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Diffstat (limited to 'drivers/s390/net/ctcm_main.c')
-rw-r--r--drivers/s390/net/ctcm_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 878fe3ce53ad..b93c2eb45916 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -996,7 +996,7 @@ static int ctcm_change_mtu(struct net_device *dev, int new_mtu)
return -EINVAL;
dev->hard_header_len = LL_HEADER_LENGTH + 2;
}
- dev->mtu = new_mtu;
+ WRITE_ONCE(dev->mtu, new_mtu);
return 0;
}