pci dma patch rediffed for 2.5.21
PATCH 1/1 pci dma patch rediffed for 2.5.21
Hello all,
This is the same patch as was posted against 2.4.19-pre10: pci_map_page was missing a cast on x86, which resulted in the high 32 bits of an address being silently discarded. This patch fixes that by casting the page number before multiplying it out.
-ben
Signature · 15 lines
"You will be reincarnated as a toad; and you will be much happier." :r ~/patches/v2.5/v2.5.21-pci.diff diff -urN v2.5.21/include/asm-i386/pci.h pci/include/asm-i386/pci.h --- v2.5.21/include/asm-i386/pci.h Mon Jun 10 21:41:10 2002 +++ pci/include/asm-i386/pci.h Mon Jun 10 21:54:11 2002 @@ -109,7 +109,7 @@ if (direction == PCI_DMA_NONE) 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,