linux-kernel - Re: [PATCH v2 01/10] perf dwarf-aux: Use signed variable types in match_var

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Message-ID: <aMWBE4L2RtEXhxgG@x1>
Date: Sat, 13 Sep 2025 11:34:59 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Zecheng Li <zecheng@...gle.com>, Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>, Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Xu Liu <xliuprof@...gle.com>, linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 01/10] perf dwarf-aux: Use signed variable types in
 match_var_offset

On Fri, Sep 05, 2025 at 12:50:30PM -0700, Namhyung Kim wrote:
> On Wed, Sep 03, 2025 at 07:05:23PM -0300, Arnaldo Carvalho de Melo wrote:
> > On Wed, Sep 03, 2025 at 12:49:49PM -0300, Arnaldo Carvalho de Melo wrote:
> > > On Wed, Aug 27, 2025 at 11:52:02PM -0700, Namhyung Kim wrote:
> > > > On Mon, Aug 25, 2025 at 07:54:03PM +0000, Zecheng Li wrote:
> > > > > Change the signature of match_var_offset to use signed types (s64). This
> > > > > ensures correct behavior when addr_offset or addr_type are negative.
  
> > > > > Signed-off-by: Zecheng Li <zecheng@...gle.com>
   
> > > > I've confirmed it produced slightly better results on my test sets.
  
> > > > Reviewed-by: Namhyung Kim <namhyung@...nel.org>
  
> > > Cherry picked this first patch to make a bit of progress in the
> > > perf-tools-next front.

> > It is in perf-tools-next/perf-tools-next now (this first reviewed one):
 
> > https://web.git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/log/?h=perf-tools-next
 
> Thanks for doing that.  Please pick up the patch 2 and 3 as well.

Done.

- Arnaldo