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authorLinus Torvalds <torvalds@linux-foundation.org>2010-06-11 17:15:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-06-11 17:15:44 -0400
commiteda054770e5cd0e9ee1568dfcbcf39f9ade4f545 (patch)
tree60d29e2a3b095e9d14657cc6e02daba0a1b5f63d /drivers
parent891a9894ee2e17646b29117635d2c7adfb58ce60 (diff)
parent837c4ef13c44296bb763a0ca0e84a076592474cf (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: clear bridge resource range if BIOS assigned bad one PCI: hotplug/cpqphp, fix NULL dereference Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" PCI: change resource collision messages from KERN_ERR to KERN_INFO
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/hotplug/cpqphp_core.c7
-rw-r--r--drivers/pci/pci-sysfs.c37
-rw-r--r--drivers/pci/setup-res.c10
-rw-r--r--drivers/pci/slot.c48
4 files changed, 12 insertions, 90 deletions
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index b3e5580c837b..4952c3b9379d 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)
828 pci_name(pdev), err); 828 pci_name(pdev), err);
829 return err; 829 return err;
830 } 830 }
831
831 bus = pdev->subordinate; 832 bus = pdev->subordinate;
833 if (!bus) {
834 dev_notice(&pdev->dev, "the device is not a bridge, "
835 "skipping\n");
836 rc = -ENODEV;
837 goto err_disable_device;
838 }
832 839
833 /* Need to read VID early b/c it's used to differentiate CPQ and INTC 840 /* Need to read VID early b/c it's used to differentiate CPQ and INTC
834 * discovery 841 * discovery
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index afd2fbf7d797..c9957f68ac9b 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1035,39 +1035,6 @@ error:
1035 return retval; 1035 return retval;
1036} 1036}
1037 1037
1038static void pci_remove_slot_links(struct pci_dev *dev)
1039{
1040 char func[10];
1041 struct pci_slot *slot;
1042
1043 sysfs_remove_link(&dev->dev.kobj, "slot");
1044 list_for_each_entry(slot, &dev->bus->slots, list) {
1045 if (slot->number != PCI_SLOT(dev->devfn))
1046 continue;
1047 snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
1048 sysfs_remove_link(&slot->kobj, func);
1049 }
1050}
1051
1052static int pci_create_slot_links(struct pci_dev *dev)
1053{
1054 int result = 0;
1055 char func[10];
1056 struct pci_slot *slot;
1057
1058 list_for_each_entry(slot, &dev->bus->slots, list) {
1059 if (slot->number != PCI_SLOT(dev->devfn))
1060 continue;
1061 result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot");
1062 if (result)
1063 goto out;
1064 snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
1065 result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func);
1066 }
1067out:
1068 return result;
1069}
1070
1071int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) 1038int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
1072{ 1039{
1073 int retval; 1040 int retval;
@@ -1130,8 +1097,6 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
1130 if (retval) 1097 if (retval)
1131 goto err_vga_file; 1098 goto err_vga_file;
1132 1099
1133 pci_create_slot_links(pdev);
1134
1135 return 0; 1100 return 0;
1136 1101
1137err_vga_file: 1102err_vga_file:
@@ -1181,8 +1146,6 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev)
1181 if (!sysfs_initialized) 1146 if (!sysfs_initialized)
1182 return; 1147 return;
1183 1148
1184 pci_remove_slot_links(pdev);
1185
1186 pci_remove_capabilities_sysfs(pdev); 1149 pci_remove_capabilities_sysfs(pdev);
1187 1150
1188 if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) 1151 if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE)
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 17bed18d24ad..92379e2d37e7 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)
97 97
98 root = pci_find_parent_resource(dev, res); 98 root = pci_find_parent_resource(dev, res);
99 if (!root) { 99 if (!root) {
100 dev_err(&dev->dev, "no compatible bridge window for %pR\n", 100 dev_info(&dev->dev, "no compatible bridge window for %pR\n",
101 res); 101 res);
102 return -EINVAL; 102 return -EINVAL;
103 } 103 }
104 104
105 conflict = request_resource_conflict(root, res); 105 conflict = request_resource_conflict(root, res);
106 if (conflict) { 106 if (conflict) {
107 dev_err(&dev->dev, 107 dev_info(&dev->dev,
108 "address space collision: %pR conflicts with %s %pR\n", 108 "address space collision: %pR conflicts with %s %pR\n",
109 res, conflict->name, conflict); 109 res, conflict->name, conflict);
110 return -EBUSY; 110 return -EBUSY;
111 } 111 }
112 112
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index e0189cf7c558..659eaa0fc48f 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)
97 return bus_speed_read(slot->bus->cur_bus_speed, buf); 97 return bus_speed_read(slot->bus->cur_bus_speed, buf);
98} 98}
99 99
100static void remove_sysfs_files(struct pci_slot *slot)
101{
102 char func[10];
103 struct list_head *tmp;
104
105 list_for_each(tmp, &slot->bus->devices) {
106 struct pci_dev *dev = pci_dev_b(tmp);
107 if (PCI_SLOT(dev->devfn) != slot->number)
108 continue;
109 sysfs_remove_link(&dev->dev.kobj, "slot");
110
111 snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
112 sysfs_remove_link(&slot->kobj, func);
113 }
114}
115
116static int create_sysfs_files(struct pci_slot *slot)
117{
118 int result;
119 char func[10];
120 struct list_head *tmp;
121
122 list_for_each(tmp, &slot->bus->devices) {
123 struct pci_dev *dev = pci_dev_b(tmp);
124 if (PCI_SLOT(dev->devfn) != slot->number)
125 continue;
126
127 result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot");
128 if (result)
129 goto fail;
130
131 snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
132 result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func);
133 if (result)
134 goto fail;
135 }
136
137 return 0;
138
139fail:
140 remove_sysfs_files(slot);
141 return result;
142}
143
144static void pci_slot_release(struct kobject *kobj) 100static void pci_slot_release(struct kobject *kobj)
145{ 101{
146 struct pci_dev *dev; 102 struct pci_dev *dev;
@@ -153,8 +109,6 @@ static void pci_slot_release(struct kobject *kobj)
153 if (PCI_SLOT(dev->devfn) == slot->number) 109 if (PCI_SLOT(dev->devfn) == slot->number)
154 dev->slot = NULL; 110 dev->slot = NULL;
155 111
156 remove_sysfs_files(slot);
157
158 list_del(&slot->list); 112 list_del(&slot->list);
159 113
160 kfree(slot); 114 kfree(slot);
@@ -346,8 +300,6 @@ placeholder:
346 INIT_LIST_HEAD(&slot->list); 300 INIT_LIST_HEAD(&slot->list);
347 list_add(&slot->list, &parent->slots); 301 list_add(&slot->list, &parent->slots);
348 302
349 create_sysfs_files(slot);
350
351 list_for_each_entry(dev, &parent->devices, bus_list) 303 list_for_each_entry(dev, &parent->devices, bus_list)
352 if (PCI_SLOT(dev->devfn) == slot_nr) 304 if (PCI_SLOT(dev->devfn) == slot_nr)
353 dev->slot = slot; 305 dev->slot = slot;