linux-kernel - arch/microblaze/lib/fastcopy.S:33:2: error: #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB

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Message-ID: <201802111223.iJuuvJak%fengguang.wu@intel.com>
Date:   Sun, 11 Feb 2018 12:17:29 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Michal Simek <monstr@...str.eu>
Subject: arch/microblaze/lib/fastcopy.S:33:2: error: #error Microblaze LE not
 support ASM optimized lib func. Disable OPT_LIB_ASM.

Hi Arnd,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d48fcbd864a008802a90c58a9ceddd9436d11a49
commit: 71e7673dadfdae0605d4c1f66ecb4b045c79fe0f microblaze: fix endian handling
date:   4 weeks ago
config: microblaze-mmu_defconfig (attached as .config)
compiler: microblaze-linux-gcc (GCC) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 71e7673dadfdae0605d4c1f66ecb4b045c79fe0f
        # save the attached .config to linux build tree
        make.cross ARCH=microblaze 

All errors (new ones prefixed by >>):

>> arch/microblaze/lib/fastcopy.S:33:2: error: #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
    #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
     ^~~~~

vim +33 arch/microblaze/lib/fastcopy.S

de93c3c1 Michal Simek 2011-01-28 @33  #error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
de93c3c1 Michal Simek 2011-01-28  34  #endif
de93c3c1 Michal Simek 2011-01-28  35  

:::::: The code at line 33 was first introduced by commit
:::::: de93c3c119382cb888ca8a94b642dbcf8035525e microblaze: Fix ASM optimized code for LE

:::::: TO: Michal Simek <monstr@...str.eu>
:::::: CC: Michal Simek <monstr@...str.eu>

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