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Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 irq fixes from Ingo Molnar:
 "Two changes: a cpu-hotplug/irq race fix, plus a HyperV related fix"

* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/irq: Fix fixup_irqs() error handling
  x86, irq, pic: Probe for legacy PIC and set legacy_pic appropriately
This commit is contained in:
Linus Torvalds
2014-06-12 20:03:47 -07:00
parent b2e09f633a fb24da8057
commit 71998d1be4
4 changed files with 46 additions and 24 deletions
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28
arch/x86/kernel/apic/io_apic.c
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@@ -2297,7 +2297,7 @@ int __ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
int err;
if (!config_enabled(CONFIG_SMP))
return -1;
return -EPERM;
if (!cpumask_intersects(mask, cpu_online_mask))
return -EINVAL;
@@ -2328,7 +2328,7 @@ int native_ioapic_set_affinity(struct irq_data *data,
int ret;
if (!config_enabled(CONFIG_SMP))
return -1;
return -EPERM;
raw_spin_lock_irqsave(&ioapic_lock, flags);
ret = __ioapic_set_affinity(data, mask, &dest);
@@ -3001,9 +3001,11 @@ msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
struct irq_cfg *cfg = data->chip_data;
struct msi_msg msg;
unsigned int dest;
int ret;
if (__ioapic_set_affinity(data, mask, &dest))
return -1;
ret = __ioapic_set_affinity(data, mask, &dest);
if (ret)
return ret;
__get_cached_msi_msg(data->msi_desc, &msg);
@@ -3100,9 +3102,11 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
struct irq_cfg *cfg = data->chip_data;
unsigned int dest, irq = data->irq;
struct msi_msg msg;
int ret;
if (__ioapic_set_affinity(data, mask, &dest))
return -1;
ret = __ioapic_set_affinity(data, mask, &dest);
if (ret)
return ret;
dmar_msi_read(irq, &msg);
@@ -3149,9 +3153,11 @@ static int hpet_msi_set_affinity(struct irq_data *data,
struct irq_cfg *cfg = data->chip_data;
struct msi_msg msg;
unsigned int dest;
int ret;
if (__ioapic_set_affinity(data, mask, &dest))
return -1;
ret = __ioapic_set_affinity(data, mask, &dest);
if (ret)
return ret;
hpet_msi_read(data->handler_data, &msg);
@@ -3218,9 +3224,11 @@ ht_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
{
struct irq_cfg *cfg = data->chip_data;
unsigned int dest;
int ret;
if (__ioapic_set_affinity(data, mask, &dest))
return -1;
ret = __ioapic_set_affinity(data, mask, &dest);
if (ret)
return ret;
target_ht_irq(data->irq, dest, cfg->vector);
return IRQ_SET_MASK_OK_NOCOPY;