[ARM] Fix IOP13xx build warnings
http://armlinux.simtec.co.uk/kautobuild/2.6.27-rc5/iop13xx_defconfig/zimage.log Occurrences Warning text 339 arch/arm/include/asm/dma-mapping.h:40: warning: return makes pointer from integer without a cast 203 arch/arm/include/asm/dma-mapping.h:45: warning: return makes integer from pointer without a cast Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -26,32 +26,52 @@
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/* RAM has 1:1 mapping on the PCIe/x Busses */
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#define __virt_to_bus(x) (__virt_to_phys(x))
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#define __bus_to_virt(x) (__phys_to_virt(x))
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#define __bus_to_virt(x) (__phys_to_virt(x))
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#define virt_to_lbus(x) \
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(( ((void*)(x) >= (void*)IOP13XX_PMMR_V_START) && \
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((void*)(x) < (void*)IOP13XX_PMMR_V_END) ) ? \
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((x) - IOP13XX_PMMR_VIRT_MEM_BASE + IOP13XX_PMMR_PHYS_MEM_BASE) : \
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((x) - PAGE_OFFSET + PHYS_OFFSET))
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static inline dma_addr_t __virt_to_lbus(unsigned long x)
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{
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return x + IOP13XX_PMMR_PHYS_MEM_BASE - IOP13XX_PMMR_VIRT_MEM_BASE;
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}
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#define lbus_to_virt(x) \
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(( ((x) >= IOP13XX_PMMR_P_START) && ((x) < IOP13XX_PMMR_P_END) ) ? \
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((x) - IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_VIRT_MEM_BASE ) : \
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((x) - PHYS_OFFSET + PAGE_OFFSET))
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static inline unsigned long __lbus_to_virt(dma_addr_t x)
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{
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return x + IOP13XX_PMMR_VIRT_MEM_BASE - IOP13XX_PMMR_PHYS_MEM_BASE;
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}
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#define __is_lbus_dma(a) \
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((a) >= IOP13XX_PMMR_P_START && (a) < IOP13XX_PMMR_P_END)
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#define __is_lbus_virt(a) \
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((a) >= IOP13XX_PMMR_V_START && (a) < IOP13XX_PMMR_V_END)
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/* Device is an lbus device if it is on the platform bus of the IOP13XX */
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#define is_lbus_device(dev) (dev &&\
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(strncmp(dev->bus->name, "platform", 8) == 0))
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#define is_lbus_device(dev) \
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(dev && strncmp(dev->bus->name, "platform", 8) == 0)
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#define __arch_dma_to_virt(dev, addr) \
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({ \
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unsigned long __virt; \
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dma_addr_t __dma = addr; \
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if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \
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__virt = __lbus_to_virt(__dma); \
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else \
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__virt = __bus_to_virt(__dma); \
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(void *)__virt; \
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})
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#define __arch_virt_to_dma(dev, addr) \
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({ \
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unsigned long __virt = (unsigned long)addr; \
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dma_addr_t __dma; \
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if (is_lbus_device(dev) && __is_lbus_virt(__virt)) \
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__dma = __virt_to_lbus(__virt); \
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else \
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__dma = __virt_to_bus(__virt); \
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__dma; \
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})
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#define __arch_page_to_dma(dev, page) \
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({is_lbus_device(dev) ? (dma_addr_t)virt_to_lbus(page_address(page)) : \
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(dma_addr_t)__virt_to_bus(page_address(page));})
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#define __arch_dma_to_virt(dev, addr) \
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({is_lbus_device(dev) ? lbus_to_virt(addr) : __bus_to_virt(addr);})
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#define __arch_virt_to_dma(dev, addr) \
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({is_lbus_device(dev) ? virt_to_lbus(addr) : __virt_to_bus(addr);})
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__arch_virt_to_dma(dev, page_address(page))
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#endif /* CONFIG_ARCH_IOP13XX */
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#endif /* !ASSEMBLY */
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