On Sun, Aug 02, 2015 at 10:56:38AM +0300, Matan Barak wrote:

Indeed this design flaw was introduced when the first legacy verb was
extended. I think that falling back from extended code to legacy code
should be in the uverbs code. ib_uverbs_write will return -ENOSYS only
if both extended and non-extended don't exist. The uverbs command itself
will call the non-extended form if the comp_mask is zero and all
data between legacy size and the given size are zero as well.
What do you think?

Yes, that is what I had expected from day 1.. Didn't notice it in the
first introduction.

Thanks,
Jason
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