Messages in this thread Patch in this message | | | From | Sergio Paracuellos <> | Subject | [PATCH v3 1/5] PCI: Let pcibios_root_bridge_prepare() access to 'bridge->windows' | Date | Tue, 7 Dec 2021 11:49:20 +0100 |
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When function pci_register_host_bridge() is called, 'bridge->windows' are already available. However this windows are being moved temporarily from there. To let pcibios_root_bridge_prepare() to have access to this windows move this windows movement after call this function. This is interesting for MIPS ralink mt7621 platform to be able to properly set I/O coherence units with this information and avoid custom MIPS code in generic PCIe controller drivers.
Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> --- drivers/pci/probe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 087d3658f75c..372a70efccc6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -898,8 +898,6 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) bridge->bus = bus; - /* Temporarily move resources off the list */ - list_splice_init(&bridge->windows, &resources); bus->sysdata = bridge->sysdata; bus->ops = bridge->ops; bus->number = bus->busn_res.start = bridge->busnr; @@ -925,6 +923,8 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) if (err) goto free; + /* Temporarily move resources off the list */ + list_splice_init(&bridge->windows, &resources); err = device_add(&bridge->dev); if (err) { put_device(&bridge->dev); -- 2.33.0
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