Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Miroslav Lichvar <mlichvar@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@kernel.org>,
        Richard Cochran <richardcochran@gmail.com>,
        Prarit Bhargava <prarit@redhat.com>,
        Stephen Boyd <stephen.boyd@linaro.org>,
        Shuah Khan <shuah@kernel.org>,
        John Stultz <john.stultz@linaro.org>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.9 111/293] kselftests: timers: Fix
 inconsistency-check to not ignore first timestamp
Thread-Topic: [PATCH AUTOSEL for 4.9 111/293] kselftests: timers: Fix
 inconsistency-check to not ignore first timestamp
Thread-Index: AQHTz5kaz3pp9+bMnkisf3C3yiYUgw==
Date:   Mon, 9 Apr 2018 00:24:20 +0000
Message-ID: <20180409002239.163177-111-alexander.levin@microsoft.com>
References: <20180409002239.163177-1-alexander.levin@microsoft.com>
In-Reply-To: <20180409002239.163177-1-alexander.levin@microsoft.com>
Accept-Language: en-US
Content-Language: en-US
received-spf: None (protection.outlook.com: microsoft.com does not designate
 permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 03f29198-195c-46d5-673a-08d59db0f9af
X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:24:20.0969
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0967
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Miroslav Lichvar <mlichvar@redhat.com>

[ Upstream commit 7a5de5512296fd2ab7a497e4a576196b1f046e78 ]

When the first timestamp in the list of clock readings was later than
the second timestamp and all other timestamps were in order, the
inconsistency was not reported because the index of the out-of-order
timestamp was equal to the default value.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 tools/testing/selftests/timers/inconsistency-check.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/timers/inconsistency-check.c b/tools/t=
esting/selftests/timers/inconsistency-check.c
index caf1bc9257c4..74c60e8759a0 100644
--- a/tools/testing/selftests/timers/inconsistency-check.c
+++ b/tools/testing/selftests/timers/inconsistency-check.c
@@ -118,7 +118,7 @@ int consistency_test(int clock_type, unsigned long seco=
nds)
 	start_str =3D ctime(&t);
=20
 	while (seconds =3D=3D -1 || now - then < seconds) {
-		inconsistent =3D 0;
+		inconsistent =3D -1;
=20
 		/* Fill list */
 		for (i =3D 0; i < CALLS_PER_LOOP; i++)
@@ -130,7 +130,7 @@ int consistency_test(int clock_type, unsigned long seco=
nds)
 				inconsistent =3D i;
=20
 		/* display inconsistency */
-		if (inconsistent) {
+		if (inconsistent >=3D 0) {
 			unsigned long long delta;
=20
 			printf("\%s\n", start_str);
--=20
2.15.1