tile: uninline dma_set_mask

We'll soon merge <asm-generic/dma-mapping-common.h> into
<linux/dma-mapping.h> and the reference to dma_capable in the tile
dma_set_mask would create a circular dependency.

Fix this by moving the implementation out of line.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/tile/include/asm/dma-mapping.h

@@ -76,34 +76,7 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-	/*
-	 * For PCI devices with 64-bit DMA addressing capability, promote
-	 * the dma_ops to hybrid, with the consistent memory DMA space limited
-	 * to 32-bit. For 32-bit capable devices, limit the streaming DMA
-	 * address range to max_direct_dma_addr.
-	 */
-	if (dma_ops == gx_pci_dma_map_ops ||
-	    dma_ops == gx_hybrid_pci_dma_map_ops ||
-	    dma_ops == gx_legacy_pci_dma_map_ops) {
-		if (mask == DMA_BIT_MASK(64) &&
-		    dma_ops == gx_legacy_pci_dma_map_ops)
-			set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
-		else if (mask > dev->archdata.max_direct_dma_addr)
-			mask = dev->archdata.max_direct_dma_addr;
-	}
-
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
+int dma_set_mask(struct device *dev, u64 mask);
 
 /*
  * dma_alloc_noncoherent() is #defined to return coherent memory,

arch/tile/kernel/pci-dma.c

@@ -583,6 +583,35 @@ struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
 EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
 EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
 
+int dma_set_mask(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+
+	/*
+	 * For PCI devices with 64-bit DMA addressing capability, promote
+	 * the dma_ops to hybrid, with the consistent memory DMA space limited
+	 * to 32-bit. For 32-bit capable devices, limit the streaming DMA
+	 * address range to max_direct_dma_addr.
+	 */
+	if (dma_ops == gx_pci_dma_map_ops ||
+	    dma_ops == gx_hybrid_pci_dma_map_ops ||
+	    dma_ops == gx_legacy_pci_dma_map_ops) {
+		if (mask == DMA_BIT_MASK(64) &&
+		    dma_ops == gx_legacy_pci_dma_map_ops)
+			set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
+		else if (mask > dev->archdata.max_direct_dma_addr)
+			mask = dev->archdata.max_direct_dma_addr;
+	}
+
+	if (!dev->dma_mask || !dma_supported(dev, mask))
+		return -EIO;
+
+	*dev->dma_mask = mask;
+
+	return 0;
+}
+EXPORT_SYMBOL(dma_set_mask);
+
 #ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {