lkml.org 
[lkml]   [2011]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC v2 1/2] dynamic debug: add dynamic_hexdump_debug macro
Date
dynamic_hexdump_debug(str, buf, len)

str: "subject string"
buf: buffer pointer
len: length of the buffer being printed

Signed-off-by: Bing Zhao <bzhao@marvell.com>
---
include/linux/dynamic_debug.h | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 0c9653f..429a176 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -70,6 +70,19 @@ extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \
} while (0)

+#define dynamic_hexdump_debug(str, buf, len) \
+do { \
+ static struct _ddebug descriptor \
+ __used \
+ __attribute__((section("__verbose"), aligned(8))) = \
+ { KBUILD_MODNAME, __func__, __FILE__, str, __LINE__, \
+ _DPRINTK_FLAGS_DEFAULT }; \
+ if (unlikely(descriptor.enabled)) { \
+ printk(KERN_DEBUG str); \
+ print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \
+ } \
+} while (0)
+
#else

static inline int ddebug_remove_module(const char *mod)
@@ -81,6 +94,15 @@ static inline int ddebug_remove_module(const char *mod)
do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
#define dynamic_dev_dbg(dev, fmt, ...) \
do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0)
+
+#define dynamic_hexdump_debug(str, buf, len) \
+do { \
+ if (0) { \
+ printk(KERN_DEBUG str); \
+ print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \
+ } \
+} while (0)
+
#endif

#endif
--
1.6.2.5


\
 
 \ /
  Last update: 2011-03-01 06:07    [from the cache]
©2003-2011 Jasper Spaans