CHECK: Please use a blank line after function/struct/union/enum declarations
CHECK: struct mutex definition without comment
WARNING: line length of 81 exceeds 80 columns
WARNING: line length of 84 exceeds 80 columns
WARNING: line length of 85 exceeds 80 columns
WARNING: line length of 87 exceeds 80 columns
WARNING: line length of 90 exceeds 80 columns
WARNING: line length of 98 exceeds 80 columns
WARNING: please, no space before tabs