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Diffstat (limited to 'drivers/misc/cxl/vphb.c')
| -rw-r--r-- | drivers/misc/cxl/vphb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c index c8a759f4ccfa..8865e8d9b3c5 100644 --- a/drivers/misc/cxl/vphb.c +++ b/drivers/misc/cxl/vphb.c @@ -188,6 +188,17 @@ int cxl_pci_vphb_add(struct cxl_afu *afu) struct device_node *vphb_dn; struct device *parent; + /* + * If there are no AFU configuration records we won't have anything to + * expose under the vPHB, so skip creating one, returning success since + * this is still a valid case. This will also opt us out of EEH + * handling since we won't have anything special to do if there are no + * kernel drivers attached to the vPHB, and EEH handling is not yet + * supported in the peer model. + */ + if (!afu->crs_num) + return 0; + /* The parent device is the adapter. Reuse the device node of * the adapter. * We don't seem to care what device node is used for the vPHB, |