linux-kernel - [tip:irq/core] genirq: Introduce helper function irq_data_get_affinity

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Message-ID: <tip-c64301a230a64dfc2fcf4581cd98a2d703f3c057@git.kernel.org>
Date:	Sat, 20 Jun 2015 10:19:54 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	konrad.wilk@...cle.com, arnd@...db.de, mingo@...nel.org,
	tglx@...utronix.de, jason@...edaemon.net, bp@...en8.de,
	jiang.liu@...ux.intel.com, rdunlap@...radead.org,
	bhelgaas@...gle.com, rmk+kernel@....linux.org.uk,
	linux-kernel@...r.kernel.org, cernekee@...il.com,
	tony.luck@...el.com, hpa@...or.com, benh@...nel.crashing.org,
	yinghai@...nel.org
Subject: [tip:irq/core] genirq:
  Introduce helper function irq_data_get_affinity_mask()

Commit-ID:  c64301a230a64dfc2fcf4581cd98a2d703f3c057
Gitweb:     http://git.kernel.org/tip/c64301a230a64dfc2fcf4581cd98a2d703f3c057
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Mon, 1 Jun 2015 16:05:23 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 12 Jun 2015 16:54:21 +0200

genirq: Introduce helper function irq_data_get_affinity_mask()

Introduce helper function irq_data_get_affinity_mask() and
irq_get_affinity_mask() to hide implementation details,
so we could move field 'affinity' from struct irq_data into
struct irq_common_data later.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Acked-by: Russell King <rmk+kernel@....linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Kevin Cernekee <cernekee@...il.com>
Cc: Arnd Bergmann <arnd@...db.de>
Link: http://lkml.kernel.org/r/1433145945-789-15-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 include/linux/irq.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index b3b82a5..1e0ccef 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -645,6 +645,18 @@ static inline int irq_data_get_node(struct irq_data *d)
 	return d->node;
 }
 
+static inline struct cpumask *irq_get_affinity_mask(int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+
+	return d ? d->affinity : NULL;
+}
+
+static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
+{
+	return d->affinity;
+}
+
 unsigned int arch_dynirq_lower_bound(unsigned int from);
 
 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
--
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