[kbuild-all] Re: [linux-stable-rc:queue/5.4 109/220] /tmp/filter-273424.s:50187: Error: bad expression

On Mon, Jul 06, 2020 at 10:01:07AM -0700, 'Nick Desaulniers' via Clang Built Linux wrote: > On Mon, Jul 6, 2020 at 12:20 AM kernel test robot <lkp(a)intel.com&gt; wrote: > > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.4 > > head: bb26a37d5a4bf25b8377c83fa407a219b3822ed1 > > commit: 5cee9e67596f7d694e94d7def7cd9d65a7599f66 [109/220] i2c: core: check returned size of emulated smbus block read > > config: s390-randconfig-r024-20200706 (attached as .config) > > compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project a378c0449507e00e96534ff9ce9034e185425182) > > 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 > > git checkout 5cee9e67596f7d694e94d7def7cd9d65a7599f66 > > # save the attached .config to linux build tree > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 > > > > If you fix the issue, kindly add following tag as appropriate > > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > > > Note: the linux-stable-rc/queue/5.4 HEAD bb26a37d5a4bf25b8377c83fa407a219b3822ed1 builds fine. > > It only hurts bisectibility. Is this note talking about the config in general? Because that config does not build at all... I see this over and over, even on mainline (note that this report is initially against 5.4, which does not build with versions of clang that support asm goto): ./arch/s390/include/asm/bitops.h:69:4: error: invalid operand in inline asm: 'oi $0,${1:b}' "oi %0,%b1\n" ^ ./arch/s390/include/asm/bitops.h:90:4: error: invalid operand in inline asm: 'ni $0,${1:b}' "ni %0,%b1\n" ^ This might be solved with commit c4e5c229b610 ("s390/jump_label: use "i" constraint for clang").