WORD_REG_BITS_SET 500 drivers/net/ethernet/via/via-rhine.c #define WORD_REG_BITS_SET(x, m, p) do { iowrite16((ioread16((p)) & (~(m)))|(x), (p)); } while (0) WORD_REG_BITS_SET 48 drivers/net/ethernet/via/via-velocity.h #define WORD_REG_BITS_SET(x,m,p) do { writew( (readw((p)) & (~(m))) |(x),(p));} while (0)