linux-kernel - exported module symbols and warnings

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Message-ID: <35a82d00610161135t3d65bf2ei46631e69bf6f7f12@mail.gmail.com>
Date:	Mon, 16 Oct 2006 11:35:13 -0700
From:	"Scott Baker" <smbaker@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: exported module symbols and warnings

Hello,

I'm developing a pair of kernel modules. One module needs to export a
symbol that will be used by the second module. I'm doing this by using
EXPORT_SYMBOL(MySymbol) in the first module and declaring the symbol
as extern in the second module. It works fine.

However, there are a couple of warnings that I'm trying to clean up.
The first is when building the second module (the one that uses the
symbol). It is: "*** Warning: "MySymbol" [filename] undefined!"

The second warning occurs when insmod'ing the second module. It is:
"no version for "MySymbol" found: kernel tainted."

Can someone point me in the right direction? The modules are behaving
fine, but the warning messages are a bit unsightly.

I'm running RHEL4, kernel version 2.6.9-42.

Thanks,
Scott
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