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-rw-r--r--drivers/pci/hotplug.c109
-rw-r--r--drivers/pci/pci.h27
2 files changed, 0 insertions, 136 deletions
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
index 021d0f76bc4c..6a1a976c4bff 100644
--- a/drivers/pci/hotplug.c
+++ b/drivers/pci/hotplug.c
@@ -56,112 +56,3 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
56 56
57 return 0; 57 return 0;
58} 58}
59
60static int pci_visit_bus (struct pci_visit * fn, struct pci_bus_wrapped *wrapped_bus, struct pci_dev_wrapped *wrapped_parent)
61{
62 struct list_head *ln;
63 struct pci_dev *dev;
64 struct pci_dev_wrapped wrapped_dev;
65 int result = 0;
66
67 pr_debug("PCI: Scanning bus %04x:%02x\n", pci_domain_nr(wrapped_bus->bus),
68 wrapped_bus->bus->number);
69
70 if (fn->pre_visit_pci_bus) {
71 result = fn->pre_visit_pci_bus(wrapped_bus, wrapped_parent);
72 if (result)
73 return result;
74 }
75
76 ln = wrapped_bus->bus->devices.next;
77 while (ln != &wrapped_bus->bus->devices) {
78 dev = pci_dev_b(ln);
79 ln = ln->next;
80
81 memset(&wrapped_dev, 0, sizeof(struct pci_dev_wrapped));
82 wrapped_dev.dev = dev;
83
84 result = pci_visit_dev(fn, &wrapped_dev, wrapped_bus);
85 if (result)
86 return result;
87 }
88
89 if (fn->post_visit_pci_bus)
90 result = fn->post_visit_pci_bus(wrapped_bus, wrapped_parent);
91
92 return result;
93}
94
95static int pci_visit_bridge (struct pci_visit * fn,
96 struct pci_dev_wrapped *wrapped_dev,
97 struct pci_bus_wrapped *wrapped_parent)
98{
99 struct pci_bus *bus;
100 struct pci_bus_wrapped wrapped_bus;
101 int result = 0;
102
103 pr_debug("PCI: Scanning bridge %s\n", pci_name(wrapped_dev->dev));
104
105 if (fn->visit_pci_dev) {
106 result = fn->visit_pci_dev(wrapped_dev, wrapped_parent);
107 if (result)
108 return result;
109 }
110
111 bus = wrapped_dev->dev->subordinate;
112 if (bus) {
113 memset(&wrapped_bus, 0, sizeof(struct pci_bus_wrapped));
114 wrapped_bus.bus = bus;
115
116 result = pci_visit_bus(fn, &wrapped_bus, wrapped_dev);
117 }
118 return result;
119}
120
121/**
122 * pci_visit_dev - scans the pci buses.
123 * @fn: callback functions that are called while visiting
124 * @wrapped_dev: the device to scan
125 * @wrapped_parent: the bus where @wrapped_dev is connected to
126 *
127 * Every bus and every function is presented to a custom
128 * function that can act upon it.
129 */
130int pci_visit_dev(struct pci_visit *fn, struct pci_dev_wrapped *wrapped_dev,
131 struct pci_bus_wrapped *wrapped_parent)
132{
133 struct pci_dev* dev = wrapped_dev ? wrapped_dev->dev : NULL;
134 int result = 0;
135
136 if (!dev)
137 return 0;
138
139 if (fn->pre_visit_pci_dev) {
140 result = fn->pre_visit_pci_dev(wrapped_dev, wrapped_parent);
141 if (result)
142 return result;
143 }
144
145 switch (dev->class >> 8) {
146 case PCI_CLASS_BRIDGE_PCI:
147 result = pci_visit_bridge(fn, wrapped_dev,
148 wrapped_parent);
149 if (result)
150 return result;
151 break;
152 default:
153 pr_debug("PCI: Scanning device %s\n", pci_name(dev));
154 if (fn->visit_pci_dev) {
155 result = fn->visit_pci_dev (wrapped_dev,
156 wrapped_parent);
157 if (result)
158 return result;
159 }
160 }
161
162 if (fn->post_visit_pci_dev)
163 result = fn->post_visit_pci_dev(wrapped_dev, wrapped_parent);
164
165 return result;
166}
167EXPORT_SYMBOL(pci_visit_dev);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 79cdc16c52c8..744da0d4ae5f 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -32,33 +32,6 @@ extern unsigned char pci_max_busnr(void);
32extern unsigned char pci_bus_max_busnr(struct pci_bus *bus); 32extern unsigned char pci_bus_max_busnr(struct pci_bus *bus);
33extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap); 33extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
34 34
35struct pci_dev_wrapped {
36 struct pci_dev *dev;
37 void *data;
38};
39
40struct pci_bus_wrapped {
41 struct pci_bus *bus;
42 void *data;
43};
44
45struct pci_visit {
46 int (* pre_visit_pci_bus) (struct pci_bus_wrapped *,
47 struct pci_dev_wrapped *);
48 int (* post_visit_pci_bus) (struct pci_bus_wrapped *,
49 struct pci_dev_wrapped *);
50
51 int (* pre_visit_pci_dev) (struct pci_dev_wrapped *,
52 struct pci_bus_wrapped *);
53 int (* visit_pci_dev) (struct pci_dev_wrapped *,
54 struct pci_bus_wrapped *);
55 int (* post_visit_pci_dev) (struct pci_dev_wrapped *,
56 struct pci_bus_wrapped *);
57};
58
59extern int pci_visit_dev(struct pci_visit *fn,
60 struct pci_dev_wrapped *wrapped_dev,
61 struct pci_bus_wrapped *wrapped_parent);
62extern void pci_remove_legacy_files(struct pci_bus *bus); 35extern void pci_remove_legacy_files(struct pci_bus *bus);
63 36
64/* Lock for read/write access to pci device and bus lists */ 37/* Lock for read/write access to pci device and bus lists */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 18:11:33 -0500