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From:   Wen Yang <wen.yang99@zte.com.cn>
To:     alexander.shishkin@linux.intel.com, jolsa@redhat.com,
        namhyung@kernel.org
Cc:     peterz@infradead.org, acme@kernel.org,
        linux-kernel@vger.kernel.org, zhong.weidong@zte.com.cn,
        Wen Yang <wen.yang99@zte.com.cn>,
        Julia Lawall <julia.lawall@lip6.fr>,
        Wen Yang <yellowriver2010@hotmail.com>
Subject: [PATCH] perf bpf: Use ERR_CAST instead of ERR_PTR(PTR_ERR())
Date:   Tue, 27 Nov 2018 17:06:10 +0800
Message-Id: <20181127090610.28488-1-wen.yang99@zte.com.cn>
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Use ERR=5FCAST inlined function instead of ERR=5FPTR(PTR=5FERR(...)).
This makes it more readable and also fix this warning detected
by err=5Fcast.cocci:
tools/perf/util/bpf-loader.c:1606:11-18: WARNING: ERR=5FCAST can be used wi=
th op

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Arnaldo Carvalho de Melo <acme@kernel.org>
CC: Alexander Shishkin <alexander.shishkin@linux.intel.com>
CC: Jiri Olsa <jolsa@redhat.com>
CC: Namhyung Kim <namhyung@kernel.org>
CC: Julia Lawall <julia.lawall@lip6.fr>
CC: Wen Yang <yellowriver2010@hotmail.com>
CC: linux-kernel@vger.kernel.org
---
 tools/perf/util/bpf-loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index f9ae1a993806..9a280647d829 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1603,7 +1603,7 @@ struct perf=5Fevsel *bpf=5F=5Fsetup=5Foutput=5Fevent(=
struct perf=5Fevlist *evlist, const cha
=20
 			op =3D bpf=5Fmap=5F=5Fadd=5Fnewop(map, NULL);
 			if (IS=5FERR(op))
-				return ERR=5FPTR(PTR=5FERR(op));
+				return ERR=5FCAST(op);
 			op->op=5Ftype =3D BPF=5FMAP=5FOP=5FSET=5FEVSEL;
 			op->v.evsel =3D evsel;
 		}
--=20
2.19.1