On Tue, Aug 29, 2006 at 11:32:05AM -0700, Zach Brown wrote:
> Like it or not, the sys_io_submit() interface returns -EINVAL when the
> file descriptor doesn't support the requested command. Changing the
> binary interface is a big deal and should not be done lightly. What is
> the motivation for making this change?
-EOPNOTSUPP also gives the wrong error message, as it is a networking
error. Any program which knows that it is submitting a correctly filled
in set of parameters can deduce the reason for the -EINVAL. Changing it
otherwise would result in behaviour outside of that specified in the man
page (which lists reasons for the -EINVAL result).
-ben
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