msi_prepare_lock 1181 drivers/iommu/dma-iommu.c 	static DEFINE_MUTEX(msi_prepare_lock); /* see below */
msi_prepare_lock 1193 drivers/iommu/dma-iommu.c 	mutex_lock(&msi_prepare_lock);
msi_prepare_lock 1195 drivers/iommu/dma-iommu.c 	mutex_unlock(&msi_prepare_lock);