From: Sukadev Bhattiprolu Date: Fri, 29 Oct 2021 22:03:15 +0000 (-0700) Subject: ibmvnic: Process crqs after enabling interrupts X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6e20d00158f31f7631d68b86996b7e951c4451c8;p=linux.git ibmvnic: Process crqs after enabling interrupts Soon after registering a CRQ it is possible that we get a fail over or maybe a CRQ_INIT from the VIOS while interrupts were disabled. Look for any such CRQs after enabling interrupts. Otherwise we can intermittently fail to bring up ibmvnic adapters during boot, specially in kexec/kdump kernels. Fixes: 032c5e82847a ("Driver for IBM System i/p VNIC protocol") Reported-by: Vaishnavi Bhat Signed-off-by: Sukadev Bhattiprolu Reviewed-by: Dany Madden Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 7438138c3766a..84961a83803b7 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -5412,6 +5412,9 @@ static int init_crq_queue(struct ibmvnic_adapter *adapter) crq->cur = 0; spin_lock_init(&crq->lock); + /* process any CRQs that were queued before we enabled interrupts */ + tasklet_schedule(&adapter->tasklet); + return retrc; req_irq_failed: