linux-kernel - [PATCH] kernel/module: Use BUG_ON instead of if condition followed by BUG.

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Date:   Tue, 30 Mar 2021 05:07:34 -0700
From:   zhouchuangao <zhouchuangao@...o.com>
To:     Jessica Yu <jeyu@...nel.org>, linux-kernel@...r.kernel.org
Cc:     zhouchuangao <zhouchuangao@...o.com>
Subject: [PATCH] kernel/module: Use BUG_ON instead of if condition followed by BUG.

It can be optimized at compile time.

Signed-off-by: zhouchuangao <zhouchuangao@...o.com>
---
 kernel/module.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/module.c b/kernel/module.c
index 3047935..f46fc4f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1014,8 +1014,8 @@ void __symbol_put(const char *symbol)
 	};

 	preempt_disable();
-	if (!find_symbol(&fsa))
-		BUG();
+	BUG_ON(!find_symbol(&fsa));
+
 	module_put(fsa.owner);
 	preempt_enable();
 }
-- 
2.7.4