linux-kernel - [PATCH] asm-generic: add unlikely to default BUG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 29 Aug 2019 00:09:34 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Denis Efremov <efremov@...ux.com>, linux-kernel@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org
Subject: [PATCH] asm-generic: add unlikely to default BUG_ON(x)

Add unlikely to default BUG_ON(x) in !CONFIG_BUG. It makes
the define consistent with BUG_ON(x) in CONFIG_BUG.

Signed-off-by: Denis Efremov <efremov@...ux.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: <linux-arch@...r.kernel.org>
---
 include/asm-generic/bug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index aa6c093d9ce9..7357a3c942a0 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -185,7 +185,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint,
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) BUG(); } while (0)
+#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
 #endif
 
 #ifndef HAVE_ARCH_WARN_ON
-- 
2.21.0