Kernel prepatch 4.3-rc1

Linus has released 4.3-rc1 and closed the4.3 merge window one day ahead of the usual schedule. "I decidedthat I'm not interested in catering to anything that comes in tomorrow, andI might as well just close the merge window and do the -rc1release." In the end, 10,756 non-merge changesets were pulledduring this merge window.