Only pre-allocate 256 bytes of cardbio IO range

Linus Torvalds · Linus Torvalds · commit 26aad69e3dd8 · 2005-08-26T10:40:10.000-07:00
It may seem small, but most cards need much less, if any, and this not
only makes the code adhere to the comment, it seems to fix a boot-time
lockup on a ThinkPad 380XD laptop reported by Tero Roponen &lt;teanropo@cc.jyu.fi&gt;

Signed-off-by: Linus Torvalds &lt;torvalds@osdl.org&gt;
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
@@ -40,7 +40,7 @@
  * FIXME: IO should be max 256 bytes.  However, since we may
  * have a P2P bridge below a cardbus bridge, we need 4K.
  */
-#define CARDBUS_IO_SIZE		(4096)
+#define CARDBUS_IO_SIZE		(256)
 #define CARDBUS_MEM_SIZE	(32*1024*1024)
 
 static void __devinit
