Hartmut, Oliver and Trent: Thanks for helping with this issue. I've just
reverted the changeset. We still need a fix at dm1105, au0828-dvb and maybe
other drivers that call the filtering routines inside IRQ's.
Fix the demux, add a worker thread and allow drivers to call it directly.
I'm not a big fan of videobuf_dvb or having each driver do it's own thing as an
alternative.
Fixing the demux... Would this require and extra buffer copy? probably, but it's
a trade-off between the amount of spent during code management on a driver by
driver basis vs wrestling with videobuf_dvb and all of problems highlighted on
the ML over the last 2 years.
demux->register_driver()
demux->deliver_payload()
demux->unregister_driver()
Then deprecate sw_filter....N() methods.
That would simplify drivers significantly, at the expense of another buffer copy
while deliver-payload() clones the buffer into its internal state to be more timely.
- Steve
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