netdev - [net-next 04/14] igc: Check unsupported flag in igc_add_mac

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Message-Id: <20200419195131.1068144-5-jeffrey.t.kirsher@intel.com>
Date:   Sun, 19 Apr 2020 12:51:21 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Andre Guedes <andre.guedes@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com,
        Aaron Brown <aaron.f.brown@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 04/14] igc: Check unsupported flag in igc_add_mac_filter()

From: Andre Guedes <andre.guedes@...el.com>

The IGC_MAC_STATE_SRC_ADDR flags is not supported by igc_add_mac_
filter() so this patch adds a check for it and returns -ENOTSUPP
in case it is set.

Signed-off-by: Andre Guedes <andre.guedes@...el.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index ade460f08ed1..66b3a689bb05 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -2200,6 +2200,8 @@ static int igc_add_mac_filter(struct igc_adapter *adapter, const u8 *addr,
 
 	if (is_zero_ether_addr(addr))
 		return -EINVAL;
+	if (flags & IGC_MAC_STATE_SRC_ADDR)
+		return -ENOTSUPP;
 
 	/* Search for the first empty entry in the MAC table.
 	 * Do not touch entries at the end of the table reserved for the VF MAC
-- 
2.25.2