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Commit 5a2e3995 authored by Kei Tokunaga's avatar Kei Tokunaga Committed by James Bottomley
Browse files

[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: default avatarLi Zefan <lizf@cn.fujitsu.com>
Signed-off-by: default avatarTomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarKei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 59c31b69

include/linux/ftrace_event.h

+3 −0
Original line number Diff line number Diff line
@@ -25,6 +25,9 @@ const char *ftrace_print_flags_seq(struct trace_seq *p, const char *delim, 
const char *ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,

				     const struct trace_print_flags *symbol_array);



const char *ftrace_print_hex_seq(struct trace_seq *p,

				 const unsigned char *buf, int len);



/*

 * The trace entry - the most basic unit of tracing. This is what

 * is printed in the end as a single line in the trace output, such as:

include/trace/ftrace.h

+3 −0
Original line number Diff line number Diff line
@@ -198,6 +198,9 @@ 
		ftrace_print_symbols_seq(p, value, symbols);		\

	})



#undef __print_hex

#define __print_hex(buf, buf_len) ftrace_print_hex_seq(p, buf, buf_len)



#undef DECLARE_EVENT_CLASS

#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)	\

static notrace enum print_line_t					\

kernel/trace/trace_output.c

+15 −0
Original line number Diff line number Diff line
@@ -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)

{