diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-pci | 40 | ||||
| -rw-r--r-- | arch/microblaze/pci/pci-common.c | 1 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2305/pci-asb2305.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 1 | ||||
| -rw-r--r-- | arch/x86/pci/i386.c | 2 | ||||
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_core.c | 7 | ||||
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 37 | ||||
| -rw-r--r-- | drivers/pci/setup-res.c | 10 | ||||
| -rw-r--r-- | drivers/pci/slot.c | 48 |
9 files changed, 17 insertions, 130 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 428676c..25be325 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -133,46 +133,6 @@ Description: The symbolic link points to the PCI device sysfs entry of the Physical Function this device associates with. - -What: /sys/bus/pci/slots/... -Date: April 2005 (possibly older) -KernelVersion: 2.6.12 (possibly older) -Contact: linux-pci@vger.kernel.org -Description: - When the appropriate driver is loaded, it will create a - directory per claimed physical PCI slot in - /sys/bus/pci/slots/. The names of these directories are - specific to the driver, which in turn, are specific to the - platform, but in general, should match the label on the - machine's physical chassis. - - The drivers that can create slot directories include the - PCI hotplug drivers, and as of 2.6.27, the pci_slot driver. - - The slot directories contain, at a minimum, a file named - 'address' which contains the PCI bus:device:function tuple. - Other files may appear as well, but are specific to the - driver. - -What: /sys/bus/pci/slots/.../function[0-7] -Date: March 2010 -KernelVersion: 2.6.35 -Contact: linux-pci@vger.kernel.org -Description: - If PCI slot directories (as described above) are created, - and the physical slot is actually populated with a device, - symbolic links in the slot directory pointing to the - device's PCI functions are created as well. - -What: /sys/bus/pci/devices/.../slot -Date: March 2010 -KernelVersion: 2.6.35 -Contact: linux-pci@vger.kernel.org -Description: - If PCI slot directories (as described above) are created, - a symbolic link pointing to the slot directory will be - created as well. - What: /sys/bus/pci/slots/.../module Date: June 2009 Contact: linux-pci@vger.kernel.org diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 9cb782b..23be25f 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1277,6 +1277,7 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus) printk(KERN_WARNING "PCI: Cannot allocate resource region " "%d of PCI bridge %d, will remap\n", i, bus->number); clear_resource: + res->start = res->end = 0; res->flags = 0; } diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c index d6119b8..45b40ac 100644 --- a/arch/mn10300/unit-asb2305/pci-asb2305.c +++ b/arch/mn10300/unit-asb2305/pci-asb2305.c @@ -117,6 +117,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) * Invalidate the resource to prevent * child resource allocations in this * range. */ + r->start = r->end = 0; r->flags = 0; } } diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 6646005..5b38f6a 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1309,6 +1309,7 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus) printk(KERN_WARNING "PCI: Cannot allocate resource region " "%d of PCI bridge %d, will remap\n", i, bus->number); clear_resource: + res->start = res->end = 0; res->flags = 0; } diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 97da2ba..6fdb3ec 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -96,6 +96,7 @@ EXPORT_SYMBOL(pcibios_align_resource); * the fact the PCI specs explicitly allow address decoders to be * shared between expansion ROMs and other resource regions, it's * at least dangerous) + * - bad resource sizes or overlaps with other regions * * Our solution: * (1) Allocate resources for all buses behind PCI-to-PCI bridges. @@ -136,6 +137,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) * child resource allocations in this * range. */ + r->start = r->end = 0; r->flags = 0; } } diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index b3e5580..4952c3b 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -828,7 +828,14 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_name(pdev), err); return err; } + bus = pdev->subordinate; + if (!bus) { + dev_notice(&pdev->dev, "the device is not a bridge, " + "skipping\n"); + rc = -ENODEV; + goto err_disable_device; + } /* Need to read VID early b/c it's used to differentiate CPQ and INTC * discovery diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index afd2fbf..c9957f6 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -1035,39 +1035,6 @@ error: return retval; } -static void pci_remove_slot_links(struct pci_dev *dev) -{ - char func[10]; - struct pci_slot *slot; - - sysfs_remove_link(&dev->dev.kobj, "slot"); - list_for_each_entry(slot, &dev->bus->slots, list) { - if (slot->number != PCI_SLOT(dev->devfn)) - continue; - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - sysfs_remove_link(&slot->kobj, func); - } -} - -static int pci_create_slot_links(struct pci_dev *dev) -{ - int result = 0; - char func[10]; - struct pci_slot *slot; - - list_for_each_entry(slot, &dev->bus->slots, list) { - if (slot->number != PCI_SLOT(dev->devfn)) - continue; - result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot"); - if (result) - goto out; - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func); - } -out: - return result; -} - int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) { int retval; @@ -1130,8 +1097,6 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) if (retval) goto err_vga_file; - pci_create_slot_links(pdev); - return 0; err_vga_file: @@ -1181,8 +1146,6 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev) if (!sysfs_initialized) return; - pci_remove_slot_links(pdev); - pci_remove_capabilities_sysfs(pdev); if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 17bed18..92379e2 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -97,16 +97,16 @@ int pci_claim_resource(struct pci_dev *dev, int resource) root = pci_find_parent_resource(dev, res); if (!root) { - dev_err(&dev->dev, "no compatible bridge window for %pR\n", - res); + dev_info(&dev->dev, "no compatible bridge window for %pR\n", + res); return -EINVAL; } conflict = request_resource_conflict(root, res); if (conflict) { - dev_err(&dev->dev, - "address space collision: %pR conflicts with %s %pR\n", - res, conflict->name, conflict); + dev_info(&dev->dev, + "address space collision: %pR conflicts with %s %pR\n", + res, conflict->name, conflict); return -EBUSY; } diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index e0189cf..659eaa0 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -97,50 +97,6 @@ static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf) return bus_speed_read(slot->bus->cur_bus_speed, buf); } -static void remove_sysfs_files(struct pci_slot *slot) -{ - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - sysfs_remove_link(&dev->dev.kobj, "slot"); - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - sysfs_remove_link(&slot->kobj, func); - } -} - -static int create_sysfs_files(struct pci_slot *slot) -{ - int result; - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - - result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot"); - if (result) - goto fail; - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func); - if (result) - goto fail; - } - - return 0; - -fail: - remove_sysfs_files(slot); - return result; -} - static void pci_slot_release(struct kobject *kobj) { struct pci_dev *dev; @@ -153,8 +109,6 @@ static void pci_slot_release(struct kobject *kobj) if (PCI_SLOT(dev->devfn) == slot->number) dev->slot = NULL; - remove_sysfs_files(slot); - list_del(&slot->list); kfree(slot); @@ -346,8 +300,6 @@ placeholder: INIT_LIST_HEAD(&slot->list); list_add(&slot->list, &parent->slots); - create_sysfs_files(slot); - list_for_each_entry(dev, &parent->devices, bus_list) if (PCI_SLOT(dev->devfn) == slot_nr) dev->slot = slot; |
