I am writing a kernel module which do some function related to MobileIP. I
have taken the example from Linux IP Networking Guide
I have exported this test_function (EXPORT_SYMBOL()) and declared it as
extern in file linux/net/netsym.c. I have chosen CONFIG_INET location in this
file. Because i am calling these function in the IP-layer.
I am sorry if my explanation doesnt sound so good. But question in general is
that how can i link this module(test.c+Makefile) in the kernel. I have done
it as it was explained in this guide.
After compiling i get this error:
net/network.o(__ksymtab+0x4e8): undefined reference to `test_function'
make: *** [vmlinux] Error 1
Thanks advance for help,