On Tue, 6 Sep 2016, Tomasz Nowicki wrote:
> -static int __init its_pci_msi_init(void)
> +static int __init its_pci_msi_init_one(struct fwnode_handle *handle,
> + const char *name)
> {
> - struct device_node *np;
> struct irq_domain *parent;
>
> + parent = irq_find_matching_fwnode(handle, DOMAIN_BUS_NEXUS);
> + if (!parent || !msi_get_domain_info(parent)) {
> + pr_err("%s: Unable to locate ITS domain\n", name);
> + return -ENXIO;
> + }
> +
> + if (!pci_msi_create_irq_domain(handle, &its_pci_msi_domain_info,
> + parent)) {
> + pr_err("%s: Unable to create PCI domain\n", name);
> + return -ENOMEM;
So you have error codes here.
> + }
> +
> + return 0;
> +}
> +
> +static int __init its_pci_of_msi_init(void)
> +{
> + struct device_node *np;
> +
> for (np = of_find_matching_node(NULL, its_device_id); np;
> np = of_find_matching_node(np, its_device_id)) {
> if (!of_property_read_bool(np, "msi-controller"))
> continue;
>
> - parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS);
> - if (!parent || !msi_get_domain_info(parent)) {
> - pr_err("%s: unable to locate ITS domain\n",
> - np->full_name);
> + if (its_pci_msi_init_one(of_node_to_fwnode(np), np->full_name))
> continue;
> - }
> -
> - if (!pci_msi_create_irq_domain(of_node_to_fwnode(np),
> - &its_pci_msi_domain_info,
> - parent)) {
> - pr_err("%s: unable to create PCI domain\n",
> - np->full_name);
> - continue;
> - }
>
> pr_info("PCI/MSI: %s domain created\n", np->full_name);
> }
>
> return 0;
And no matter what you return success
> }
> +
> +static int __init its_pci_msi_init(void)
> +{
> + its_pci_of_msi_init();
Which you subsequently ignore here. What's the point?
Thanks,
tglx
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