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authorLinus Torvalds <torvalds@linux-foundation.org>2014-09-14 10:37:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-09-14 10:37:10 -0700
commit8ac19f0d90f7de0e78b08770ba2eabd29ad2cb9e (patch)
tree655ae8185fda26b7cc71d062665581ced9bca05c
parent1536340e7c67694b134cbbc07168e5a524e49d08 (diff)
parent938c04a8708645ae335783ca630bbb806111802f (diff)
downloadlwn-8ac19f0d90f7de0e78b08770ba2eabd29ad2cb9e.tar.gz
lwn-8ac19f0d90f7de0e78b08770ba2eabd29ad2cb9e.zip
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull ARM irq chip fixes from Thomas Gleixner: "Another pile of ARM specific irq chip fixlets: - off by one bugs in the crossbar driver - missing annotations - a bunch of "make it compile" updates I pulled the lot today from Jason, but it has been in -next for at least a week" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: gic-v3: Declare rdist as __percpu pointer to __iomem pointer irqchip: gic: Make gic_default_routable_irq_domain_ops static irqchip: exynos-combiner: Fix compilation error on ARM64 irqchip: crossbar: Off by one bugs in init irqchip: gic-v3: Tag all low level accessors __maybe_unused irqchip: gic-v3: Only define gic_peek_irq() when building SMP
-rw-r--r--drivers/irqchip/exynos-combiner.c1
-rw-r--r--drivers/irqchip/irq-crossbar.c4
-rw-r--r--drivers/irqchip/irq-gic-v3.c38
-rw-r--r--drivers/irqchip/irq-gic.c2
4 files changed, 23 insertions, 22 deletions
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index f8636a650cf6..5945223b73fa 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
+#include <linux/interrupt.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 85c2985d8bcb..bbbaf5de65d2 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -220,7 +220,7 @@ static int __init crossbar_of_init(struct device_node *node)
of_property_read_u32_index(node,
"ti,irqs-reserved",
i, &entry);
- if (entry > max) {
+ if (entry >= max) {
pr_err("Invalid reserved entry\n");
ret = -EINVAL;
goto err_irq_map;
@@ -238,7 +238,7 @@ static int __init crossbar_of_init(struct device_node *node)
of_property_read_u32_index(node,
"ti,irqs-skip",
i, &entry);
- if (entry > max) {
+ if (entry >= max) {
pr_err("Invalid skip entry\n");
ret = -EINVAL;
goto err_irq_map;
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 57eaa5a0b1e3..a0698b4f0303 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -36,7 +36,7 @@
struct gic_chip_data {
void __iomem *dist_base;
void __iomem **redist_base;
- void __percpu __iomem **rdist;
+ void __iomem * __percpu *rdist;
struct irq_domain *domain;
u64 redist_stride;
u32 redist_regions;
@@ -104,7 +104,7 @@ static void gic_redist_wait_for_rwp(void)
}
/* Low level accessors */
-static u64 gic_read_iar(void)
+static u64 __maybe_unused gic_read_iar(void)
{
u64 irqstat;
@@ -112,24 +112,24 @@ static u64 gic_read_iar(void)
return irqstat;
}
-static void gic_write_pmr(u64 val)
+static void __maybe_unused gic_write_pmr(u64 val)
{
asm volatile("msr_s " __stringify(ICC_PMR_EL1) ", %0" : : "r" (val));
}
-static void gic_write_ctlr(u64 val)
+static void __maybe_unused gic_write_ctlr(u64 val)
{
asm volatile("msr_s " __stringify(ICC_CTLR_EL1) ", %0" : : "r" (val));
isb();
}
-static void gic_write_grpen1(u64 val)
+static void __maybe_unused gic_write_grpen1(u64 val)
{
asm volatile("msr_s " __stringify(ICC_GRPEN1_EL1) ", %0" : : "r" (val));
isb();
}
-static void gic_write_sgi1r(u64 val)
+static void __maybe_unused gic_write_sgi1r(u64 val)
{
asm volatile("msr_s " __stringify(ICC_SGI1R_EL1) ", %0" : : "r" (val));
}
@@ -200,19 +200,6 @@ static void gic_poke_irq(struct irq_data *d, u32 offset)
rwp_wait();
}
-static int gic_peek_irq(struct irq_data *d, u32 offset)
-{
- u32 mask = 1 << (gic_irq(d) % 32);
- void __iomem *base;
-
- if (gic_irq_in_rdist(d))
- base = gic_data_rdist_sgi_base();
- else
- base = gic_data.dist_base;
-
- return !!(readl_relaxed(base + offset + (gic_irq(d) / 32) * 4) & mask);
-}
-
static void gic_mask_irq(struct irq_data *d)
{
gic_poke_irq(d, GICD_ICENABLER);
@@ -401,6 +388,19 @@ static void gic_cpu_init(void)
}
#ifdef CONFIG_SMP
+static int gic_peek_irq(struct irq_data *d, u32 offset)
+{
+ u32 mask = 1 << (gic_irq(d) % 32);
+ void __iomem *base;
+
+ if (gic_irq_in_rdist(d))
+ base = gic_data_rdist_sgi_base();
+ else
+ base = gic_data.dist_base;
+
+ return !!(readl_relaxed(base + offset + (gic_irq(d) / 32) * 4) & mask);
+}
+
static int gic_secondary_init(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 4b959e606fe8..dda6dbc23565 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -867,7 +867,7 @@ static int gic_routable_irq_domain_xlate(struct irq_domain *d,
return 0;
}
-const struct irq_domain_ops gic_default_routable_irq_domain_ops = {
+static const struct irq_domain_ops gic_default_routable_irq_domain_ops = {
.map = gic_routable_irq_domain_map,
.unmap = gic_routable_irq_domain_unmap,
.xlate = gic_routable_irq_domain_xlate,