driver core: class: mark the struct class for sysfs callbacks as constant

struct class should never be modified in a sysfs callback as there is
nothing in the structure to modify, and frankly, the structure is almost
never used in a sysfs callback, so mark it as constant to allow struct
class to be moved to read-only memory.

While we are touching all class sysfs callbacks also mark the attribute
as constant as it can not be modified.  The bonding code still uses this
structure so it can not be removed from the function callbacks.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Steve French <sfrench@samba.org>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-cifs@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: netdev@vger.kernel.org
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20230325084537.3622280-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/ksmbd/server.c b/fs/ksmbd/server.c
index b5af3e43e677..c2c958a5423e 100644
--- a/fs/ksmbd/server.c
+++ b/fs/ksmbd/server.c
@@ -418,7 +418,7 @@ int server_queue_ctrl_reset_work(void)
 	return __queue_ctrl_work(SERVER_CTRL_TYPE_RESET);
 }
 
-static ssize_t stats_show(struct class *class, struct class_attribute *attr,
+static ssize_t stats_show(const struct class *class, const struct class_attribute *attr,
 			  char *buf)
 {
 	/*
@@ -437,8 +437,8 @@ static ssize_t stats_show(struct class *class, struct class_attribute *attr,
 			  server_conf.ipc_last_active / HZ);
 }
 
-static ssize_t kill_server_store(struct class *class,
-				 struct class_attribute *attr, const char *buf,
+static ssize_t kill_server_store(const struct class *class,
+				 const struct class_attribute *attr, const char *buf,
 				 size_t len)
 {
 	if (!sysfs_streq(buf, "hard"))
@@ -458,7 +458,7 @@ static const char * const debug_type_strings[] = {"smb", "auth", "vfs",
 						  "oplock", "ipc", "conn",
 						  "rdma"};
 
-static ssize_t debug_show(struct class *class, struct class_attribute *attr,
+static ssize_t debug_show(const struct class *class, const struct class_attribute *attr,
 			  char *buf)
 {
 	ssize_t sz = 0;
@@ -476,7 +476,7 @@ static ssize_t debug_show(struct class *class, struct class_attribute *attr,
 	return sz;
 }
 
-static ssize_t debug_store(struct class *class, struct class_attribute *attr,
+static ssize_t debug_store(const struct class *class, const struct class_attribute *attr,
 			   const char *buf, size_t len)
 {
 	int i;