Warner Losh wrote:
> In message <[EMAIL PROTECTED]> Joe Kelsey writes:
> : I also second Terry's comment about 0x800.  There is no reason to add
> : yet more driver flags in order to "do the right thing".  The "do the
> : right thing" case should always be default and a flag (sysctl variable,
> : etc) should be used for those who want "the wrong thing".
> The main reason that it wasn't added at the time was that it was
> expensive in terms of CPU utilization, so it shouldn't be on by
> default.  There may be other reasons as well...


It was just recently added; I'd like to see it MFC'ed for 4.4,
but certainly, Kazu hasn't been slacking on 0x8000.

I personally don't see how it could be more costly in terms
of CPU, since it only invokes in the case of a desynchronized
mouse event coming in to the mouse driver: e.g. a failure case
that only triggers when there's bot a failure, and a monkey
on the other end of the mouse cable.  8-).

-- Terry

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