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@xxxxxxxxxxx>
---
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
--
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