linux-kernel - [PATCH 5.15 852/917] MIPS: fix *-pkg builds for loongson2ef platform

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Message-Id: <20211115165457.921703551@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:05:47 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jason Self <jason@...ehome.net>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: [PATCH 5.15 852/917] MIPS: fix *-pkg builds for loongson2ef platform

From: Masahiro Yamada <masahiroy@...nel.org>

commit 0706f74f719e6e72c3a862ab2990796578fa73cc upstream.

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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/mips/Makefile |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -254,7 +254,9 @@ 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)