3.4.75
3.4.76
3.4.77
3.4.78
3.4.79
3.4.80
3.4.81
3.4.82
Merge commit '1e2ccc199156a7e6b77ab0968844181ff571f6f5' into jelly_3.4
Merge commit '2b4da5a718d4ee1338c96c5bc9248a6e8e115e38' into jelly_3.4
Merge commit 'acb01b0d13bb2e022703f171fd0f836afa50fc8d' into jelly_3.4
Merge commit '8b9ea239d2074aeb6790c3651515cccd5c7c3fda' into jelly_3.4
Merge commit 'c872e3c2b7887be6247b63ff9943b6af8c3934a5' into jelly_3.4
Merge commit '2bea37f42b3684b6887a77ac6d827e938c60e4ec' into jelly_3.4

Conflicts:
	kernel/sched/fair.c
Merge commit '197e2b67277a8de61d693d3dacb9db629d3d34f3' into jelly_3.4
Merge commit 'f2b7006a6955a87813b681126397f0d81d4c42ce' into jelly_3.4
cleanup code and drop unexisted in official checks