linux-kernel - [PATCH 2/2] module: move CONFIG_UNUSED

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Date:   Mon,  9 Sep 2019 20:04:08 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Jessica Yu <jeyu@...nel.org>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES

When CONFIG_MODULES is disabled, CONFIG_UNUSED_SYMBOLS is pointless,
thus it should be invisible.

Instead of adding "depends on MODULES", I moved it to the sub-menu
"Enable loadable module support", which is a better fit. I put it
close to TRIM_UNUSED_KSYMS because it depends on !UNUSED_SYMBOLS.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 init/Kconfig      | 16 ++++++++++++++++
 lib/Kconfig.debug | 16 ----------------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 9e72cc6071f5..b3100aa3138f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2117,6 +2117,22 @@ config MODULE_COMPRESS_XZ
 
 endchoice
 
+config UNUSED_SYMBOLS
+	bool "Enable unused/obsolete exported symbols"
+	default y if X86
+	help
+	  Unused but exported symbols make the kernel needlessly bigger.  For
+	  that reason most of these unused exports will soon be removed.  This
+	  option is provided temporarily to provide a transition period in case
+	  some external kernel module needs one of these symbols anyway. If you
+	  encounter such a case in your module, consider if you are actually
+	  using the right API.  (rationale: since nobody in the kernel is using
+	  this in a module, there is a pretty good chance it's actually the
+	  wrong interface to use).  If you really need the symbol, please send a
+	  mail to the linux kernel mailing list mentioning the symbol and why
+	  you really need it, and what the merge plan to the mainline kernel for
+	  your module is.
+
 config TRIM_UNUSED_KSYMS
 	bool "Trim unused exported kernel symbols"
 	depends on !UNUSED_SYMBOLS
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 5960e2980a8a..e0e14780a13d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -277,22 +277,6 @@ config READABLE_ASM
           to keep kernel developers who have to stare a lot at assembler listings
           sane.
 
-config UNUSED_SYMBOLS
-	bool "Enable unused/obsolete exported symbols"
-	default y if X86
-	help
-	  Unused but exported symbols make the kernel needlessly bigger.  For
-	  that reason most of these unused exports will soon be removed.  This
-	  option is provided temporarily to provide a transition period in case
-	  some external kernel module needs one of these symbols anyway. If you
-	  encounter such a case in your module, consider if you are actually
-	  using the right API.  (rationale: since nobody in the kernel is using
-	  this in a module, there is a pretty good chance it's actually the
-	  wrong interface to use).  If you really need the symbol, please send a
-	  mail to the linux kernel mailing list mentioning the symbol and why
-	  you really need it, and what the merge plan to the mainline kernel for
-	  your module is.
-
 config DEBUG_FS
 	bool "Debug Filesystem"
 	help
-- 
2.17.1