[PATCH v2] drm: import DMA_BUF module namespace

Marcel Ziswiler
2021-10-27T21:26:42Z

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Today's -next fails building arm64 defconfig as follows:

ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vunmap from
namespace DMA_BUF, but does not import it.
ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vmap from
namespace DMA_BUF, but does not import it.

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Fixes: commit 4b2b5e142ff4 ("drm: Move GEM memory managers into modules")
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

Changes in v2:
- After consulting the documentation move it to the bottom of the file
where the other MODULE statements are as suggested by Thomas.
- Also move it down there for the drm_gem_shmem_helper.c file.

drivers/gpu/drm/drm_gem_cma_helper.c | 1 +
drivers/gpu/drm/drm_gem_shmem_helper.c | 3 +--
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 6f7b3f8ec04d3..2a34241fee025 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -581,4 +581,5 @@ drm_gem_cma_prime_import_sg_table_vmap(struct drm_device *dev,
EXPORT_SYMBOL(drm_gem_cma_prime_import_sg_table_vmap);

MODULE_DESCRIPTION("DRM CMA memory-management helpers");
+MODULE_IMPORT_NS(DMA_BUF);
MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index f7324582afe71..a5b743a83ce99 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -22,8 +22,6 @@
#include <drm/drm_prime.h>
#include <drm/drm_print.h>

-MODULE_IMPORT_NS(DMA_BUF);
-
/**
* DOC: overview
*
@@ -779,4 +777,5 @@ drm_gem_shmem_prime_import_sg_table(struct drm_device *dev,
EXPORT_SYMBOL_GPL(drm_gem_shmem_prime_import_sg_table);

MODULE_DESCRIPTION("DRM SHMEM memory-management helpers");
+MODULE_IMPORT_NS(DMA_BUF);
MODULE_LICENSE("GPL v2");
--
2.26.2