Re: Calling module functions from the kernel proper

[David Woodhouse]

[e-mail] said:
> > What is the best way to go about calling a kernel module's function(s)
> > from within the kernel itself?

> Sorry, I did not get it.

> What should happen if the kernel wants to call a function of your
> module and the module is not loaded yet???

int do_myroutine()
{
	int (*myroutine_ptr)(void) = NULL;
	int ret;

	myroutine_ptr = get_module_symbol("", "myroutine");

	if (!myroutine_ptr) {
		request_module("mymodule");
		myroutine_ptr = get_module_symbol("", "myroutine");
	}

	if (!myroutine_ptr)
		return -EINVAL;

	ret = (*myroutine_ptr)();

	put_module_symbol(myroutine_ptr);

	return ret;
}

--
dwmw2