From a0c02161ecfc2f40a0837926efac5376bc6fd6d3 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Fri, 27 Jan 2017 15:29:36 -0500 Subject: net: dsa: variable number of ports Change the ports[DSA_MAX_PORTS] array of the dsa_switch structure for a zero-length array, allocated at the same time as the dsa_switch structure itself. A dsa_switch_alloc() helper is provided for that. This commit brings no functional change yet since we pass DSA_MAX_PORTS as the number of ports for the moment. Future patches can update the DSA drivers separately to support dynamic number of ports. Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- drivers/net/dsa/b53/b53_common.c | 7 ++++--- drivers/net/dsa/mv88e6xxx/chip.c | 3 +-- drivers/net/dsa/qca8k.c | 3 +-- 3 files changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers/net/dsa') diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index bb210b12ad1b..31afc4d4b68b 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1790,14 +1790,15 @@ struct b53_device *b53_switch_alloc(struct device *base, struct dsa_switch *ds; struct b53_device *dev; - ds = devm_kzalloc(base, sizeof(*ds) + sizeof(*dev), GFP_KERNEL); + ds = dsa_switch_alloc(base, DSA_MAX_PORTS); if (!ds) return NULL; - dev = (struct b53_device *)(ds + 1); + dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL); + if (!dev) + return NULL; ds->priv = dev; - ds->dev = base; dev->dev = base; dev->ds = ds; diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 921e53351786..cb7b24748336 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -4361,11 +4361,10 @@ static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip) struct device *dev = chip->dev; struct dsa_switch *ds; - ds = devm_kzalloc(dev, sizeof(*ds), GFP_KERNEL); + ds = dsa_switch_alloc(dev, DSA_MAX_PORTS); if (!ds) return -ENOMEM; - ds->dev = dev; ds->priv = chip; ds->ops = &mv88e6xxx_switch_ops; diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index c084aa484d2b..f67c6a3cebff 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -954,12 +954,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev) if (id != QCA8K_ID_QCA8337) return -ENODEV; - priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL); + priv->ds = dsa_switch_alloc(&mdiodev->dev, DSA_MAX_PORTS); if (!priv->ds) return -ENOMEM; priv->ds->priv = priv; - priv->ds->dev = &mdiodev->dev; priv->ds->ops = &qca8k_switch_ops; mutex_init(&priv->reg_mutex); dev_set_drvdata(&mdiodev->dev, priv); -- cgit v1.2.3