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PCI: generic: Simplify host bridge window iteration 

The switch is the only statement in the resource_list_for_each_entry()
loop, so remove unnecessary "continue" statements in the switch.  Remove
unnecessary "goto" statements and label.  Simplify checking for the
required non-prefetchable memory aperture.

No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2016-05-28 18:28:51 -05:00
parent b7f957ac27
commit 5aa182a26c
1 changed files with 7 additions and 15 deletions
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20
drivers/pci/host/pci-host-common.c
View File

@ -38,7 +38,7 @@ static int gen_pci_parse_request_of_pci_ranges(struct device *dev,
err = devm_request_pci_bus_resources(dev, resources);
if (err)
goto out_release_res;
return err;
resource_list_for_each_entry(win, resources) {
struct resource *res = win->res;
@ -46,32 +46,24 @@ static int gen_pci_parse_request_of_pci_ranges(struct device *dev,
switch (resource_type(res)) {
case IORESOURCE_IO:
err = pci_remap_iospace(res, iobase);
if (err) {
if (err)
dev_warn(dev, "error %d: failed to map resource %pR\n",
err, res);
continue;
}
break;
case IORESOURCE_MEM:
res_valid |= !(res->flags & IORESOURCE_PREFETCH);
break;
case IORESOURCE_BUS:
*bus_range = res;
default:
continue;
break;
}
}
if (!res_valid) {
dev_err(dev, "non-prefetchable memory resource required\n");
err = -EINVAL;
goto out_release_res;
}
if (res_valid)
return 0;
out_release_res:
return err;
dev_err(dev, "non-prefetchable memory resource required\n");
return -EINVAL;
}
static void gen_pci_unmap_cfg(void *ptr)