highmem pci dma mapping does not work, missing cast in asm-i386/pci.h

From: Benjamin LaHaise (bcrl@redhat.com)
Date: Mon Jun 10 2002 - 18:56:44 EST


Hello all,

There's a missing cast in pci_map_page that causes 64 bit capable
drivers to access the wrong memory for highmem pages. Please
include the patch below to fix it.

                -ben

-- 
"You will be reincarnated as a toad; and you will be much happier."

:r ~/patches/v2.4/v2.4.19-pre10-pci_highmem.diff diff -urN v2.4.19-pre10/include/asm-i386/pci.h pci-v2.4.19-pre10/include/asm-i386/pci.h --- v2.4.19-pre10/include/asm-i386/pci.h Thu Jun 6 20:10:08 2002 +++ pci-v2.4.19-pre10/include/asm-i386/pci.h Mon Jun 10 19:54:16 2002 @@ -103,7 +103,7 @@ if (direction == PCI_DMA_NONE) out_of_line_bug(); - return (page - mem_map) * PAGE_SIZE + offset; + return (dma_addr_t)(page - mem_map) * PAGE_SIZE + offset; } static inline void pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address, - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



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