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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Wang Nan <wangnan0@huawei.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: perf bison: clang points out: error: conflicting types for 'parse_events_error' always evaluate to 'true'
Date: Wed, 15 Feb 2017 09:41:02 -0300	[thread overview]
Message-ID: <20170215124102.GA4020@kernel.org> (raw)
In-Reply-To: <20170215105056.GB8207@krava>

Em Wed, Feb 15, 2017 at 11:50:56AM +0100, Jiri Olsa escreveu:
> On Tue, Feb 14, 2017 at 03:24:35PM -0300, Arnaldo Carvalho de Melo wrote:
> > util/pmu.c:948:28: error: address of array 'alias->unit' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
> >         if ((info->unit && alias->unit) ||
> >                         ~~ ~~~~~~~^~~~
> > util/pmu.c:953:13: error: address of array 'alias->unit' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
> >         if (alias->unit)
> >         ~~  ~~~~~~~^~~~
> > 2 errors generated.
> > 
> > 
> > So, is this test about having something on that alias->unit array? I.e.
> > should this suffice?
> 
> yep, that seems right.. good catch

Thanks, adding your Acked-by then, ok?

How about this other one:

  CC       /tmp/build/perf/util/trace-event-info.o
util/parse-events.y:699:6: error: conflicting types for 'parse_events_error'
void parse_events_error(YYLTYPE *loc, void *data,
     ^
/tmp/build/perf/util/parse-events-bison.c:2224:7: note: previous implicit declaration is here
      yyerror (&yylloc, _data, scanner, YY_("syntax error"));
      ^
/tmp/build/perf/util/parse-events-bison.c:65:25: note: expanded from macro 'yyerror'
#define yyerror         parse_events_error
                        ^
1 error generated.

  reply	other threads:[~2017-02-15 12:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-14 18:24 perf pmu: clang points out: address of array 'alias->unit' will always evaluate to 'true' Arnaldo Carvalho de Melo
2017-02-15 10:50 ` Jiri Olsa
2017-02-15 12:41   ` Arnaldo Carvalho de Melo [this message]
2017-02-15 12:52     ` perf bison: clang points out: error: conflicting types for 'parse_events_error' " Jiri Olsa
2017-02-15 13:06       ` perf build with clang, modulo libpython: " Arnaldo Carvalho de Melo
2017-02-15 13:21         ` Jiri Olsa
2017-02-16 20:05         ` [tip:perf/core] perf tools: Add missing parse_events_error() prototype tip-bot for Arnaldo Carvalho de Melo
2017-02-16 20:04 ` [tip:perf/core] perf pmu: Fix check for unset alias->unit array tip-bot for Arnaldo Carvalho de Melo

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