Hi Yong Thank you so much for your contribution! I have comments in general. 1. for a patch set, you need a cover letter for the series. 2. If a patch is to fix a bug/issue, the title should start with 'fix'. 3. A 'Fixes:' line is needed for any bug fixes. 4. A 'Cc:' line is needed, if the patch should be back ported into any stable release version. 5. you can find some good examples from the 'git log'.
Thanks! Regards, Helin
