netdev - [PATCH v2 net-next 08/14] net: mscc: ocelot: use "lag" variable name in ocelot_bridge_stp_state

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Date:   Sat, 16 Jan 2021 02:59:37 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev <netdev@...r.kernel.org>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Maxim Kochetkov <fido_max@...ox.ru>
Subject: [PATCH v2 net-next 08/14] net: mscc: ocelot: use "lag" variable name in ocelot_bridge_stp_state_set

From: Vladimir Oltean <vladimir.oltean@....com>

In anticipation of further simplification, make it more clear what we're
iterating over.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
Changes in v2:
None.

 drivers/net/ethernet/mscc/ocelot.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index ce52bf892f9b..915cf81f602a 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -897,7 +897,7 @@ static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond)
 void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
 {
 	u32 port_cfg;
-	int p, i;
+	int p;
 
 	if (!(BIT(port) & ocelot->bridge_mask))
 		return;
@@ -921,14 +921,17 @@ void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
 	ocelot_write_gix(ocelot, port_cfg, ANA_PORT_PORT_CFG, port);
 
 	/* Apply FWD mask. The loop is needed to add/remove the current port as
-	 * a source for the other ports.
+	 * a source for the other ports. If the source port is in a bond, then
+	 * all the other ports from that bond need to be removed from this
+	 * source port's forwarding mask.
 	 */
 	for (p = 0; p < ocelot->num_phys_ports; p++) {
 		if (ocelot->bridge_fwd_mask & BIT(p)) {
 			unsigned long mask = ocelot->bridge_fwd_mask & ~BIT(p);
+			int lag;
 
-			for (i = 0; i < ocelot->num_phys_ports; i++) {
-				unsigned long bond_mask = ocelot->lags[i];
+			for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
+				unsigned long bond_mask = ocelot->lags[lag];
 
 				if (!bond_mask)
 					continue;
-- 
2.25.1