Hmm, the last round used dma_addr_t, but it turns out the things
they're compared against are unconditionally u64.
===== 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 Thu Jan 16 23:02:46 2003
@@ -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 ((u64)blk_max_low_pfn << PAGE_SHIFT)
+#define BLK_BOUNCE_ANY ((u64)blk_max_pfn << PAGE_SHIFT)
#define BLK_BOUNCE_ISA (ISA_DMA_THRESHOLD)
extern int init_emergency_isa_pool(void);
-
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