In message: <[EMAIL PROTECTED]>
Hans Petter Selasky <[EMAIL PROTECTED]> writes:
: So can someone have this fixed, or is there a reason not to fix it. The one
: who wrote the code has done the same mistake with every one of the
: bus_space_XXXX that does memory mapped I/O. It currently breaks my drivers.
One isn't supposed to call these routines with count == 0. One could
say your drivers are broken :-)
Back when these were written, small optimizations like this were made
to make things go faster. Now that cache sizes are bigger, a few
extra instructions likely wouldn't affect things too much. Best to
measure the effects of your proposed changes on real workloads...
Warner
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