diff options
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 07f491c2dc64..f8f54a4b1d8f 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2030,6 +2030,12 @@ static int __attach_device(struct iommu_dev_data *dev_data, { int ret; + /* + * Must be called with IRQs disabled. Warn here to detect early + * when its not. + */ + WARN_ON(!irqs_disabled()); + /* lock domain */ spin_lock(&domain->lock); @@ -2190,6 +2196,12 @@ static void __detach_device(struct iommu_dev_data *dev_data) { struct protection_domain *domain; + /* + * Must be called with IRQs disabled. Warn here to detect early + * when its not. + */ + WARN_ON(!irqs_disabled()); + if (WARN_ON(!dev_data->domain)) return; |