From: Arnd Bergmann <arnd@kernel.org>
To: Paul Moore <paul@paul-moore.com>, Eric Paris <eparis@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Richard Guy Briggs <rgb@redhat.com>,
Jules Irenge <jbi.octave@gmail.com>,
linux-audit@redhat.com, linux-kernel@vger.kernel.org
Subject: [PATCH] audit: avoid -Wempty-body warning
Date: Mon, 22 Mar 2021 12:45:32 +0100 [thread overview]
Message-ID: <20210322114536.3517661-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
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 <arnd@arndb.de>
---
kernel/audit.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/audit.h b/kernel/audit.h
index 3b9c0945225a..c39c5f3b8422 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -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()
--
2.29.2
next reply other threads:[~2021-03-22 11:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 11:45 Arnd Bergmann [this message]
2021-03-22 14:33 ` [PATCH] audit: avoid -Wempty-body warning Richard Guy Briggs
2021-03-22 16:28 ` Arnd Bergmann
2021-03-22 17:58 ` Richard Guy Briggs
2021-03-22 18:24 ` Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210322114536.3517661-1-arnd@kernel.org \
--to=arnd@kernel.org \
--cc=arnd@arndb.de \
--cc=eparis@redhat.com \
--cc=jbi.octave@gmail.com \
--cc=linux-audit@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paul@paul-moore.com \
--cc=rgb@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).