diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 47c43386786b13229f4fbeb5cbdbfe03a2009804..279e53989374f065d01039caf110a14b95f887e0 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -284,6 +284,7 @@ int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
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 715923d5236cc9a3cb721d2f91508e420d64ff47..fb50911b3940c0bd7234a1312e320ccff020f492 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 b12a5d58546f922b460d6aac34c073ff363ef1b8..37199b9b2cfa260659a98da3eb1a48053e7bddfb 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 e23d1d18f9d6a39731bdd34633e2bbc9bc473525..3447549fcc9306a37e7695d27e06589d45d3d0e4 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 @@ static int its_alloc_tables(const char *node_name, struct its_node *its)
* 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 c22e2d40cb302452624c29efd44c483e577f5333..efe50845939d91fee149acb085912697031dd9a0 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 c71914e8f596c3700d8c5a4da2448b32acf8c41f..5dc5a760c7236971a81dfcf70cd78542abadf8f4 100644
--- a/drivers/irqchip/irq-s3c24xx.c
+++ b/drivers/irqchip/irq-s3c24xx.c
@@ -605,7 +605,7 @@ static struct s3c_irq_intc * __init s3c24xx_init_intc(struct device_node *np,
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 706e3ff67f8b02f4403a841c8b92f66f3c0e5678..7ee21ae305ae10d480adce961ad59fe284ca366e 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;
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index f64622ad02c196185be2eb79269e782d5772fcd0..04579d9fbce4f3b5c0a8484116500ee3034b93f7 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -70,6 +70,7 @@ struct irq_fwspec {
*/
enum irq_domain_bus_token {
DOMAIN_BUS_ANY = 0,
+ DOMAIN_BUS_WIRED,
DOMAIN_BUS_PCI_MSI,
DOMAIN_BUS_PLATFORM_MSI,
DOMAIN_BUS_NEXUS,
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index a302cf9a2126c8a911ff4da1a944c88c6d3b3f8a..57bff7857e879bf2301a92723ade0a968870e637 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -138,7 +138,8 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc)
unsigned int flags = 0, irq = desc->irq_data.irq;
struct irqaction *action = desc->action;
- do {
+ /* action might have become NULL since we dropped the lock */
+ while (action) {
irqreturn_t res;
trace_irq_handler_entry(irq, action);
@@ -173,7 +174,7 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc)
retval |= res;
action = action->next;
- } while (action);
+ }
add_interrupt_randomness(irq, flags);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 6e655f7acd3bf79b68f62fc4fbdf6806cfd11884..3e56d2f03e24e6ee147e837727e6aac7a479f9aa 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -575,10 +575,15 @@ unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec)
unsigned int type = IRQ_TYPE_NONE;
int virq;
- if (fwspec->fwnode)
- domain = irq_find_matching_fwnode(fwspec->fwnode, DOMAIN_BUS_ANY);
- else
+ if (fwspec->fwnode) {
+ domain = irq_find_matching_fwnode(fwspec->fwnode,
+ DOMAIN_BUS_WIRED);
+ if (!domain)
+ domain = irq_find_matching_fwnode(fwspec->fwnode,
+ DOMAIN_BUS_ANY);
+ } else {
domain = irq_default_domain;
+ }
if (!domain) {
pr_warn("no irq domain found for %s !\n",