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authorJohn Johansen <john.johansen@canonical.com>2021-09-03 09:27:31 +0300
committerJohn Johansen <john.johansen@canonical.com>2021-11-03 11:08:15 +0300
commit4d47fbbe54bf75b72eac3f5a0caa664300937620 (patch)
tree62b70be6926976735356b2b9dbc466334a925c32
parentd0d845a790d31adb0c90f1f8364de199b23128c8 (diff)
downloadlinux-4d47fbbe54bf75b72eac3f5a0caa664300937620.tar.xz
apparmor: fix zero-length compiler warning in AA_BUG()
Uses of AA_BUG() without a message can result in the compiler warning warning: zero-length gnu_printf format string [-Wformat-zero-length] Fix this with a pragma for now. A larger rework of AA_BUG() will follow. Signed-off-by: John Johansen <john.johansen@canonical.com>
-rw-r--r--security/apparmor/include/lib.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
index 67fbb81a11f3..e2e8df0c6f1c 100644
--- a/security/apparmor/include/lib.h
+++ b/security/apparmor/include/lib.h
@@ -31,7 +31,12 @@
#define AA_WARN(X) WARN((X), "APPARMOR WARN %s: %s\n", __func__, #X)
-#define AA_BUG(X, args...) AA_BUG_FMT((X), "" args)
+#define AA_BUG(X, args...) \
+ do { \
+ _Pragma("GCC diagnostic ignored \"-Wformat-zero-length\""); \
+ AA_BUG_FMT((X), "" args); \
+ _Pragma("GCC diagnostic warning \"-Wformat-zero-length\""); \
+ } while (0)
#ifdef CONFIG_SECURITY_APPARMOR_DEBUG_ASSERTS
#define AA_BUG_FMT(X, fmt, args...) \
WARN((X), "AppArmor WARN %s: (" #X "): " fmt, __func__, ##args)