linux-kernel - drivers/android/.tmp_gl_binder.o:undefined reference to `__user

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Date:   Mon, 6 Aug 2018 11:41:43 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Martijn Coenen <maco@...gle.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: drivers/android/.tmp_gl_binder.o:undefined reference to `__user_bad'

Hi Martijn,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1ffaddd029c867d134a1dde39f540dcc8c52e274
commit: 1190b4e38f97023154e6b3bef61b251aa5f970d0 ANDROID: binder: remove 32-bit binder interface.
date:   3 months ago
config: microblaze-allmodconfig (attached as .config)
compiler: microblaze-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 1190b4e38f97023154e6b3bef61b251aa5f970d0
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=microblaze 

All errors (new ones prefixed by >>):

   drivers/android/binder.o: In function `binder_thread_write':
>> drivers/android/.tmp_gl_binder.o:(.text+0xcbb0): undefined reference to `__user_bad'
   drivers/android/.tmp_gl_binder.o:(.text+0xcbdc): undefined reference to `__user_bad'
   drivers/android/.tmp_gl_binder.o:(.text+0xcfc4): undefined reference to `__user_bad'
   drivers/android/.tmp_gl_binder.o:(.text+0xd650): undefined reference to `__user_bad'
   drivers/android/.tmp_gl_binder.o:(.text+0xdbc8): undefined reference to `__user_bad'

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