#include <linux/pci-acpi.h>
#include "pci.h"
+static bool device_has_acpi_name(struct device *dev)
+{
+#ifdef CONFIG_ACPI
+ acpi_handle handle = ACPI_HANDLE(dev);
+
+ if (!handle)
+ return false;
+
+ return acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2,
+ 1 << DSM_PCI_DEVICE_NAME);
+#else
+ return false;
+#endif
+}
+
#ifdef CONFIG_DMI
enum smbios_attr_enum {
SMBIOS_ATTR_NONE = 0,
{
const struct dmi_device *dmi;
struct dmi_dev_onboard *donboard;
- int domain_nr;
- int bus;
- int devfn;
-
- domain_nr = pci_domain_nr(pdev->bus);
- bus = pdev->bus->number;
- devfn = pdev->devfn;
+ int domain_nr = pci_domain_nr(pdev->bus);
+ int bus = pdev->bus->number;
+ int devfn = pdev->devfn;
dmi = NULL;
while ((dmi = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD,
donboard->devfn == devfn) {
if (buf) {
if (attribute == SMBIOS_ATTR_INSTANCE_SHOW)
- return scnprintf(buf, PAGE_SIZE,
- "%d\n",
- donboard->instance);
+ return sysfs_emit(buf, "%d\n",
+ donboard->instance);
else if (attribute == SMBIOS_ATTR_LABEL_SHOW)
- return scnprintf(buf, PAGE_SIZE,
- "%s\n",
- dmi->name);
+ return sysfs_emit(buf, "%s\n",
+ dmi->name);
}
return strlen(dmi->name);
}
return 0;
}
-static umode_t smbios_instance_string_exist(struct kobject *kobj,
- struct attribute *attr, int n)
+static ssize_t smbios_label_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct device *dev;
- struct pci_dev *pdev;
-
- dev = kobj_to_dev(kobj);
- pdev = to_pci_dev(dev);
-
- return find_smbios_instance_string(pdev, NULL, SMBIOS_ATTR_NONE) ?
- S_IRUGO : 0;
-}
-
-static ssize_t smbioslabel_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct pci_dev *pdev;
- pdev = to_pci_dev(dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
return find_smbios_instance_string(pdev, buf,
SMBIOS_ATTR_LABEL_SHOW);
}
+static struct device_attribute dev_attr_smbios_label = __ATTR(label, 0444,
+ smbios_label_show, NULL);
-static ssize_t smbiosinstance_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t index_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct pci_dev *pdev;
- pdev = to_pci_dev(dev);
+ struct pci_dev *pdev = to_pci_dev(dev);
return find_smbios_instance_string(pdev, buf,
SMBIOS_ATTR_INSTANCE_SHOW);
}
+static DEVICE_ATTR_RO(index);
-static struct device_attribute smbios_attr_label = {
- .attr = {.name = "label", .mode = 0444},
- .show = smbioslabel_show,
-};
-
-static struct device_attribute smbios_attr_instance = {
- .attr = {.name = "index", .mode = 0444},
- .show = smbiosinstance_show,
-};
-
-static struct attribute *smbios_attributes[] = {
- &smbios_attr_label.attr,
- &smbios_attr_instance.attr,
+static struct attribute *smbios_attrs[] = {
+ &dev_attr_smbios_label.attr,
+ &dev_attr_index.attr,
NULL,
};
-static const struct attribute_group smbios_attr_group = {
- .attrs = smbios_attributes,
- .is_visible = smbios_instance_string_exist,
-};
-
-static int pci_create_smbiosname_file(struct pci_dev *pdev)
+static umode_t smbios_attr_is_visible(struct kobject *kobj, struct attribute *a,
+ int n)
{
- return sysfs_create_group(&pdev->dev.kobj, &smbios_attr_group);
-}
+ struct device *dev = kobj_to_dev(kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
-static void pci_remove_smbiosname_file(struct pci_dev *pdev)
-{
- sysfs_remove_group(&pdev->dev.kobj, &smbios_attr_group);
-}
-#else
-static inline int pci_create_smbiosname_file(struct pci_dev *pdev)
-{
- return -1;
-}
+ if (device_has_acpi_name(dev))
+ return 0;
-static inline void pci_remove_smbiosname_file(struct pci_dev *pdev)
-{
+ if (!find_smbios_instance_string(pdev, NULL, SMBIOS_ATTR_NONE))
+ return 0;
+
+ return a->mode;
}
+
+const struct attribute_group pci_dev_smbios_attr_group = {
+ .attrs = smbios_attrs,
+ .is_visible = smbios_attr_is_visible,
+};
#endif
#ifdef CONFIG_ACPI
static int dsm_get_label(struct device *dev, char *buf,
enum acpi_attr_enum attr)
{
- acpi_handle handle;
+ acpi_handle handle = ACPI_HANDLE(dev);
union acpi_object *obj, *tmp;
int len = -1;
- handle = ACPI_HANDLE(dev);
if (!handle)
return -1;
return len;
}
-static bool device_has_dsm(struct device *dev)
-{
- acpi_handle handle;
-
- handle = ACPI_HANDLE(dev);
- if (!handle)
- return false;
-
- return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2,
- 1 << DSM_PCI_DEVICE_NAME);
-}
-
-static umode_t acpi_index_string_exist(struct kobject *kobj,
- struct attribute *attr, int n)
-{
- struct device *dev;
-
- dev = kobj_to_dev(kobj);
-
- if (device_has_dsm(dev))
- return S_IRUGO;
-
- return 0;
-}
-
-static ssize_t acpilabel_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t label_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return dsm_get_label(dev, buf, ACPI_ATTR_LABEL_SHOW);
}
+static DEVICE_ATTR_RO(label);
-static ssize_t acpiindex_show(struct device *dev,
+static ssize_t acpi_index_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return dsm_get_label(dev, buf, ACPI_ATTR_INDEX_SHOW);
}
+static DEVICE_ATTR_RO(acpi_index);
-static struct device_attribute acpi_attr_label = {
- .attr = {.name = "label", .mode = 0444},
- .show = acpilabel_show,
-};
-
-static struct device_attribute acpi_attr_index = {
- .attr = {.name = "acpi_index", .mode = 0444},
- .show = acpiindex_show,
-};
-
-static struct attribute *acpi_attributes[] = {
- &acpi_attr_label.attr,
- &acpi_attr_index.attr,
+static struct attribute *acpi_attrs[] = {
+ &dev_attr_label.attr,
+ &dev_attr_acpi_index.attr,
NULL,
};
-static const struct attribute_group acpi_attr_group = {
- .attrs = acpi_attributes,
- .is_visible = acpi_index_string_exist,
-};
-
-static int pci_create_acpi_index_label_files(struct pci_dev *pdev)
+static umode_t acpi_attr_is_visible(struct kobject *kobj, struct attribute *a,
+ int n)
{
- return sysfs_create_group(&pdev->dev.kobj, &acpi_attr_group);
-}
+ struct device *dev = kobj_to_dev(kobj);
-static int pci_remove_acpi_index_label_files(struct pci_dev *pdev)
-{
- sysfs_remove_group(&pdev->dev.kobj, &acpi_attr_group);
- return 0;
-}
-#else
-static inline int pci_create_acpi_index_label_files(struct pci_dev *pdev)
-{
- return -1;
-}
+ if (!device_has_acpi_name(dev))
+ return 0;
-static inline int pci_remove_acpi_index_label_files(struct pci_dev *pdev)
-{
- return -1;
+ return a->mode;
}
-static inline bool device_has_dsm(struct device *dev)
-{
- return false;
-}
+const struct attribute_group pci_dev_acpi_attr_group = {
+ .attrs = acpi_attrs,
+ .is_visible = acpi_attr_is_visible,
+};
#endif
-
-void pci_create_firmware_label_files(struct pci_dev *pdev)
-{
- if (device_has_dsm(&pdev->dev))
- pci_create_acpi_index_label_files(pdev);
- else
- pci_create_smbiosname_file(pdev);
-}
-
-void pci_remove_firmware_label_files(struct pci_dev *pdev)
-{
- if (device_has_dsm(&pdev->dev))
- pci_remove_acpi_index_label_files(pdev);
- else
- pci_remove_smbiosname_file(pdev);
-}
projects / linux-2.6-microblaze.git / blobdiff