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powerpc/eeh_cache: Don't use pci_dn when inserting new ranges

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At the point where we start inserting ranges into the EEH address cache the
binding between pci_dev and eeh_dev has already been set up. Instead of
consulting the pci_dn tree we can retrieve the eeh_dev directly using
pci_dev_to_eeh_dev().

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>
Tested-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190715085612.8802-2-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2019-07-15 18:56:08 +10:00 committed by Michael Ellerman
parent 49ce94b867
commit b1268f4cdb
1 changed files with 1 additions and 9 deletions
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10
arch/powerpc/kernel/eeh_cache.c
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@ -159,18 +159,10 @@ eeh_addr_cache_insert(struct pci_dev *dev, resource_size_t alo,
static void __eeh_addr_cache_insert_dev(struct pci_dev *dev) static void __eeh_addr_cache_insert_dev(struct pci_dev *dev)
{ {
struct pci_dn *pdn;
struct eeh_dev *edev; struct eeh_dev *edev;
int i; int i;
pdn = pci_get_pdn_by_devfn(dev->bus, dev->devfn); edev = pci_dev_to_eeh_dev(dev);
if (!pdn) {
pr_warn("PCI: no pci dn found for dev=%s\n",
pci_name(dev));
return;
}
edev = pdn_to_eeh_dev(pdn);
if (!edev) { if (!edev) {
pr_warn("PCI: no EEH dev found for %s\n", pr_warn("PCI: no EEH dev found for %s\n",
pci_name(dev)); pci_name(dev));