The EXYNOS DRM driver uses drm_vm_open_locked in its mmap() function, and it can be built as a loadable module, which currently fails. This exports the symbol from the DRM core to avoid
ERROR: "drm_vm_open_locked" [drivers/gpu/drm/exynos/exynosdrm.ko] undefined! Signed-off-by: Arnd Bergmann <arnd at arndb.de> Cc: David Airlie <airlied at linux.ie> Cc: dri-devel at lists.freedesktop.org Cc: Inki Dae <inki.dae at samsung.com> Cc: Joonyoung Shim <jy0922.shim at samsung.com> Cc: Seung-Woo Kim <sw0312.kim at samsung.com> Cc: Kyungmin Park <kyungmin.park at samsung.com> --- drivers/gpu/drm/drm_vm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index db7bd29..1d4f7c9 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -422,6 +422,7 @@ void drm_vm_open_locked(struct drm_device *dev, list_add(&vma_entry->head, &dev->vmalist); } } +EXPORT_SYMBOL_GPL(drm_vm_open_locked); static void drm_vm_open(struct vm_area_struct *vma) { -- 1.8.1.2