From: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Date: Wed, 25 Sep 2024 14:31:51 +0000 (+0000)
Subject: kcsan: Remove redundant call of kallsyms_lookup_name()
X-Git-Tag: v6.13-rc1~189^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b86f7c9fad06b960f3ac5594cb3838a7eaeb1892;p=thirdparty%2Fkernel%2Flinux.git

kcsan: Remove redundant call of kallsyms_lookup_name()

There is no need to repeatedly call kallsyms_lookup_name, we can reuse
the return value of this function.

Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Signed-off-by: Marco Elver <elver@google.com>
---

diff --git a/kernel/kcsan/debugfs.c b/kernel/kcsan/debugfs.c
index b14072071889f..2af39ba5b70b9 100644
--- a/kernel/kcsan/debugfs.c
+++ b/kernel/kcsan/debugfs.c
@@ -179,8 +179,7 @@ retry_alloc:
 	}
 
 	/* Note: deduplicating should be done in userspace. */
-	report_filterlist.addrs[report_filterlist.used++] =
-		kallsyms_lookup_name(func);
+	report_filterlist.addrs[report_filterlist.used++] = addr;
 	report_filterlist.sorted = false;
 
 	raw_spin_unlock_irqrestore(&report_filterlist_lock, flags);