CHECK: No space is necessary after a cast
WARNING: From:/Signed-off-by: email address mismatch: 'From: Menglong Dong <menglong8.dong@gmail.com>' != 'Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>'
WARNING: line length of 87 exceeds 80 columns
WARNING: line length of 88 exceeds 80 columns
WARNING: line length of 95 exceeds 80 columns