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-rw-r--r--net/core/ethtool.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 27e61b886520..1600aa24d36b 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1625,6 +1625,7 @@ static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
{
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
+ case ETHTOOL_TX_COPYBREAK:
if (tuna->len != sizeof(u32) ||
tuna->type_id != ETHTOOL_TUNABLE_U32)
return -EINVAL;