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dmaengine: at_hdmac: remove unsuded atc_cleanup_descriptors()

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Since patch 7c407d3e54dcc0c79119553c8d5ef176c1d5bc3a (DMA: AT91:
Get residual bytes in dma buffer), the function
atc_cleanup_descriptors() is not used anymore. We remove it to prevent
warnings.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Nicolas Ferre 2013-06-07 17:10:53 +02:00 committed by Vinod Koul
parent 62971b2982
commit 538eea6c7c
1 changed files with 0 additions and 31 deletions
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31
drivers/dma/at_hdmac.c
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@ -416,37 +416,6 @@ static void atc_complete_all(struct at_dma_chan *atchan)
atc_chain_complete(atchan, desc);
}
/**
* atc_cleanup_descriptors - cleanup up finished descriptors in active_list
* @atchan: channel to be cleaned up
*
* Called with atchan->lock held and bh disabled
*/
static void atc_cleanup_descriptors(struct at_dma_chan *atchan)
{
struct at_desc *desc, *_desc;
struct at_desc *child;
dev_vdbg(chan2dev(&atchan->chan_common), "cleanup descriptors\n");
list_for_each_entry_safe(desc, _desc, &atchan->active_list, desc_node) {
if (!(desc->lli.ctrla & ATC_DONE))
/* This one is currently in progress */
return;
list_for_each_entry(child, &desc->tx_list, desc_node)
if (!(child->lli.ctrla & ATC_DONE))
/* Currently in progress */
return;
/*
* No descriptors so far seem to be in progress, i.e.
* this chain must be done.
*/
atc_chain_complete(atchan, desc);
}
}
/**
* atc_advance_work - at the end of a transaction, move forward
* @atchan: channel where the transaction ended