[PATCH v2 1/2] drm/prime: Passing the right owner through to dma_buf_export()
Petri Latvala
petri.latvala at intel.com
Fri Sep 30 12:26:21 UTC 2016
The series is
Tested-by: Petri Latvala <petri.latvala at intel.com>
On 09/30/2016 02:44 PM, Chris Wilson wrote:
> dma_buf_export() adds a reference to the owning module to the dmabuf (to
> prevent the driver from being unloaded whilst a third party still refers
> to the dmabuf). However, drm_gem_prime_export() was passing its own
> THIS_MODULE (i.e. drm.ko) rather than the driver. Expand the interface
> so that driver passes the struct module to the helper.
>
> v2: Use C99 initializers to zero out unset elements of
> dma_buf_export_info
>
> Testcase: igt/vgem_reload_basic
> Reported-by: Petri Latvala <petri.latvala at intel.com>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Petri Latvala <petri.latvala at intel.com>
> Cc: stable at vger.kernel.org
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 3 ++-
> drivers/gpu/drm/arc/arcpgu_drv.c | 4 +++-
> drivers/gpu/drm/arm/hdlcd_drv.c | 4 +++-
> drivers/gpu/drm/arm/malidp_drv.c | 4 +++-
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 4 +++-
> drivers/gpu/drm/drm_prime.c | 22 +++++++++++++++-------
> drivers/gpu/drm/etnaviv/etnaviv_drv.c | 4 +++-
> drivers/gpu/drm/exynos/exynos_drm_drv.c | 4 +++-
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 4 +++-
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 4 +++-
> drivers/gpu/drm/imx/imx-drm-core.c | 4 +++-
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +++-
> drivers/gpu/drm/msm/msm_drv.c | 4 +++-
> drivers/gpu/drm/nouveau/nouveau_drm.c | 4 +++-
> drivers/gpu/drm/qxl/qxl_drv.c | 4 +++-
> drivers/gpu/drm/radeon/radeon_prime.c | 3 ++-
> drivers/gpu/drm/rcar-du/rcar_du_drv.c | 4 +++-
> drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 4 +++-
> drivers/gpu/drm/shmobile/shmob_drm_drv.c | 4 +++-
> drivers/gpu/drm/sti/sti_drv.c | 4 +++-
> drivers/gpu/drm/sun4i/sun4i_drv.c | 4 +++-
> drivers/gpu/drm/tilcdc/tilcdc_drv.c | 4 +++-
> drivers/gpu/drm/vc4/vc4_bo.c | 3 ++-
> drivers/gpu/drm/vgem/vgem_drv.c | 4 +++-
> drivers/gpu/drm/virtio/virtgpu_drv.c | 3 ++-
> include/drm/drmP.h | 14 +++++++++++++-
> 26 files changed, 96 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> index 7700dc22f243..4b56f067e141 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> @@ -121,5 +121,6 @@ struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev,
> if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
> return ERR_PTR(-EPERM);
>
> - return drm_gem_prime_export(dev, gobj, flags);
> + return drm_gem_prime_export(dev, gobj, flags,
> + THIS_MODULE, KBUILD_MODNAME);
> }
> diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
> index 28e6471257d0..1cc1370aae98 100644
> --- a/drivers/gpu/drm/arc/arcpgu_drv.c
> +++ b/drivers/gpu/drm/arc/arcpgu_drv.c
> @@ -164,6 +164,8 @@ static int arcpgu_unload(struct drm_device *drm)
> return 0;
> }
>
> +static DRM_GEM_PRIME_EXPORT(arcgpu_gem_prime_export)
> +
> static struct drm_driver arcpgu_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
> DRIVER_ATOMIC,
> @@ -183,7 +185,7 @@ static struct drm_driver arcpgu_drm_driver = {
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_free_object_unlocked = drm_gem_cma_free_object,
> .gem_vm_ops = &drm_gem_cma_vm_ops,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = arcgpu_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
> index fb6a418ce6be..d82629f619ed 100644
> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
> @@ -277,6 +277,8 @@ static const struct file_operations fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(hdlcd_gem_prime_export)
> +
> static struct drm_driver hdlcd_driver = {
> .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM |
> DRIVER_MODESET | DRIVER_PRIME |
> @@ -296,7 +298,7 @@ static struct drm_driver hdlcd_driver = {
> .dumb_destroy = drm_gem_dumb_destroy,
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = hdlcd_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
> index 9280358b8f15..36065f5aebeb 100644
> --- a/drivers/gpu/drm/arm/malidp_drv.c
> +++ b/drivers/gpu/drm/arm/malidp_drv.c
> @@ -206,6 +206,8 @@ static const struct file_operations fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(malidp_gem_prime_export)
> +
> static struct drm_driver malidp_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC |
> DRIVER_PRIME,
> @@ -220,7 +222,7 @@ static struct drm_driver malidp_driver = {
> .dumb_destroy = drm_gem_dumb_destroy,
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = malidp_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> index 5f484310bee9..3ccd3b4899c1 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> @@ -757,6 +757,8 @@ static const struct file_operations fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(atmel_gem_prime_export)
> +
> static struct drm_driver atmel_hlcdc_dc_driver = {
> .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM |
> DRIVER_MODESET | DRIVER_PRIME |
> @@ -774,7 +776,7 @@ static struct drm_driver atmel_hlcdc_dc_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = atmel_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
> index 57201d68cf61..443b6da011ff 100644
> --- a/drivers/gpu/drm/drm_prime.c
> +++ b/drivers/gpu/drm/drm_prime.c
> @@ -392,19 +392,27 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
> * @dev: drm_device to export from
> * @obj: GEM object to export
> * @flags: flags like DRM_CLOEXEC and DRM_RDWR
> + * @owner: module that owns the backing storage and dmabuf operations,
> + * pass THIS_MODULE
> + * @name: name of the owner, pass KBUILD_MODNAME
> *
> * This is the implementation of the gem_prime_export functions for GEM drivers
> * using the PRIME helpers.
> */
> struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
> - struct drm_gem_object *obj, int flags)
> + struct drm_gem_object *obj,
> + int flags,
> + struct module *owner,
> + const char *name)
> {
> - DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
> -
> - exp_info.ops = &drm_gem_prime_dmabuf_ops;
> - exp_info.size = obj->size;
> - exp_info.flags = flags;
> - exp_info.priv = obj;
> + struct dma_buf_export_info exp_info = {
> + .exp_name = name,
> + .owner = owner,
> + .ops = &drm_gem_prime_dmabuf_ops,
> + .size = obj->size,
> + .flags = flags,
> + .priv = obj,
> + };
>
> if (dev->driver->gem_prime_res_obj)
> exp_info.resv = dev->driver->gem_prime_res_obj(obj);
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index aa687669e22b..30af3c56a189 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -487,6 +487,8 @@ static const struct file_operations fops = {
> .mmap = etnaviv_gem_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(rockchip_gem_prime_export)
> +
> static struct drm_driver etnaviv_drm_driver = {
> .driver_features = DRIVER_GEM |
> DRIVER_PRIME |
> @@ -497,7 +499,7 @@ static struct drm_driver etnaviv_drm_driver = {
> .gem_vm_ops = &vm_ops,
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = etaniv_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_pin = etnaviv_gem_prime_pin,
> .gem_prime_unpin = etnaviv_gem_prime_unpin,
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index 486943e70f70..8b927ba430c0 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -393,6 +393,8 @@ static const struct file_operations exynos_drm_driver_fops = {
> .release = drm_release,
> };
>
> +static DRM_GEM_PRIME_EXPORT(exynos_gem_prime_export)
> +
> static struct drm_driver exynos_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME
> | DRIVER_ATOMIC | DRIVER_RENDER,
> @@ -412,7 +414,7 @@ static struct drm_driver exynos_drm_driver = {
> .dumb_destroy = drm_gem_dumb_destroy,
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = exynos_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = exynos_drm_gem_prime_get_sg_table,
> .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> index 0884c45aefe8..3b7c50ed4327 100644
> --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> @@ -189,6 +189,8 @@ static const struct file_operations fsl_dcu_drm_fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(fsl_gem_prime_export)
> +
> static struct drm_driver fsl_dcu_drm_driver = {
> .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET
> | DRIVER_PRIME | DRIVER_ATOMIC,
> @@ -204,7 +206,7 @@ static struct drm_driver fsl_dcu_drm_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = fsl_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> index 90377a609c98..7a38851e8fe3 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> @@ -167,6 +167,8 @@ static int kirin_gem_cma_dumb_create(struct drm_file *file,
> return drm_gem_cma_dumb_create_internal(file, dev, args);
> }
>
> +static DRM_GEM_PRIME_EXPORT(kirin_gem_prime_export)
> +
> static struct drm_driver kirin_drm_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
> DRIVER_ATOMIC,
> @@ -180,7 +182,7 @@ static struct drm_driver kirin_drm_driver = {
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = kirin_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
> index 98df09c2b388..d887a80635a8 100644
> --- a/drivers/gpu/drm/imx/imx-drm-core.c
> +++ b/drivers/gpu/drm/imx/imx-drm-core.c
> @@ -297,6 +297,8 @@ static const struct drm_ioctl_desc imx_drm_ioctls[] = {
> /* none so far */
> };
>
> +static DRM_GEM_PRIME_EXPORT(imx_gem_prime_export)
> +
> static struct drm_driver imx_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
> DRIVER_ATOMIC,
> @@ -310,7 +312,7 @@ static struct drm_driver imx_drm_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = imx_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index cf83f6507ec8..76f5888dca62 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -252,6 +252,8 @@ static const struct file_operations mtk_drm_fops = {
> #endif
> };
>
> +static DRM_GEM_PRIME_EXPORT(mtk_gem_prime_export)
> +
> static struct drm_driver mtk_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
> DRIVER_ATOMIC,
> @@ -268,7 +270,7 @@ static struct drm_driver mtk_drm_driver = {
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = mtk_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
> .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index fb5c0b0a7594..e00a449f0b3c 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -775,6 +775,8 @@ static const struct file_operations fops = {
> .mmap = msm_gem_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(msm_gem_prime_export)
> +
> static struct drm_driver msm_driver = {
> .driver_features = DRIVER_HAVE_IRQ |
> DRIVER_GEM |
> @@ -799,7 +801,7 @@ static struct drm_driver msm_driver = {
> .dumb_destroy = drm_gem_dumb_destroy,
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = msm_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_pin = msm_gem_prime_pin,
> .gem_prime_unpin = msm_gem_prime_unpin,
> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
> index 3100fd88a015..a8775d02a125 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
> @@ -941,6 +941,8 @@ nouveau_driver_fops = {
> .llseek = noop_llseek,
> };
>
> +static DRM_GEM_PRIME_EXPORT(nouveau_gem_prime_export)
> +
> static struct drm_driver
> driver_stub = {
> .driver_features =
> @@ -971,7 +973,7 @@ driver_stub = {
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = nouveau_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_pin = nouveau_gem_prime_pin,
> .gem_prime_res_obj = nouveau_gem_prime_res_obj,
> diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
> index 460bbceae297..594414e23168 100644
> --- a/drivers/gpu/drm/qxl/qxl_drv.c
> +++ b/drivers/gpu/drm/qxl/qxl_drv.c
> @@ -227,6 +227,8 @@ static struct pci_driver qxl_pci_driver = {
> .driver.pm = &qxl_pm_ops,
> };
>
> +static DRM_GEM_PRIME_EXPORT(qxl_gem_prime_export)
> +
> static struct drm_driver qxl_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
> DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
> @@ -247,7 +249,7 @@ static struct drm_driver qxl_driver = {
> #endif
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = qxl_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_pin = qxl_gem_prime_pin,
> .gem_prime_unpin = qxl_gem_prime_unpin,
> diff --git a/drivers/gpu/drm/radeon/radeon_prime.c b/drivers/gpu/drm/radeon/radeon_prime.c
> index f3609c97496b..661a033c3c70 100644
> --- a/drivers/gpu/drm/radeon/radeon_prime.c
> +++ b/drivers/gpu/drm/radeon/radeon_prime.c
> @@ -123,5 +123,6 @@ struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
> struct radeon_bo *bo = gem_to_radeon_bo(gobj);
> if (radeon_ttm_tt_has_userptr(bo->tbo.ttm))
> return ERR_PTR(-EPERM);
> - return drm_gem_prime_export(dev, gobj, flags);
> + return drm_gem_prime_export(dev, gobj, flags,
> + THIS_MODULE, KBUILD_MODNAME);
> }
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> index 73c971e39b1c..a3bd017f08ce 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> @@ -210,6 +210,8 @@ static const struct file_operations rcar_du_fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(rcar_gem_prime_export)
> +
> static struct drm_driver rcar_du_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME
> | DRIVER_ATOMIC,
> @@ -222,7 +224,7 @@ static struct drm_driver rcar_du_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = rcar_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> index 8c8cbe837e61..66c09c6930af 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> @@ -280,6 +280,8 @@ static const struct file_operations rockchip_drm_driver_fops = {
> .release = drm_release,
> };
>
> +static DRM_GEM_PRIME_EXPORT(rockchip_gem_prime_export)
> +
> static struct drm_driver rockchip_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM |
> DRIVER_PRIME | DRIVER_ATOMIC,
> @@ -295,7 +297,7 @@ static struct drm_driver rockchip_drm_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = rockchip_gem_prime_export,
> .gem_prime_get_sg_table = rockchip_gem_prime_get_sg_table,
> .gem_prime_vmap = rockchip_gem_prime_vmap,
> .gem_prime_vunmap = rockchip_gem_prime_vunmap,
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> index f0492603ea88..63aa6325ae34 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> @@ -254,6 +254,8 @@ static const struct file_operations shmob_drm_fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(shmob_gem_prime_export)
> +
> static struct drm_driver shmob_drm_driver = {
> .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET
> | DRIVER_PRIME,
> @@ -268,7 +270,7 @@ static struct drm_driver shmob_drm_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = shmob_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
> index 2784919a7366..5606532162ad 100644
> --- a/drivers/gpu/drm/sti/sti_drv.c
> +++ b/drivers/gpu/drm/sti/sti_drv.c
> @@ -281,6 +281,8 @@ static const struct file_operations sti_driver_fops = {
> .release = drm_release,
> };
>
> +static DRM_GEM_PRIME_EXPORT(sti_gem_prime_export)
> +
> static struct drm_driver sti_driver = {
> .driver_features = DRIVER_MODESET |
> DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
> @@ -297,7 +299,7 @@ static struct drm_driver sti_driver = {
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = sti_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
> index 0da9862ad8ed..2b7114d6bd64 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_drv.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
> @@ -61,6 +61,8 @@ static const struct file_operations sun4i_drv_fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(sun4i_gem_prime_export)
> +
> static struct drm_driver sun4i_drv_driver = {
> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
>
> @@ -83,7 +85,7 @@ static struct drm_driver sun4i_drv_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = sun4i_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index a694977c32f4..518f0216e4e9 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -584,6 +584,8 @@ static const struct file_operations fops = {
> .mmap = drm_gem_cma_mmap,
> };
>
> +static DRM_GEM_PRIME_EXPORT(tilcdc_gem_prime_export)
> +
> static struct drm_driver tilcdc_driver = {
> .driver_features = (DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET |
> DRIVER_PRIME | DRIVER_ATOMIC),
> @@ -603,7 +605,7 @@ static struct drm_driver tilcdc_driver = {
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = drm_gem_prime_import,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = tilcdc_gem_prime_export,
> .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
> .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
> .gem_prime_vmap = drm_gem_cma_prime_vmap,
> diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
> index 3f6704cf6608..218c26075110 100644
> --- a/drivers/gpu/drm/vc4/vc4_bo.c
> +++ b/drivers/gpu/drm/vc4/vc4_bo.c
> @@ -367,7 +367,8 @@ vc4_prime_export(struct drm_device *dev, struct drm_gem_object *obj, int flags)
> return ERR_PTR(-EINVAL);
> }
>
> - return drm_gem_prime_export(dev, obj, flags);
> + return drm_gem_prime_export(dev, obj, flags,
> + THIS_MODULE, KBUILD_MODNAME);
> }
>
> int vc4_mmap(struct file *filp, struct vm_area_struct *vma)
> diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
> index f36c14729b55..034e51c0dd70 100644
> --- a/drivers/gpu/drm/vgem/vgem_drv.c
> +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> @@ -240,6 +240,8 @@ static int vgem_prime_pin(struct drm_gem_object *obj)
> return 0;
> }
>
> +static DRM_GEM_PRIME_EXPORT(vgem_prime_export)
> +
> static struct sg_table *vgem_prime_get_sg_table(struct drm_gem_object *obj)
> {
> struct sg_table *st;
> @@ -314,7 +316,7 @@ static struct drm_driver vgem_driver = {
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .gem_prime_pin = vgem_prime_pin,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = vgem_prime_export,
> .gem_prime_get_sg_table = vgem_prime_get_sg_table,
> .gem_prime_vmap = vgem_prime_vmap,
> .gem_prime_vunmap = vgem_prime_vunmap,
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
> index c13f70cfc461..474ae8280fd2 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
> @@ -114,6 +114,7 @@ static const struct file_operations virtio_gpu_driver_fops = {
> .llseek = noop_llseek,
> };
>
> +static DRM_GEM_PRIME_EXPORT(virtgpu_gem_prime_export)
>
> static struct drm_driver driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
> @@ -132,7 +133,7 @@ static struct drm_driver driver = {
> #endif
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> - .gem_prime_export = drm_gem_prime_export,
> + .gem_prime_export = virtgpu_gem_prime_export,
> .gem_prime_import = drm_gem_prime_import,
> .gem_prime_pin = virtgpu_gem_prime_pin,
> .gem_prime_unpin = virtgpu_gem_prime_unpin,
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 0e99669159c1..9e5da8b08778 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -1012,7 +1012,10 @@ static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
> #endif
>
> extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
> - struct drm_gem_object *obj, int flags);
> + struct drm_gem_object *obj,
> + int flags,
> + struct module *owner,
> + const char *name);
> extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
> struct drm_file *file_priv, uint32_t handle, uint32_t flags,
> int *prime_fd);
> @@ -1109,4 +1112,13 @@ static __inline__ bool drm_can_sleep(void)
> /* helper for handling conditionals in various for_each macros */
> #define for_each_if(condition) if (!(condition)) {} else
>
> +#define DRM_GEM_PRIME_EXPORT(name) \
> +struct dma_buf *name(struct drm_device *dev, \
> + struct drm_gem_object *obj, \
> + int flags) \
> +{ \
> + return drm_gem_prime_export(dev, obj, flags, \
> + THIS_MODULE, KBUILD_MODNAME); \
> +}
> +
> #endif
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