185 	struct dma_buf_attachment *attach;  in dma_buf_dynamic_attach()  local
188 	attach = kmem_zalloc(sizeof(*attach), KM_SLEEP);  in dma_buf_dynamic_attach()
189 	attach->dmabuf = dmabuf;  in dma_buf_dynamic_attach()
190 	attach->dev = dmat;  in dma_buf_dynamic_attach()
191 	attach->dynamic_mapping = dynamic_mapping;  in dma_buf_dynamic_attach()
194 	if (dmabuf->ops->attach)  in dma_buf_dynamic_attach()
195 		ret = dmabuf->ops->attach(dmabuf, attach);  in dma_buf_dynamic_attach()
200 	if (attach->dynamic_mapping != dmabuf->ops->dynamic_mapping)  in dma_buf_dynamic_attach()
203 	return attach;  in dma_buf_dynamic_attach()
205 fail0:	kmem_free(attach, sizeof(*attach));  in dma_buf_dynamic_attach()
217 dma_buf_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach)  in dma_buf_detach()  argument
222 		dmabuf->ops->detach(dmabuf, attach);  in dma_buf_detach()
225 	kmem_free(attach, sizeof(*attach));  in dma_buf_detach()
229 dma_buf_map_attachment(struct dma_buf_attachment *attach,  in dma_buf_map_attachment()  argument
234 	if (attach->dmabuf->ops->dynamic_mapping)  in dma_buf_map_attachment()
235 		dma_resv_lock(attach->dmabuf->resv, NULL);  in dma_buf_map_attachment()
236 	sg = attach->dmabuf->ops->map_dma_buf(attach, dir);  in dma_buf_map_attachment()
237 	if (attach->dmabuf->ops->dynamic_mapping)  in dma_buf_map_attachment()
238 		dma_resv_unlock(attach->dmabuf->resv);  in dma_buf_map_attachment()
244 dma_buf_unmap_attachment(struct dma_buf_attachment *attach,  in dma_buf_unmap_attachment()  argument
248 	if (attach->dmabuf->ops->dynamic_mapping)  in dma_buf_unmap_attachment()
249 		dma_resv_lock(attach->dmabuf->resv, NULL);  in dma_buf_unmap_attachment()
250 	attach->dmabuf->ops->unmap_dma_buf(attach, sg, dir);  in dma_buf_unmap_attachment()
251 	if (attach->dmabuf->ops->dynamic_mapping)  in dma_buf_unmap_attachment()
252 		dma_resv_unlock(attach->dmabuf->resv);  in dma_buf_unmap_attachment()