[PATCH net-next 04/12] net: ethtool: fix __ethtool_dev_mm_supported() implementation

[Vladimir Oltean]

The MAC Merge layer is supported when ops->get_mm() returns 0.
The implementation was changed during review, and in this process, a bug
was introduced.

Link: https://patchwork.kernel.org/project/netdevbpf/patch/20230111161706.1465242-5-vladimir.oltean@xxxxxxx/
Fixes: 04692c9020b7 ("net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC)")
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
---
 net/ethtool/mm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ethtool/mm.c b/net/ethtool/mm.c
index e612856eed8c..fce3cc2734f9 100644
--- a/net/ethtool/mm.c
+++ b/net/ethtool/mm.c
@@ -247,5 +247,5 @@ bool __ethtool_dev_mm_supported(struct net_device *dev)
 	if (ops && ops->get_mm)
 		ret = ops->get_mm(dev, &state);
 
-	return !!ret;
+	return !ret;
 }
-- 
2.34.1