From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Vinod <vkoul@kernel.org>
Cc: dan.j.williams@intel.com, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, lars@metafoo.de,
radheys@xilinx.com
Subject: [v2,1/2] dmaengine: Add metadata_ops for dma_async_tx_descriptor
Date: Tue, 11 Sep 2018 15:33:51 +0300 [thread overview]
Message-ID: <6ba92876-899f-5bf2-e494-259e1e680750@ti.com> (raw)
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
next reply other threads:[~2018-09-11 12:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 12:33 Peter Ujfalusi [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-09-11 7:33 [v2,1/2] dmaengine: Add metadata_ops for dma_async_tx_descriptor Vinod Koul
2018-08-30 12:19 Peter Ujfalusi
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