Messages in this thread Patch in this message | | | Date | Sat, 4 Jan 2003 03:42:39 -0800 | From | William Lee Irwin III <> | Subject | blkdev.h paddr overflows |
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This patch, originally from Zwane Mwaikambo for my current page clustering tree, corrects overflows with pfn's shifted to paddrs. The portion of the fix casting the pfn's to dma_addr_t, included here, is applicable to mainline.
Please apply, Bill
===== include/linux/blkdev.h 1.94 vs edited ===== --- 1.94/include/linux/blkdev.h Tue Nov 19 17:13:41 2002 +++ edited/include/linux/blkdev.h Mon Dec 30 11:09:01 2002 @@ -287,8 +287,8 @@ * BLK_BOUNCE_ANY : don't bounce anything * BLK_BOUNCE_ISA : bounce pages above ISA DMA boundary */ -#define BLK_BOUNCE_HIGH (blk_max_low_pfn << PAGE_SHIFT) -#define BLK_BOUNCE_ANY (blk_max_pfn << PAGE_SHIFT) +#define BLK_BOUNCE_HIGH ((dma_addr_t)blk_max_low_pfn << PAGE_SHIFT) +#define BLK_BOUNCE_ANY ((dma_addr_t)blk_max_pfn << PAGE_SHIFT) #define BLK_BOUNCE_ISA (ISA_DMA_THRESHOLD) extern int init_emergency_isa_pool(void); - 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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