[PATCH 1/2] sysfs: constify sysfs create/remove files harder

Jani Nikula
2018-10-04T14:39:04Z

Let the passed in array be const (and thus placed in rodata) instead of
a mutable array of const pointers.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
fs/sysfs/file.c | 4 ++--
include/linux/sysfs.h | 8 ++++----
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 0a7252aecfa5..bb71db63c99c 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -334,7 +334,7 @@ int sysfs_create_file_ns(struct kobject *kobj, const struct attribute *attr,
}
EXPORT_SYMBOL_GPL(sysfs_create_file_ns);

-int sysfs_create_files(struct kobject *kobj, const struct attribute **ptr)
+int sysfs_create_files(struct kobject *kobj, const struct attribute * const *ptr)
{
int err = 0;
int i;
@@ -493,7 +493,7 @@ bool sysfs_remove_file_self(struct kobject *kobj, const struct attribute *attr)
return ret;
}

-void sysfs_remove_files(struct kobject *kobj, const struct attribute **ptr)
+void sysfs_remove_files(struct kobject *kobj, const struct attribute * const *ptr)
{
int i;
for (i = 0; ptr[i]; i++)
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 987cefa337de..786816cf4aa5 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -234,7 +234,7 @@ int __must_check sysfs_create_file_ns(struct kobject *kobj,
const struct attribute *attr,
const void *ns);
int __must_check sysfs_create_files(struct kobject *kobj,
- const struct attribute **attr);
+ const struct attribute * const *attr);
int __must_check sysfs_chmod_file(struct kobject *kobj,
const struct attribute *attr, umode_t mode);
struct kernfs_node *sysfs_break_active_protection(struct kobject *kobj,
@@ -243,7 +243,7 @@ void sysfs_unbreak_active_protection(struct kernfs_node *kn);
void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
const void *ns);
bool sysfs_remove_file_self(struct kobject *kobj, const struct attribute *attr);
-void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
+void sysfs_remove_files(struct kobject *kobj, const struct attribute * const *attr);

int __must_check sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr);
@@ -342,7 +342,7 @@ static inline int sysfs_create_file_ns(struct kobject *kobj,
}

static inline int sysfs_create_files(struct kobject *kobj,
- const struct attribute **attr)
+ const struct attribute * const *attr)
{
return 0;
}
@@ -377,7 +377,7 @@ static inline bool sysfs_remove_file_self(struct kobject *kobj,
}

static inline void sysfs_remove_files(struct kobject *kobj,
- const struct attribute **attr)
+ const struct attribute * const *attr)
{
}

--
2.11.0