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Commit e5a087fd authored by Akinobu Mita's avatar Akinobu Mita Committed by Vinod Koul
Browse files

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: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@linux.intel.com>
parent e63a47a3

include/linux/dmaengine.h

+1 −17
Original line number Diff line number Diff line
@@ -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