The patch titled
Subject: page-flags-prioritize-kasan-bits-over-last-cpuid-fix
has been added to the -mm tree. Its filename is
page-flags-prioritize-kasan-bits-over-last-cpuid-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/page-flags-prioritize-kasan-bits-over-last-cpuid-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/page-flags-prioritize-kasan-bits-over-last-cpuid-fix.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: page-flags-prioritize-kasan-bits-over-last-cpuid-fix
> 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@xxxxxxxxx>
>
> 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.
Link: http://lkml.kernel.org/r/CAK8P3a3Mno1SWTcuAOT0Wa9VS15pdU6EfnkxLbDpyS55yO04+g@xxxxxxxxxxxxxx
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/mips/vdso/vdso.h | 1 +
1 file changed, 1 insertion(+)
--- a/arch/mips/vdso/vdso.h~page-flags-prioritize-kasan-bits-over-last-cpuid-fix
+++ a/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__
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
kasan-remove-clang-version-check-for-kasan_stack.patch
ubsan-build-ubsanc-more-conservatively.patch
page-flags-prioritize-kasan-bits-over-last-cpuid.patch
page-flags-prioritize-kasan-bits-over-last-cpuid-fix.patch
mm-sparse-fix-memory-leak-of-sparsemap_buf-in-aliged-memory-fix.patch
