diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 3f713c1b5dc112a42f58555a19c39ef73bbf67a5..d2e7d209f6517450165c33b7485f94102f887e6d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -353,8 +353,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
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);
@@ -369,6 +368,10 @@ nouveau_ttm_init(struct nouveau_drm *drm)
}
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;
diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index bc1c9602f4352a33ddb1797e616bfe212f89d5ad..35759a91d47dce2eaede0d0491910aeb0180cab7 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -1992,7 +1992,7 @@ static int cx23885_initdev(struct pci_dev *pci_dev,
(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;
diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
index 559f8293c53a2703327d9c05e798e221800b5bd8..dbc695f327607285162a6f6482582f5fe1857ff8 100644
--- a/drivers/media/pci/cx25821/cx25821-core.c
+++ b/drivers/media/pci/cx25821/cx25821-core.c
@@ -1319,7 +1319,7 @@ static int cx25821_initdev(struct pci_dev *pci_dev,
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;
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 57ddf8a34178dcb5c9884c9bff61b4c9a1cf5a90..0ed1b65303746d3b5129997dc37dd00cbe784716 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -890,7 +890,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
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);
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 9961b2232b97fd42eaef0e2fffa16de06cad99d1..9db7767d1fe03eaad3244993d193f1045cb5f92b 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -393,7 +393,7 @@ static int cx8802_init_common(struct cx8802_dev *dev)
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;
}
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index f3b12dbbe9a18bfd605251a46d01cb163fec2dfa..0de1ad5a977d4d7b629819bb2d0ee0fb54539bb3 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1314,7 +1314,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
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;
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index 83c90d3462e9b4384c1bb25d8621a65c556e092e..60b2d462f98d0ea92a3738d45919dce57c3c9daf 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -810,7 +810,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev,
"%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;
diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
index 87f39f97a79f21ab8dc016754cc8a19d0d2677de..e79d63eb774e338898584ee33fa8476b0cb5b2cf 100644
--- a/drivers/media/pci/saa7134/saa7134-core.c
+++ b/drivers/media/pci/saa7134/saa7134-core.c
@@ -951,7 +951,7 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
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;
diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index 3206a826b80d274e74df51c476a1b50074132c35..8f36b48ef7338c13ae265f9d424e05348d389f6f 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1264,7 +1264,7 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
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;
diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
index 04706cc9b8189830a024c037a77241965381f1b2..8c5655d351d35c4d1b82ca8f84390c32f31b0306 100644
--- a/drivers/media/pci/tw68/tw68-core.c
+++ b/drivers/media/pci/tw68/tw68-core.c
@@ -257,7 +257,7 @@ static int tw68_initdev(struct pci_dev *pci_dev,
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;
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index bc8b04f4288286d0bf253417b08c7fa6fe1e59ca..e2afabf3a465860230cbae73d8e37166d30c5394 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1500,7 +1500,7 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
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;
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 6e11ee6173ce566e97a61ad99e929cfc49895d84..d288f1c928de611455e44b515972b172340e4686 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -1247,11 +1247,9 @@ static int efx_init_io(struct efx_nic *efx)
* 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) {
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 1e9cdca370144cffb22141e4c03aa3ff800aefdd..f64b25c221e83b63704db0d856132ca96b7e606c 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1177,12 +1177,6 @@ static int kaweth_probe(
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");
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 060918f49fea82779a37d326a4d1729189ddad28..0744bf2ef2d6e42044c6c31f7c74b0ec120e07d3 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1662,12 +1662,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
* 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;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 957b42198328f74809cf944ef33a023cb5745b41..8e11fb2831cd20cb9e4b95415aee05041bb7813b 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -704,8 +704,6 @@ ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
* 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)
diff --git a/include/asm-generic/pci-dma-compat.h b/include/asm-generic/pci-dma-compat.h
index c110843fc53b3f80174496148df8798c866db1b5..eafce7b6f052384c549a1c10f20f09b5356a6f04 100644
--- a/include/asm-generic/pci-dma-compat.h
+++ b/include/asm-generic/pci-dma-compat.h
@@ -6,12 +6,6 @@
#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)
diff --git a/lib/string.c b/lib/string.c
index 84775ba873b9efd978fa006be56e58057b34031f..0323c0d5629af31e674bcfa24624e0917e2bb80d 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -904,7 +904,7 @@ void *memchr_inv(const void *start, int c, size_t bytes)
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;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7ce07d681265c78e3d0199ad81335b6df2d49ff3..827bb02a43a4e425393c296db89e7a49d6adf02b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2138,7 +2138,7 @@ static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count,
* 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
@@ -2180,7 +2180,7 @@ static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count,
* 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.
diff --git a/tools/testing/selftests/vm/mlock2-tests.c b/tools/testing/selftests/vm/mlock2-tests.c
index 4431994aade2ef6f3b55a67692997d632b8f168e..02ca5e0177c539c79b3fbb53d31ed3da7e4ba9a4 100644
--- a/tools/testing/selftests/vm/mlock2-tests.c
+++ b/tools/testing/selftests/vm/mlock2-tests.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
#include <sys/mman.h>
#include <stdint.h>
#include <stdio.h>
@@ -276,8 +277,8 @@ static bool is_vma_lock_on_fault(unsigned long addr)
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)