On Sun, Aug 20, 2017 at 09:24:09AM +0100, Okash Khawaja wrote:
> Hi,
>
> Is there a way to load a kernel module from another module and pass
> parameters to it? Something like
>
> request_module("mymod param1=val1");
I think this is exactly what you are looking for:
from include/linux/kmod.h
#define request_module(mod...) __request_module(true, mod)
and from kernel/kmod.c
/**
* __request_module - try to load a kernel module
* @wait: wait (or not) for the operation to complete
* @fmt: printf style format string for the name of the module
* @...: arguments as specified in the format string
*
* Load a module using the user mode module loader. The function returns
* zero on success or a negative errno code or positive exit code from
* "modprobe" on failure. Note that a successful module load does not mean
* the module did not then unload and exit on an error of its own. Callers
* must check that the service they requested is now available not blindly
* invoke it.
*
* If module auto-loading support is disabled then this function
* becomes a no-operation.
*/
int __request_module(bool wait, const char *fmt, ...)
In normal situtations, you just call exported functions from another
kernel module. Module order and dependencies between these modules are
handled by depmod at module installation time, as far as I know.
>
> Thanks,
> Okash
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