linux-kernel - [PATCH 21/34] powerpc/pci: remove the dma_set_mask pci

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Message-Id: <20181114082314.8965-22-hch@lst.de>
Date:   Wed, 14 Nov 2018 09:23:01 +0100
From:   Christoph Hellwig <hch@....de>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev@...ts.ozlabs.org, iommu@...ts.linux-foundation.org,
        linux-mm@...ck.org, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 21/34] powerpc/pci: remove the dma_set_mask pci_controller ops methods

Unused now.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 arch/powerpc/include/asm/pci-bridge.h | 2 --
 arch/powerpc/kernel/dma.c             | 7 -------
 2 files changed, 9 deletions(-)

diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index aace7033fa02..a50703af7db3 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -45,8 +45,6 @@ struct pci_controller_ops {
 	void		(*teardown_msi_irqs)(struct pci_dev *pdev);
 #endif
 
-	int             (*dma_set_mask)(struct pci_dev *pdev, u64 dma_mask);
-
 	void		(*shutdown)(struct pci_controller *hose);
 };
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 154e1cdae7f9..829eb2fefc8c 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -279,13 +279,6 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
 	if (ppc_md.dma_set_mask)
 		return ppc_md.dma_set_mask(dev, dma_mask);
 
-	if (dev_is_pci(dev)) {
-		struct pci_dev *pdev = to_pci_dev(dev);
-		struct pci_controller *phb = pci_bus_to_host(pdev->bus);
-		if (phb->controller_ops.dma_set_mask)
-			return phb->controller_ops.dma_set_mask(pdev, dma_mask);
-	}
-
 	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
 		return -EIO;
 	*dev->dma_mask = dma_mask;
-- 
2.19.1