Just out of interest, do we really want to to avoid C99 ? I know there is this implicit "kernel style" coding rule, does it include C99 ?
seems to be just kernel style and not really related to C99.
Documentation/CodingStyle Linux style for comments is the C89 "/* ... */" style. Don't use C99-style "// ..." comments.
The main advantage here is that a consistent commenting style helps readability IMO. When doing kernel code, I use '//' only for private TODO-areas, because it sticks out so much :)
Regards,
Wolfram