dma_ring_incr     396 drivers/net/ethernet/calxeda/xgmac.c #define dma_ring_incr(n, s)	(((n) + 1) & ((s) - 1))
dma_ring_incr     188 drivers/net/ethernet/hisilicon/hix5hd2_gmac.c #define dma_ring_incr(n, s)		(((n) + 1) & ((s) - 1))