From: Rafał Miłecki <rafal@xxxxxxxxxx>
So far were were allocating struct bgmac in 3 places: platform code,
bcma code and shared bgmac_enet_probe function. The reason for this was
bgmac_enet_probe:
1) Requiring early-filled struct bgmac
2) Calling alloc_etherdev on its own in order to use netdev_priv later
This solution got few drawbacks:
1) Was duplicating allocating code
2) Required copying early-filled struct
3) Resulted in platform/bcma code having access only to unused struct
Solve this situation by simply extracting some probe code into the new
bgmac_alloc function.
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
(cherry picked from commit 34a5102c3235c470a6c77fba16cb971964d9c136)
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bgmac-bcma.c | 4 +---
drivers/net/ethernet/broadcom/bgmac-platform.c | 2 +-
drivers/net/ethernet/broadcom/bgmac.c | 25 +++++++++++++++++--------
drivers/net/ethernet/broadcom/bgmac.h | 3 ++-
4 files changed, 21 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
index c16ec3a..5b0c7a7 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -99,12 +99,11 @@ static int bgmac_probe(struct bcma_device *core)
u8 *mac;
int err;
- bgmac = kzalloc(sizeof(*bgmac), GFP_KERNEL);
+ bgmac = bgmac_alloc(&core->dev);
if (!bgmac)
return -ENOMEM;
bgmac->bcma.core = core;
- bgmac->dev = &core->dev;
bgmac->dma_dev = core->dma_dev;
bgmac->irq = core->irq;
@@ -285,7 +284,6 @@ static int bgmac_probe(struct bcma_device *core)
err1:
bcma_mdio_mii_unregister(bgmac->mii_bus);
err:
- kfree(bgmac);
bcma_set_drvdata(core, NULL);
return err;
diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index be52f27..020f487 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -93,7 +93,7 @@ static int bgmac_probe(struct platform_device *pdev)
struct resource *regs;
const u8 *mac_addr;
- bgmac = devm_kzalloc(&pdev->dev, sizeof(*bgmac), GFP_KERNEL);
+ bgmac = bgmac_alloc(&pdev->dev);
if (!bgmac)
return -ENOMEM;
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 49f4cafe..537b00b 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1459,22 +1459,32 @@ static int bgmac_phy_connect(struct bgmac *bgmac)
return 0;
}
-int bgmac_enet_probe(struct bgmac *info)
+struct bgmac *bgmac_alloc(struct device *dev)
{
struct net_device *net_dev;
struct bgmac *bgmac;
- int err;
/* Allocation and references */
- net_dev = alloc_etherdev(sizeof(*bgmac));
+ net_dev = devm_alloc_etherdev(dev, sizeof(*bgmac));
if (!net_dev)
- return -ENOMEM;
+ return NULL;
net_dev->netdev_ops = &bgmac_netdev_ops;
net_dev->ethtool_ops = &bgmac_ethtool_ops;
+
bgmac = netdev_priv(net_dev);
- memcpy(bgmac, info, sizeof(*bgmac));
+ bgmac->dev = dev;
bgmac->net_dev = net_dev;
+
+ return bgmac;
+}
+EXPORT_SYMBOL_GPL(bgmac_alloc);
+
+int bgmac_enet_probe(struct bgmac *bgmac)
+{
+ struct net_device *net_dev = bgmac->net_dev;
+ int err;
+
net_dev->irq = bgmac->irq;
SET_NETDEV_DEV(net_dev, bgmac->dev);
@@ -1501,7 +1511,7 @@ int bgmac_enet_probe(struct bgmac *info)
err = bgmac_dma_alloc(bgmac);
if (err) {
dev_err(bgmac->dev, "Unable to alloc memory for DMA\n");
- goto err_netdev_free;
+ goto err_out;
}
bgmac->int_mask = BGMAC_IS_ERRMASK | BGMAC_IS_RX | BGMAC_IS_TX_MASK;
@@ -1537,8 +1547,7 @@ int bgmac_enet_probe(struct bgmac *info)
phy_disconnect(net_dev->phydev);
err_dma_free:
bgmac_dma_free(bgmac);
-err_netdev_free:
- free_netdev(net_dev);
+err_out:
return err;
}
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 80836b4..69d478a 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -515,7 +515,8 @@ struct bgmac {
u32 set);
};
-int bgmac_enet_probe(struct bgmac *info);
+struct bgmac *bgmac_alloc(struct device *dev);
+int bgmac_enet_probe(struct bgmac *bgmac);
void bgmac_enet_remove(struct bgmac *bgmac);
struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr);
--
2.7.4