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Diffstat (limited to 'arch/s390/pci/pci.c')
-rw-r--r--arch/s390/pci/pci.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 2b90a90aa81d..cf7485bdd7cf 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -620,6 +620,13 @@ static int zpci_alloc_domain(struct zpci_dev *zdev)
if (zpci_unique_uid) {
zdev->domain = (u16) zdev->uid;
+ if (zdev->domain == 0) {
+ pr_warn("UID checking is active but no UID is set for PCI function %08x, so automatic domain allocation is used instead\n",
+ zdev->fid);
+ update_uid_checking(false);
+ goto auto_allocate;
+ }
+
if (test_bit(zdev->domain, zpci_domain)) {
spin_unlock(&zpci_domain_lock);
pr_err("Adding PCI function %08x failed because domain %04x is already assigned\n",
@@ -631,6 +638,7 @@ static int zpci_alloc_domain(struct zpci_dev *zdev)
spin_unlock(&zpci_domain_lock);
return 0;
}
+auto_allocate:
/*
* We can always auto allocate domains below ZPCI_NR_DEVICES.
* There is either a free domain or we have reached the maximum in