From: yskelg@gmail.com
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>
Cc: kan.liang@linux.intel.com, Yang Jihong <yangjihong1@huawei.com>,
Ze Gao <zegao2021@gmail.com>, Leo Yan <leo.yan@linux.dev>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Austin Kim <austindh.kim@gmail.com>,
shjy180909@gmail.com, linux-perf-users@vger.kernel.org,
linux-kernel@vger.kernel.org, Yunseong Kim <yskelg@gmail.com>
Subject: [PATCH] util: constant -1 with expression of type char
Date: Thu, 20 Jun 2024 05:34:29 +0900 [thread overview]
Message-ID: <20240619203428.6330-2-yskelg@gmail.com> (raw)
From: Yunseong Kim <yskelg@gmail.com>
This patch resolve following warning.
tools/perf/util/evsel.c:1620:9: error: result of comparison of constant
-1 with expression of type 'char' is always false
-Werror,-Wtautological-constant-out-of-range-compare
1620 | if (c == -1)
| ~ ^ ~~
Signed-off-by: Yunseong Kim <yskelg@gmail.com>
---
tools/perf/util/evsel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 25857894c047..bc603193c477 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1620,7 +1620,7 @@ static int evsel__read_group(struct evsel *leader, int cpu_map_idx, int thread)
static bool read_until_char(struct io *io, char e)
{
- char c;
+ int c;
do {
c = io__get_char(io);
--
2.45.2
next reply other threads:[~2024-06-19 20:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-19 20:34 yskelg [this message]
2024-06-26 4:00 ` [PATCH] util: constant -1 with expression of type char Namhyung Kim
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