I can only answer #1. "Acked-by" is a normal (in English) way to say
"Acknowledged by". This is perhaps the first stage so that people to
later pull know that Linaro has seen the change and that they are
looking it over. The "Tested-By" is the same. Neither of this is a
normal git function. I would
Hie experts,
see below commit:
commit abb959f8a3f125a6e6641abbd020111516dfc8f6
Author: Javi Merino
Date: Fri Dec 16 16:04:36 2011 +0100
ARM: 7237/1: PL330: Fix driver freeze
Add a req_running field to the pl330_thread to track which request (if
any) has been submitted to the DMA.