openwrt/target/linux/generic/patches-4.9/170-MIPS-PCI-add-controllers-before-the-specified-head.patch
Mathias Kresin 136718a3d9 kernel: update MIPS pci fix to the accepted version
Fix the list order instead of adjusting the controller scan order.
Revert the former required changes to the lantiq PCIe driver.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-04-08 14:30:00 +02:00

32 lines
1011 B
Diff

From: Mathias Kresin <dev@kresin.me>
Date: Sun, 26 Mar 2017 19:05:36 +0200
Subject: MIPS: PCI: add controllers before the specified head
With commit 23dac14d058f ("MIPS: PCI: Use struct list_head lists") new
controllers are added after the specified head where they were added
before the specified head previously.
Use list_add_tail to restore the former order.
This patches fixes the following PCI error on lantiq:
pci 0000:01:00.0: BAR 0: error updating (0x1c000004 != 0x000000)
Fixes: 23dac14d058f ("MIPS: PCI: Use struct list_head lists")
Signed-off-by: Mathias Kresin <dev@kresin.me>
---
arch/mips/pci/pci-legacy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -190,7 +190,7 @@ void register_pci_controller(struct pci_
}
INIT_LIST_HEAD(&hose->list);
- list_add(&hose->list, &controllers);
+ list_add_tail(&hose->list, &controllers);
/*
* Do not panic here but later - this might happen before console init.