linux-kernel - [PATCH] iommu/vt-d: Fix W=1 clang warning in intel/perf.c

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Message-Id: <20210617145339.2692-1-joro@8bytes.org>
Date:   Thu, 17 Jun 2021 16:53:39 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com, Joerg Roedel <jroedel@...e.de>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] iommu/vt-d: Fix W=1 clang warning in intel/perf.c

From: Joerg Roedel <jroedel@...e.de>

Fix this warning when compiled with clang and W=1:

	drivers/iommu/intel/perf.c:16: warning: Function parameter or member 'latency_lock' not described in 'DEFINE_SPINLOCK'
	drivers/iommu/intel/perf.c:16: warning: expecting prototype for perf.c(). Prototype was for DEFINE_SPINLOCK() instead

Cc: Lu Baolu <baolu.lu@...ux.intel.com>
Reported-by: kernel test robot <lkp@...el.com>
Fixes: 55ee5e67a59a ("iommu/vt-d: Add common code for dmar latency performance monitors")
Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/iommu/intel/perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/intel/perf.c b/drivers/iommu/intel/perf.c
index 73b7ec705552..0e8e03252d92 100644
--- a/drivers/iommu/intel/perf.c
+++ b/drivers/iommu/intel/perf.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-/**
+/*
  * perf.c - performance monitor
  *
  * Copyright (C) 2021 Intel Corporation
-- 
2.31.1