diff options
author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-05-14 19:05:49 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-14 22:11:14 -0400 |
commit | 3fc957721d18c93662f7d4dab455b80f53dd2641 (patch) | |
tree | 9bdbabf3cb3678edcd0e0e4beb5deaa5c1b17bcd /include/linux | |
parent | 122a881c776b7c155bf3f379928cc27aab435288 (diff) |
lib: create common ascii hex array
Add a common hex array in hexdump.c so everyone can use it.
Add a common hi/lo helper to avoid the shifting masking that is
done to get the upper and lower nibbles of a byte value.
Pull the pack_hex_byte helper from kgdb as it is opencoded many
places in the tree that will be consolidated.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/kernel.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 4d46e299afb5..792bf0aa779b 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h | |||
@@ -276,7 +276,17 @@ extern void print_hex_dump(const char *level, const char *prefix_str, | |||
276 | const void *buf, size_t len, bool ascii); | 276 | const void *buf, size_t len, bool ascii); |
277 | extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type, | 277 | extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type, |
278 | const void *buf, size_t len); | 278 | const void *buf, size_t len); |
279 | #define hex_asc(x) "0123456789abcdef"[x] | 279 | |
280 | extern const char hex_asc[]; | ||
281 | #define hex_asc_lo(x) hex_asc[((x) & 0x0f)] | ||
282 | #define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] | ||
283 | |||
284 | static inline char *pack_hex_byte(char *buf, u8 byte) | ||
285 | { | ||
286 | *buf++ = hex_asc_hi(byte); | ||
287 | *buf++ = hex_asc_lo(byte); | ||
288 | return buf; | ||
289 | } | ||
280 | 290 | ||
281 | #define pr_emerg(fmt, arg...) \ | 291 | #define pr_emerg(fmt, arg...) \ |
282 | printk(KERN_EMERG fmt, ##arg) | 292 | printk(KERN_EMERG fmt, ##arg) |