[PATCH 4/8] perf config: Introduce perf_config_u8()

From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: acme@kernel.org, jolsa@redhat.com
Cc: xieyisheng1@huawei.com, alexey.budankov@linux.intel.com,
	treeze.taeung@gmail.com, adrian.hunter@intel.com,
	tmricht@linux.ibm.com, namhyung@kernel.org, irogers@google.com,
	songliubraving@fb.com, yao.jin@linux.intel.com,
	changbin.du@intel.com, leo.yan@linaro.org,
	linux-kernel@vger.kernel.org,
	Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Subject: [PATCH 4/8] perf config: Introduce perf_config_u8()
Date: Thu, 13 Feb 2020 12:13:02 +0530	[thread overview]
Message-ID: <20200213064306.160480-5-ravi.bangoria@linux.ibm.com> (raw)
In-Reply-To: <20200213064306.160480-1-ravi.bangoria@linux.ibm.com>

Introduce perf_config_u8() utility function to convert char * input
into u8 destination. We will utilize it in followup patch.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
 tools/perf/util/config.c | 12 ++++++++++++
 tools/perf/util/config.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 0bc9c4d7fdc5..ef38eba56ed0 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -374,6 +374,18 @@ int perf_config_int(int *dest, const char *name, const char *value)
 	return 0;
 }
 
+int perf_config_u8(u8 *dest, const char *name, const char *value)
+{
+	long ret = 0;
+
+	if (!perf_parse_long(value, &ret)) {
+		bad_config(name);
+		return -1;
+	}
+	*dest = ret;
+	return 0;
+}
+
 static int perf_config_bool_or_int(const char *name, const char *value, int *is_bool)
 {
 	int ret;
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index bd0a5897c76a..c10b66dde2f3 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -29,6 +29,7 @@ typedef int (*config_fn_t)(const char *, const char *, void *);
 int perf_default_config(const char *, const char *, void *);
 int perf_config(config_fn_t fn, void *);
 int perf_config_int(int *dest, const char *, const char *);
+int perf_config_u8(u8 *dest, const char *name, const char *value);
 int perf_config_u64(u64 *dest, const char *, const char *);
 int perf_config_bool(const char *, const char *);
 int config_error_nonbool(const char *);
-- 
2.24.1

