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-rw-r--r--drivers/base/class.c42
-rw-r--r--drivers/base/core.c84
-rw-r--r--drivers/base/firmware_class.c11
-rw-r--r--drivers/base/memory.c3
-rw-r--r--drivers/base/platform.c6
5 files changed, 41 insertions, 105 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 4d2222618b78..ecd6336bffea 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -180,8 +180,7 @@ static void class_device_create_release(struct class_device *class_dev)
/* needed to allow these devices to have parent class devices */
static int class_device_create_uevent(struct class_device *class_dev,
- char **envp, int num_envp,
- char *buffer, int buffer_size)
+ struct kobj_uevent_env *env)
{
pr_debug("%s called for %s\n", __FUNCTION__, class_dev->class_id);
return 0;
@@ -403,64 +402,43 @@ static void remove_deprecated_class_device_links(struct class_device *cd)
{ }
#endif
-static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int class_uevent(struct kset *kset, struct kobject *kobj,
+ struct kobj_uevent_env *env)
{
struct class_device *class_dev = to_class_dev(kobj);
struct device *dev = class_dev->dev;
- int i = 0;
- int length = 0;
int retval = 0;
pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id);
if (MAJOR(class_dev->devt)) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MAJOR=%u", MAJOR(class_dev->devt));
+ add_uevent_var(env, "MAJOR=%u", MAJOR(class_dev->devt));
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MINOR=%u", MINOR(class_dev->devt));
+ add_uevent_var(env, "MINOR=%u", MINOR(class_dev->devt));
}
if (dev) {
const char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
if (path) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVPATH=%s", path);
+ add_uevent_var(env, "PHYSDEVPATH=%s", path);
kfree(path);
}
if (dev->bus)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", dev->bus->name);
+ add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", dev->driver->name);
+ add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name);
}
- /* terminate, set to next free slot, shrink available space */
- envp[i] = NULL;
- envp = &envp[i];
- num_envp -= i;
- buffer = &buffer[length];
- buffer_size -= length;
-
if (class_dev->uevent) {
/* have the class device specific function add its stuff */
- retval = class_dev->uevent(class_dev, envp, num_envp,
- buffer, buffer_size);
+ retval = class_dev->uevent(class_dev, env);
if (retval)
pr_debug("class_dev->uevent() returned %d\n", retval);
} else if (class_dev->class->uevent) {
/* have the class specific function add its stuff */
- retval = class_dev->class->uevent(class_dev, envp, num_envp,
- buffer, buffer_size);
+ retval = class_dev->class->uevent(class_dev, env);
if (retval)
pr_debug("class->uevent() returned %d\n", retval);
}
diff --git a/drivers/base/core.c b/drivers/base/core.c
index ec86d6fc2360..d487c032dc4a 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -141,33 +141,23 @@ static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
return NULL;
}
-static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int dev_uevent(struct kset *kset, struct kobject *kobj,
+ struct kobj_uevent_env *env)
{
struct device *dev = to_dev(kobj);
- int i = 0;
- int length = 0;
int retval = 0;
/* add the major/minor if present */
if (MAJOR(dev->devt)) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MAJOR=%u", MAJOR(dev->devt));
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MINOR=%u", MINOR(dev->devt));
+ add_uevent_var(env, "MAJOR=%u", MAJOR(dev->devt));
+ add_uevent_var(env, "MINOR=%u", MINOR(dev->devt));
}
if (dev->type && dev->type->name)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "DEVTYPE=%s", dev->type->name);
+ add_uevent_var(env, "DEVTYPE=%s", dev->type->name);
if (dev->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "DRIVER=%s", dev->driver->name);
+ add_uevent_var(env, "DRIVER=%s", dev->driver->name);
#ifdef CONFIG_SYSFS_DEPRECATED
if (dev->class) {
@@ -181,59 +171,43 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
path = kobject_get_path(&parent->kobj, GFP_KERNEL);
if (path) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVPATH=%s", path);
+ add_uevent_var(env, "PHYSDEVPATH=%s", path);
kfree(path);
}
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", parent->bus->name);
+ add_uevent_var(env, "PHYSDEVBUS=%s", parent->bus->name);
if (parent->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", parent->driver->name);
+ add_uevent_var(env, "PHYSDEVDRIVER=%s",
+ parent->driver->name);
}
} else if (dev->bus) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", dev->bus->name);
+ add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", dev->driver->name);
+ add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name);
}
#endif
- /* terminate, set to next free slot, shrink available space */
- envp[i] = NULL;
- envp = &envp[i];
- num_envp -= i;
- buffer = &buffer[length];
- buffer_size -= length;
-
+ /* have the bus specific function add its stuff */
if (dev->bus && dev->bus->uevent) {
- /* have the bus specific function add its stuff */
- retval = dev->bus->uevent(dev, envp, num_envp, buffer, buffer_size);
+ retval = dev->bus->uevent(dev, env);
if (retval)
pr_debug ("%s: bus uevent() returned %d\n",
__FUNCTION__, retval);
}
+ /* have the class specific function add its stuff */
if (dev->class && dev->class->dev_uevent) {
- /* have the class specific function add its stuff */
- retval = dev->class->dev_uevent(dev, envp, num_envp, buffer, buffer_size);
+ retval = dev->class->dev_uevent(dev, env);
if (retval)
pr_debug("%s: class uevent() returned %d\n",
__FUNCTION__, retval);
}
+ /* have the device type specific fuction add its stuff */
if (dev->type && dev->type->uevent) {
- /* have the device type specific fuction add its stuff */
- retval = dev->type->uevent(dev, envp, num_envp, buffer, buffer_size);
+ retval = dev->type->uevent(dev, env);
if (retval)
pr_debug("%s: dev_type uevent() returned %d\n",
__FUNCTION__, retval);
@@ -253,9 +227,7 @@ static ssize_t show_uevent(struct device *dev, struct device_attribute *attr,
{
struct kobject *top_kobj;
struct kset *kset;
- char *envp[32];
- char *data = NULL;
- char *pos;
+ struct kobj_uevent_env *env = NULL;
int i;
size_t count = 0;
int retval;
@@ -278,26 +250,20 @@ static ssize_t show_uevent(struct device *dev, struct device_attribute *attr,
if (!kset->uevent_ops->filter(kset, &dev->kobj))
goto out;
- data = (char *)get_zeroed_page(GFP_KERNEL);
- if (!data)
+ env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
+ if (!env)
return -ENOMEM;
/* let the kset specific function add its keys */
- pos = data;
- memset(envp, 0, sizeof(envp));
- retval = kset->uevent_ops->uevent(kset, &dev->kobj,
- envp, ARRAY_SIZE(envp),
- pos, PAGE_SIZE);
+ retval = kset->uevent_ops->uevent(kset, &dev->kobj, env);
if (retval)
goto out;
/* copy keys to file */
- for (i = 0; envp[i]; i++) {
- pos = &buf[count];
- count += sprintf(pos, "%s\n", envp[i]);
- }
+ for (i = 0; i < env->envp_idx; i++)
+ count += sprintf(&buf[count], "%s\n", env->envp[i]);
out:
- free_page((unsigned long)data);
+ kfree(env);
return count;
}
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b24efd4e3e3d..4a1b9bfc5471 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -88,19 +88,14 @@ static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store);
static void fw_dev_release(struct device *dev);
-static int firmware_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct firmware_priv *fw_priv = dev_get_drvdata(dev);
- int i = 0, len = 0;
- if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
- "FIRMWARE=%s", fw_priv->fw_id))
+ if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->fw_id))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
- "TIMEOUT=%i", loading_timeout))
+ if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
return -ENOMEM;
- envp[i] = NULL;
return 0;
}
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 74b96795d2f5..cb99daeae936 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -34,8 +34,7 @@ static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj)
return MEMORY_CLASS_NAME;
}
-static int memory_uevent(struct kset *kset, struct kobject *kobj, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int memory_uevent(struct kset *kset, struct kobj_uevent_env *env)
{
int retval = 0;
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 9bfc434d1327..a2e3910196e0 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -529,13 +529,11 @@ static struct device_attribute platform_dev_attrs[] = {
__ATTR_NULL,
};
-static int platform_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct platform_device *pdev = to_platform_device(dev);
- envp[0] = buffer;
- snprintf(buffer, buffer_size, "MODALIAS=platform:%s", pdev->name);
+ add_uevent_var(env, "MODALIAS=platform:%s", pdev->name);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-05 03:23:27 +0000