern inline void means. IIRC it means "don't bother you stupid compiler, I know what I am doing and I want this function inlined at all cost". I can't be wrong however, so please check the gcc info files for a proper explanation. > when i use this function in my driver(of course using > the macro NET_PROFILE_REGISTER), while insmod, it says > net_profile_register unresolved external symbol. This is a FAQ. Compile your driver with -O2 or inline functions won't get inlined. Erik -- J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty of Information Technology and Systems, Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl WWW: http://www-ict.its.tudelft.nl/~erik/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
