From: Arnd Bergmann Date: Mon, 22 Mar 2021 16:27:45 +0000 (+0100) Subject: audit: avoid -Wempty-body warning X-Git-Tag: v5.13-rc1~135^2~1 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d4ceb1d6e732b11d7226ff6d51adf2418bb1f60f;p=thirdparty%2Flinux.git audit: avoid -Wempty-body warning gcc warns about an empty statement when audit_remove_mark is defined to nothing: kernel/auditfilter.c: In function 'audit_data_to_entry': kernel/auditfilter.c:609:51: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 609 | audit_remove_mark(entry->rule.exe); /* that's the template one */ | ^ Change the macros to use the usual "do { } while (0)" instead, and change a few more that were (void)0, for consistency. Signed-off-by: Arnd Bergmann Acked-by: Richard Guy Briggs Signed-off-by: Paul Moore --- diff --git a/kernel/audit.h b/kernel/audit.h index 3b9c0945225a1..1522e100fd179 100644 --- a/kernel/audit.h +++ b/kernel/audit.h @@ -292,8 +292,8 @@ extern void audit_filter_inodes(struct task_struct *tsk, extern struct list_head *audit_killed_trees(void); #else /* CONFIG_AUDITSYSCALL */ #define auditsc_get_stamp(c, t, s) 0 -#define audit_put_watch(w) {} -#define audit_get_watch(w) {} +#define audit_put_watch(w) do { } while (0) +#define audit_get_watch(w) do { } while (0) #define audit_to_watch(k, p, l, o) (-EINVAL) #define audit_add_watch(k, l) (-EINVAL) #define audit_remove_watch_rule(k) BUG() @@ -302,8 +302,8 @@ extern struct list_head *audit_killed_trees(void); #define audit_alloc_mark(k, p, l) (ERR_PTR(-EINVAL)) #define audit_mark_path(m) "" -#define audit_remove_mark(m) -#define audit_remove_mark_rule(k) +#define audit_remove_mark(m) do { } while (0) +#define audit_remove_mark_rule(k) do { } while (0) #define audit_mark_compare(m, i, d) 0 #define audit_exe_compare(t, m) (-EINVAL) #define audit_dupe_exe(n, o) (-EINVAL) @@ -311,8 +311,8 @@ extern struct list_head *audit_killed_trees(void); #define audit_remove_tree_rule(rule) BUG() #define audit_add_tree_rule(rule) -EINVAL #define audit_make_tree(rule, str, op) -EINVAL -#define audit_trim_trees() (void)0 -#define audit_put_tree(tree) (void)0 +#define audit_trim_trees() do { } while (0) +#define audit_put_tree(tree) do { } while (0) #define audit_tag_tree(old, new) -EINVAL #define audit_tree_path(rule) "" /* never called */ #define audit_kill_trees(context) BUG()