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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>
This commit is contained in:
Simon Glass 2016-06-19 19:43:03 -06:00 committed by Tom Rini
parent 6b424611a8
commit 5e7f743324
1 changed files with 2 additions and 0 deletions
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2
include/common.h
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@ -101,6 +101,7 @@ 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
@ -116,6 +117,7 @@ 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)