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

From Robert Richter <rric@kernel.org>
Newsgroups linux.kernel
Subject [PATCH v5 6/6] irqchip, gicv3-its: Use new jump label API
Date 2015-09-21 23:00 +0200
Message-ID <qbglQ-Z6-15@gated-at.bofh.it> (permalink)
References <qbglQ-Z6-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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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Thread

[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

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