diff options
Diffstat (limited to 'drivers/pci/intel-iommu.c')
| -rw-r--r-- | drivers/pci/intel-iommu.c | 38 |
1 files changed, 9 insertions, 29 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 4789f8e8bf7..a4115f1afe1 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -36,7 +36,7 @@ #include <linux/iova.h> #include <linux/iommu.h> #include <linux/intel-iommu.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/tboot.h> #include <linux/dmi.h> #include <asm/cacheflush.h> @@ -3135,7 +3135,7 @@ static void iommu_flush_all(void) } } -static int iommu_suspend(struct sys_device *dev, pm_message_t state) +static int iommu_suspend(void) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu = NULL; @@ -3175,7 +3175,7 @@ nomem: return -ENOMEM; } -static int iommu_resume(struct sys_device *dev) +static void iommu_resume(void) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu = NULL; @@ -3183,7 +3183,7 @@ static int iommu_resume(struct sys_device *dev) if (init_iommu_hw()) { WARN(1, "IOMMU setup failed, DMAR can not resume!\n"); - return -EIO; + return; } for_each_active_iommu(iommu, drhd) { @@ -3204,40 +3204,20 @@ static int iommu_resume(struct sys_device *dev) for_each_active_iommu(iommu, drhd) kfree(iommu->iommu_state); - - return 0; } -static struct sysdev_class iommu_sysclass = { - .name = "iommu", +static struct syscore_ops iommu_syscore_ops = { .resume = iommu_resume, .suspend = iommu_suspend, }; -static struct sys_device device_iommu = { - .cls = &iommu_sysclass, -}; - -static int __init init_iommu_sysfs(void) +static void __init init_iommu_pm_ops(void) { - int error; - - error = sysdev_class_register(&iommu_sysclass); - if (error) - return error; - - error = sysdev_register(&device_iommu); - if (error) - sysdev_class_unregister(&iommu_sysclass); - - return error; + register_syscore_ops(&iommu_syscore_ops); } #else -static int __init init_iommu_sysfs(void) -{ - return 0; -} +static inline int init_iommu_pm_ops(void) { } #endif /* CONFIG_PM */ /* @@ -3320,7 +3300,7 @@ int __init intel_iommu_init(void) #endif dma_ops = &intel_dma_ops; - init_iommu_sysfs(); + init_iommu_pm_ops(); register_iommu(&intel_iommu_ops); |