On a 2.6.7 kernel, when I try to modprobe ipmi_msghandler, it fails to load
with following message:

FATAL: Error inserting ipmi_msghandler (/lib/modules/2.6.7/kernel/drivers/char/ipmi/ipmi_msghandler.ko): Invalid module format

And there is an error message in dmesg:

ipmi_msghandler: init symbol 0xa000000200058080 used in module code at a000000200031b32

What I have been able to determine is that ipmi_msghandler.c defines
ipmi_init_msghandler() as the module_init() routine and then it also calls
ipmi_init_msghandler() diretcly from couple of other places.  This does not
seem to be okay in 2.6.7 kernel.  I was able to fix this by defining a new
module_init routine which in turn calls ipmi_init_msghandler().  I also
removed __init from ipmi_init_msghandler() since it gets called from
ipmi_open() on an open of the ipmi device file.  So I would think we want
to keep ipmi_init_msghandler() around even after initialization.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>