Hi Luc, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20200626] [cannot apply to linux/master linus/master v5.8-rc2 v5.8-rc1 v5.7 v5.8-rc3] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Luc-Van-Oostenryck/sparse-use-static-inline-for-__chk_-user-io-_ptr/20200628-152401 base: 36e3135df4d426612fc77db26a312c2531108603 config: i386-randconfig-s001-20200629 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-3-gfa153962-dirty # save the attached .config to linux build tree make W=1 C= CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression >> arch/x86/kernel/signal.c:337:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned long long [usertype] * @@ >> arch/x86/kernel/signal.c:337:9: sparse: expected void const volatile [noderef] __user *ptr arch/x86/kernel/signal.c:337:9: sparse: got unsigned long long [usertype] * arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:337:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned long long [usertype] * @@ arch/x86/kernel/signal.c:397:9: sparse: expected void const volatile [noderef] __user *ptr arch/x86/kernel/signal.c:397:9: sparse: got unsigned long long [usertype] * arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression arch/x86/kernel/signal.c:397:9: sparse: sparse: cast removes address space '__user' of expression vim +337 arch/x86/kernel/signal.c 75779f05264b99 arch/x86/kernel/signal.c Hiroshi Shimamoto 2009-02-27 302 7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar 2008-03-06 303 static int 235b80226b986d arch/x86/kernel/signal.c Al Viro 2012-11-09 304 __setup_frame(int sig, struct ksignal *ksig, sigset_t *set, 7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar 2008-03-06 305 struct pt_regs *regs) ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 306 { ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 307 struct sigframe __user *frame; 7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar 2008-03-06 308 void __user *restorer; b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 309 void __user *fp = NULL; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 310 b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 311 frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp); ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 312 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 313 if (!user_access_begin(frame, sizeof(*frame))) 3d0aedd9538e6b arch/x86/kernel/signal_32.c Hiroshi Shimamoto 2008-09-12 314 return -EFAULT; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 315 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 316 unsafe_put_user(sig, &frame->sig, Efault); b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 317 unsafe_put_sigcontext(&frame->sc, fp, regs, set, Efault); 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 318 unsafe_put_user(set->sig[1], &frame->extramask[0], Efault); 1a3e4ca41c5a38 arch/x86/kernel/signal_32.c Roland McGrath 2008-04-09 319 if (current->mm->context.vdso) 6f121e548f8367 arch/x86/kernel/signal.c Andy Lutomirski 2014-05-05 320 restorer = current->mm->context.vdso + 0a6d1fa0d2b48f arch/x86/kernel/signal.c Andy Lutomirski 2015-10-05 321 vdso_image_32.sym___kernel_sigreturn; 9fbbd4dd17d071 arch/i386/kernel/signal.c Andi Kleen 2007-02-13 322 else ade1af77129dea arch/x86/kernel/signal_32.c Jan Engelhardt 2008-01-30 323 restorer = &frame->retcode; 235b80226b986d arch/x86/kernel/signal.c Al Viro 2012-11-09 324 if (ksig->ka.sa.sa_flags & SA_RESTORER) 235b80226b986d arch/x86/kernel/signal.c Al Viro 2012-11-09 325 restorer = ksig->ka.sa.sa_restorer; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 326 ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 327 /* Set up to return from userspace. */ 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 328 unsafe_put_user(restorer, &frame->pretcode, Efault); ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 329 ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 330 /* 7e907f48980d66 arch/x86/kernel/signal_32.c Ingo Molnar 2008-03-06 331 * This is popl %eax ; movl $__NR_sigreturn, %eax ; int $0x80 ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 332 * ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 333 * WE DO NOT USE IT ANY MORE! It's only left here for historical ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 334 * reasons and because gdb uses it as a signature to notice ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 335 * signal handler stack frames. ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 336 */ 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 @337 unsafe_put_user(*((u64 *)&retcode), (u64 *)frame->retcode, Efault); 5c1f178094631e arch/x86/kernel/signal.c Al Viro 2020-02-15 338 user_access_end(); ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 339 ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 340 /* Set up registers for signal handler */ 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 341 regs->sp = (unsigned long)frame; 235b80226b986d arch/x86/kernel/signal.c Al Viro 2012-11-09 342 regs->ip = (unsigned long)ksig->ka.sa.sa_handler; 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 343 regs->ax = (unsigned long)sig; 92bc2056855b32 arch/x86/kernel/signal_32.c Harvey Harrison 2008-02-08 344 regs->dx = 0; 92bc2056855b32 arch/x86/kernel/signal_32.c Harvey Harrison 2008-02-08 345 regs->cx = 0; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 346 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 347 regs->ds = __USER_DS; 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 348 regs->es = __USER_DS; 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 349 regs->ss = __USER_DS; 65ea5b03499035 arch/x86/kernel/signal_32.c H. Peter Anvin 2008-01-30 350 regs->cs = __USER_CS; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 351 283828f3c19ceb arch/i386/kernel/signal.c David Howells 2006-01-18 352 return 0; b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 353 b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 354 Efault: b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 355 user_access_end(); b00d8f8f0b2b39 arch/x86/kernel/signal.c Al Viro 2020-02-15 356 return -EFAULT; ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 357 } ^1da177e4c3f41 arch/i386/kernel/signal.c Linus Torvalds 2005-04-16 358 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
