linux-kernel - [PATCH] mlxsw: spectrum_switchdev: remove duplicated check on multicast

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Message-Id: <20180424115139.21134-1-colin.king@canonical.com>
Date:   Tue, 24 Apr 2018 12:51:39 +0100
From:   Colin King <colin.king@...onical.com>
To:     Jiri Pirko <jiri@...lanox.com>, Ido Schimmel <idosch@...lanox.com>,
        netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mlxsw: spectrum_switchdev: remove duplicated check on multicast_enable

From: Colin Ian King <colin.king@...onical.com>

The check on bridge_port->bridge_device->multicast_enable is performed
twice in two nested if statements. I can't see any reason for this, the
second check is redundant and can be removed.

Detected by cppcheck:
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:1722]:
(warning) Identical inner 'if' condition is always true.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index c11c9a635866..989ed19e25c9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1719,12 +1719,9 @@ __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
 	int err;
 
 	if (bridge_port->bridge_device->multicast_enabled) {
-		if (bridge_port->bridge_device->multicast_enabled) {
-			err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid,
-						     false);
-			if (err)
-				netdev_err(dev, "Unable to remove port from SMID\n");
-		}
+		err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
+		if (err)
+			netdev_err(dev, "Unable to remove port from SMID\n");
 	}
 
 	err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
-- 
2.17.0