[U-Boot] [PATCH 3/5] Add comments for debug() and pr_fmt

Add a note to each of these so it is more obvious how they work.

Signed-off-by: Simon Glass sjg@chromium.org ---

include/common.h | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/include/common.h b/include/common.h index f9f4605..a425dd9 100644 --- a/include/common.h +++ b/include/common.h @@ -100,6 +100,7 @@ typedef volatile unsigned char vu_char; #define _DEBUG 0 #endif

+/* Define this at the top of a file to add a prefix to debug messages */ #ifndef pr_fmt #define pr_fmt(fmt) fmt #endif @@ -115,6 +116,7 @@ typedef volatile unsigned char vu_char; printf(pr_fmt(fmt), ##args); \ } while (0)

+/* Show a message if DEBUG is defined in a file */ #define debug(fmt, args...) \ debug_cond(_DEBUG, fmt, ##args)