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path: root/drivers/char/tpm/tpm.c
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Diffstat (limited to 'drivers/char/tpm/tpm.c')
-rw-r--r--drivers/char/tpm/tpm.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 84b2d46e6ff..b72050c851d 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -208,7 +208,8 @@ static const u8 pcrread[] = {
0, 0, 0, 0 /* PCR index */
};
-static ssize_t show_pcrs(struct device *dev, struct device_attribute *attr, char *buf)
+ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
u8 data[READ_PCR_RESULT_SIZE];
ssize_t len;
@@ -243,7 +244,7 @@ static ssize_t show_pcrs(struct device *dev, struct device_attribute *attr, char
return str - buf;
}
-static DEVICE_ATTR(pcrs, S_IRUGO, show_pcrs, NULL);
+EXPORT_SYMBOL_GPL(tpm_show_pcrs);
#define READ_PUBEK_RESULT_SIZE 314
static const u8 readpubek[] = {
@@ -252,7 +253,8 @@ static const u8 readpubek[] = {
0, 0, 0, 124, /* TPM_ORD_ReadPubek */
};
-static ssize_t show_pubek(struct device *dev, struct device_attribute *attr, char *buf)
+ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
u8 *data;
ssize_t len;
@@ -311,7 +313,7 @@ out:
return rc;
}
-static DEVICE_ATTR(pubek, S_IRUGO, show_pubek, NULL);
+EXPORT_SYMBOL_GPL(tpm_show_pubek);
#define CAP_VER_RESULT_SIZE 18
static const u8 cap_version[] = {
@@ -332,7 +334,8 @@ static const u8 cap_manufacturer[] = {
0, 0, 1, 3
};
-static ssize_t show_caps(struct device *dev, struct device_attribute *attr, char *buf)
+ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
u8 data[sizeof(cap_manufacturer)];
ssize_t len;
@@ -365,8 +368,20 @@ static ssize_t show_caps(struct device *dev, struct device_attribute *attr, char
return str - buf;
}
+EXPORT_SYMBOL_GPL(tpm_show_caps);
+
+ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+ if (chip == NULL)
+ return 0;
+
+ chip->vendor->cancel(chip);
+ return count;
+}
+EXPORT_SYMBOL_GPL(tpm_store_cancel);
-static DEVICE_ATTR(caps, S_IRUGO, show_caps, NULL);
/*
* Device file system interface to the TPM
@@ -517,9 +532,7 @@ void __devexit tpm_remove(struct pci_dev *pci_dev)
pci_set_drvdata(pci_dev, NULL);
misc_deregister(&chip->vendor->miscdev);
- device_remove_file(&pci_dev->dev, &dev_attr_pubek);
- device_remove_file(&pci_dev->dev, &dev_attr_pcrs);
- device_remove_file(&pci_dev->dev, &dev_attr_caps);
+ sysfs_remove_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
pci_disable_device(pci_dev);
@@ -648,9 +661,7 @@ dev_num_search_complete:
list_add(&chip->list, &tpm_chip_list);
- device_create_file(&pci_dev->dev, &dev_attr_pubek);
- device_create_file(&pci_dev->dev, &dev_attr_pcrs);
- device_create_file(&pci_dev->dev, &dev_attr_caps);
+ sysfs_create_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
return 0;
}