CHECK: struct mutex definition without comment
WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
WARNING: From:/Signed-off-by: email address mismatch: 'From: Ming Yu <a0282524688@gmail.com>' != 'Signed-off-by: Ming Yu <tmyu0@nuvoton.com>'
WARNING: line length of 83 exceeds 80 columns