netdev - [PATCH net 7/8] igc: use EOPNOTSUPP instead of ENOTSUPP in igc_ethtool_get_sset

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Message-ID: <20251028202515.675129-8-anthony.l.nguyen@intel.com>
Date: Tue, 28 Oct 2025 13:25:12 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	andrew+netdev@...n.ch,
	netdev@...r.kernel.org
Cc: Kohei Enju <enjuk@...zon.com>,
	anthony.l.nguyen@...el.com,
	kohei.enju@...il.com,
	richardcochran@...il.com,
	vitaly.lifshits@...el.com,
	dima.ruinskiy@...el.com,
	jgarzik@...hat.com,
	Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Subject: [PATCH net 7/8] igc: use EOPNOTSUPP instead of ENOTSUPP in igc_ethtool_get_sset_count()

From: Kohei Enju <enjuk@...zon.com>

igc_ethtool_get_sset_count() returns -ENOTSUPP when a given stringset is
not supported, causing userland programs to get "Unknown error 524".

Since EOPNOTSUPP should be used when error is propagated to userland,
return -EOPNOTSUPP instead of -ENOTSUPP.

Fixes: 36b9fea60961 ("igc: Add support for statistics")
Signed-off-by: Kohei Enju <enjuk@...zon.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/igc/igc_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index ca93629b1d3a..bb783042d1af 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -810,7 +810,7 @@ static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 	case ETH_SS_PRIV_FLAGS:
 		return IGC_PRIV_FLAGS_STR_LEN;
 	default:
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 }
 
-- 
2.47.1