Merge branch 'master' into for-2.6.31

Conflicts:
	drivers/block/hd.c
	drivers/block/mg_disk.c

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

12 files changed, 93 insertions, 37 deletions

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 64dd7df90e62..0f3706512686 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -87,8 +87,8 @@ EXPORT_SYMBOL(pci_read_vpd);
  * pci_write_vpd - Write entry to Vital Product Data
  * @dev:        pci device struct
  * @pos:        offset in vpd space
- * @count:      number of bytes to read
- * @val:        value to write
+ * @count:      number of bytes to write
+ * @buf:        buffer containing write data
  *
  */
 ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf)
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index bf7d6ce9bbb3..6808d8333ecc 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -158,6 +158,7 @@ int ht_create_irq(struct pci_dev *dev, int idx)
 
 /**
  * ht_destroy_irq - destroy an irq created with ht_create_irq
+ * @irq: irq to be destroyed
  *
  * This reverses ht_create_irq removing the specified irq from
  * existence.  The irq should be free before this happens.
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 001b328adf80..a563fbe559d0 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -59,6 +59,10 @@
 #define DMA_32BIT_PFN           IOVA_PFN(DMA_BIT_MASK(32))
 #define DMA_64BIT_PFN           IOVA_PFN(DMA_BIT_MASK(64))
 
+#ifndef PHYSICAL_PAGE_MASK
+#define PHYSICAL_PAGE_MASK PAGE_MASK
+#endif
+
 /* global iommu list, set NULL for ignored DMAR units */
 static struct intel_iommu **g_iommus;
 
@@ -1216,7 +1220,7 @@ static void dmar_init_reserved_ranges(void)
                         if (!r->flags || !(r->flags & IORESOURCE_MEM))
                                 continue;
                         addr = r->start;
-                        addr &= PAGE_MASK;
+                        addr &= PHYSICAL_PAGE_MASK;
                         size = r->end - addr;
                         size = PAGE_ALIGN(size);
                         iova = reserve_iova(&reserved_iova_list, IOVA_PFN(addr),
@@ -2173,7 +2177,8 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
          * is not a big problem
          */
         ret = domain_page_mapping(domain, start_paddr,
-                ((u64)paddr) & PAGE_MASK, size, prot);
+                                  ((u64)paddr) & PHYSICAL_PAGE_MASK,
+                                  size, prot);
         if (ret)
                 goto error;
 
@@ -2463,8 +2468,8 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne
                 addr = page_to_phys(sg_page(sg)) + sg->offset;
                 size = aligned_size((u64)addr, sg->length);
                 ret = domain_page_mapping(domain, start_addr + offset,
-                        ((u64)addr) & PAGE_MASK,
-                        size, prot);
+                                          ((u64)addr) & PHYSICAL_PAGE_MASK,
+                                          size, prot);
                 if (ret) {
                         /*  clear the page */
                         dma_pte_clear_range(domain, start_addr,
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 6f2e6295e773..362773247fbf 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -455,8 +455,6 @@ static int msix_capability_init(struct pci_dev *dev,
                 entry->msi_attrib.default_irq = dev->irq;
                 entry->msi_attrib.pos = pos;
                 entry->mask_base = base;
-                entry->masked = readl(base + j * PCI_MSIX_ENTRY_SIZE +
-                                        PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
                 msix_mask_irq(entry, 1);
 
                 list_add_tail(&entry->list, &dev->msi_list);
@@ -493,6 +491,12 @@ static int msix_capability_init(struct pci_dev *dev,
         msix_set_enable(dev, 1);
         dev->msix_enabled = 1;
 
+        list_for_each_entry(entry, &dev->msi_list, list) {
+                int vector = entry->msi_attrib.entry_nr;
+                entry->masked = readl(base + vector * PCI_MSIX_ENTRY_SIZE +
+                                        PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
+        }
+
         return 0;
 }
 
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a7eb1b46a5a8..85ebd02a64a7 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -492,6 +492,7 @@ write_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
 /**
  * pci_read_legacy_io - read byte(s) from legacy I/O port space
  * @kobj: kobject corresponding to file to read from
+ * @bin_attr: struct bin_attribute for this file
  * @buf: buffer to store results
  * @off: offset into legacy I/O port space
  * @count: number of bytes to read
@@ -517,6 +518,7 @@ pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
 /**
  * pci_write_legacy_io - write byte(s) to legacy I/O port space
  * @kobj: kobject corresponding to file to read from
+ * @bin_attr: struct bin_attribute for this file
  * @buf: buffer containing value to be written
  * @off: offset into legacy I/O port space
  * @count: number of bytes to write
@@ -733,9 +735,9 @@ pci_mmap_resource_wc(struct kobject *kobj, struct bin_attribute *attr,
 
 /**
  * pci_remove_resource_files - cleanup resource files
- * @dev: dev to cleanup
+ * @pdev: dev to cleanup
  *
- * If we created resource files for @dev, remove them from sysfs and
+ * If we created resource files for @pdev, remove them from sysfs and
  * free their resources.
  */
 static void
@@ -793,9 +795,9 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
 
 /**
  * pci_create_resource_files - create resource files in sysfs for @dev
- * @dev: dev in question
+ * @pdev: dev in question
  *
- * Walk the resources in @dev creating files for each resource available.
+ * Walk the resources in @pdev creating files for each resource available.
  */
 static int pci_create_resource_files(struct pci_dev *pdev)
 {
@@ -829,6 +831,7 @@ void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }
 /**
  * pci_write_rom - used to enable access to the PCI ROM display
  * @kobj: kernel object handle
+ * @bin_attr: struct bin_attribute for this file
  * @buf: user input
  * @off: file offset
  * @count: number of byte in input
@@ -852,6 +855,7 @@ pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
 /**
  * pci_read_rom - read a PCI ROM
  * @kobj: kernel object handle
+ * @bin_attr: struct bin_attribute for this file
  * @buf: where to put the data we read from the ROM
  * @off: file offset
  * @count: number of bytes to read
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 16fd0d4c3166..34bf0fdf5047 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -681,11 +681,34 @@ EXPORT_SYMBOL(pci_choose_state);
 
 #define PCI_EXP_SAVE_REGS       7
 
+#define pcie_cap_has_devctl(type, flags)        1
+#define pcie_cap_has_lnkctl(type, flags)                \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1 ||    \
+                 (type == PCI_EXP_TYPE_ROOT_PORT ||     \
+                  type == PCI_EXP_TYPE_ENDPOINT ||      \
+                  type == PCI_EXP_TYPE_LEG_END))
+#define pcie_cap_has_sltctl(type, flags)                \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1 ||    \
+                 ((type == PCI_EXP_TYPE_ROOT_PORT) ||   \
+                  (type == PCI_EXP_TYPE_DOWNSTREAM &&   \
+                   (flags & PCI_EXP_FLAGS_SLOT))))
+#define pcie_cap_has_rtctl(type, flags)                 \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1 ||    \
+                 (type == PCI_EXP_TYPE_ROOT_PORT ||     \
+                  type == PCI_EXP_TYPE_RC_EC))
+#define pcie_cap_has_devctl2(type, flags)               \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1)
+#define pcie_cap_has_lnkctl2(type, flags)               \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1)
+#define pcie_cap_has_sltctl2(type, flags)               \
+                ((flags & PCI_EXP_FLAGS_VERS) > 1)
+
 static int pci_save_pcie_state(struct pci_dev *dev)
 {
         int pos, i = 0;
         struct pci_cap_saved_state *save_state;
         u16 *cap;
+        u16 flags;
 
         pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
         if (pos <= 0)
@@ -698,13 +721,22 @@ static int pci_save_pcie_state(struct pci_dev *dev)
         }
         cap = (u16 *)&save_state->data[0];
 
-        pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_LNKCTL, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_SLTCTL, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_LNKCTL2, &cap[i++]);
-        pci_read_config_word(dev, pos + PCI_EXP_SLTCTL2, &cap[i++]);
+        pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &flags);
+
+        if (pcie_cap_has_devctl(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &cap[i++]);
+        if (pcie_cap_has_lnkctl(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_LNKCTL, &cap[i++]);
+        if (pcie_cap_has_sltctl(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_SLTCTL, &cap[i++]);
+        if (pcie_cap_has_rtctl(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &cap[i++]);
+        if (pcie_cap_has_devctl2(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &cap[i++]);
+        if (pcie_cap_has_lnkctl2(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_LNKCTL2, &cap[i++]);
+        if (pcie_cap_has_sltctl2(dev->pcie_type, flags))
+                pci_read_config_word(dev, pos + PCI_EXP_SLTCTL2, &cap[i++]);
 
         return 0;
 }
@@ -714,6 +746,7 @@ static void pci_restore_pcie_state(struct pci_dev *dev)
         int i = 0, pos;
         struct pci_cap_saved_state *save_state;
         u16 *cap;
+        u16 flags;
 
         save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP);
         pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
@@ -721,13 +754,22 @@ static void pci_restore_pcie_state(struct pci_dev *dev)
                 return;
         cap = (u16 *)&save_state->data[0];
 
-        pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_LNKCTL, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_SLTCTL, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_RTCTL, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_LNKCTL2, cap[i++]);
-        pci_write_config_word(dev, pos + PCI_EXP_SLTCTL2, cap[i++]);
+        pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &flags);
+
+        if (pcie_cap_has_devctl(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, cap[i++]);
+        if (pcie_cap_has_lnkctl(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_LNKCTL, cap[i++]);
+        if (pcie_cap_has_sltctl(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_SLTCTL, cap[i++]);
+        if (pcie_cap_has_rtctl(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_RTCTL, cap[i++]);
+        if (pcie_cap_has_devctl2(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, cap[i++]);
+        if (pcie_cap_has_lnkctl2(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_LNKCTL2, cap[i++]);
+        if (pcie_cap_has_sltctl2(dev->pcie_type, flags))
+                pci_write_config_word(dev, pos + PCI_EXP_SLTCTL2, cap[i++]);
 }
 
 
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index c7ad68b6c6d6..aa14482a4779 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -95,6 +95,9 @@ struct aer_broadcast_data {
 static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
                 enum pci_ers_result new)
 {
+        if (new == PCI_ERS_RESULT_NONE)
+                return orig;
+
         switch (orig) {
         case PCI_ERS_RESULT_CAN_RECOVER:
         case PCI_ERS_RESULT_RECOVERED:
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index b924e2463f85..091ce70051e0 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -200,7 +200,7 @@ static int slot_reset_iter(struct device *device, void *data)
 
 static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
 {
-        pci_ers_result_t status = PCI_ERS_RESULT_NONE;
+        pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED;
         int retval;
 
         /* If fatal, restore cfg space for possible link reset at upstream */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 8eb50dffb78a..e3c3e081b834 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1118,10 +1118,6 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
         return max;
 }
 
-void __attribute__((weak)) set_pci_bus_resources_arch_default(struct pci_bus *b)
-{
-}
-
 struct pci_bus * pci_create_bus(struct device *parent,
                 int bus, struct pci_ops *ops, void *sysdata)
 {
@@ -1180,8 +1176,6 @@ struct pci_bus * pci_create_bus(struct device *parent,
         b->resource[0] = &ioport_resource;
         b->resource[1] = &iomem_resource;
 
-        set_pci_bus_resources_arch_default(b);
-
         return b;
 
 dev_create_file_err:
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 0254741bece0..3067673d54f6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2033,6 +2033,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_di
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
 
 /* Disable MSI on chipsets that are known to not support it */
 static void __devinit quirk_disable_msi(struct pci_dev *dev)
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 8d9da9d30a61..a00f85471b6e 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -536,11 +536,13 @@ static void pci_bus_dump_res(struct pci_bus *bus)
 
         for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
                 struct resource *res = bus->resource[i];
-                if (!res)
+                if (!res || !res->end)
                         continue;
 
                 dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i,
-                           (res->flags & IORESOURCE_IO) ? "io: " : "mem:", res);
+                           (res->flags & IORESOURCE_IO) ? "io: " :
+                            ((res->flags & IORESOURCE_PREFETCH)? "pref mem":"mem:"),
+                           res);
         }
 }
 
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 21189447e545..fe95ce20bcbd 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -264,8 +264,8 @@ EXPORT_SYMBOL_GPL(pci_create_slot);
 
 /**
  * pci_renumber_slot - update %struct pci_slot -> number
- * @slot - %struct pci_slot to update
- * @slot_nr - new number for slot
+ * @slot: &struct pci_slot to update
+ * @slot_nr: new number for slot
  *
  * The primary purpose of this interface is to allow callers who earlier
  * created a placeholder slot in pci_create_slot() by passing a -1 as