| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 12 Dec 2017 07:41:02 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Realtek linux nic maintainers <nic_swsd@...ltek.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
David Miller <davem@...emloft.net>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: [PATCH v2 2/3] r8169: switch to device-managed functions in probe
Simplify probe error path and remove callback by using device-managed
functions.
rtl_disable_msi isn't needed any longer because the release callback
of pcim_enable_device does this implicitely.
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
v2:
- no changes
---
drivers/net/ethernet/realtek/r8169.c | 80 +++++++++---------------------------
1 file changed, 20 insertions(+), 60 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index fc0d5fa65..3c7d90d3a 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -4643,16 +4643,6 @@ static void rtl8169_phy_timer(struct timer_list *t)
rtl_schedule_task(tp, RTL_FLAG_TASK_PHY_PENDING);
}
-static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
- void __iomem *ioaddr)
-{
- iounmap(ioaddr);
- pci_release_regions(pdev);
- pci_clear_mwi(pdev);
- pci_disable_device(pdev);
- free_netdev(dev);
-}
-
DECLARE_RTL_COND(rtl_phy_reset_cond)
{
return tp->phy_reset_pending(tp);
@@ -4784,14 +4774,6 @@ static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data
return -EOPNOTSUPP;
}
-static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
-{
- if (tp->features & RTL_FEATURE_MSI) {
- pci_disable_msi(pdev);
- tp->features &= ~RTL_FEATURE_MSI;
- }
-}
-
static void rtl_init_mdio_ops(struct rtl8169_private *tp)
{
struct mdio_ops *ops = &tp->mdio_ops;
@@ -8256,9 +8238,6 @@ static void rtl_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
- dma_free_coherent(&tp->pci_dev->dev, sizeof(*tp->counters),
- tp->counters, tp->counters_phys_addr);
-
rtl_release_firmware(tp);
if (pci_dev_run_wake(pdev))
@@ -8266,9 +8245,6 @@ static void rtl_remove_one(struct pci_dev *pdev)
/* restore original MAC address */
rtl_rar_set(tp, dev->perm_addr);
-
- rtl_disable_msi(pdev, tp);
- rtl8169_release_board(pdev, dev, tp->mmio_addr);
}
static const struct net_device_ops rtl_netdev_ops = {
@@ -8445,11 +8421,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
MODULENAME, RTL8169_VERSION);
}
- dev = alloc_etherdev(sizeof (*tp));
- if (!dev) {
- rc = -ENOMEM;
- goto out;
- }
+ dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
+ if (!dev)
+ return -ENOMEM;
SET_NETDEV_DEV(dev, &pdev->dev);
dev->netdev_ops = &rtl_netdev_ops;
@@ -8472,13 +8446,13 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
PCIE_LINK_STATE_CLKPM);
/* enable device (incl. PCI PM wakeup and hotplug setup) */
- rc = pci_enable_device(pdev);
+ rc = pcim_enable_device(pdev);
if (rc < 0) {
netif_err(tp, probe, dev, "enable failure\n");
- goto err_out_free_dev_1;
+ return rc;
}
- if (pci_set_mwi(pdev) < 0)
+ if (pcim_set_mwi(pdev) < 0)
netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
/* make sure PCI base addr 1 is MMIO */
@@ -8486,30 +8460,28 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
netif_err(tp, probe, dev,
"region #%d not an MMIO resource, aborting\n",
region);
- rc = -ENODEV;
- goto err_out_mwi_2;
+ return -ENODEV;
}
/* check for weird/broken PCI region reporting */
if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
netif_err(tp, probe, dev,
"Invalid PCI region size(s), aborting\n");
- rc = -ENODEV;
- goto err_out_mwi_2;
+ return -ENODEV;
}
rc = pci_request_regions(pdev, MODULENAME);
if (rc < 0) {
netif_err(tp, probe, dev, "could not request regions\n");
- goto err_out_mwi_2;
+ return rc;
}
/* ioremap MMIO region */
- ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
+ ioaddr = devm_ioremap(&pdev->dev, pci_resource_start(pdev, region),
+ R8169_REGS_SIZE);
if (!ioaddr) {
netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
- rc = -EIO;
- goto err_out_free_res_3;
+ return -EIO;
}
tp->mmio_addr = ioaddr;
@@ -8535,7 +8507,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc < 0) {
netif_err(tp, probe, dev, "DMA configuration failed\n");
- goto err_out_unmap_4;
+ return rc;
}
}
@@ -8697,8 +8669,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tp->rtl_fw = RTL_FIRMWARE_UNKNOWN;
- tp->counters = dma_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
- &tp->counters_phys_addr, GFP_KERNEL);
+ tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
+ &tp->counters_phys_addr,
+ GFP_KERNEL);
if (!tp->counters) {
rc = -ENOMEM;
goto err_out_msi_5;
@@ -8706,7 +8679,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = register_netdev(dev);
if (rc < 0)
- goto err_out_cnt_6;
+ goto err_out_msi_5;
pci_set_drvdata(pdev, dev);
@@ -8735,25 +8708,12 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
netif_carrier_off(dev);
-out:
- return rc;
+ return 0;
-err_out_cnt_6:
- dma_free_coherent(&pdev->dev, sizeof(*tp->counters), tp->counters,
- tp->counters_phys_addr);
err_out_msi_5:
netif_napi_del(&tp->napi);
- rtl_disable_msi(pdev, tp);
-err_out_unmap_4:
- iounmap(ioaddr);
-err_out_free_res_3:
- pci_release_regions(pdev);
-err_out_mwi_2:
- pci_clear_mwi(pdev);
- pci_disable_device(pdev);
-err_out_free_dev_1:
- free_netdev(dev);
- goto out;
+
+ return rc;
}
static struct pci_driver rtl8169_pci_driver = {
--
2.15.1
Powered by blists - more mailing lists