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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-06 18:15:43 +0300 |
|---|---|---|
| committer |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-09-17 11:21:28 -0400 |
| commit | 119cdbdb95a66203c0bca09474427c297186f7a3 (patch) | |
| tree | 80a351435339881404010db2e4288525676ffa08 /kernel/trace/trace_output.c | |
| parent | ftrace: Simplify ftrace hash lookup code in clear_func_from_hash() (diff) | |
| download | linux-dev-119cdbdb95a66203c0bca09474427c297186f7a3.tar.xz linux-dev-119cdbdb95a66203c0bca09474427c297186f7a3.zip | |
tracing: Be more clever when dumping hex in __print_hex()
Hex dump as many as 16 bytes at once in trace_print_hex_seq()
instead of byte-by-byte approach.
Link: http://lkml.kernel.org/r/20190806151543.86061-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to '')
| -rw-r--r-- | kernel/trace/trace_output.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index cab4a5398f1d..d54ce252b05a 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -219,10 +219,10 @@ trace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len, { int i; const char *ret = trace_seq_buffer_ptr(p); + const char *fmt = concatenate ? "%*phN" : "%*ph"; - for (i = 0; i < buf_len; i++) - trace_seq_printf(p, "%s%2.2x", concatenate || i == 0 ? "" : " ", - buf[i]); + for (i = 0; i < buf_len; i += 16) + trace_seq_printf(p, fmt, min(buf_len - i, 16), &buf[i]); trace_seq_putc(p, 0); return ret; |