mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-30 21:44:27 -04:00
140 lines
4.0 KiB
Diff
140 lines
4.0 KiB
Diff
From 34a5102c3235c470a6c77fba16cb971964d9c136 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Tue, 31 Jan 2017 19:37:54 +0100
|
|
Subject: [PATCH 1/3] net: bgmac: allocate struct bgmac just once & don't copy
|
|
it
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
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@milecki.pl>
|
|
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
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(-)
|
|
|
|
--- 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_devic
|
|
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_devic
|
|
err1:
|
|
bcma_mdio_mii_unregister(bgmac->mii_bus);
|
|
err:
|
|
- kfree(bgmac);
|
|
bcma_set_drvdata(core, NULL);
|
|
|
|
return err;
|
|
--- 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_d
|
|
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;
|
|
|
|
--- a/drivers/net/ethernet/broadcom/bgmac.c
|
|
+++ b/drivers/net/ethernet/broadcom/bgmac.c
|
|
@@ -1475,22 +1475,32 @@ static int bgmac_phy_connect(struct bgma
|
|
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);
|
|
|
|
@@ -1517,7 +1527,7 @@ 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;
|
|
@@ -1553,8 +1563,7 @@ err_phy_disconnect:
|
|
phy_disconnect(net_dev->phydev);
|
|
err_dma_free:
|
|
bgmac_dma_free(bgmac);
|
|
-err_netdev_free:
|
|
- free_netdev(net_dev);
|
|
+err_out:
|
|
|
|
return err;
|
|
}
|
|
--- 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);
|