consitify do_mount() arguments

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
(cherry picked from commit 808d4e3cfdcc52b19276175464f6dbca4df13b09)
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>

Change-Id: I70d4c162ea08089335c08d253c92bb4da3711c5e

security/capability.c

@@ -94,8 +94,8 @@ static int cap_sb_statfs(struct dentry *dentry)
 	return 0;
 }
 
-static int cap_sb_mount(char *dev_name, struct path *path, char *type,
-			unsigned long flags, void *data)
+static int cap_sb_mount(const char *dev_name, struct path *path,
+			const char *type, unsigned long flags, void *data)
 {
 	return 0;
 }

security/security.c

@@ -280,8 +280,8 @@ int security_sb_statfs(struct dentry *dentry)
 	return security_ops->sb_statfs(dentry);
 }
 
-int security_sb_mount(char *dev_name, struct path *path,
-                       char *type, unsigned long flags, void *data)
+int security_sb_mount(const char *dev_name, struct path *path,
+                       const char *type, unsigned long flags, void *data)
 {
 	return security_ops->sb_mount(dev_name, path, type, flags, data);
 }

security/selinux/hooks.c

@@ -2677,9 +2677,9 @@ static int selinux_sb_statfs(struct dentry *dentry)
 	return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
 }
 
-static int selinux_mount(char *dev_name,
+static int selinux_mount(const char *dev_name,
 			 struct path *path,
-			 char *type,
+			 const char *type,
 			 unsigned long flags,
 			 void *data)
 {

security/smack/smack_lsm.c

@@ -404,8 +404,8 @@ static int smack_sb_statfs(struct dentry *dentry)
  * Returns 0 if current can write the floor of the filesystem
  * being mounted on, an error code otherwise.
  */
-static int smack_sb_mount(char *dev_name, struct path *path,
-			  char *type, unsigned long flags, void *data)
+static int smack_sb_mount(const char *dev_name, struct path *path,
+			  const char *type, unsigned long flags, void *data)
 {
 	struct superblock_smack *sbp = path->dentry->d_sb->s_security;
 	struct smk_audit_info ad;

security/tomoyo/common.h

@@ -971,7 +971,7 @@ int tomoyo_init_request_info(struct tomoyo_request_info *r,
 			     const u8 index);
 int tomoyo_mkdev_perm(const u8 operation, struct path *path,
 		      const unsigned int mode, unsigned int dev);
-int tomoyo_mount_permission(char *dev_name, struct path *path,
+int tomoyo_mount_permission(const char *dev_name, struct path *path,
 			    const char *type, unsigned long flags,
 			    void *data_page);
 int tomoyo_open_control(const u8 type, struct file *file);

security/tomoyo/mount.c

@@ -71,7 +71,8 @@ static bool tomoyo_check_mount_acl(struct tomoyo_request_info *r,
  *
  * Caller holds tomoyo_read_lock().
  */
-static int tomoyo_mount_acl(struct tomoyo_request_info *r, char *dev_name,
+static int tomoyo_mount_acl(struct tomoyo_request_info *r,
+			    const char *dev_name,
 			    struct path *dir, const char *type,
 			    unsigned long flags)
 {
@@ -183,7 +184,7 @@ static int tomoyo_mount_acl(struct tomoyo_request_info *r, char *dev_name,
  *
  * Returns 0 on success, negative value otherwise.
  */
-int tomoyo_mount_permission(char *dev_name, struct path *path,
+int tomoyo_mount_permission(const char *dev_name, struct path *path,
 			    const char *type, unsigned long flags,
 			    void *data_page)
 {

security/tomoyo/tomoyo.c

@@ -406,8 +406,8 @@ static int tomoyo_path_chroot(struct path *path)
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_sb_mount(char *dev_name, struct path *path,
-			   char *type, unsigned long flags, void *data)
+static int tomoyo_sb_mount(const char *dev_name, struct path *path,
+			   const char *type, unsigned long flags, void *data)
 {
 	return tomoyo_mount_permission(dev_name, path, type, flags, data);
 }