Simplify postscan_setup_bridge() by folding limit setting code into a
loop. No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/pci/pci.c | 26 +++++++-------------------
1 file changed, 7 insertions(+), 19 deletions(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 02b7f091f7..b5e13e5dbc 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -330,28 +330,16 @@ static void prescan_setup_bridge(struct pci_dev *dev)
static void postscan_setup_bridge(struct pci_dev *dev)
{
+ int r;
+
/* limit subordinate to last used bus number */
pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, last[PCI_BUS_RESOURCE_BUSN] - 1);
- if (last[PCI_BUS_RESOURCE_MEM]) {
- last[PCI_BUS_RESOURCE_MEM] = ALIGN(last[PCI_BUS_RESOURCE_MEM], SZ_1M);
- pr_debug("bridge NP limit at %pa\n", &last[PCI_BUS_RESOURCE_MEM]);
- pci_set_limit(dev, PCI_BUS_RESOURCE_MEM,
- last[PCI_BUS_RESOURCE_MEM] - 1);
- }
-
- if (last[PCI_BUS_RESOURCE_MEM_PREF]) {
- last[PCI_BUS_RESOURCE_MEM_PREF] = ALIGN(last[PCI_BUS_RESOURCE_MEM_PREF], SZ_1M);
- pr_debug("bridge P limit at %pa\n", &last[PCI_BUS_RESOURCE_MEM_PREF]);
- pci_set_limit(dev, PCI_BUS_RESOURCE_MEM_PREF,
- last[PCI_BUS_RESOURCE_MEM_PREF] - 1);
- }
-
- if (last[PCI_BUS_RESOURCE_IO]) {
- last[PCI_BUS_RESOURCE_IO] = ALIGN(last[PCI_BUS_RESOURCE_IO], SZ_4K);
- pr_debug("bridge IO limit at %pa\n", &last[PCI_BUS_RESOURCE_IO]);
- pci_set_limit(dev, PCI_BUS_RESOURCE_IO,
- last[PCI_BUS_RESOURCE_IO] - 1);
+ for (r = PCI_BUS_RESOURCE_IO; r <= PCI_BUS_RESOURCE_MEM_PREF; r++) {
+ if (last[r]) {
+ last[r] = ALIGN(last[r], pci_resource_to_alignment(r));
+ pci_set_limit(dev, r, last[r] - 1);
+ }
}
}
--
2.20.1
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