Messages in this thread Patch in this message | | | Date | Sat, 13 Aug 2011 11:57:05 +0800 | Subject | [RFC patch resend] DMA engine/Langwell: process pending descriptors | From | Hillf Danton <> |
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Descriptors could be added onto the queue list, though pending descriptors are checked in intel_mid_dma_issue_pending(), they are not processed by scanning the queue list. Now it is added.
Signed-off-by: Hillf Danton <dhillf@gmail.com> ---
--- a/drivers/dma/intel_mid_dma.c Sat Aug 13 11:44:46 2011 +++ intel_mid_dma.c Sat Aug 13 11:52:35 2011 @@ -338,8 +338,12 @@ static void midc_scan_descriptors(struct if (desc->status == DMA_IN_PROGRESS) midc_descriptor_complete(midc, desc); } - return; + list_for_each_entry_safe(desc, _desc, &midc->queue, desc_node) { + if (desc->status == DMA_IN_PROGRESS) + midc_descriptor_complete(midc, desc); } +} + /** * midc_lli_fill_sg - Helper function to convert * SG list to Linked List Items.
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