patch-2.4.3 linux/include/asm-i386/pci.h

• Lines: 15
• Date: Mon Mar 26 15:48:44 2001
• Orig file: v2.4.2/linux/include/asm-i386/pci.h
• Orig date: Thu Jan 4 14:51:31 2001

diff -u --recursive --new-file v2.4.2/linux/include/asm-i386/pci.h linux/include/asm-i386/pci.h
@@ -152,6 +152,14 @@
  */
 extern inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
 {
+        /*
+         * we fall back to GFP_DMA when the mask isn't all 1s,
+         * so we can't guarantee allocations that must be
+         * within a tighter range than GFP_DMA..
+         */
+        if(mask < 0x00ffffff)
+                return 0;
+
 	return 1;
 }