CHECK: Lines should not end with a '('
CHECK: Please don't use multiple blank lines
CHECK: Please use a blank line after function/struct/union/enum declarations
CHECK: Prefer kernel type 'u32' over 'uint32_t'
ERROR: code indent should use tabs where possible
WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
WARNING: please, no spaces at the start of a line
WARNING: space prohibited between function name and open parenthesis '('