[kbuild-all] [peterz-queue:objtool/core 33/37] vmlinux.o: warning: objtool: do_int80_syscall_32()+0x60: return with modified stack frame

tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git objtool/core head: 2c2219e14a94c00327f7dcdfe141a56e27471dd4 commit: 6726f6822d013fe79fe9ceb4c48ce0f514e535f7 [33/37] objtool,x86: Use mergable sections config: x86_64-randconfig-a006-20211012 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?... git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue objtool/core git checkout 6726f6822d013fe79fe9ceb4c48ce0f514e535f7 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 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 warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org