On Wed, Jul 08, 2015 at 03:11:36AM +0300, Dmitry V. Levin wrote: > On Mon, Jul 06, 2015 at 04:40:24PM +0200, Gabriel Laskar wrote: > > On Mon, 6 Jul 2015 12:35:52 +0200, Patrik Jakobsson wrote: > > > On Fri, Jul 03, 2015 at 03:36:09AM +0300, Dmitry V. Levin wrote: [...] > > > > Maybe it's time to deal with this issue in a more generic way. [...] > > Anyway, SYS_FUNC(ioctl) is a bit complicated, and the handling of the > > fallbacks on failure should be more generic. > > What would be useful is a way for "on entering" parsers to return > "done with decoding" information to their callers. > > This could be implemented by or'ing return value in the current semantics > with a flag with "done with decoding" meaning, e.g. RVAL_DONE. > > If an ioctl parser returned RVAL_DONE, this would tell SYS_FUNC(ioctl) > that the decoding is finished but fallback decoding is needed, while > RVAL_DONE+1 would mean that the decoding is finished and no fallback > decoding is needed.
I've pushed this and other related changes along with some usage examples. -- ldv
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