diff options
Diffstat (limited to 'drivers/iommu/iommufd/io_pagetable.c')
| -rw-r--r-- | drivers/iommu/iommufd/io_pagetable.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/iommu/iommufd/io_pagetable.c b/drivers/iommu/iommufd/io_pagetable.c index 54cf4d856179..436992331111 100644 --- a/drivers/iommu/iommufd/io_pagetable.c +++ b/drivers/iommu/iommufd/io_pagetable.c @@ -495,7 +495,11 @@ int iopt_map_file_pages(struct iommufd_ctx *ictx, struct io_pagetable *iopt, return -EOVERFLOW; start_byte = start - ALIGN_DOWN(start, PAGE_SIZE); - dmabuf = dma_buf_get(fd); + if (IS_ENABLED(CONFIG_DMA_SHARED_BUFFER)) + dmabuf = dma_buf_get(fd); + else + dmabuf = ERR_PTR(-ENXIO); + if (!IS_ERR(dmabuf)) { pages = iopt_alloc_dmabuf_pages(ictx, dmabuf, start_byte, start, length, |