kobject: remove kset from struct kset_uevent_ops callbacks

There is no need to pass the pointer to the kset in the struct
kset_uevent_ops callbacks as no one uses it, so just remove that pointer
entirely.

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Wedson Almeida Filho <wedsonaf@google.com>
Link: https://lore.kernel.org/r/20211227163924.3970661-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

10 files changed, 22 insertions, 28 deletions

diff --git a/Documentation/core-api/kobject.rst b/Documentation/core-api/kobject.rst
index d3b5bf9f643a..3d6e3107315d 100644
--- a/Documentation/core-api/kobject.rst
+++ b/Documentation/core-api/kobject.rst
@@ -373,10 +373,9 @@ If a kset wishes to control the uevent operations of the kobjects
 associated with it, it can use the struct kset_uevent_ops to handle it::
 
   struct kset_uevent_ops {
-          int (* const filter)(struct kset *kset, struct kobject *kobj);
-          const char *(* const name)(struct kset *kset, struct kobject *kobj);
-          int (* const uevent)(struct kset *kset, struct kobject *kobj,
-                        struct kobj_uevent_env *env);
+          int (* const filter)(struct kobject *kobj);
+          const char *(* const name)(struct kobject *kobj);
+          int (* const uevent)(struct kobject *kobj, struct kobj_uevent_env *env);
   };
 
 
diff --git a/Documentation/translations/zh_CN/core-api/kobject.rst b/Documentation/translations/zh_CN/core-api/kobject.rst
index b7c37794cc7f..95634083dca0 100644
--- a/Documentation/translations/zh_CN/core-api/kobject.rst
+++ b/Documentation/translations/zh_CN/core-api/kobject.rst
@@ -325,10 +325,9 @@ ksets
 结构体kset_uevent_ops来处理它::
 
   struct kset_uevent_ops {
-          int (* const filter)(struct kset *kset, struct kobject *kobj);
-          const char *(* const name)(struct kset *kset, struct kobject *kobj);
-          int (* const uevent)(struct kset *kset, struct kobject *kobj,
-                        struct kobj_uevent_env *env);
+          int (* const filter)(struct kobject *kobj);
+          const char *(* const name)(struct kobject *kobj);
+          int (* const uevent)(struct kobject *kobj, struct kobj_uevent_env *env);
   };
 
 
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index a64454f5f8c0..97936ec49bde 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -163,7 +163,7 @@ static struct kobj_type bus_ktype = {
 	.release	= bus_release,
 };
 
-static int bus_uevent_filter(struct kset *kset, struct kobject *kobj)
+static int bus_uevent_filter(struct kobject *kobj)
 {
 	const struct kobj_type *ktype = get_ktype(kobj);
 
diff --git a/drivers/base/core.c b/drivers/base/core.c
index d712ea11066b..60d703ebd123 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2261,7 +2261,7 @@ static struct kobj_type device_ktype = {
 };
 
 
-static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
+static int dev_uevent_filter(struct kobject *kobj)
 {
 	const struct kobj_type *ktype = get_ktype(kobj);
 
@@ -2275,7 +2275,7 @@ static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
 	return 0;
 }
 
-static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
+static const char *dev_uevent_name(struct kobject *kobj)
 {
 	struct device *dev = kobj_to_dev(kobj);
 
@@ -2286,8 +2286,7 @@ static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
 	return NULL;
 }
 
-static int dev_uevent(struct kset *kset, struct kobject *kobj,
-		      struct kobj_uevent_env *env)
+static int dev_uevent(struct kobject *kobj, struct kobj_uevent_env *env)
 {
 	struct device *dev = kobj_to_dev(kobj);
 	int retval = 0;
@@ -2382,7 +2381,7 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
 
 	/* respect filter */
 	if (kset->uevent_ops && kset->uevent_ops->filter)
-		if (!kset->uevent_ops->filter(kset, &dev->kobj))
+		if (!kset->uevent_ops->filter(&dev->kobj))
 			goto out;
 
 	env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
@@ -2390,7 +2389,7 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
 		return -ENOMEM;
 
 	/* let the kset specific function add its keys */
-	retval = kset->uevent_ops->uevent(kset, &dev->kobj, env);
+	retval = kset->uevent_ops->uevent(&dev->kobj, env);
 	if (retval)
 		goto out;
 
diff --git a/drivers/dma-buf/dma-buf-sysfs-stats.c b/drivers/dma-buf/dma-buf-sysfs-stats.c
index 053baadcada9..2bba0babcb62 100644
--- a/drivers/dma-buf/dma-buf-sysfs-stats.c
+++ b/drivers/dma-buf/dma-buf-sysfs-stats.c
@@ -132,7 +132,7 @@ void dma_buf_stats_teardown(struct dma_buf *dmabuf)
 
 
 /* Statistics files do not need to send uevents. */
-static int dmabuf_sysfs_uevent_filter(struct kset *kset, struct kobject *kobj)
+static int dmabuf_sysfs_uevent_filter(struct kobject *kobj)
 {
 	return 0;
 }
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 10eddfa6c3d7..0bbb346cb892 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -216,8 +216,7 @@ static int do_uevent(struct dlm_ls *ls, int in)
 	return ls->ls_uevent_result;
 }
 
-static int dlm_uevent(struct kset *kset, struct kobject *kobj,
-		      struct kobj_uevent_env *env)
+static int dlm_uevent(struct kobject *kobj, struct kobj_uevent_env *env)
 {
 	struct dlm_ls *ls = container_of(kobj, struct dlm_ls, ls_kobj);
 
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index c0a34d9ddee4..a6002b2d146d 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -767,8 +767,7 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
 	wait_for_completion(&sdp->sd_kobj_unregister);
 }
 
-static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
-		       struct kobj_uevent_env *env)
+static int gfs2_uevent(struct kobject *kobj, struct kobj_uevent_env *env)
 {
 	struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
 	struct super_block *s = sdp->sd_vfs;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 683172b2e094..ad90b49824dc 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -153,10 +153,9 @@ struct kobj_uevent_env {
 };
 
 struct kset_uevent_ops {
-	int (* const filter)(struct kset *kset, struct kobject *kobj);
-	const char *(* const name)(struct kset *kset, struct kobject *kobj);
-	int (* const uevent)(struct kset *kset, struct kobject *kobj,
-		      struct kobj_uevent_env *env);
+	int (* const filter)(struct kobject *kobj);
+	const char *(* const name)(struct kobject *kobj);
+	int (* const uevent)(struct kobject *kobj, struct kobj_uevent_env *env);
 };
 
 struct kobj_attribute {
diff --git a/kernel/params.c b/kernel/params.c
index 9b90e3c4d3c0..5b92310425c5 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -926,7 +926,7 @@ static const struct sysfs_ops module_sysfs_ops = {
 	.store = module_attr_store,
 };
 
-static int uevent_filter(struct kset *kset, struct kobject *kobj)
+static int uevent_filter(struct kobject *kobj)
 {
 	const struct kobj_type *ktype = get_ktype(kobj);
 
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index c87d5b6a8a55..7c44b7ae4c5c 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -501,7 +501,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	}
 	/* skip the event, if the filter returns zero. */
 	if (uevent_ops && uevent_ops->filter)
-		if (!uevent_ops->filter(kset, kobj)) {
+		if (!uevent_ops->filter(kobj)) {
 			pr_debug("kobject: '%s' (%p): %s: filter function "
 				 "caused the event to drop!\n",
 				 kobject_name(kobj), kobj, __func__);
@@ -510,7 +510,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 
 	/* originating subsystem */
 	if (uevent_ops && uevent_ops->name)
-		subsystem = uevent_ops->name(kset, kobj);
+		subsystem = uevent_ops->name(kobj);
 	else
 		subsystem = kobject_name(&kset->kobj);
 	if (!subsystem) {
@@ -554,7 +554,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 
 	/* let the kset specific function add its stuff */
 	if (uevent_ops && uevent_ops->uevent) {
-		retval = uevent_ops->uevent(kset, kobj, env);
+		retval = uevent_ops->uevent(kobj, env);
 		if (retval) {
 			pr_debug("kobject: '%s' (%p): %s: uevent() returned "
 				 "%d\n", kobject_name(kobj), kobj,