Hi Yunfei, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b7cbaf59f62f8ab8f157698f9e31642bff525bd0 commit: c7244811b1c951dca812079d16b17cb241882a80 media: mtk-vcodec: add SCP firmware ops date: 5 weeks ago config: i386-randconfig-a012-20201103 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c7244811b1c951dca812079d16b17cb241882a80 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c7244811b1c951dca812079d16b17cb241882a80 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_scp_ipi_send': >> mtk_vcodec_fw.c:(.text+0x80): undefined reference to `scp_ipi_send' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_scp_set_ipi_register': >> mtk_vcodec_fw.c:(.text+0x90): undefined reference to `scp_ipi_register' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_vpu_scp_dm_addr': >> mtk_vcodec_fw.c:(.text+0x9d): undefined reference to `scp_mapping_dm_addr' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_scp_get_venc_capa': >> mtk_vcodec_fw.c:(.text+0xaa): undefined reference to `scp_get_venc_hw_capa' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_scp_get_vdec_capa': >> mtk_vcodec_fw.c:(.text+0xb7): undefined reference to `scp_get_vdec_hw_capa' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_scp_load_firmware': >> mtk_vcodec_fw.c:(.text+0xc4): undefined reference to `scp_get_rproc' >> ld: mtk_vcodec_fw.c:(.text+0xc9): undefined reference to `rproc_boot' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_fw_select': mtk_vcodec_fw.c:(.text+0x183): undefined reference to `scp_get' ld: drivers/media/platform/mtk-vcodec/mtk_vcodec_fw.o: in function `mtk_vcodec_fw_release': mtk_vcodec_fw.c:(.text+0x217): undefined reference to `scp_put' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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