From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 6/6] dmaengine: sh: rcar-dmac: Use device_iommu_mapped() Date: Tue, 11 Dec 2018 14:43:43 +0100 Message-ID: <20181211134343.10664-7-joro@8bytes.org> References: <20181211134343.10664-1-joro@8bytes.org> Return-path: In-Reply-To: <20181211134343.10664-1-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org To: iommu@lists.linux-foundation.org Cc: Russell Currey , Sam Bobroff , oohall@gmail.com, Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Dan Williams , Vinod Koul , Joerg Roedel , jroedel@suse.de, Mathias Nyman , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, dmaengine@vger.kernel.org, linux-usb@vger.kernel.org List-Id: linux-acpi@vger.kernel.org From: Joerg Roedel Use Use device_iommu_mapped() to check if the device is already mapped by an IOMMU. Acked-by: Robin Murphy Signed-off-by: Joerg Roedel --- drivers/dma/sh/rcar-dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 74fa2b1a6a86..2b4f25698169 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1809,7 +1809,7 @@ static int rcar_dmac_probe(struct platform_device *pdev) * level we can't disable it selectively, so ignore channel 0 for now if * the device is part of an IOMMU group. */ - if (pdev->dev.iommu_group) { + if (device_iommu_mapped(&pdev->dev)) { dmac->n_channels--; channels_offset = 1; } -- 2.17.1