Merge branch 'akpm' (patches from Andrew)

Merge final patch-bomb from Andrew Morton:
"Various leftovers, mainly Christoph's pci_dma_supported() removals"

* emailed patches from Andrew Morton <[e-mail]>:
pci: remove pci_dma_supported
usbnet: remove ifdefed out call to dma_supported
kaweth: remove ifdefed out call to dma_supported
sfc: don't call dma_supported
nouveau: don't call pci_dma_supported
netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
cx23885: use pci_set_dma_mask insted of pci_dma_supported
cx25821: use pci_set_dma_mask insted of pci_dma_supported
cx88: use pci_set_dma_mask insted of pci_dma_supported
saa7134: use pci_set_dma_mask insted of pci_dma_supported
saa7164: use pci_set_dma_mask insted of pci_dma_supported
tw68-core: use pci_set_dma_mask insted of pci_dma_supported
pcnet32: use pci_set_dma_mask insted of pci_dma_supported
lib/string.c: add ULL suffix to the constant definition
hugetlb: trivial comment fix
selftests/mlock2: add ULL suffix to 64-bit constants
selftests/mlock2: add missing #define _GNU_SOURCE

drivers/gpu/drm/nouveau/nouveau_ttm.c

···
 
 	bits = nvxx_mmu(&drm->device)->dma_bits;
 	if (nvxx_device(&drm->device)->func->pci) {
-		if (drm->agp.bridge ||
-		     !dma_supported(dev->dev, DMA_BIT_MASK(bits)))
+		if (drm->agp.bridge)
 			bits = 32;
 	} else if (device->func->tegra) {
 		struct nvkm_device_tegra *tegra = device->func->tegra(device);
···
 	}
 
 	ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
+	if (ret && bits != 32) {
+		bits = 32;
+		ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
+	}
 	if (ret)
 		return ret;
 

drivers/media/pci/cx23885/cx23885-core.c

···
 		(unsigned long long)pci_resource_start(pci_dev, 0));
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_context;

drivers/media/pci/cx25821/cx25821-core.c

···
 		dev->pci_lat, (unsigned long long)dev->base_io_addr);
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;

drivers/media/pci/cx88/cx88-alsa.c

···
 		return err;
 	}
 
-	if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
 		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
 		err = -EIO;
 		cx88_core_put(core, pci);

drivers/media/pci/cx88/cx88-mpeg.c

···
 	if (pci_enable_device(dev->pci))
 		return -EIO;
 	pci_set_master(dev->pci);
-	if (!pci_dma_supported(dev->pci,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
 		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
 		return -EIO;
 	}

drivers/media/pci/cx88/cx88-video.c

···
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
 		err = -EIO;
 		goto fail_core;

drivers/media/pci/netup_unidvb/netup_unidvb_core.c

···
 		"%s(): board vendor 0x%x, revision 0x%x\n",
 		__func__, board_vendor, board_revision);
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		dev_err(&pci_dev->dev,
 			"%s(): 32bit PCI DMA is not supported\n", __func__);
 		goto pci_detect_err;

drivers/media/pci/saa7134/saa7134-core.c

···
 	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
 		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail1;

drivers/media/pci/saa7164/saa7164-core.c

···
 
 	pci_set_master(pci_dev);
 	/* TODO */
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;

drivers/media/pci/tw68/tw68-core.c

···
 		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 		dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
 		pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail1;

drivers/net/ethernet/amd/pcnet32.c

···
 		return -ENODEV;
 	}
 
-	if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
+	if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
 		return -ENODEV;

drivers/net/ethernet/sfc/efx.c

···
 	 * masks event though they reject 46 bit masks.
 	 */
 	while (dma_mask > 0x7fffffffUL) {
-		if (dma_supported(&pci_dev->dev, dma_mask)) {
-			rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
-			if (rc == 0)
-				break;
-		}
+		rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
+		if (rc == 0)
+			break;
 		dma_mask >>= 1;
 	}
 	if (rc) {

drivers/net/usb/kaweth.c

···
 	INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl);
 	usb_set_intfdata(intf, kaweth);
 
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	if (dma_supported (dev, 0xffffffffffffffffULL))
-		kaweth->net->features |= NETIF_F_HIGHDMA;
-#endif
-
 	SET_NETDEV_DEV(netdev, dev);
 	if (register_netdev(netdev) != 0) {
 		dev_err(dev, "Error registering netdev.\n");

drivers/net/usb/usbnet.c

···
 	 * bind() should set rx_urb_size in that case.
 	 */
 	dev->hard_mtu = net->mtu + net->hard_header_len;
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	// possible with some EHCI controllers
-	if (dma_supported (&udev->dev, DMA_BIT_MASK(64)))
-		net->features |= NETIF_F_HIGHDMA;
-#endif
 
 	net->netdev_ops = &usbnet_netdev_ops;
 	net->watchdog_timeo = TX_TIMEOUT_JIFFIES;

drivers/parisc/ccio-dma.c

···
  * ccio_dma_supported - Verify the IOMMU supports the DMA address range.
  * @dev: The PCI device.
  * @mask: A bit mask describing the DMA address range of the device.
- *
- * This function implements the pci_dma_supported function.
  */
 static int 
 ccio_dma_supported(struct device *dev, u64 mask)

include/asm-generic/pci-dma-compat.h

···
 
 #include <linux/dma-mapping.h>
 
-static inline int
-pci_dma_supported(struct pci_dev *hwdev, u64 mask)
-{
-	return dma_supported(hwdev == NULL ? NULL : &hwdev->dev, mask);
-}
-
 static inline void *
 pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
 		     dma_addr_t *dma_handle)

lib/string.c

···
 
 	value64 = value;
 #if defined(CONFIG_ARCH_HAS_FAST_MULTIPLIER) && BITS_PER_LONG == 64
-	value64 *= 0x0101010101010101;
+	value64 *= 0x0101010101010101ULL;
 #elif defined(CONFIG_ARCH_HAS_FAST_MULTIPLIER)
 	value64 *= 0x01010101;
 	value64 |= value64 << 32;

mm/hugetlb.c

···
 	 * First take pages out of surplus state.  Then make up the
 	 * remaining difference by allocating fresh huge pages.
 	 *
-	 * We might race with alloc_buddy_huge_page() here and be unable
+	 * We might race with __alloc_buddy_huge_page() here and be unable
 	 * to convert a surplus huge page to a normal huge page. That is
 	 * not critical, though, it just means the overall size of the
 	 * pool might be one hugepage larger than it needs to be, but
···
 	 * By placing pages into the surplus state independent of the
 	 * overcommit value, we are allowing the surplus pool size to
 	 * exceed overcommit. There are few sane options here. Since
-	 * alloc_buddy_huge_page() is checking the global counter,
+	 * __alloc_buddy_huge_page() is checking the global counter,
 	 * though, we'll note that we're not allowed to exceed surplus
 	 * and won't grow the pool anywhere else. Not until one of the
 	 * sysctls are changed, or the surplus pages go out of use.

tools/testing/selftests/vm/mlock2-tests.c

···
+#define _GNU_SOURCE
 #include <sys/mman.h>
 #include <stdint.h>
 #include <stdio.h>
···
 	return ret;
 }
 
-#define PRESENT_BIT     0x8000000000000000
-#define PFN_MASK        0x007FFFFFFFFFFFFF
+#define PRESENT_BIT     0x8000000000000000ULL
+#define PFN_MASK        0x007FFFFFFFFFFFFFULL
 #define UNEVICTABLE_BIT (1UL << 18)
 
 static int lock_check(char *map)