TX_DESC1_BUF_SIZE_MASK 384 drivers/net/ethernet/moxa/moxart_ether.c txdes1 = TX_DESC1_LTS | TX_DESC1_FTS | (len & TX_DESC1_BUF_SIZE_MASK); TX_DESC1_BUF_SIZE_MASK 61 drivers/net/ethernet/moxa/moxart_ether.h #define TX_BUF_SIZE_MAX (TX_DESC1_BUF_SIZE_MASK + 1)