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lantiq: fix pci with kernel 4.9

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Commit 23dac14d058f ("MIPS: PCI: Use struct list_head lists") changed
the controller list from reverse to straight order. Use the last entry
in the controller list to get the fist conroller of the system.

Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Mathias Kresin 2017-03-10 22:46:30 +01:00
parent 2f8d086baa
commit e4c53c751e
1 changed files with 3 additions and 2 deletions
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5
target/linux/lantiq/patches-4.9/0001-MIPS-lantiq-add-pcie-driver.patch
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@ -4143,7 +4143,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -300,3 +300,30 @@ char *__init pcibios_setup(char *str)
@@ -300,3 +300,31 @@ char *__init pcibios_setup(char *str)
return pcibios_plat_setup(str);
return str;
}
@ -4164,7 +4164,8 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ int bus_nr = 0;
+ struct pci_controller *hose;
+
+ hose = list_first_entry_or_null(&controllers, struct pci_controller, list);
+ if (!list_empty(&controllers))
+ hose = list_last_entry(&controllers, struct pci_controller, list);
+
+ if (hose != NULL) {
+ if (hose->bus != NULL) {