Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull IRQ fixes from Ingo Molnar:
 "Mostly irqchip driver fixes, but also an irq core crash fix and a
  build fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mxs: Add missing set_handle_irq()
  irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
  irqchip/gic-v3-its: Recompute the number of pages on page size change
  base: Export platform_msi_domain_[alloc,free]_irqs
  of: MSI: Simplify irqdomain lookup
  irqdomain: Allow domain lookup with DOMAIN_BUS_WIRED token
  irqchip: Fix dependencies for archs w/o HAS_IOMEM
  irqchip/s3c24xx: Mark init_eint as __maybe_unused
  genirq: Validate action before dereferencing it in handle_irq_event_percpu()

7 files changed, 15 insertions, 19 deletions

diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 47c4338..279e539 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -284,6 +284,7 @@ out_free_priv_data:
 
 	return err;
 }
+EXPORT_SYMBOL_GPL(platform_msi_domain_alloc_irqs);
 
 /**
  * platform_msi_domain_free_irqs - Free MSI interrupts for @dev
@@ -301,6 +302,7 @@ void platform_msi_domain_free_irqs(struct device *dev)
 	msi_domain_free_irqs(dev->msi_domain, dev);
 	platform_msi_free_descs(dev, 0, MAX_DEV_MSIS);
 }
+EXPORT_SYMBOL_GPL(platform_msi_domain_free_irqs);
 
 /**
  * platform_msi_get_host_data - Query the private data associated with
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 715923d..fb50911 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -159,6 +159,7 @@ config TB10X_IRQC
 config TS4800_IRQ
 	tristate "TS-4800 IRQ controller"
 	select IRQ_DOMAIN
+	depends on HAS_IOMEM
 	help
 	  Support for the TS-4800 FPGA IRQ controller
 
diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index b12a5d5..37199b9 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -86,7 +86,7 @@ int aic_common_set_priority(int priority, unsigned *val)
 	    priority > AT91_AIC_IRQ_MAX_PRIORITY)
 		return -EINVAL;
 
-	*val &= AT91_AIC_PRIOR;
+	*val &= ~AT91_AIC_PRIOR;
 	*val |= priority;
 
 	return 0;
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index e23d1d1..3447549 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -875,6 +875,7 @@ static int its_alloc_tables(const char *node_name, struct its_node *its)
 		}
 
 		alloc_size = (1 << order) * PAGE_SIZE;
+retry_alloc_baser:
 		alloc_pages = (alloc_size / psz);
 		if (alloc_pages > GITS_BASER_PAGES_MAX) {
 			alloc_pages = GITS_BASER_PAGES_MAX;
@@ -938,13 +939,16 @@ retry_baser:
 			 * size and retry. If we reach 4K, then
 			 * something is horribly wrong...
 			 */
+			free_pages((unsigned long)base, order);
+			its->tables[i] = NULL;
+
 			switch (psz) {
 			case SZ_16K:
 				psz = SZ_4K;
-				goto retry_baser;
+				goto retry_alloc_baser;
 			case SZ_64K:
 				psz = SZ_16K;
-				goto retry_baser;
+				goto retry_alloc_baser;
 			}
 		}
 
diff --git a/drivers/irqchip/irq-mxs.c b/drivers/irqchip/irq-mxs.c
index c22e2d4..efe5084 100644
--- a/drivers/irqchip/irq-mxs.c
+++ b/drivers/irqchip/irq-mxs.c
@@ -241,6 +241,7 @@ static int __init asm9260_of_init(struct device_node *np,
 		writel(0, icoll_priv.intr + i);
 
 	icoll_add_domain(np, ASM9260_NUM_IRQS);
+	set_handle_irq(icoll_handle_irq);
 
 	return 0;
 }
diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c
index c71914e..5dc5a76 100644
--- a/drivers/irqchip/irq-s3c24xx.c
+++ b/drivers/irqchip/irq-s3c24xx.c
@@ -605,7 +605,7 @@ err:
 	return ERR_PTR(ret);
 }
 
-static struct s3c_irq_data init_eint[32] = {
+static struct s3c_irq_data __maybe_unused init_eint[32] = {
 	{ .type = S3C_IRQTYPE_NONE, }, /* reserved */
 	{ .type = S3C_IRQTYPE_NONE, }, /* reserved */
 	{ .type = S3C_IRQTYPE_NONE, }, /* reserved */
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 706e3ff..7ee21ae 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -679,18 +679,6 @@ u32 of_msi_map_rid(struct device *dev, struct device_node *msi_np, u32 rid_in)
 	return __of_msi_map_rid(dev, &msi_np, rid_in);
 }
 
-static struct irq_domain *__of_get_msi_domain(struct device_node *np,
-					      enum irq_domain_bus_token token)
-{
-	struct irq_domain *d;
-
-	d = irq_find_matching_host(np, token);
-	if (!d)
-		d = irq_find_host(np);
-
-	return d;
-}
-
 /**
  * of_msi_map_get_device_domain - Use msi-map to find the relevant MSI domain
  * @dev: device for which the mapping is to be done.
@@ -706,7 +694,7 @@ struct irq_domain *of_msi_map_get_device_domain(struct device *dev, u32 rid)
 	struct device_node *np = NULL;
 
 	__of_msi_map_rid(dev, &np, rid);
-	return __of_get_msi_domain(np, DOMAIN_BUS_PCI_MSI);
+	return irq_find_matching_host(np, DOMAIN_BUS_PCI_MSI);
 }
 
 /**
@@ -730,7 +718,7 @@ struct irq_domain *of_msi_get_domain(struct device *dev,
 	/* Check for a single msi-parent property */
 	msi_np = of_parse_phandle(np, "msi-parent", 0);
 	if (msi_np && !of_property_read_bool(msi_np, "#msi-cells")) {
-		d = __of_get_msi_domain(msi_np, token);
+		d = irq_find_matching_host(msi_np, token);
 		if (!d)
 			of_node_put(msi_np);
 		return d;
@@ -744,7 +732,7 @@ struct irq_domain *of_msi_get_domain(struct device *dev,
 		while (!of_parse_phandle_with_args(np, "msi-parent",
 						   "#msi-cells",
 						   index, &args)) {
-			d = __of_get_msi_domain(args.np, token);
+			d = irq_find_matching_host(args.np, token);
 			if (d)
 				return d;