tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.4.y head: de45d3d94fc119f8795ed65a887cacf5e0f3872b commit: b77466d909ac345b43efcbcf60d7516b8ef2f30a [2643/4435] drm/tidss: Add WB config/setup helper config: mips-allyesconfig (attached as .config) compiler: mips-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout b77466d909ac345b43efcbcf60d7516b8ef2f30a # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=mips If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): mips-linux-ld: drivers/gpu/drm/tidss/tidss_dispc.o: in function `dispc_write_irqenable': tidss_dispc.c:(.text.dispc_write_irqenable+0x0): multiple definition of `dispc_write_irqenable'; drivers/video/fbdev/omap2/omapfb/dss/dispc.o:dispc.c:(.text.dispc_write_irqenable+0x0): first defined here mips-linux-ld: drivers/gpu/drm/tidss/tidss_dispc.o: in function `dispc_wb_setup': mips-linux-ld: drivers/gpu/drm/tidss/tidss_dispc.o: in function `dispc_wb_enable': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org