prev_hw_desc 558 drivers/dma/iop-adma.h struct iop3xx_desc_aau *hw_desc, *prev_hw_desc, *iter; prev_hw_desc 580 drivers/dma/iop-adma.h prev_hw_desc = prev_hw_desc 582 drivers/dma/iop-adma.h prev_hw_desc->next_desc =