BD_START_ADDR_DECODE 973 drivers/mailbox/bcm-flexrm-mailbox.c bd_read_offset += (u32)(BD_START_ADDR_DECODE(val) - BD_START_ADDR_DECODE 1024 drivers/mailbox/bcm-flexrm-mailbox.c read_offset += (u32)(BD_START_ADDR_DECODE(val) - ring->bd_dma_base);