[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>
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@ -25,6 +25,9 @@ const char *ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
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const char *ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
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const struct trace_print_flags *symbol_array);
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const char *ftrace_print_hex_seq(struct trace_seq *p,
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const unsigned char *buf, int len);
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/*
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* The trace entry - the most basic unit of tracing. This is what
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* is printed in the end as a single line in the trace output, such as:
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@ -198,6 +198,9 @@
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ftrace_print_symbols_seq(p, value, symbols); \
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})
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#undef __print_hex
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#define __print_hex(buf, buf_len) ftrace_print_hex_seq(p, buf, buf_len)
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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static notrace enum print_line_t \
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@ -355,6 +355,21 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
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}
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EXPORT_SYMBOL(ftrace_print_symbols_seq);
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const char *
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ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
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{
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int i;
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const char *ret = p->buffer + p->len;
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for (i = 0; i < buf_len; i++)
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trace_seq_printf(p, "%s%2.2x", i == 0 ? "" : " ", buf[i]);
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trace_seq_putc(p, 0);
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return ret;
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}
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EXPORT_SYMBOL(ftrace_print_hex_seq);
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#ifdef CONFIG_KRETPROBES
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static inline const char *kretprobed(const char *name)
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{
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