prevtxd          1311 drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c 	di->txp[prevtxd(di, txout)] = p;
prevtxd          1504 drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c 				end = prevtxd(di, active_desc);