diff options
Diffstat (limited to 'drivers/acpi/pci_link.c')
-rw-r--r-- | drivers/acpi/pci_link.c | 105 |
1 files changed, 45 insertions, 60 deletions
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index d7aa9c10335c..1badce27a83f 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -107,17 +107,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) struct acpi_pci_link *link = (struct acpi_pci_link *)context; u32 i = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible"); switch (resource->type) { case ACPI_RESOURCE_TYPE_START_DEPENDENT: - return_ACPI_STATUS(AE_OK); + return AE_OK; case ACPI_RESOURCE_TYPE_IRQ: { struct acpi_resource_irq *p = &resource->data.irq; if (!p || !p->interrupt_count) { printk(KERN_WARNING PREFIX "Blank IRQ resource\n"); - return_ACPI_STATUS(AE_OK); + return AE_OK; } for (i = 0; (i < p->interrupt_count @@ -142,7 +141,7 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) if (!p || !p->interrupt_count) { printk(KERN_WARNING PREFIX "Blank EXT IRQ resource\n"); - return_ACPI_STATUS(AE_OK); + return AE_OK; } for (i = 0; (i < p->interrupt_count @@ -162,33 +161,32 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) } default: printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n"); - return_ACPI_STATUS(AE_OK); + return AE_OK; } - return_ACPI_STATUS(AE_CTRL_TERMINATE); + return AE_CTRL_TERMINATE; } static int acpi_pci_link_get_possible(struct acpi_pci_link *link) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible"); if (!link) - return_VALUE(-EINVAL); + return -EINVAL; status = acpi_walk_resources(link->handle, METHOD_NAME__PRS, acpi_pci_link_check_possible, link); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS")); - return_VALUE(-ENODEV); + return -ENODEV; } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d possible IRQs\n", link->irq.possible_count)); - return_VALUE(0); + return 0; } static acpi_status @@ -196,7 +194,6 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) { int *irq = (int *)context; - ACPI_FUNCTION_TRACE("acpi_pci_link_check_current"); switch (resource->type) { case ACPI_RESOURCE_TYPE_IRQ: @@ -209,7 +206,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Blank IRQ resource\n")); - return_ACPI_STATUS(AE_OK); + return AE_OK; } *irq = p->interrupts[0]; break; @@ -225,7 +222,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) */ printk(KERN_WARNING PREFIX "Blank EXT IRQ resource\n"); - return_ACPI_STATUS(AE_OK); + return AE_OK; } *irq = p->interrupts[0]; break; @@ -234,9 +231,9 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) default: printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type); case ACPI_RESOURCE_TYPE_END_TAG: - return_ACPI_STATUS(AE_OK); + return AE_OK; } - return_ACPI_STATUS(AE_CTRL_TERMINATE); + return AE_CTRL_TERMINATE; } /* @@ -252,10 +249,9 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) acpi_status status = AE_OK; int irq = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_get_current"); if (!link || !link->handle) - return_VALUE(-EINVAL); + return -EINVAL; link->irq.active = 0; @@ -270,7 +266,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) if (!link->device->status.enabled) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link disabled\n")); - return_VALUE(0); + return 0; } } @@ -296,7 +292,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active)); end: - return_VALUE(result); + return result; } static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) @@ -309,14 +305,13 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) } *resource; struct acpi_buffer buffer = { 0, NULL }; - ACPI_FUNCTION_TRACE("acpi_pci_link_set"); if (!link || !irq) - return_VALUE(-EINVAL); + return -EINVAL; resource = kmalloc(sizeof(*resource) + 1, GFP_ATOMIC); if (!resource) - return_VALUE(-ENOMEM); + return -ENOMEM; memset(resource, 0, sizeof(*resource) + 1); buffer.length = sizeof(*resource) + 1; @@ -413,7 +408,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) end: kfree(resource); - return_VALUE(result); + return result; } /* -------------------------------------------------------------------------- @@ -487,7 +482,6 @@ int __init acpi_irq_penalty_init(void) struct acpi_pci_link *link = NULL; int i = 0; - ACPI_FUNCTION_TRACE("acpi_irq_penalty_init"); /* * Update penalties to facilitate IRQ balancing. @@ -524,7 +518,7 @@ int __init acpi_irq_penalty_init(void) /* Add a penalty for the SCI */ acpi_irq_penalty[acpi_fadt.sci_int] += PIRQ_PENALTY_PCI_USING; - return_VALUE(0); + return 0; } static int acpi_irq_balance; /* 0: static, 1: balance */ @@ -534,13 +528,12 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) int irq; int i; - ACPI_FUNCTION_TRACE("acpi_pci_link_allocate"); if (link->irq.initialized) { if (link->refcnt == 0) /* This means the link is disabled but initialized */ acpi_pci_link_set(link, link->irq.active); - return_VALUE(0); + return 0; } /* @@ -587,7 +580,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) "Try pci=noacpi or acpi=off\n", acpi_device_name(link->device), acpi_device_bid(link->device)); - return_VALUE(-ENODEV); + return -ENODEV; } else { acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING; printk(PREFIX "%s [%s] enabled at IRQ %d\n", @@ -597,7 +590,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) link->irq.initialized = 1; - return_VALUE(0); + return 0; } /* @@ -615,36 +608,35 @@ acpi_pci_link_allocate_irq(acpi_handle handle, struct acpi_device *device = NULL; struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq"); result = acpi_bus_get_device(handle, &device); if (result) { printk(KERN_ERR PREFIX "Invalid link device\n"); - return_VALUE(-1); + return -1; } link = (struct acpi_pci_link *)acpi_driver_data(device); if (!link) { printk(KERN_ERR PREFIX "Invalid link context\n"); - return_VALUE(-1); + return -1; } /* TBD: Support multiple index (IRQ) entries per Link Device */ if (index) { printk(KERN_ERR PREFIX "Invalid index %d\n", index); - return_VALUE(-1); + return -1; } mutex_lock(&acpi_link_lock); if (acpi_pci_link_allocate(link)) { mutex_unlock(&acpi_link_lock); - return_VALUE(-1); + return -1; } if (!link->irq.active) { mutex_unlock(&acpi_link_lock); printk(KERN_ERR PREFIX "Link active IRQ is 0!\n"); - return_VALUE(-1); + return -1; } link->refcnt++; mutex_unlock(&acpi_link_lock); @@ -658,7 +650,7 @@ acpi_pci_link_allocate_irq(acpi_handle handle, ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link %s is referenced\n", acpi_device_bid(link->device))); - return_VALUE(link->irq.active); + return (link->irq.active); } /* @@ -671,25 +663,24 @@ int acpi_pci_link_free_irq(acpi_handle handle) struct acpi_pci_link *link = NULL; acpi_status result; - ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq"); result = acpi_bus_get_device(handle, &device); if (result) { printk(KERN_ERR PREFIX "Invalid link device\n"); - return_VALUE(-1); + return -1; } link = (struct acpi_pci_link *)acpi_driver_data(device); if (!link) { printk(KERN_ERR PREFIX "Invalid link context\n"); - return_VALUE(-1); + return -1; } mutex_lock(&acpi_link_lock); if (!link->irq.initialized) { mutex_unlock(&acpi_link_lock); printk(KERN_ERR PREFIX "Link isn't initialized\n"); - return_VALUE(-1); + return -1; } #ifdef FUTURE_USE /* @@ -711,7 +702,7 @@ int acpi_pci_link_free_irq(acpi_handle handle) acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); } mutex_unlock(&acpi_link_lock); - return_VALUE(link->irq.active); + return (link->irq.active); } /* -------------------------------------------------------------------------- @@ -725,14 +716,13 @@ static int acpi_pci_link_add(struct acpi_device *device) int i = 0; int found = 0; - ACPI_FUNCTION_TRACE("acpi_pci_link_add"); if (!device) - return_VALUE(-EINVAL); + return -EINVAL; link = kmalloc(sizeof(struct acpi_pci_link), GFP_KERNEL); if (!link) - return_VALUE(-ENOMEM); + return -ENOMEM; memset(link, 0, sizeof(struct acpi_pci_link)); link->device = device; @@ -781,17 +771,16 @@ static int acpi_pci_link_add(struct acpi_device *device) if (result) kfree(link); - return_VALUE(result); + return result; } static int acpi_pci_link_resume(struct acpi_pci_link *link) { - ACPI_FUNCTION_TRACE("acpi_pci_link_resume"); if (link->refcnt && link->irq.active && link->irq.initialized) - return_VALUE(acpi_pci_link_set(link, link->irq.active)); + return (acpi_pci_link_set(link, link->irq.active)); else - return_VALUE(0); + return 0; } /* @@ -804,7 +793,6 @@ static int irqrouter_resume(struct sys_device *dev) struct list_head *node = NULL; struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("irqrouter_resume"); /* Make sure SCI is enabled again (Apple firmware bug?) */ acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK); @@ -819,17 +807,16 @@ static int irqrouter_resume(struct sys_device *dev) acpi_pci_link_resume(link); } acpi_in_resume = 0; - return_VALUE(0); + return 0; } static int acpi_pci_link_remove(struct acpi_device *device, int type) { struct acpi_pci_link *link = NULL; - ACPI_FUNCTION_TRACE("acpi_pci_link_remove"); if (!device || !acpi_driver_data(device)) - return_VALUE(-EINVAL); + return -EINVAL; link = (struct acpi_pci_link *)acpi_driver_data(device); @@ -839,7 +826,7 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type) kfree(link); - return_VALUE(0); + return 0; } /* @@ -945,34 +932,32 @@ static int __init irqrouter_init_sysfs(void) { int error; - ACPI_FUNCTION_TRACE("irqrouter_init_sysfs"); if (acpi_disabled || acpi_noirq) - return_VALUE(0); + return 0; error = sysdev_class_register(&irqrouter_sysdev_class); if (!error) error = sysdev_register(&device_irqrouter); - return_VALUE(error); + return error; } device_initcall(irqrouter_init_sysfs); static int __init acpi_pci_link_init(void) { - ACPI_FUNCTION_TRACE("acpi_pci_link_init"); if (acpi_noirq) - return_VALUE(0); + return 0; acpi_link.count = 0; INIT_LIST_HEAD(&acpi_link.entries); if (acpi_bus_register_driver(&acpi_pci_link_driver) < 0) - return_VALUE(-ENODEV); + return -ENODEV; - return_VALUE(0); + return 0; } subsys_initcall(acpi_pci_link_init); |