From mboxrd@z Thu Jan 1 00:00:00 1970 From: rrichter@cavium.com (Robert Richter) Date: Wed, 1 Feb 2017 18:38:30 +0100 Subject: [PATCH 6/9] irqchip/gic-v3-its: Prevent its init ordering dependencies In-Reply-To: <20170201173833.12630-1-rrichter@cavium.com> References: <20170201173833.12630-1-rrichter@cavium.com> Message-ID: <20170201173833.12630-7-rrichter@cavium.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Right now its_init() must be called before pci and platform init. Remove ordering dependencies to allow all initialization functions being called with the same initcall type. Signed-off-by: Robert Richter --- drivers/irqchip/irq-gic-v3-its-pci-msi.c | 4 +++- drivers/irqchip/irq-gic-v3-its-platform-msi.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c index dace9bc4ef8d..afe78f224181 100644 --- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c @@ -77,6 +77,8 @@ static int its_pci_msi_prepare(struct irq_domain *domain, struct device *dev, return -EINVAL; msi_info = msi_get_domain_info(domain->parent); + if (!msi_info) + return -ENODEV; pdev = to_pci_dev(dev); dev_alias.pdev = pdev; @@ -113,7 +115,7 @@ static int __init its_pci_msi_init_one(struct fwnode_handle *handle, struct irq_domain *parent; parent = irq_find_matching_fwnode(handle, DOMAIN_BUS_NEXUS); - if (!parent || !msi_get_domain_info(parent)) { + if (!parent) { pr_err("%s: Unable to locate ITS domain\n", name); return -ENXIO; } diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c index 7d8c19973766..22ba1dfed8ba 100644 --- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c @@ -32,6 +32,8 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev, int ret, index = 0; msi_info = msi_get_domain_info(domain->parent); + if (!msi_info) + return -ENODEV; /* Suck the DeviceID out of the msi-parent property */ do { @@ -84,7 +86,7 @@ static int __init its_pmsi_init(void) continue; parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS); - if (!parent || !msi_get_domain_info(parent)) { + if (!parent) { pr_err("%s: unable to locate ITS domain\n", np->full_name); continue; -- 2.11.0