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Re: Compiler WARNING when using exported functions ?

In the module which references the function in the other module:


modulea.c:

extern int modb_func(void);

Stuart

----- Original Message ----- From: "Curran, Dominic" <dcurran@xxxxxx>
To: "kernelnewbies" <kernelnewbies@xxxxxxxxxxxx>
Sent: Friday, February 02, 2007 11:13 AM
Subject: Compiler WARNING when using exported functions ?



I have two modules (A and B).

Modules A calls functions that B exports.

EXPORT_SYMBOL( modb_func );

This works well.

The issue is that when module A get compiled I get compiler warnings:
 CC [M] /mycode/mod_a.o
 Building modules, stage 2.
 MODPOST 1 modules
WARNING: "modb_func" [/mycode/mod_a.ko] undefined!

When I load modules B then A, everything works OK.

I know it's a minor problem but is there a way to get rid of the
compiler warning ?
Why don't I also get a warning for kernel functions like printk() ?

Thanks
dom

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--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/