Hi Benjamin, [auto build test ERROR on tip/x86/core] [also build test ERROR on v4.5-rc7 next-20160309] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Benjamin-LaHaise/x86_32-add-support-for-64-bit-__get_user/20160310-012551 config: x86_64-alldefconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): fs/select.c: Assembler messages: >> fs/select.c:710: Error: operand type mismatch for `movq' >> fs/select.c:714: Error: incorrect register `%cx' used with `q' suffix fs/select.c:711: Error: operand type mismatch for `movq' >> fs/select.c:715: Error: incorrect register `%si' used with `q' suffix -- fs/aio.c: Assembler messages: >> fs/aio.c:1606: Error: operand type mismatch for `movq' >> fs/aio.c:1610: Error: incorrect register `%si' used with `q' suffix vim +710 fs/select.c 9f72949f David Woodhouse 2006-01-18 704 size_t sigsetsize = 0; 9f72949f David Woodhouse 2006-01-18 705 sigset_t __user *up = NULL; 9f72949f David Woodhouse 2006-01-18 706 9f72949f David Woodhouse 2006-01-18 707 if (sig) { 9f72949f David Woodhouse 2006-01-18 708 if (!access_ok(VERIFY_READ, sig, sizeof(void *)+sizeof(size_t)) e110ab94 Al Viro 2006-02-01 709 || __get_user(up, (sigset_t __user * __user *)sig) 9f72949f David Woodhouse 2006-01-18 @710 || __get_user(sigsetsize, e110ab94 Al Viro 2006-02-01 711 (size_t __user *)(sig+sizeof(void *)))) 9f72949f David Woodhouse 2006-01-18 712 return -EFAULT; 9f72949f David Woodhouse 2006-01-18 713 } 9f72949f David Woodhouse 2006-01-18 @714 c9da9f21 Heiko Carstens 2009-01-14 @715 return do_pselect(n, inp, outp, exp, tsp, up, sigsetsize); 9f72949f David Woodhouse 2006-01-18 716 } 9f72949f David Woodhouse 2006-01-18 717 5d0e5283 Christoph Hellwig 2010-03-10 718 #ifdef __ARCH_WANT_SYS_OLD_SELECT :::::: The code at line 710 was first introduced by commit :::::: 9f72949f679df06021c9e43886c9191494fdb007 [PATCH] Add pselect/ppoll system call implementation :::::: TO: David Woodhouse :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation