From 9480dd7ec3fcadd4217503e4bb32c16e19e4b21f Mon Sep 17 00:00:00 2001 From: Lizhi Hou Date: Tue, 26 May 2026 11:50:58 -0700 Subject: [PATCH] accel/amdxdna: Disable device buffer exporting Device buffers are never intended to be exported. Disable exporting support explicitly. Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Lizhi Hou Link: https://patch.msgid.link/20260526185058.1780869-1-lizhi.hou@amd.com --- drivers/accel/amdxdna/amdxdna_gem.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/accel/amdxdna/amdxdna_gem.c b/drivers/accel/amdxdna/amdxdna_gem.c index 00efa8abfeea..77e5fad08ae5 100644 --- a/drivers/accel/amdxdna/amdxdna_gem.c +++ b/drivers/accel/amdxdna/amdxdna_gem.c @@ -728,9 +728,15 @@ static int amdxdna_gem_dev_obj_vmap(struct drm_gem_object *obj, struct iosys_map return 0; } +static struct dma_buf *amdxdna_gem_dev_obj_export(struct drm_gem_object *gobj, int flags) +{ + return ERR_PTR(-EOPNOTSUPP); +} + static const struct drm_gem_object_funcs amdxdna_gem_dev_obj_funcs = { .free = amdxdna_gem_dev_obj_free, .vmap = amdxdna_gem_dev_obj_vmap, + .export = amdxdna_gem_dev_obj_export, }; static const struct drm_gem_object_funcs amdxdna_gem_shmem_funcs = {