[RFC v3 1/2] dynamic debug: add dynamic_hexdump_debug macro
From: Bing Zhao <hidden>
Date: 2011-03-02 01:21:27
Also in:
lkml
Subsystem:
dynamic debug, the rest · Maintainers:
Jason Baron, Jim Cromie, Linus Torvalds
dynamic_hexdump_debug(str, buf, len) str: "prefix string" buf: buffer pointer len: length of the buffer being printed Signed-off-by: Bing Zhao <redacted> --- v3: use "str" as prefix string (Joe Perches) v2: rebase against linux-next.git tree and split into 2 patches include/linux/dynamic_debug.h | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 0c9653f..06a7fed 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h@@ -70,6 +70,17 @@ 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)) \ + print_hex_dump_bytes(str, DUMP_PREFIX_OFFSET, buf, len);\ +} while (0) + #else static inline int ddebug_remove_module(const char *mod)
@@ -81,6 +92,9 @@ 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) print_hex_dump_bytes(str, DUMP_PREFIX_OFFSET, \ + buf, len); } while (0) #endif #endif
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1.6.2.5