Hi Ping-Ke,

I love your patch! Yet something to improve:

[auto build test ERROR on wireless-drivers-next/master]
[also build test ERROR on wireless-drivers/master v5.13-rc6 next-20210618]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Ping-Ke-Shih/rtw89-add-Realtek-802-11ax-driver/20210618-145007
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/f768bef58aeecd255f4cf55d014c36c91e183065
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ping-Ke-Shih/rtw89-add-Realtek-802-11ax-driver/20210618-145007
        git checkout f768bef58aeecd255f4cf55d014c36c91e183065
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: drivers/net/wireless/realtek/rtw89/core.o: in function `rtw89_traffic_stats_calc':

quoted

core.c:(.text+0x534): undefined reference to `__aeabi_uldivmod'
arm-linux-gnueabi-ld: core.c:(.text+0x58c): undefined reference to `__aeabi_uldivmod'

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