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0f6335451d
Previously the TX and RX queues were being accessed from two different locations without locking, which is wrong. This moves the access to a single location in a deffered hook and calls that hook from the old locations. The result is correct, simpler, and not much slower. It also reduces time in the USB interrupt handler by moving the memcpy from packet to queue out to the deferred hook. Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=make buildall -j Verify that USB streams still work on Ryu and discovery-stm32f072 Change-Id: I6ea53d7c40b42c6112e86a7886f3b888408f72b7 Reviewed-on: https://chromium-review.googlesource.com/264763 Tested-by: Anton Staaf <robotboy@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Anton Staaf <robotboy@chromium.org> Trybot-Ready: Anton Staaf <robotboy@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit