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Wed, 26 Apr 2017 14:38:57 +0000 From: Robert Richter To: Will Deacon , Joerg Roedel Subject: [PATCH] iommu: Print a message with the default domain type created Date: Wed, 26 Apr 2017 16:38:13 +0200 Message-Id: <20170426143813.21225-1-rrichter@cavium.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 X-Originating-IP: [92.229.94.4] X-ClientProxiedBy: HE1PR0402CA0005.eurprd04.prod.outlook.com (10.175.27.15) To BY2PR07MB2343.namprd07.prod.outlook.com (10.166.114.145) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5a8d7274-0b2a-42f6-0ac7-08d48cb1fa03 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(201703131423075)(201703031133081); SRVR:BY2PR07MB2343; X-Microsoft-Exchange-Diagnostics: 1; BY2PR07MB2343; 3:c7iUb6C+/xLCP5PGRWe+4gWj1kueChtkrUGAtozdFNdCDK6OpyQP7HipVU+YPU5uVhAC1Vgg45H4G/v+4VGISXFW4evcdpRfqdEtNNUk6W3nx3bsO3aSQmuXcvxUAz+bkoFjNx1gTnXWTsE+fPSiIvL6lErpXVyEouX6yOixwZ2gB8dyhhwT+GnlgkQ7HyFZjM/Ihrzo82K8/YOxX2U1b4K3DvSKcwEV5G0f4ns9MvqykgiQsYnZdFbRE4F2qtoCwZQUTojt4wLsKKjte4fp2g7H78nm9Pk8CGTqRXRdWxJevL2BLdHW+qmjdBva+k365fJtqJWvlR1p0hnjwGA2wQ==; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Robert Richter , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP There are several ways the bypass mode can be enabled. With commit fccb4e3b8ab0 iommu: Allow default domain type to be set on the kernel command line there is the option to switch into bypass mode. And, depending on devicetree options, bypass mode can be also enabled. This makes it hard to determine if direct mapping is enabled. Print message with the default domain type case. Signed-off-by: Robert Richter --- drivers/iommu/iommu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 3b67144dead2..ae84899dabd2 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -586,7 +586,9 @@ int iommu_group_add_device(struct iommu_group *group, struct device *dev) trace_add_device_to_group(group->id, dev); - pr_info("Adding device %s to group %d\n", dev_name(dev), group->id); + pr_info("Adding device %s to group %d, default domain type %d\n", + dev_name(dev), group->id, + group->default_domain ? group->default_domain->type : -1); return 0;