Vinod, On 2018-09-11 10:33, Vinod wrote: >> +int dmaengine_desc_attach_metadata(struct dma_async_tx_descriptor *desc, >> + void *data, size_t len) >> +{ >> + int ret; >> + >> + if (!desc) >> + return -EINVAL; >> + >> + ret = desc_check_and_set_metadata_mode(desc, DESC_METADATA_CLIENT); >> + if (ret) >> + return ret; >> + >> + if (!desc->metadata_ops || !desc->metadata_ops->attach) >> + return -ENOTSUPP; >> + >> + return desc->metadata_ops->attach(desc, data, len); >> +} >> +EXPORT_SYMBOL(dmaengine_desc_attach_metadata); > > EXPORT_SYMBOL_GPL ? Sure, I think I have looked at dma_async_tx_descriptor_init/dmaengine_get_unmap_data/dma_issue_pending_all/etc they have EXPORT_SYMBOL() - Péter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki