> >  - The codec selection for the ioctl handlers should be specialized
> >    (i.e. if the previous point gets implemented, only "lbd" should
> >    be used to send ioctl data from userland to kernel).
> 
> I don't agree -- imagine you have a security bug in the default kernel
> codec, you should be able to recompile the kernel with a different one
> and have proplib just deal with it. For this to work, the kernel needs
> to expose the list of codecs it supports -- pavel@ suggested a sysctl
> with the result of prop_codec_list().
> 
> 	-- Jachym

it sounds like a misfeature to me.
if there are bugs, they should be fixed.  that's all.

YAMAMOTO Takashi