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[PATCH v5 6/6] irqchip, gicv3-its: Use new jump label API

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  [PATCH v5 6/6] irqchip, gicv3-its: Use new jump label API Robert Richter <rric@kernel.org> - 2015-09-21 23:00 +0200
    Re: [PATCH v5 6/6] irqchip, gicv3-its: Use new jump label API Marc Zyngier <marc.zyngier@arm.com> - 2015-09-22 19:00 +0200
    [tip:irq/core] irqchip/gicv3-its: Use new jump label API tip-bot for Robert Richter <tipbot@zytor.com> - 2015-09-29 10:20 +0200

#1229729 — [PATCH v5 6/6] irqchip, gicv3-its: Use new jump label API

From: Robert Richter <rrichter@cavium.com>

Use newly introduced jump label API.

Make this a separate patch for easier backporting to older kernels of
the errata patch set.

Signed-off-by: Robert Richter <rrichter@cavium.com>
---
 drivers/irqchip/irq-gic-v3.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 5899e471df4c..8954763ef08a 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -144,11 +144,11 @@ static u64 gic_read_iar_cavium_thunderx(void)
 	return irqstat;
 }
 
-static struct static_key is_cavium_thunderx = STATIC_KEY_INIT_FALSE;
+static DEFINE_STATIC_KEY_FALSE(is_cavium_thunderx);
 
 static u64 __maybe_unused gic_read_iar(void)
 {
-	if (static_key_false(&is_cavium_thunderx))
+	if (static_branch_unlikely(&is_cavium_thunderx))
 		return gic_read_iar_cavium_thunderx();
 	else
 		return gic_read_iar_common();
@@ -874,7 +874,7 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
 static void gicv3_enable_quirks(void)
 {
 	if (cpus_have_cap(ARM64_WORKAROUND_CAVIUM_23154))
-		static_key_slow_inc(&is_cavium_thunderx);
+		static_branch_enable(&is_cavium_thunderx);
 }
 
 static int __init gic_of_init(struct device_node *node, struct device_node *parent)
-- 
2.1.1

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#1230492

On Mon, 21 Sep 2015 22:58:39 +0200
Robert Richter <rric@kernel.org> wrote:

> From: Robert Richter <rrichter@cavium.com>
> 
> Use newly introduced jump label API.
> 
> Make this a separate patch for easier backporting to older kernels of
> the errata patch set.
> 
> Signed-off-by: Robert Richter <rrichter@cavium.com>

Acked-by: Marc Zyngier <marc.zyngier@arm.com>

	M.
-- 
Jazz is not dead. It just smells funny.
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#1234800 — [tip:irq/core] irqchip/gicv3-its: Use new jump label API

Commit-ID:  8ac2a1704a9f315d490ca1050b8fe8367644e675
Gitweb:     http://git.kernel.org/tip/8ac2a1704a9f315d490ca1050b8fe8367644e675
Author:     Robert Richter <rrichter@cavium.com>
AuthorDate: Mon, 21 Sep 2015 22:58:39 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 29 Sep 2015 10:10:54 +0200

irqchip/gicv3-its: Use new jump label API

Use newly introduced jump label API.

Make this a separate patch for easier backporting to older kernels of
the errata patch set.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Marc Zygnier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Tirumalesh Chalamarla <tchalamarla@cavium.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1442869119-1814-7-git-send-email-rric@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/irqchip/irq-gic-v3.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index eecec71..149e3c6 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -139,11 +139,11 @@ static u64 gic_read_iar_cavium_thunderx(void)
 	return irqstat;
 }
 
-static struct static_key is_cavium_thunderx = STATIC_KEY_INIT_FALSE;
+static DEFINE_STATIC_KEY_FALSE(is_cavium_thunderx);
 
 static u64 __maybe_unused gic_read_iar(void)
 {
-	if (static_key_false(&is_cavium_thunderx))
+	if (static_branch_unlikely(&is_cavium_thunderx))
 		return gic_read_iar_cavium_thunderx();
 	else
 		return gic_read_iar_common();
@@ -871,7 +871,7 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
 static void gicv3_enable_quirks(void)
 {
 	if (cpus_have_cap(ARM64_WORKAROUND_CAVIUM_23154))
-		static_key_slow_inc(&is_cavium_thunderx);
+		static_branch_enable(&is_cavium_thunderx);
 }
 
 static int __init gic_of_init(struct device_node *node, struct device_node *parent)
--
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