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path: root/drivers/pci/pci-sysfs.c
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Diffstat (limited to 'drivers/pci/pci-sysfs.c')
-rw-r--r--drivers/pci/pci-sysfs.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 8568b207f18..a15f94072a6 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -29,7 +29,7 @@ static int sysfs_initialized; /* = 0 */
/* show configuration fields */
#define pci_config_attr(field, format_string) \
static ssize_t \
-field##_show(struct device *dev, char *buf) \
+field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pci_dev *pdev; \
\
@@ -44,7 +44,7 @@ pci_config_attr(subsystem_device, "0x%04x\n");
pci_config_attr(class, "0x%06x\n");
pci_config_attr(irq, "%u\n");
-static ssize_t local_cpus_show(struct device *dev, char *buf)
+static ssize_t local_cpus_show(struct device *dev, struct device_attribute *attr, char *buf)
{
cpumask_t mask = pcibus_to_cpumask(to_pci_dev(dev)->bus);
int len = cpumask_scnprintf(buf, PAGE_SIZE-2, mask);
@@ -54,7 +54,7 @@ static ssize_t local_cpus_show(struct device *dev, char *buf)
/* show resources */
static ssize_t
-resource_show(struct device * dev, char * buf)
+resource_show(struct device * dev, struct device_attribute *attr, char * buf)
{
struct pci_dev * pci_dev = to_pci_dev(dev);
char * str = buf;
@@ -73,6 +73,17 @@ resource_show(struct device * dev, char * buf)
return (str - buf);
}
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
+
+ return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
+ pci_dev->vendor, pci_dev->device,
+ pci_dev->subsystem_vendor, pci_dev->subsystem_device,
+ (u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
+ (u8)(pci_dev->class));
+}
+
struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(resource),
__ATTR_RO(vendor),
@@ -82,6 +93,7 @@ struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(class),
__ATTR_RO(irq),
__ATTR_RO(local_cpus),
+ __ATTR_RO(modalias),
__ATTR_NULL,
};
@@ -327,16 +339,17 @@ pci_create_resource_files(struct pci_dev *pdev)
if (!pci_resource_len(pdev, i))
continue;
- res_attr = kmalloc(sizeof(*res_attr) + 10, GFP_ATOMIC);
+ /* allocate attribute structure, piggyback attribute name */
+ res_attr = kcalloc(1, sizeof(*res_attr) + 10, GFP_ATOMIC);
if (res_attr) {
- memset(res_attr, 0, sizeof(*res_attr) + 10);
+ char *res_attr_name = (char *)(res_attr + 1);
+
pdev->res_attr[i] = res_attr;
- /* Allocated above after the res_attr struct */
- res_attr->attr.name = (char *)(res_attr + 1);
- sprintf(res_attr->attr.name, "resource%d", i);
- res_attr->size = pci_resource_len(pdev, i);
+ sprintf(res_attr_name, "resource%d", i);
+ res_attr->attr.name = res_attr_name;
res_attr->attr.mode = S_IRUSR | S_IWUSR;
res_attr->attr.owner = THIS_MODULE;
+ res_attr->size = pci_resource_len(pdev, i);
res_attr->mmap = pci_mmap_resource;
res_attr->private = &pdev->resource[i];
sysfs_create_bin_file(&pdev->dev.kobj, res_attr);