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genirq: No need to mask non trigger mode flags before __irq_set_trigger()

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Some callers of __irq_set_trigger() masks all flags except trigger mode
flags. This is unnecessary, ase __irq_set_trigger() already does this
before usage of flags.

[ tglx: Moved the flag mask and adjusted comment. Removed the hunk in
  	enable_percpu_irq() as it is required there ]

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Link: http://lkml.kernel.org/r/20160719095408.13778-1-kuleshovmail@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Alexander Kuleshov 2016-07-19 15:54:08 +06:00 committed by Thomas Gleixner
parent 545d5d657b
commit 00b992deaa
2 changed files with 2 additions and 4 deletions
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1
kernel/irq/chip.c
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@ -76,7 +76,6 @@ int irq_set_irq_type(unsigned int irq, unsigned int type)
if (!desc) if (!desc)
return -EINVAL; return -EINVAL;
type &= IRQ_TYPE_SENSE_MASK;
ret = __irq_set_trigger(desc, type); ret = __irq_set_trigger(desc, type);
irq_put_desc_busunlock(desc, flags); irq_put_desc_busunlock(desc, flags);
return ret; return ret;

5
kernel/irq/manage.c
View File

@ -669,8 +669,6 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
return 0; return 0;
} }
flags &= IRQ_TYPE_SENSE_MASK;
if (chip->flags & IRQCHIP_SET_TYPE_MASKED) { if (chip->flags & IRQCHIP_SET_TYPE_MASKED) {
if (!irqd_irq_masked(&desc->irq_data)) if (!irqd_irq_masked(&desc->irq_data))
mask_irq(desc); mask_irq(desc);
@ -678,7 +676,8 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
unmask = 1; unmask = 1;
} }
/* caller masked out all except trigger mode flags */ /* Mask all flags except trigger mode */
flags &= IRQ_TYPE_SENSE_MASK;
ret = chip->irq_set_type(&desc->irq_data, flags); ret = chip->irq_set_type(&desc->irq_data, flags);
switch (ret) { switch (ret) {