Commit-ID: 00b992deaa08495ab958da5950c9ebbba27d0ddc
Gitweb: http://git.kernel.org/tip/00b992deaa08495ab958da5950c9ebbba27d0ddc
Author: Alexander Kuleshov <kuleshovmail@xxxxxxxxx>
AuthorDate: Tue, 19 Jul 2016 15:54:08 +0600
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Tue, 6 Sep 2016 12:14:12 +0200
genirq: No need to mask non trigger mode flags before __irq_set_trigger()
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@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20160719095408.13778-1-kuleshovmail@xxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
kernel/irq/chip.c | 1 -
kernel/irq/manage.c | 5 ++---
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 93c373a..e11e8af 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -76,7 +76,6 @@ int irq_set_irq_type(unsigned int irq, unsigned int type)
if (!desc)
return -EINVAL;
- type &= IRQ_TYPE_SENSE_MASK;
ret = __irq_set_trigger(desc, type);
irq_put_desc_busunlock(desc, flags);
return ret;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 73a2b78..4908617 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -669,8 +669,6 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
return 0;
}
- flags &= IRQ_TYPE_SENSE_MASK;
-
if (chip->flags & IRQCHIP_SET_TYPE_MASKED) {
if (!irqd_irq_masked(&desc->irq_data))
mask_irq(desc);
@@ -678,7 +676,8 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
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);
switch (ret) {
--
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