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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
PCI: Remove pci_bus_b() and use list_for_each_entry() directly
Replace list_for_each() with list_for_each_entry(), which means we no
longer need pci_bus_b() and can remove it.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
authored by
Yijing Wang
and committed by
Bjorn Helgaas
94e6a9b9
560698e9
+8
-9
+3
-3
drivers/pci/pci.c
+3
-3
drivers/pci/pci.c
···
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*/
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unsigned char pci_bus_max_busnr(struct pci_bus* bus)
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{
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-
struct list_head *tmp;
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+
struct pci_bus *tmp;
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unsigned char max, n;
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max = bus->busn_res.end;
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-
list_for_each(tmp, &bus->children) {
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-
n = pci_bus_max_busnr(pci_bus_b(tmp));
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+
list_for_each_entry(tmp, &bus->children, node) {
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+
n = pci_bus_max_busnr(tmp);
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if(n > max)
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max = n;
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}
+5
-5
drivers/pci/search.c
+5
-5
drivers/pci/search.c
···
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static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)
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{
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-
struct pci_bus* child;
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struct list_head *tmp;
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+
struct pci_bus *child;
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struct pci_bus *tmp;
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if(bus->number == busnr)
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return bus;
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-
list_for_each(tmp, &bus->children) {
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-
child = pci_do_find_bus(pci_bus_b(tmp), busnr);
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+
list_for_each_entry(tmp, &bus->children, node) {
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+
child = pci_do_find_bus(tmp, busnr);
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if(child)
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return child;
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}
···
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down_read(&pci_bus_sem);
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n = from ? from->node.next : pci_root_buses.next;
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if (n != &pci_root_buses)
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-
b = pci_bus_b(n);
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+
b = list_entry(n, struct pci_bus, node);
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up_read(&pci_bus_sem);
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return b;
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}