WORD_REG_BITS_ON  488 drivers/net/ethernet/via/via-rhine.c #define WORD_REG_BITS_ON(x, p)      do { iowrite16((ioread16((p))|(x)), (p)); } while (0)
WORD_REG_BITS_ON   36 drivers/net/ethernet/via/via-velocity.h #define WORD_REG_BITS_ON(x,p)       do { writew(readw((p))|(x),(p));} while (0)