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dmaengine: use for_each_set_bit 

Use for_each_set_bit() to implement for_each_dma_cap_mask() and
remove unused first_dma_cap() and next_dma_cap().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Akinobu Mita 2012-10-26 23:35:15 +09:00 committed by Vinod Koul
parent e63a47a361
commit e5a087fdc1
1 changed files with 1 additions and 17 deletions
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18
include/linux/dmaengine.h
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@ -849,20 +849,6 @@ static inline bool async_tx_test_ack(struct dma_async_tx_descriptor *tx)
return (tx->flags & DMA_CTRL_ACK) == DMA_CTRL_ACK;
}
#define first_dma_cap(mask) __first_dma_cap(&(mask))
static inline int __first_dma_cap(const dma_cap_mask_t *srcp)
{
return min_t(int, DMA_TX_TYPE_END,
find_first_bit(srcp->bits, DMA_TX_TYPE_END));
}
#define next_dma_cap(n, mask) __next_dma_cap((n), &(mask))
static inline int __next_dma_cap(int n, const dma_cap_mask_t *srcp)
{
return min_t(int, DMA_TX_TYPE_END,
find_next_bit(srcp->bits, DMA_TX_TYPE_END, n+1));
}
#define dma_cap_set(tx, mask) __dma_cap_set((tx), &(mask))
static inline void
__dma_cap_set(enum dma_transaction_type tx_type, dma_cap_mask_t *dstp)
@ -891,9 +877,7 @@ __dma_has_cap(enum dma_transaction_type tx_type, dma_cap_mask_t *srcp)
}
#define for_each_dma_cap_mask(cap, mask) \
for ((cap) = first_dma_cap(mask); \
(cap) < DMA_TX_TYPE_END; \
(cap) = next_dma_cap((cap), (mask)))
for_each_set_bit(cap, mask.bits, DMA_TX_TYPE_END)
/**
* dma_async_issue_pending - flush pending transactions to HW