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Subjectioctl32_unregister_conversion & modules

...what is the problem?

It seems that function pointers into modules do not need any special
treatmeant [I *know* there was talk about this on l-k; but I can't
find anything in Documentation/]:

if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (disk->fops->ioctl) {
ret = disk->fops->ioctl(inode, file, cmd, arg);
if (ret != -EINVAL)
return ret;

So... what's the problem with {un}register_ioctl32_conversion being
called from module_init/module_exit? Drivers in the tree do it
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
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