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arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'

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Hi Alex,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1001354ca34179f3db924eb66672442a173147dc
commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
date:   11 months ago
config: mips-jmr3927_defconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ebb5e78cc63417a35254a791de66e1cc84f963cc
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

>> arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'
    /*
    
--
>> arch/mips/vdso/sigreturn.S:1:0: error: '-march=r3900' requires '-mfp32'
    /*
    

vim +1 arch/mips/vdso/elf.S

   > 1	/*
     2	 * Copyright (C) 2015 Imagination Technologies
     3	 * Author: Alex Smith <alex.smith@imgtec.com>
     4	 *

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32' kbuild test robot <fengguang.wu@intel.com> - 2016-10-16 04:40 +0200

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