Hi Valdis That makes sense :) Moving the module to the kernel makes it work. Thanks Arjun On Thu, Sep 25, 2014 at 5:57 PM, <Valdis.Kletnieks@xxxxxx> wrote: > On Thu, 25 Sep 2014 10:49:33 +0530, Arjun Pandey said: > >> Step 1 goes through fine. The module gets compiled fine. >> However now when i try to compile the kernel i get linker error of >> undefined reference to the function exported from the kernel module. >> >> I can't find any documentation on this usecase. > > In general, things that are built-into the kernel with CONFIG_FOO=y > are *not* allowed or able to reference symbols that are in a module. > > This is because a module can potentially not be loaded (consider system > boot before you're up far enough to do a modprobe, as an important > special case), at which point trying to call the non-existent module > gets you an oops or panic. > > So you can't find any doc on it because it's not supported. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
