Merge tag 'tomoyo-pr-20230903' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1

Pull tomoyo updates from Tetsuo Handa:
 "Three cleanup patches, no behavior changes"

* tag 'tomoyo-pr-20230903' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1:
  tomoyo: remove unused function declaration
  tomoyo: refactor deprecated strncpy
  tomoyo: add format attributes to functions

Author: torvalds

security/tomoyo/common.c

@@ -184,6 +184,7 @@ static bool tomoyo_manage_by_non_root;
  *
  * Returns nothing.
  */
+__printf(3, 4)
 static void tomoyo_addprintf(char *buffer, int len, const char *fmt, ...)
 {
 	va_list args;

security/tomoyo/common.h

@@ -954,7 +954,7 @@ bool tomoyo_str_starts(char **src, const char *find);
 char *tomoyo_encode(const char *str);
 char *tomoyo_encode2(const char *str, int str_len);
 char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt,
-		      va_list args);
+		      va_list args) __printf(3, 0);
 char *tomoyo_read_token(struct tomoyo_acl_param *param);
 char *tomoyo_realpath_from_path(const struct path *path);
 char *tomoyo_realpath_nofollow(const char *pathname);
@@ -1037,8 +1037,6 @@ struct tomoyo_policy_namespace *tomoyo_assign_namespace
 (const char *domainname);
 struct tomoyo_profile *tomoyo_profile(const struct tomoyo_policy_namespace *ns,
 				      const u8 profile);
-unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
-				const u8 index);
 u8 tomoyo_parse_ulong(unsigned long *result, char **str);
 void *tomoyo_commit_ok(void *data, const unsigned int size);
 void __init tomoyo_load_builtin_policy(void);
@@ -1067,7 +1065,7 @@ void tomoyo_warn_oom(const char *function);
 void tomoyo_write_log(struct tomoyo_request_info *r, const char *fmt, ...)
 	__printf(2, 3);
 void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
-		       va_list args);
+		       va_list args) __printf(3, 0);
 
 /********** External variable definitions. **********/
 

security/tomoyo/domain.c

@@ -784,13 +784,12 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 		if (!strcmp(domainname, "parent")) {
 			char *cp;
 
-			strncpy(ee->tmp, old_domain->domainname->name,
-				TOMOYO_EXEC_TMPSIZE - 1);
+			strscpy(ee->tmp, old_domain->domainname->name, TOMOYO_EXEC_TMPSIZE);
 			cp = strrchr(ee->tmp, ' ');
 			if (cp)
 				*cp = '\0';
 		} else if (*domainname == '<')
-			strncpy(ee->tmp, domainname, TOMOYO_EXEC_TMPSIZE - 1);
+			strscpy(ee->tmp, domainname, TOMOYO_EXEC_TMPSIZE);
 		else
 			snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "%s %s",
 				 old_domain->domainname->name, domainname);