On Sun, Aug 04, 2019 at 09:50:50PM -0700, Randy Dunlap wrote: > On 4/2/19 7:38 PM, Randy Dunlap wrote: > > On 2/28/19 1:03 AM, kbuild test robot wrote: > >> Hi Jason, > >> > >> FYI, the error/warning still remains. > >> > >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > >> master > >> head: 7d762d69145a54d169f58e56d6dac57a5508debc > >> commit: 3a6532c9af1a7836da2d597f1aaca73cb16c3b97 RDMA/uverbs: Use > >> uverbs_attr_bundle to pass udata for write > >> date: 3 months ago > >> config: microblaze-allyesconfig (attached as .config) > >> compiler: microblaze-linux-gcc (GCC) 8.2.0 > >> reproduce: > >> wget > >> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross > >> -O ~/bin/make.cross > >> chmod +x ~/bin/make.cross > >> git checkout 3a6532c9af1a7836da2d597f1aaca73cb16c3b97 > >> # save the attached .config to linux build tree > >> GCC_VERSION=8.2.0 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+0x13a4): undefined > >>>> reference to `__user_bad' > >> drivers/android/binder.o: In function `binder_thread_write': > >> drivers/android/.tmp_gl_binder.o:(.text+0xda6c): undefined reference to > >> `__user_bad' > >> drivers/android/.tmp_gl_binder.o:(.text+0xda98): undefined reference to > >> `__user_bad' > >> drivers/android/.tmp_gl_binder.o:(.text+0xdf10): undefined reference to > >> `__user_bad' > >> drivers/android/.tmp_gl_binder.o:(.text+0xe498): undefined reference to > >> `__user_bad' > >> > >> drivers/android/binder.o:drivers/android/.tmp_gl_binder.o:(.text+0xea78): > >> 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 > > > > Hi Michal, > > > > Would you comment on this, please? > > [crickets] > > > Jason has said more than once that these build errors are because > > arch/microblaze does not support get_user() of size 8 (bytes), > > although it does support a put_user() of size 8. > > > > > > See a previous report & comment at > > https://lore.kernel.org/lkml/20190101200742.ga5...@mellanox.com/ > > > > > > thanks. > > I currently don't have a cross-build environment set up, so I haven't > built this yet, but a patch like this might fix this nagging issue. > > (It's clearly not high priority since arch/microblaze/ mostly seems to be > not well-maintained.)
It seems reasonable, drivers/infiniband/* never worked and will work on that architecture. Thanks
