1TODO:
2- checkpatch.pl fixes
3- fix device drivers that are broken ("depends on BROKEN" in Kconfig)
4- tidy-up comments:
5  - there are some "//comments" and "// comments" scattered around
6  - sometimes they are misaligned
7  - sometimes "// comments" are interleaved with "/* comments */"
8  - multiline comments should start with initial almost-blank line:
9    /*
10     * Good
11     * multiline
12     * comment
13     */
14    /* Bad
15     * multiline
16     * comment
17     */
18- resolve XXX notes where possible
19- fix FIXME notes
20- clean-up commented-out code
21- fix typos
22