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:   Matteo Croce <mcroce@redhat.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
        linux-kernel@vger.kernel.org
Subject: [PATCH] arm_pmu: mark expected switch fall-through
Date:   Mon, 29 Jul 2019 01:53:20 +0200
Message-Id: <20190728235320.8600-1-mcroce@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Mark switch cases where we are expecting to fall through,
fixes the following warning:

drivers/perf/arm_pmu.c: In function ‘cpu_pm_pmu_notify’:
drivers/perf/arm_pmu.c:726:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   cpu_pm_pmu_setup(armpmu, cmd);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_pmu.c:727:2: note: here
  case CPU_PM_ENTER_FAILED:
  ^~~~

Signed-off-by: Matteo Croce <mcroce@redhat.com>
---
 drivers/perf/arm_pmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 2d06b8095a19..3eb711066a22 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -724,6 +724,7 @@ static int cpu_pm_pmu_notify(struct notifier_block *b, unsigned long cmd,
 		break;
 	case CPU_PM_EXIT:
 		cpu_pm_pmu_setup(armpmu, cmd);
+		/* fallthrough */
 	case CPU_PM_ENTER_FAILED:
 		armpmu->start(armpmu);
 		break;
-- 
2.21.0