linux-kernel - [PATCH 1/2] MIPS: fix *-pkg builds for loongson2ef platform

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Date:   Wed, 10 Nov 2021 00:01:45 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Jason Self <jason@...ehome.net>, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] MIPS: fix *-pkg builds for loongson2ef platform

Since commit 805b2e1d427a ("kbuild: include Makefile.compiler only when
compiler is needed"), package builds for the loongson2f platform fail.

  $ make ARCH=mips CROSS_COMPILE=mips64-linux- lemote2f_defconfig bindeb-pkg
    [ snip ]
  sh ./scripts/package/builddeb
  arch/mips/loongson2ef//Platform:36: *** only binutils >= 2.20.2 have needed option -mfix-loongson2f-nop.  Stop.
  cp: cannot stat '': No such file or directory
  make[5]: *** [scripts/Makefile.package:87: intdeb-pkg] Error 1
  make[4]: *** [Makefile:1558: intdeb-pkg] Error 2
  make[3]: *** [debian/rules:13: binary-arch] Error 2
  dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
  make[2]: *** [scripts/Makefile.package:83: bindeb-pkg] Error 2
  make[1]: *** [Makefile:1558: bindeb-pkg] Error 2
  make: *** [Makefile:350: __build_one_by_one] Error 2

The reason is because "make image_name" fails.

  $ make ARCH=mips CROSS_COMPILE=mips64-linux- image_name
  arch/mips/loongson2ef//Platform:36: *** only binutils >= 2.20.2 have needed option -mfix-loongson2f-nop.  Stop.

In general, adding $(error ...) in the parse stage is troublesome,
and it is pointless to check toolchains even if we are not building
anything. Do not include Kbuild.platform in such cases.

Fixes: 805b2e1d427a ("kbuild: include Makefile.compiler only when compiler is needed")
Reported-by: Jason Self <jason@...ehome.net>
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 arch/mips/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index e036fc025ccc..ace7f033de07 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -253,7 +253,9 @@ endif
 #
 # Board-dependent options and extra files
 #
+ifdef need-compiler
 include $(srctree)/arch/mips/Kbuild.platforms
+endif
 
 ifdef CONFIG_PHYSICAL_START
 load-y					= $(CONFIG_PHYSICAL_START)
-- 
2.30.2