fec_mpc52xx: write in C...
If you need to find a difference between addresses of two
struct members, subtract offsetof() or cast addresses to
char * and subtract those if you prefer it that way. Doing
that same with s/char */u32/, OTOH...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index 79f7ead..f91ee70 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -568,8 +568,9 @@
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));