18.02.2022 14:39, Mikko Perttunen пишет: > + for (index = 0; index < cdl->len; index++) { > + struct iommu_fwspec *fwspec; > + > + ctx = &cdl->devs[index]; > + > + ctx->host = host1x; > + > + device_initialize(&ctx->dev); > + > + ctx->dev.dma_mask = &context_device_dma_mask; > + ctx->dev.coherent_dma_mask = context_device_dma_mask; > + dev_set_name(&ctx->dev, "host1x-ctx.%d", index); > + ctx->dev.bus = &host1x_context_device_bus_type; host1x_context_device_bus_type will be an undefined symbol if CONFIG_TEGRA_HOST1X_CONTEXT_BUS=n? Please compile and test all combinations.