RE: [PATCH 28/29] dmaengine: kill tx_list
From: Sosnowski, Maciej
Date: Mon Sep 14 2009 - 11:02:10 EST
Williams, Dan J wrote:
>
The tx_list attribute of struct dma_async_tx_descriptor is common to
>
most, but not all dma driver implementations. None of the upper level
>
code (dmaengine/async_tx) uses it, so allow drivers to implement it
>
locally if they need it. This saves sizeof(struct list_head) bytes for
>
drivers that do not manage descriptors with a linked list (e.g.: ioatdma
>
v2,3).
>
>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
>
---
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@xxxxxxxxx>--
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