> From: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Sent: Friday, November 11, 2022 9:57 PM > > @@ -597,7 +598,7 @@ static struct irq_domain *msi_get_device > if (!domain) > return NULL; > > - if (WARN_ON_ONCE(irq_domain_is_msi_parent(domain))) > + if (irq_domain_is_msi_parent(domain)) > return NULL; Is it intended to remove the warning here? If yes, what specific change in this patch leads to that removal? > + xa_for_each_range(xa, idx, desc, ctrl->first + base, ctrl->last + base) { > + if (!msi_desc_match(desc, MSI_DESC_NOTASSOCIATED)) > + continue; > + > + /* This should return -ECONFUSED... */ > + if (WARN_ON_ONCE(allocated >= ctrl->nirqs)) > + return -EINVAL; > + why is "==" an error?