diff options
| -rw-r--r-- | drivers/iommu/irq_remapping.c | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 5585c4e17e39..390079ee1350 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -218,7 +218,7 @@ int __init irq_remapping_enable(void) { int ret; - if (!remap_ops || !remap_ops->enable) + if (!remap_ops->enable) return -ENODEV; ret = remap_ops->enable(); @@ -231,22 +231,16 @@ int __init irq_remapping_enable(void) void irq_remapping_disable(void) { - if (!irq_remapping_enabled || - !remap_ops || - !remap_ops->disable) - return; - - remap_ops->disable(); + if (irq_remapping_enabled && remap_ops->disable) + remap_ops->disable(); } int irq_remapping_reenable(int mode) { - if (!irq_remapping_enabled || - !remap_ops || - !remap_ops->reenable) - return 0; + if (irq_remapping_enabled && remap_ops->reenable) + return remap_ops->reenable(mode); - return remap_ops->reenable(mode); + return 0; } int __init irq_remap_enable_fault_handling(void) @@ -254,7 +248,7 @@ int __init irq_remap_enable_fault_handling(void) if (!irq_remapping_enabled) return 0; - if (!remap_ops || !remap_ops->enable_faulting) + if (!remap_ops->enable_faulting) return -ENODEV; return remap_ops->enable_faulting(); @@ -265,7 +259,7 @@ int setup_ioapic_remapped_entry(int irq, unsigned int destination, int vector, struct io_apic_irq_attr *attr) { - if (!remap_ops || !remap_ops->setup_ioapic_entry) + if (!remap_ops->setup_ioapic_entry) return -ENODEV; return remap_ops->setup_ioapic_entry(irq, entry, destination, @@ -275,8 +269,7 @@ int setup_ioapic_remapped_entry(int irq, static int set_remapped_irq_affinity(struct irq_data *data, const struct cpumask *mask, bool force) { - if (!config_enabled(CONFIG_SMP) || !remap_ops || - !remap_ops->set_affinity) + if (!config_enabled(CONFIG_SMP) || !remap_ops->set_affinity) return 0; return remap_ops->set_affinity(data, mask, force); @@ -286,10 +279,7 @@ void free_remapped_irq(int irq) { struct irq_cfg *cfg = irq_cfg(irq); - if (!remap_ops || !remap_ops->free_irq) - return; - - if (irq_remapped(cfg)) + if (irq_remapped(cfg) && remap_ops->free_irq) remap_ops->free_irq(irq); } @@ -301,13 +291,13 @@ void compose_remapped_msi_msg(struct pci_dev *pdev, if (!irq_remapped(cfg)) native_compose_msi_msg(pdev, irq, dest, msg, hpet_id); - else if (remap_ops && remap_ops->compose_msi_msg) + else if (remap_ops->compose_msi_msg) remap_ops->compose_msi_msg(pdev, irq, dest, msg, hpet_id); } static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec) { - if (!remap_ops || !remap_ops->msi_alloc_irq) + if (!remap_ops->msi_alloc_irq) return -ENODEV; return remap_ops->msi_alloc_irq(pdev, irq, nvec); @@ -316,7 +306,7 @@ static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec) static int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq, int index, int sub_handle) { - if (!remap_ops || !remap_ops->msi_setup_irq) + if (!remap_ops->msi_setup_irq) return -ENODEV; return remap_ops->msi_setup_irq(pdev, irq, index, sub_handle); @@ -326,7 +316,7 @@ int setup_hpet_msi_remapped(unsigned int irq, unsigned int id) { int ret; - if (!remap_ops || !remap_ops->alloc_hpet_msi) + if (!remap_ops->alloc_hpet_msi) return -ENODEV; ret = remap_ops->alloc_hpet_msi(irq, id); |