struct mpc52xx_fec __iomem *fec = priv->fec;
out_be32(&fec->mib_control, FEC_MIB_DISABLE);
- memset_io(&fec->rmon_t_drop, 0, (__force u32)&fec->reserved10 -
- (__force u32)&fec->rmon_t_drop);
+ memset_io(&fec->rmon_t_drop, 0,
+ offsetof(struct mpc52xx_fec, reserved10) -
+ offsetof(struct mpc52xx_fec, rmon_t_drop));
out_be32(&fec->mib_control, 0);
memset(&dev->stats, 0, sizeof(dev->stats));