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| author | Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> | 2010-04-01 13:40:58 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-04-30 19:50:22 +0200 |
| commit | 5a2e3995951176e1aaa63d17ae2e1d26ac99003d (patch) | |
| tree | 7305a7dc2c1822e5d4fec610d1c9bb6ddfadce70 /kernel/trace/trace_output.c | |
| parent | [SCSI] Add missing scsi command definitions (diff) | |
| download | linux-5a2e3995951176e1aaa63d17ae2e1d26ac99003d.tar.xz linux-5a2e3995951176e1aaa63d17ae2e1d26ac99003d.zip | |
[SCSI] ftrace: add __print_hex()
__print_hex() prints values in an array in hex (w/o '0x') (space separated)
EX) 92 33 32 f3 ee 4d
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 8e46b3323cdc..7c4a0ca650b5 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -355,6 +355,21 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val, } EXPORT_SYMBOL(ftrace_print_symbols_seq); +const char * +ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len) +{ + int i; + const char *ret = p->buffer + p->len; + + for (i = 0; i < buf_len; i++) + trace_seq_printf(p, "%s%2.2x", i == 0 ? "" : " ", buf[i]); + + trace_seq_putc(p, 0); + + return ret; +} +EXPORT_SYMBOL(ftrace_print_hex_seq); + #ifdef CONFIG_KRETPROBES static inline const char *kretprobed(const char *name) { |