USB mem flags nonpoisonous

This patch completely punts on passing SLAB_POISON, I've
gotten burnt by it once too many.  Seems like the slab code
changed somewhere.  I've got a separate patch to make the
pci_pool code use CONFIG_DEBUG_SLAB, which I'll send
around.
    
Meanwhile, I needed this to get at least EHCI to intialize on
a 2.5.7-pre1 system.  Please merge.

drivers/usb/hcd/ehci-hcd.c

@@ -89,12 +89,6 @@
 // #define EHCI_VERBOSE_DEBUG
 // #define have_split_iso
 
-#ifdef	CONFIG_DEBUG_SLAB
-#	define	EHCI_SLAB_FLAGS		(SLAB_POISON)
-#else
-#	define	EHCI_SLAB_FLAGS		0
-#endif
-
 /* magic numbers that can affect system performance */
 #define	EHCI_TUNE_CERR		3	/* 0-3 qtd retries; 0 == don't stop */
 #define	EHCI_TUNE_RL_HS		0	/* nak throttle; see 4.9 */
@@ -197,7 +191,7 @@ static int ehci_start (struct usb_hcd *hcd)
 	 * periodic_size can shrink by USBCMD update if hcc_params allows.
 	 */
 	ehci->periodic_size = DEFAULT_I_TDPS;
-	if ((retval = ehci_mem_init (ehci, EHCI_SLAB_FLAGS | SLAB_KERNEL)) < 0)
+	if ((retval = ehci_mem_init (ehci, SLAB_KERNEL)) < 0)
 		return retval;
 	hcc_params = readl (&ehci->caps->hcc_params);
 

drivers/usb/hcd/ehci-mem.c

@@ -224,8 +224,7 @@ static int ehci_mem_init (struct ehci_hcd *ehci, int flags)
 		ehci->periodic [i] = EHCI_LIST_END;
 
 	/* software shadow of hardware table */
-	ehci->pshadow = kmalloc (ehci->periodic_size * sizeof (void *),
-		flags & ~EHCI_SLAB_FLAGS);
+	ehci->pshadow = kmalloc (ehci->periodic_size * sizeof (void *), flags);
 	if (ehci->pshadow == 0) {
 		dbg ("no shadow periodic table");
 		ehci_mem_cleanup (ehci);

drivers/usb/hcd/ohci-mem.c

@@ -42,12 +42,6 @@ static void ohci_hcd_free (struct usb_hcd *hcd)
 
 /*-------------------------------------------------------------------------*/
 
-#ifdef	CONFIG_DEBUG_SLAB
-#	define OHCI_MEM_FLAGS	SLAB_POISON
-#else
-#	define OHCI_MEM_FLAGS	0
-#endif
- 
 #ifndef CONFIG_PCI
 #	error "usb-ohci currently requires PCI-based controllers"
 	/* to support non-PCI OHCIs, you need custom bus/mem/... glue */
@@ -169,14 +163,14 @@ static int ohci_mem_init (struct ohci_hcd *ohci)
 		sizeof (struct td),
 		32 /* byte alignment */,
 		0 /* no page-crossing issues */,
-		GFP_KERNEL | OHCI_MEM_FLAGS);
+		GFP_KERNEL);
 	if (!ohci->td_cache)
 		return -ENOMEM;
 	ohci->ed_cache = pci_pool_create ("ohci_ed", ohci->hcd.pdev,
 		sizeof (struct ed),
 		16 /* byte alignment */,
 		0 /* no page-crossing issues */,
-		GFP_KERNEL | OHCI_MEM_FLAGS);
+		GFP_KERNEL);
 	if (!ohci->ed_cache) {
 		pci_pool_destroy (ohci->td_cache);
 		return -ENOMEM;