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Peel off ID management code

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This commit is contained in:
Alex Forencich 2021-12-23 23:48:57 -08:00
parent 8548e8570f
commit 0b7cbe5b05
1 changed files with 20 additions and 13 deletions
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33
modules/mqnic/mqnic_main.c
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@ -92,6 +92,23 @@ static unsigned int mqnic_get_free_id(void)
return id;
}
static void mqnic_assign_id(struct mqnic_dev *mqnic)
{
spin_lock(&mqnic_devices_lock);
mqnic->id = mqnic_get_free_id();
list_add_tail(&mqnic->dev_list_node, &mqnic_devices);
spin_unlock(&mqnic_devices_lock);
snprintf(mqnic->name, sizeof(mqnic->name), DRIVER_NAME "%d", mqnic->id);
}
static void mqnic_free_id(struct mqnic_dev *mqnic)
{
spin_lock(&mqnic_devices_lock);
list_del(&mqnic->dev_list_node);
spin_unlock(&mqnic_devices_lock);
}
static int mqnic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int ret = 0;
@ -150,12 +167,7 @@ static int mqnic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent
pci_set_drvdata(pdev, mqnic);
// assign ID and add to list
spin_lock(&mqnic_devices_lock);
mqnic->id = mqnic_get_free_id();
list_add_tail(&mqnic->dev_list_node, &mqnic_devices);
spin_unlock(&mqnic_devices_lock);
snprintf(mqnic->name, sizeof(mqnic->name), DRIVER_NAME "%d", mqnic->id);
mqnic_assign_id(mqnic);
// Disable ASPM
pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
@ -344,9 +356,7 @@ fail_map_bars:
fail_regions:
pci_disable_device(pdev);
fail_enable_device:
spin_lock(&mqnic_devices_lock);
list_del(&mqnic->dev_list_node);
spin_unlock(&mqnic_devices_lock);
mqnic_free_id(mqnic);
return ret;
}
@ -360,10 +370,6 @@ static void mqnic_pci_remove(struct pci_dev *pdev)
misc_deregister(&mqnic->misc_dev);
spin_lock(&mqnic_devices_lock);
list_del(&mqnic->dev_list_node);
spin_unlock(&mqnic_devices_lock);
for (k = 0; k < ARRAY_SIZE(mqnic->interface); k++)
if (mqnic->interface[k])
mqnic_destroy_interface(&mqnic->interface[k]);
@ -381,6 +387,7 @@ static void mqnic_pci_remove(struct pci_dev *pdev)
pci_iounmap(pdev, mqnic->ram_hw_addr);
pci_release_regions(pdev);
pci_disable_device(pdev);
mqnic_free_id(mqnic);
}
static void mqnic_pci_shutdown(struct pci_dev *pdev)