linux-kernel - [PATCH] bug: add comments for BUG

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Date:	Sun, 11 Jan 2015 23:06:18 +0300
From:	Dmitry Voytik <voytikd@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Dmitry Voytik <voytikd@...il.com>
Subject: [PATCH] bug: add comments for BUG_ON() and BUG()

Signed-off-by: Dmitry Voytik <voytikd@...il.com>
---
 include/asm-generic/bug.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 630dd23..b0aa488 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -43,6 +43,10 @@ struct bug_entry {
  * If you're tempted to BUG(), think again:  is completely giving up
  * really the *only* solution?  There are usually better options, where
  * users don't need to reboot ASAP and can mostly shut down cleanly.
+ *
+ * Use BUG_ON(unexpected_fatal_condition) instead of just:
+ * if (unexpected_fatal_condition)
+ *	BUG();
  */
 #ifndef HAVE_ARCH_BUG
 #define BUG() do { \
-- 
1.9.1

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