linux-kernel - [PATCH v1] trace: add the necessary dependencies of configuration options

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Date:   Fri, 14 Apr 2023 16:27:56 +0800
From:   sunying@...iscas.ac.cn
To:     rostedt@...dmis.org, mhiramat@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     linux-trace-kernel@...r.kernel.org,
        Ying Sun <sunying@...iscas.ac.cn>
Subject: [PATCH v1] trace: add the necessary dependencies of configuration options

From: Ying Sun <sunying@...iscas.ac.cn>

HAVE_NOP_MCOUNT is used only if the condition
"ifdef CONFIG_FTRACE_MCOUNT_USE_CC" is met in the Makefile,
adding a dependency constraint on this configuration option
 to prevent it from being set ‘y' but not taking effect.

Suggested-by: Yanjie Ren <renyanjie01@...il.com>
Signed-off-by: Ying Sun <sunying@...iscas.ac.cn>
---
 kernel/trace/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 8cf97fa4a4b3..c640f405cc91 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -77,6 +77,7 @@ config HAVE_FENTRY
 
 config HAVE_NOP_MCOUNT
 	bool
+	depends on FTRACE_MCOUNT_USE_CC
 	help
 	  Arch supports the gcc options -pg with -mrecord-mcount and -nop-mcount
 
-- 
2.17.1