[RFC v2 2/2] printk: add hexdump_debug macro

[Bing Zhao]

hexdump_debug(str, buf, len)

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

usage:
hexdump_debug("mwifiex data: tx_buf:\n", tx_buf, 32);

Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
 include/linux/printk.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index ee048e7..c758131 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -299,4 +299,18 @@ static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 
 #endif
 
+#if defined(DEBUG)
+#define hexdump_debug(str, buf, len) \
+do {									\
+	printk(KERN_DEBUG str);						\
+	print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len);		\
+} while (0)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
+#define hexdump_debug(str, buf, len) \
+	dynamic_hexdump_debug(str, buf, len)
+#else
+#define hexdump_debug(str, buf, len) \
+	no_printk(KERN_DEBUG str)
+#endif
+
 #endif
-- 
1.6.2.5

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