Re: [PATCH v2] tracing: Be more clever when dumping hex in __print_hex()

From: Steven Rostedt
Date: Sat Sep 14 2019 - 19:53:13 EST


On Fri, 13 Sep 2019 15:28:26 +0300
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:

> On Tue, Aug 06, 2019 at 11:33:52AM -0400, Steven Rostedt wrote:
> > On Tue, 6 Aug 2019 18:15:43 +0300
> > Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> >
> > > Hex dump as many as 16 bytes at once in trace_print_hex_seq()
> > > instead of byte-by-byte approach.
>
> > > + const char *fmt = concatenate ? "%*phN" : "%*ph";
> > >
> > > + for (i = 0; i < buf_len; i += 16)
> > > + trace_seq_printf(p, fmt, min(buf_len - i, 16), &buf[i]);
> >
> > Cute.
> >
> > I'll have to wrap my head around it a bit to make sure it's correct.
>
> Anything I need to update here?
>

Nope, thanks for the ping, I've been traveling quite crazy lately. I'll
try to add this to the next merge window coming up shortly.

-- Steve