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From: Arnd Bergmann <arnd@arndb.de>
To: kbuild test robot <lkp@intel.com>
Cc: kbuild-all@01.org, Johannes Weiner <hannes@cmpxchg.org>,
	 Andrey Konovalov <andreyknvl@google.com>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	 Andrew Morton <akpm@linux-foundation.org>,
	 Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [mmotm:master 16/120] include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
Date: Thu, 25 Jul 2019 11:44:19 +0200	[thread overview]
Message-ID: <CAK8P3a3Mno1SWTcuAOT0Wa9VS15pdU6EfnkxLbDpyS55yO04+g@mail.gmail.com> (raw)
In-Reply-To: <201907251734.6zC6jamU%lkp@intel.com>

On Thu, Jul 25, 2019 at 11:19 AM kbuild test robot <lkp@intel.com> wrote:
>
> tree:   git://git.cmpxchg.org/linux-mmotm.git master
> head:   79b3e476080beb7faf41bddd6c3d7059cd1a5f31
> commit: b7ee4976128763d63714958ad3cb32a6e85554a1 [16/120] page flags: prioritize kasan bits over last-cpuid
> config: mips-fuloong2e_defconfig (attached as .config)
> compiler: mips64el-linux-gcc (GCC) 7.4.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout b7ee4976128763d63714958ad3cb32a6e85554a1
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.4.0 make.cross ARCH=mips
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
>    In file included from include/linux/mm_types.h:15:0,
>                     from arch/mips/include/asm/vdso.h:10,
>                     from arch/mips/vdso/vdso.h:23,
>                     from arch/mips/vdso/gettimeofday.c:7:
> >> include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
>     #error "Not enough bits in page flags"
>      ^~~~~
>
> vim +95 include/linux/page-flags-layout.h

I have reproduced the problem and found a solution, adding this in fixes the
build again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/mips/vdso/vdso.h b/arch/mips/vdso/vdso.h
index 14b1931be69c..b65b169778e3 100644
--- a/arch/mips/vdso/vdso.h
+++ b/arch/mips/vdso/vdso.h
@@ -9,6 +9,7 @@
 #if _MIPS_SIM != _MIPS_SIM_ABI64 && defined(CONFIG_64BIT)

 /* Building 32-bit VDSO for the 64-bit kernel. Fake a 32-bit Kconfig. */
+#define BUILD_VDSO32_64
 #undef CONFIG_64BIT
 #define CONFIG_32BIT 1
 #ifndef __ASSEMBLY__


      reply	other threads:[~2019-07-25  9:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-25  9:18 kbuild test robot
2019-07-25  9:44 ` Arnd Bergmann [this message]

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