From: "Cédric Le Goater" [ Upstream commit 11d49ce9f7946dfed4dcf5dbde865c78058b50ab ] pSeries machines on POWER9 processors can run with the XICS (legacy) interrupt mode or with the XIVE exploitation interrupt mode. These interrupt contollers have different interfaces for interrupt management : XICS uses hcalls and XIVE loads and stores on a page. H_EOI being a XICS interface the enable_scrq_irq() routine can fail when the machine runs in XIVE mode. Fix that by calling the EOI handler of the interrupt chip. Fixes: f23e0643cd0b ("ibmvnic: Clear pending interrupt after device reset") Signed-off-by: Cédric Le Goater Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/ibm/ibmvnic.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2731,12 +2731,10 @@ static int enable_scrq_irq(struct ibmvni if (adapter->resetting && adapter->reset_reason == VNIC_RESET_MOBILITY) { - u64 val = (0xff000000) | scrq->hw_irq; + struct irq_desc *desc = irq_to_desc(scrq->irq); + struct irq_chip *chip = irq_desc_get_chip(desc); - rc = plpar_hcall_norets(H_EOI, val); - if (rc) - dev_err(dev, "H_EOI FAILED irq 0x%llx. rc=%ld\n", - val, rc); + chip->irq_eoi(&desc->irq_data); } rc = plpar_hcall_norets(H_VIOCTL, adapter->vdev->unit_address,