DWORD_REG_BITS_OFF  497 drivers/net/ethernet/via/via-rhine.c #define DWORD_REG_BITS_OFF(x, p)    do { iowrite32(ioread32((p)) & (~(x)), (p)); } while (0)
DWORD_REG_BITS_OFF   45 drivers/net/ethernet/via/via-velocity.h #define DWORD_REG_BITS_OFF(x,p)     do { writel(readl((p)) & (~(x)),(p));} while (0)