Hi Masahiro, It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1bdbe227492075d058e37cb3d400e6468d0095b5 commit: 3bd6e94bec122a951d462c239b47954cf5f36e33 arch: restore generic-y += shmparam.h for some architectures date: 5 days ago config: microblaze-allyesconfig (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 3bd6e94bec122a951d462c239b47954cf5f36e33 # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=microblaze All errors (new ones prefixed by >>): `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o drivers/infiniband/core/uverbs_main.o: In function `ib_uverbs_write': >> drivers/infiniband/core/.tmp_gl_uverbs_main.o:(.text+0x139c): undefined >> reference to `__user_bad' drivers/android/binder.o: In function `binder_thread_write': >> drivers/android/.tmp_gl_binder.o:(.text+0xdbb8): undefined reference to >> `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xdbe4): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xe05c): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xe5d8): undefined reference to `__user_bad' drivers/android/binder.o:drivers/android/.tmp_gl_binder.o:(.text+0xebb8): more undefined references to `__user_bad' follow --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
