ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ef5f68cc1f829b492b19cd4df5af4454aa816b93
commit: 5750121ae7382ebac8d47ce6d68012d6cd1d7926 kbuild: list sub-directories in ./Kbuild
date:   5 months ago
config: nios2-randconfig-r011-20230310 (https://download.01.org/0day-ci/archive/20230311/202303112110.YfYi4GtV-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5750121ae7382ebac8d47ce6d68012d6cd1d7926
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5750121ae7382ebac8d47ce6d68012d6cd1d7926
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303112110.YfYi4GtV-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: "__mulsi3" [kernel/rcu/rcuscale.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/time/time_test.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/nls/nls_euc-jp.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/fuse/virtiofs.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/autofs/autofs4.ko] undefined!
ERROR: modpost: "__mulsi3" [security/keys/encrypted-keys/encrypted-keys.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lzo/lzo_compress.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4_compress.ko] undefined!
>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4hc_compress.ko] undefined!
WARNING: modpost: suppressed 208 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9a48d604672220545d209e9996c2a1edbb5637f6
commit: 5750121ae7382ebac8d47ce6d68012d6cd1d7926 kbuild: list sub-directories in ./Kbuild
date:   8 months ago
config: nios2-randconfig-r033-20230512 (https://download.01.org/0day-ci/archive/20230513/202305131258.uQTO6pF1-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5750121ae7382ebac8d47ce6d68012d6cd1d7926
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5750121ae7382ebac8d47ce6d68012d6cd1d7926
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305131258.uQTO6pF1-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: "__mulsi3" [kernel/locking/test-ww_mutex.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/ntfs3/ntfs3.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/autofs/autofs4.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/overlayfs/overlay.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/btrfs/btrfs.ko] undefined!
ERROR: modpost: "__mulsi3" [crypto/essiv.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/math/cordic.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4_compress.ko] undefined!
>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lzo/lzo_compress.ko] undefined!
WARNING: modpost: suppressed 412 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6a8f57ae2eb07ab39a6f0ccad60c760743051026
commit: 5750121ae7382ebac8d47ce6d68012d6cd1d7926 kbuild: list sub-directories in ./Kbuild
date:   7 months ago
config: nios2-randconfig-r014-20230417 (https://download.01.org/0day-ci/archive/20230418/202304181254.PNdQfsf9-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5750121ae7382ebac8d47ce6d68012d6cd1d7926
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5750121ae7382ebac8d47ce6d68012d6cd1d7926
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304181254.PNdQfsf9-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: "__mulsi3" [kernel/locking/locktorture.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/rcu/rcuscale.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/time/test_udelay.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/scftorture.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/fuse/virtiofs.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/fscache/fscache.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/autofs/autofs4.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/math/prime_numbers.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4_compress.ko] undefined!
>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!
WARNING: modpost: suppressed 415 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

Hi Masahiro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ec35307e18ba8174e2a3f701956059f6a36f22fb
commit: 5750121ae7382ebac8d47ce6d68012d6cd1d7926 kbuild: list sub-directories in ./Kbuild
date:   5 months ago
config: nios2-randconfig-r033-20230217 (https://download.01.org/0day-ci/archive/20230217/202302172233.c0Ll5p9m-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5750121ae7382ebac8d47ce6d68012d6cd1d7926
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5750121ae7382ebac8d47ce6d68012d6cd1d7926
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302172233.c0Ll5p9m-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: "__mulsi3" [kernel/rcu/rcutorture.ko] undefined!
ERROR: modpost: "__mulsi3" [security/keys/encrypted-keys/encrypted-keys.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/test_lockup.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/bch.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4_compress.ko] undefined!
>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!
ERROR: modpost: "__mulsi3" [lib/lz4/lz4hc_compress.ko] undefined!
ERROR: modpost: "__mulsi3" [drivers/phy/marvell/phy-pxa-28nm-hsic.ko] undefined!
ERROR: modpost: "__mulsi3" [drivers/pinctrl/pinctrl-single.ko] undefined!
ERROR: modpost: "__mulsi3" [drivers/gpio/gpio-aggregator.ko] undefined!
WARNING: modpost: suppressed 324 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

Re: ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[Arnd Bergmann]

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On Mon, Aug 15, 2022 at 4:13 AM kernel test robot <lkp@intel.com> wrote:
>
> Hi Arnd,
>
> First bad commit (maybe != root cause):

(Adding Dinh Nguyen to Cc)

Right, my patch is not the root cause. I see this link failure in lz4
was reported a
couple of times for the combination of nios2 with gcc-11.2:
https://lore.kernel.org/lkml/?q=__divsi3_table

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   568035b01cfb107af8d2e4bd2fb9aea22cf5b868
> commit: 606b102876e3741851dfb09d53f3ee57f650a52c drm: fb_helper: fix CONFIG_FB dependency
> date:   11 months ago
> config: nios2-randconfig-r034-20220814 (https://download.01.org/0day-ci/archive/20220815/202208151050.7pk4KSAG-lkp(a)intel.com/config)
> compiler: nios2-linux-gcc (GCC) 12.1.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=606b102876e3741851dfb09d53f3ee57f650a52c
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 606b102876e3741851dfb09d53f3ee57f650a52c
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
> >> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

I analyzed this a while back but mixed up nios2 with xtensa:
https://lore.kernel.org/lkml/CAK8P3a0wboR0evmNGL_VEsNNdLd9x_v8k3APH70t5gfu9D=A6w(a)mail.gmail.com/

Looking more closely at it now, I see that this was broken by the addition
of the -O3 compiler flag in 4e1a33b105dd ("lib: update LZ4 compressor
module").

We have just removed the option to build the kernel itself with -O3 as
this is known to cause problems. gcc documents a number of options
that are contained in -O3 but not in -O2:

 -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam
 -fpeel-loops -fpredictive-commoning -fsplit-loops -fsplit-paths
 -ftree-loop-distribution -ftree-loop-vectorize -ftree-partial-pre
 -ftree-slp-vectorize -funswitch-loops -fvect-cost-model=dynamic
 -fvect-cost-model=dynamic -fversion-loops-for-strides

If I pass all those options along with -O2, I get the same output
as with -O3, except for the __divsi3_table reference, so we can
probably make it work, but what I don't know is which of the above
options (if any) actually make the object code better.

The upstream lz4 code has the same -O3 flag, so I assume this
was added purely for consistency. Sven Schmidt contributed the
patch that added back -O3, maybe he is interested in doing
some analysis of which of the options we actually want here.

Otherwise I'd suggest we just go with the default kernel flags
that are either -O2 or -Os depending on configuration, as we
do for all other code.

        Arnd

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

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Hi Randy,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   455e73a07f6e288b0061dfcf4fcf54fa9fe06458
commit: 5ba3747dbc9ade2d22a8f5bff3c928cb41d35030 regulator: bd71815: add select to fix build
date:   8 months ago
config: nios2-randconfig-m031-20220113 (https://download.01.org/0day-ci/archive/20220113/202201131441.gBtxgYek-lkp(a)intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5ba3747dbc9ade2d22a8f5bff3c928cb41d35030
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5ba3747dbc9ade2d22a8f5bff3c928cb41d35030
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1665 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   daadb3bd0e8d3e317e36bc2c1542e86c528665e5
commit: 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 drm: Add GUD USB Display driver
date:   10 months ago
config: nios2-randconfig-r031-20220112 (https://download.01.org/0day-ci/archive/20220113/202201130256.3TGIbq70-lkp(a)intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40e1a70b4aedf2859a1829991b48ef0ebe650bf2
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 40e1a70b4aedf2859a1829991b48ef0ebe650bf2
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SERIAL_CORE_CONSOLE
   Depends on TTY && HAS_IOMEM
   Selected by
   - EARLY_PRINTK

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

Re: ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[Max Filippov]

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Hi Arnd,

On Mon, Dec 6, 2021 at 3:02 AM Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Mon, Dec 6, 2021 at 11:30 AM kernel test robot <lkp@intel.com> wrote:
> > First bad commit (maybe != root cause):
> > commit: 570a82b9c36f76a5959b5e47900629b0d413931d media: i2c: select V4L2_ASYNC where needed
>
> Right, that is clearly unrelated.
>
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@intel.com>
> >
> > All errors (new ones prefixed by >>, old ones prefixed by <<):
> >
> > >> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!
>
> lz4 was recently updated, and apparently now does a 32-bit division. I
> assume this
> is the decompressor, as arch/mips had similar problems.
>
> The possible fixes are:
>
> - disable lz4 compressed kernels on xtensa
> - change lz4 to not perform any division
> - change the xtensa decompressor to include the divsi3 helper code from the
>   main kernel, see fbf3bce45821 ("MIPS: boot/compressed/: add __ashldi3 to
>   target for ZSTD compression")

I couldn't reproduce this on xtensa with 5.16-rc6 and I don't think there
is such issue with xtensa because it has config-specific assembly
implementation of __divsi3 that doesn't use __divsi3_table.

Also the report is against nios2.

-- 
Thanks.
-- Max

Re: ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[Arnd Bergmann]

[-- Attachment #1: Type: text/plain, Size: 973 bytes --]

On Mon, Dec 6, 2021 at 11:30 AM kernel test robot <lkp@intel.com> wrote:
> First bad commit (maybe != root cause):
> commit: 570a82b9c36f76a5959b5e47900629b0d413931d media: i2c: select V4L2_ASYNC where needed

Right, that is clearly unrelated.

> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
> >> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

lz4 was recently updated, and apparently now does a 32-bit division. I
assume this
is the decompressor, as arch/mips had similar problems.

The possible fixes are:

- disable lz4 compressed kernels on xtensa
- change lz4 to not perform any division
- change the xtensa decompressor to include the divsi3 helper code from the
  main kernel, see fbf3bce45821 ("MIPS: boot/compressed/: add __ashldi3 to
  target for ZSTD compression")

        Arnd

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1548 bytes --]

Hi Arnd,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0fcfb00b28c0b7884635dacf38e46d60bf3d4eb1
commit: 570a82b9c36f76a5959b5e47900629b0d413931d media: i2c: select V4L2_ASYNC where needed
date:   7 weeks ago
config: nios2-randconfig-r021-20211206 (https://download.01.org/0day-ci/archive/20211206/202112061844.RuSQXzxk-lkp(a)intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=570a82b9c36f76a5959b5e47900629b0d413931d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 570a82b9c36f76a5959b5e47900629b0d413931d
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d5ad8ec3cfb56a017de6a784835666475b4be349
commit: 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 drm: Add GUD USB Display driver
date:   5 months ago
config: nios2-randconfig-r035-20210804 (attached as .config)
compiler: nios2-linux-gcc (GCC) 10.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40e1a70b4aedf2859a1829991b48ef0ebe650bf2
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 40e1a70b4aedf2859a1829991b48ef0ebe650bf2
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=nios2 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__divsi3_table" [lib/lz4/lz4_compress.ko] undefined!

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SERIAL_CORE_CONSOLE
   Depends on TTY && HAS_IOMEM
   Selected by
   - EARLY_PRINTK

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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