On 11/23/15 11:41 AM, Gustavo Padovan wrote:
+ - remove sw_sync, it is used only for testing/debugging and should not be
+upstreamed.
+ - port sw_sync testcases to use debugfs somehow
A quick but important nitpick:
sw_sync itself is just an in-kernel helper for creating fences, when you
don't have something like sync timeline primitives baked into your hardware.
CONFIG_SW_SYNC_USER adds the interface for creating and signaling
sw_sync objects from userspace. This is the part that's dangerous and
only intended for testing, etc.
AFAIK CONFIG_SW_SYNC_USER is the only part people have been objecting
to. I'm fine with removing it. Removing the kernel-facing side of
sw_sync would be a problem for us, since many drivers use it to create
their fences.
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