Author: Julia Lawall <julia@diku.dk> The constant DMA_RX_MODE is defined to be 0x14 in the local include file cs89x0.h. Since a constant with the same name is used elsewhere with set_dma_mode, it seems likely that this constant could be used here. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1; …