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Having a transfer more than 32 bits is not all that unlikely. Remove the annotation. The unlikely in the IRQ handler can't gain us much. It's not in a loop, so at most it would save 1 instruction per IRQ, which isn't much. In fact on the compiler I tested it produced the exact same code. Remove it too. Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>