CHECK: spinlock_t definition without comment
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
WARNING: line length of 84 exceeds 80 columns
WARNING: line length of 86 exceeds 80 columns
WARNING: line length of 91 exceeds 80 columns
WARNING: line length of 95 exceeds 80 columns
WARNING: line length of 99 exceeds 80 columns