linux-kernel - [PATCH net-next 1/4] mvpp2: refactor BM pool init percpu code

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Message-Id: <20200630180930.87506-2-mcroce@linux.microsoft.com>
Date:   Tue, 30 Jun 2020 20:09:27 +0200
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
        Sven Auhagen <sven.auhagen@...eatech.de>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Stefan Chulski <stefanc@...vell.com>,
        Marcin Wojtas <mw@...ihalf.com>, maxime.chevallier@...tlin.com,
        antoine.tenart@...tlin.com, thomas.petazzoni@...tlin.com
Subject: [PATCH net-next 1/4] mvpp2: refactor BM pool init percpu code

From: Matteo Croce <mcroce@...rosoft.com>

In mvpp2_swf_bm_pool_init_percpu(), a reference to a struct
mvpp2_bm_pool is obtained traversing multiple structs, when a
local variable already points to the same object.

Fix it and, while at it, give the variable a meaningful name.

Signed-off-by: Matteo Croce <mcroce@...rosoft.com>
---
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   | 23 +++++++++----------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 212fc3b54310..027de7291f92 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -907,28 +907,27 @@ static int mvpp2_swf_bm_pool_init_shared(struct mvpp2_port *port)
 /* Initialize pools for swf, percpu buffers variant */
 static int mvpp2_swf_bm_pool_init_percpu(struct mvpp2_port *port)
 {
-	struct mvpp2_bm_pool *p;
+	struct mvpp2_bm_pool *bm_pool;
 	int i;
 
 	for (i = 0; i < port->nrxqs; i++) {
-		p = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_SHORT, i,
-					     mvpp2_pools[MVPP2_BM_SHORT].pkt_size);
-		if (!p)
+		bm_pool = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_SHORT, i,
+						   mvpp2_pools[MVPP2_BM_SHORT].pkt_size);
+		if (!bm_pool)
 			return -ENOMEM;
 
-		port->priv->bm_pools[i].port_map |= BIT(port->id);
-		mvpp2_rxq_short_pool_set(port, i, port->priv->bm_pools[i].id);
+		bm_pool->port_map |= BIT(port->id);
+		mvpp2_rxq_short_pool_set(port, i, bm_pool->id);
 	}
 
 	for (i = 0; i < port->nrxqs; i++) {
-		p = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_LONG, i + port->nrxqs,
-					     mvpp2_pools[MVPP2_BM_LONG].pkt_size);
-		if (!p)
+		bm_pool = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_LONG, i + port->nrxqs,
+						   mvpp2_pools[MVPP2_BM_LONG].pkt_size);
+		if (!bm_pool)
 			return -ENOMEM;
 
-		port->priv->bm_pools[i + port->nrxqs].port_map |= BIT(port->id);
-		mvpp2_rxq_long_pool_set(port, i,
-					port->priv->bm_pools[i + port->nrxqs].id);
+		bm_pool->port_map |= BIT(port->id);
+		mvpp2_rxq_long_pool_set(port, i, bm_pool->id);
 	}
 
 	port->pool_long = NULL;
-- 
2.26.2