1 files changed, 89 insertions, 122 deletions

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 228bdb626502..7f3e7e77e794 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -83,7 +83,6 @@ struct acpi_pci_link_irq {
 struct acpi_pci_link {
         struct list_head node;
         struct acpi_device *device;
-        acpi_handle handle;
         struct acpi_pci_link_irq irq;
         int refcnt;
 };
@@ -107,26 +106,23 @@ 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) {
-                                ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                                  "Blank IRQ resource\n"));
-                                return_ACPI_STATUS(AE_OK);
+                                printk(KERN_WARNING PREFIX "Blank IRQ resource\n");
+                                return AE_OK;
                         }
                         for (i = 0;
                              (i < p->interrupt_count
                               && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
                                 if (!p->interrupts[i]) {
-                                        ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                                          "Invalid IRQ %d\n",
-                                                          p->interrupts[i]));
+                                        printk(KERN_WARNING PREFIX "Invalid IRQ %d\n",
+                                                      p->interrupts[i]);
                                         continue;
                                 }
                                 link->irq.possible[i] = p->interrupts[i];
@@ -142,17 +138,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
                         struct acpi_resource_extended_irq *p =
                             &resource->data.extended_irq;
                         if (!p || !p->interrupt_count) {
-                                ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                                  "Blank EXT IRQ resource\n"));
-                                return_ACPI_STATUS(AE_OK);
+                                printk(KERN_WARNING PREFIX
+                                              "Blank EXT IRQ resource\n");
+                                return AE_OK;
                         }
                         for (i = 0;
                              (i < p->interrupt_count
                               && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
                                 if (!p->interrupts[i]) {
-                                        ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                                          "Invalid IRQ %d\n",
-                                                          p->interrupts[i]));
+                                        printk(KERN_WARNING PREFIX "Invalid IRQ %d\n",
+                                                      p->interrupts[i]);
                                         continue;
                                 }
                                 link->irq.possible[i] = p->interrupts[i];
@@ -164,35 +159,33 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
                         break;
                 }
         default:
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Resource is not an IRQ entry\n"));
-                return_ACPI_STATUS(AE_OK);
+                printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n");
+                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,
+        status = acpi_walk_resources(link->device->handle, METHOD_NAME__PRS,
                                      acpi_pci_link_check_possible, link);
         if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PRS\n"));
-                return_VALUE(-ENODEV);
+                ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS"));
+                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
@@ -200,7 +193,6 @@ 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:
@@ -213,7 +205,7 @@ 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;
@@ -227,20 +219,20 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
                                  * extended IRQ descriptors must
                                  * return at least 1 IRQ
                                  */
-                                ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                                  "Blank EXT IRQ resource\n"));
-                                return_ACPI_STATUS(AE_OK);
+                                printk(KERN_WARNING PREFIX
+                                              "Blank EXT IRQ resource\n");
+                                return AE_OK;
                         }
                         *irq = p->interrupts[0];
                         break;
                 }
                 break;
         default:
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Resource %d isn't an IRQ\n", resource->type));
+                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;
 }
 
 /*
@@ -256,10 +248,8 @@ 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);
+        if (!link)
+                return -EINVAL;
 
         link->irq.active = 0;
 
@@ -268,14 +258,13 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
                 /* Query _STA, set link->device->status */
                 result = acpi_bus_get_status(link->device);
                 if (result) {
-                        ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                          "Unable to read status\n"));
+                        printk(KERN_ERR PREFIX "Unable to read status\n");
                         goto end;
                 }
 
                 if (!link->device->status.enabled) {
                         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link disabled\n"));
-                        return_VALUE(0);
+                        return 0;
                 }
         }
 
@@ -283,16 +272,16 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
          * Query and parse _CRS to get the current IRQ assignment. 
          */
 
-        status = acpi_walk_resources(link->handle, METHOD_NAME__CRS,
+        status = acpi_walk_resources(link->device->handle, METHOD_NAME__CRS,
                                      acpi_pci_link_check_current, &irq);
         if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _CRS\n"));
+                ACPI_EXCEPTION((AE_INFO, status, "Evaluating _CRS"));
                 result = -ENODEV;
                 goto end;
         }
 
         if (acpi_strict && !irq) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "_CRS returned 0\n"));
+                printk(KERN_ERR PREFIX "_CRS returned 0\n");
                 result = -ENODEV;
         }
 
@@ -301,7 +290,7 @@ 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)
@@ -314,14 +303,13 @@ 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;
@@ -362,7 +350,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
                 /* ignore resource_source, it's optional */
                 break;
         default:
-                printk("ACPI BUG: resource_type %d\n", link->irq.resource_type);
+                printk(KERN_ERR PREFIX "Invalid Resource_type %d\n", link->irq.resource_type);
                 result = -EINVAL;
                 goto end;
 
@@ -370,11 +358,11 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
 
         /* Attempt to set the resource */
-        status = acpi_set_current_resources(link->handle, &buffer);
+        status = acpi_set_current_resources(link->device->handle, &buffer);
 
         /* check for total failure */
         if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _SRS\n"));
+                ACPI_EXCEPTION((AE_INFO, status, "Evaluating _SRS"));
                 result = -ENODEV;
                 goto end;
         }
@@ -382,14 +370,14 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
         /* Query _STA, set device->status */
         result = acpi_bus_get_status(link->device);
         if (result) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unable to read status\n"));
+                printk(KERN_ERR PREFIX "Unable to read status\n");
                 goto end;
         }
         if (!link->device->status.enabled) {
                 printk(KERN_WARNING PREFIX
-                       "%s [%s] disabled and referenced, BIOS bug.\n",
-                       acpi_device_name(link->device),
-                       acpi_device_bid(link->device));
+                              "%s [%s] disabled and referenced, BIOS bug\n",
+                              acpi_device_name(link->device),
+                              acpi_device_bid(link->device));
         }
 
         /* Query _CRS, set link->irq.active */
@@ -408,9 +396,9 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
                  * assume _SRS worked and override _CRS value.
                  */
                 printk(KERN_WARNING PREFIX
-                       "%s [%s] BIOS reported IRQ %d, using IRQ %d\n",
-                       acpi_device_name(link->device),
-                       acpi_device_bid(link->device), link->irq.active, irq);
+                              "%s [%s] BIOS reported IRQ %d, using IRQ %d\n",
+                              acpi_device_name(link->device),
+                              acpi_device_bid(link->device), link->irq.active, irq);
                 link->irq.active = irq;
         }
 
@@ -418,7 +406,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
 
       end:
         kfree(resource);
-        return_VALUE(result);
+        return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -492,7 +480,6 @@ 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.
@@ -501,8 +488,7 @@ int __init acpi_irq_penalty_init(void)
 
                 link = list_entry(node, struct acpi_pci_link, node);
                 if (!link) {
-                        ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                          "Invalid link context\n"));
+                        printk(KERN_ERR PREFIX "Invalid link context\n");
                         continue;
                 }
 
@@ -530,7 +516,7 @@ 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 */
@@ -540,13 +526,12 @@ 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;
         }
 
         /*
@@ -562,7 +547,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
         if (i == link->irq.possible_count) {
                 if (acpi_strict)
                         printk(KERN_WARNING PREFIX "_CRS %d not found"
-                               " in _PRS\n", link->irq.active);
+                                      " in _PRS\n", link->irq.active);
                 link->irq.active = 0;
         }
 
@@ -589,12 +574,11 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 
         /* Attempt to enable the link device at this IRQ. */
         if (acpi_pci_link_set(link, irq)) {
-                printk(PREFIX
-                       "Unable to set IRQ for %s [%s] (likely buggy ACPI BIOS).\n"
-                       "Try pci=noacpi or acpi=off\n",
-                       acpi_device_name(link->device),
-                       acpi_device_bid(link->device));
-                return_VALUE(-ENODEV);
+                printk(KERN_ERR PREFIX "Unable to set IRQ for %s [%s]. "
+                            "Try pci=noacpi or acpi=off\n",
+                            acpi_device_name(link->device),
+                            acpi_device_bid(link->device));
+                return -ENODEV;
         } else {
                 acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
                 printk(PREFIX "%s [%s] enabled at IRQ %d\n",
@@ -604,7 +588,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 
         link->irq.initialized = 1;
 
-        return_VALUE(0);
+        return 0;
 }
 
 /*
@@ -622,36 +606,35 @@ 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) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link device\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Invalid link device\n");
+                return -1;
         }
 
         link = (struct acpi_pci_link *)acpi_driver_data(device);
         if (!link) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Invalid link context\n");
+                return -1;
         }
 
         /* TBD: Support multiple index (IRQ) entries per Link Device */
         if (index) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid index %d\n", index));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Invalid index %d\n", index);
+                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);
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Link active IRQ is 0!\n");
+                return -1;
         }
         link->refcnt++;
         mutex_unlock(&acpi_link_lock);
@@ -665,7 +648,7 @@ 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);
 }
 
 /*
@@ -678,25 +661,24 @@ 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) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link device\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Invalid link device\n");
+                return -1;
         }
 
         link = (struct acpi_pci_link *)acpi_driver_data(device);
         if (!link) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Invalid link context\n");
+                return -1;
         }
 
         mutex_lock(&acpi_link_lock);
         if (!link->irq.initialized) {
                 mutex_unlock(&acpi_link_lock);
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
-                return_VALUE(-1);
+                printk(KERN_ERR PREFIX "Link isn't initialized\n");
+                return -1;
         }
 #ifdef  FUTURE_USE
         /*
@@ -715,10 +697,10 @@ int acpi_pci_link_free_irq(acpi_handle handle)
                           acpi_device_bid(link->device)));
 
         if (link->refcnt == 0) {
-                acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+                acpi_ut_evaluate_object(link->device->handle, "_DIS", 0, NULL);
         }
         mutex_unlock(&acpi_link_lock);
-        return_VALUE(link->irq.active);
+        return (link->irq.active);
 }
 
 /* --------------------------------------------------------------------------
@@ -732,18 +714,16 @@ 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;
-        link->handle = device->handle;
         strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
         acpi_driver_data(device) = link;
@@ -782,62 +762,51 @@ static int acpi_pci_link_add(struct acpi_device *device)
 
       end:
         /* disable all links -- to be activated on use */
-        acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+        acpi_ut_evaluate_object(device->handle, "_DIS", 0, NULL);
         mutex_unlock(&acpi_link_lock);
 
         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;
 }
 
-/*
- * FIXME: this is a workaround to avoid nasty warning.  It will be removed
- * after every device calls pci_disable_device in .resume.
- */
-int acpi_in_resume;
 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);
 
-        acpi_in_resume = 1;
         list_for_each(node, &acpi_link.entries) {
                 link = list_entry(node, struct acpi_pci_link, node);
                 if (!link) {
-                        ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                          "Invalid link context\n"));
+                        printk(KERN_ERR PREFIX "Invalid link context\n");
                         continue;
                 }
                 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);
 
@@ -847,7 +816,7 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type)
 
         kfree(link);
 
-        return_VALUE(0);
+        return 0;
 }
 
 /*
@@ -953,34 +922,32 @@ 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);