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genirq: Introduce helper function irq_data_get_affinity_mask()

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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@linux.intel.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/1433145945-789-15-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2015-06-01 16:05:23 +08:00 committed by Thomas Gleixner
parent 6783011b48
commit c64301a230
1 changed files with 12 additions and 0 deletions
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12
include/linux/irq.h
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@ -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,