linux-kernel - [PATCH 5/7] kbuild: hide CONFIG_TRIM_UNUSED_KSYMS code from external module building

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Message-Id: <1521045861-22418-6-git-send-email-yamada.masahiro@socionext.com>
Date:   Thu, 15 Mar 2018 01:44:19 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org
Cc:     Nicolas Pitre <nicolas.pitre@...aro.org>,
        Jarod Wilson <jarod@...hat.com>,
        Prarit Bhargava <prarit@...hat.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] kbuild: hide CONFIG_TRIM_UNUSED_KSYMS code from external module building

If CONFIG_TRIM_UNUSED_KYMS is enabled, KBUILD_MODULES is set.  This
code is unneeded for external module building because KBUILD_MODULES
is always set.  Move this code inside "ifeq ($(KBUILD_EXTMOD),)"
conditional.

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

 Makefile | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index decc870..e60b16f 100644
--- a/Makefile
+++ b/Makefile
@@ -603,13 +603,6 @@ else
 include/config/auto.conf: ;
 endif # $(dot-config)
 
-# For the kernel to actually contain only the needed exported symbols,
-# we have to build modules as well to determine what those symbols are.
-# (this can be evaluated only once include/config/auto.conf has been included)
-ifdef CONFIG_TRIM_UNUSED_KSYMS
-  KBUILD_MODULES := 1
-endif
-
 # The all: target is the default when no target is given on the
 # command line.
 # This allow a user to issue only 'make' to build a kernel including modules
@@ -1010,6 +1003,13 @@ ifdef CONFIG_TRIM_UNUSED_KSYMS
 	  "$(MAKE) -f $(srctree)/Makefile vmlinux"
 endif
 
+# For the kernel to actually contain only the needed exported symbols,
+# we have to build modules as well to determine what those symbols are.
+# (this can be evaluated only once include/config/auto.conf has been included)
+ifdef CONFIG_TRIM_UNUSED_KSYMS
+  KBUILD_MODULES := 1
+endif
+
 autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
 
 $(autoksyms_h):
-- 
2.7.4