Cong WANG wrote:
Hi, list!

I have a question about coding style in linux kernel. In
Documention/CodingStyle, it is said that "Linux style for comments is
the C89 "/* ... */" style. Don't use C99-style "// ..." comments."
_But_ I see a lot of '//' style comments in current kernel code.

Which is wrong? The documentions or the code, or neither? And why?

The code.. As with a lot of coding style issues, it's likely just that nobody saw it and bothered to complain when it went in.

Another question is about NULL. AFAIK, in user space, using NULL is
better than directly using 0 in C. In kernel, I know it used its own
NULL, which may be defined as ((void*)0), but it's _still_ different
from raw zero. So can I say using NULL is better than 0 in kernel?

It's the preferred style, Sparse will complain about using 0 for a null pointer for example..

--
Robert Hancock      Saskatoon, SK, Canada
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