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authorJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
commit2b703bbda2713fd2a7d98029ea6c44f9c3159f34 (patch)
tree00aabbb35186a4541ccccf89dead04e251d0541d /kernel/irq/manage.c
parentdrm/i915: HDCP: fix Ri prime check done during link check (diff)
parentLinux 5.7-rc1 (diff)
downloadwireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.tar.xz
wireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.zip
Merge drm/drm-next into drm-intel-next-queued
Backmerging in order to pull "topic/phy-compliance". Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'kernel/irq/manage.c')
-rw-r--r--kernel/irq/manage.c29
1 files changed, 11 insertions, 18 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 3089a60ea8f9..fe40c658f86f 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -323,7 +323,11 @@ int irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask,
if (desc->affinity_notify) {
kref_get(&desc->affinity_notify->kref);
- schedule_work(&desc->affinity_notify->work);
+ if (!schedule_work(&desc->affinity_notify->work)) {
+ /* Work was already scheduled, drop our extra ref */
+ kref_put(&desc->affinity_notify->kref,
+ desc->affinity_notify->release);
+ }
}
irqd_set(data, IRQD_AFFINITY_SET);
@@ -423,7 +427,10 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
raw_spin_unlock_irqrestore(&desc->lock, flags);
if (old_notify) {
- cancel_work_sync(&old_notify->work);
+ if (cancel_work_sync(&old_notify->work)) {
+ /* Pending work had a ref, put that one too */
+ kref_put(&old_notify->kref, old_notify->release);
+ }
kref_put(&old_notify->kref, old_notify->release);
}
@@ -481,23 +488,9 @@ int irq_setup_affinity(struct irq_desc *desc)
{
return irq_select_affinity(irq_desc_get_irq(desc));
}
-#endif
+#endif /* CONFIG_AUTO_IRQ_AFFINITY */
+#endif /* CONFIG_SMP */
-/*
- * Called when a bogus affinity is set via /proc/irq
- */
-int irq_select_affinity_usr(unsigned int irq)
-{
- struct irq_desc *desc = irq_to_desc(irq);
- unsigned long flags;
- int ret;
-
- raw_spin_lock_irqsave(&desc->lock, flags);
- ret = irq_setup_affinity(desc);
- raw_spin_unlock_irqrestore(&desc->lock, flags);
- return ret;
-}
-#endif
/**
* irq_set_vcpu_affinity - Set vcpu affinity for the interrupt