On Sat, Aug 14, 2021 at 07:11:36AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git io_uring-fops.v6 > head: 4e0c34c9b129fe84c63d3f76053d2e55d944e8a9 > commit: 834d3e42c71acf4653f840ac3998f8601f37021c [58/64] io_uring: add infrastructure around io_uring_cmd_sqe issue type > config: s390-randconfig-r033-20210813 (attached as .config)

> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 62df4df41c939205b2dc0a2a3bfb75b8c1ed74fa) > 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 > # install s390 cross compiling tool for clang build > # apt-get install binutils-s390x-linux-gnu > # https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/com... > git remote add block https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git > git fetch --no-tags block io_uring-fops.v6 > git checkout 834d3e42c71acf4653f840ac3998f8601f37021c > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=s390 SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > All errors (new ones prefixed by >>): > > s390x-linux-gnu-ld: kernel/dma/coherent.o: in function `dma_declare_coherent_memory': > coherent.c:(.text+0xc4): undefined reference to `memunmap' > s390x-linux-gnu-ld: coherent.c:(.text+0x1c4): undefined reference to `memunmap' > s390x-linux-gnu-ld: kernel/dma/coherent.o: in function `dma_init_coherent_memory': > coherent.c:(.text+0x2b4): undefined reference to `memremap' > s390x-linux-gnu-ld: coherent.c:(.text+0x564): undefined reference to `memunmap' > s390x-linux-gnu-ld: fs/io_uring.o: in function `io_uring_init': > >> io_uring.c:(.init.text+0x30): undefined reference to `__compiletime_assert_833' > >> s390x-linux-gnu-ld: io_uring.c:(.init.text+0x4a): undefined reference to `__compiletime_assert_835' > s390x-linux-gnu-ld: drivers/dma/fsl-edma.o: in function `fsl_edma_probe': > fsl-edma.c:(.text+0x1bc): undefined reference to `devm_ioremap_resource' > s390x-linux-gnu-ld: fsl-edma.c:(.text+0x40a): undefined reference to `devm_ioremap_resource' > s390x-linux-gnu-ld: drivers/dma/idma64.o: in function `idma64_platform_probe': > idma64.c:(.text+0xc6): undefined reference to `devm_ioremap_resource' > s390x-linux-gnu-ld: drivers/char/xillybus/xillybus_of.o: in function `xilly_drv_probe': > xillybus_of.c:(.text+0xc4): undefined reference to `devm_platform_ioremap_resource' > s390x-linux-gnu-ld: drivers/pcmcia/cistpl.o: in function `release_cis_mem': > cistpl.c:(.text+0x1d6): undefined reference to `iounmap' > s390x-linux-gnu-ld: drivers/pcmcia/cistpl.o: in function `set_cis_map': > cistpl.c:(.text+0xb10): undefined reference to `ioremap' > s390x-linux-gnu-ld: cistpl.c:(.text+0xbbe): undefined reference to `iounmap' > s390x-linux-gnu-ld: cistpl.c:(.text+0xf4e): undefined reference to `iounmap' > s390x-linux-gnu-ld: cistpl.c:(.text+0xf8c): undefined reference to `ioremap' > s390x-linux-gnu-ld: drivers/clocksource/timer-of.o: in function `timer_of_base_init': > timer-of.c:(.init.text+0x576): undefined reference to `of_iomap' > s390x-linux-gnu-ld: drivers/clocksource/timer-of.o: in function `timer_of_base_exit': > timer-of.c:(.init.text+0x17ba): undefined reference to `iounmap' Grabbing Nick's patch [1] to support the error function attribute turns this into: fs/io_uring.c:10531:2: error: call to '__compiletime_assert_833' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct io_uring_cmd_sqe, user_data) != sqe_offsets[1].user_data BUILD_BUG_SQEC_ELEM(sqe_offsets[1].user_data, __u64, user_data); ^ fs/io_uring.c:10528:2: note: expanded from macro 'BUILD_BUG_SQEC_ELEM' __BUILD_BUG_VERIFY_ELEMENT(struct io_uring_cmd_sqe, eoffset, etype, ename) ^ fs/io_uring.c:10489:2: note: expanded from macro '__BUILD_BUG_VERIFY_ELEMENT' BUILD_BUG_ON(offsetof(stype, ename) != eoffset); \ ^ ./include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) ./include/linux/compiler_types.h:310:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ ./include/linux/compiler_types.h:303:4: note: expanded from macro '__compiletime_assert' prefix ## suffix(); \ ^ <scratch space>:17:1: note: expanded from here __compiletime_assert_833 ^ fs/io_uring.c:10532:2: error: call to '__compiletime_assert_835' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct io_uring_cmd_sqe, personality) != sqe_offsets[1].personality BUILD_BUG_SQEC_ELEM(sqe_offsets[1].personality, __u16, personality); ^ fs/io_uring.c:10528:2: note: expanded from macro 'BUILD_BUG_SQEC_ELEM' __BUILD_BUG_VERIFY_ELEMENT(struct io_uring_cmd_sqe, eoffset, etype, ename) ^ fs/io_uring.c:10489:2: note: expanded from macro '__BUILD_BUG_VERIFY_ELEMENT' BUILD_BUG_ON(offsetof(stype, ename) != eoffset); \ ^ ./include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) ./include/linux/compiler_types.h:310:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ ./include/linux/compiler_types.h:303:4: note: expanded from macro '__compiletime_assert' prefix ## suffix(); \ ^ <scratch space>:25:1: note: expanded from here __compiletime_assert_835 ^ 2 errors generated. Is this a legitimate failure? I do not see this with GCC 11.2.0. [1]: https://reviews.llvm.org/D106030 + https://lore.kernel.org/r/20210802202326.1817503-1-ndesaulniers@google.com/ Cheers, Nathan