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x86/pci: Reorder pci_mmcfg_arch_map() definition before calls

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The typical style is to define functions before calling them.  Move
pci_mmcfg_arch_map() and pci_mmcfg_arch_unmap() earlier so they're defined
before they're called.  No functional change intended.

Link: https://lore.kernel.org/r/20231121183643.249006-10-helgaas@kernel.org
Tested-by: Tomasz Pala <gotar@polanet.pl>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2023-11-21 12:36:43 -06:00
parent f126598326
commit 1dfc86af06
1 changed files with 19 additions and 19 deletions
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38
arch/x86/pci/mmconfig_64.c
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@ -111,6 +111,25 @@ static void __iomem *mcfg_ioremap(struct pci_mmcfg_region *cfg)
return addr;
}
int pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg)
{
cfg->virt = mcfg_ioremap(cfg);
if (!cfg->virt) {
pr_err("can't map ECAM at %pR\n", &cfg->res);
return -ENOMEM;
}
return 0;
}
void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg)
{
if (cfg && cfg->virt) {
iounmap(cfg->virt + PCI_MMCFG_BUS_OFFSET(cfg->start_bus));
cfg->virt = NULL;
}
}
int __init pci_mmcfg_arch_init(void)
{
struct pci_mmcfg_region *cfg;
@ -133,22 +152,3 @@ void __init pci_mmcfg_arch_free(void)
list_for_each_entry(cfg, &pci_mmcfg_list, list)
pci_mmcfg_arch_unmap(cfg);
}
int pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg)
{
cfg->virt = mcfg_ioremap(cfg);
if (!cfg->virt) {
pr_err("can't map ECAM at %pR\n", &cfg->res);
return -ENOMEM;
}
return 0;
}
void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg)
{
if (cfg && cfg->virt) {
iounmap(cfg->virt + PCI_MMCFG_BUS_OFFSET(cfg->start_bus));
cfg->virt = NULL;
}
}