tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y head: e1f7d50ae3a3ec342e87a9b1ce6787bfb8b3c08b commit: 9bee4f9f4460db86c47fe01f9671af6a8951efda [9050/9999] powerpc: Fix duplicate const clang warning in user access code config: powerpc-randconfig-s031-20201016 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-rc1-2-g368fd9ce-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-4.14.y git checkout 9bee4f9f4460db86c47fe01f9671af6a8951efda # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void * @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: got void * drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void * @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: got void * drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void * @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: got void * drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void * @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:447:21: sparse: got void * drivers/media/v4l2-core/v4l2-compat-ioctl32.c:621:21: sparse: got struct v4l2_plane [noderef] <asn:1> ** drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] base @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: got void *[assigned] base drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] base @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: got void *[assigned] base drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] base @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: got void *[assigned] base drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] base @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:693:13: sparse: got void *[assigned] base drivers/media/v4l2-core/v4l2-compat-ioctl32.c:871:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct v4l2_ext_control [noderef] <asn:1> *kcontrols @@ got struct v4l2_ext_control * @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:871:13: sparse: expected struct v4l2_ext_control [noderef] <asn:1> *kcontrols drivers/media/v4l2-core/v4l2-compat-ioctl32.c:871:13: sparse: got struct v4l2_ext_control * drivers/media/v4l2-core/v4l2-compat-ioctl32.c:957:13: sparse: sparse: cast removes address space '<asn:1>' of expression drivers/media/v4l2-core/v4l2-compat-ioctl32.c:957:13: sparse: sparse: cast removes address space '<asn:1>' of expression drivers/media/v4l2-core/v4l2-compat-ioctl32.c:957:13: sparse: sparse: cast removes address space '<asn:1>' of expression drivers/media/v4l2-core/v4l2-compat-ioctl32.c:957:13: sparse: sparse: cast removes address space '<asn:1>' of expression drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] edid @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: got void *[assigned] edid drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] edid @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: got void *[assigned] edid drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] edid @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: got void *[assigned] edid drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1> *uptr @@ got void *[assigned] edid @@ drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: expected void [noderef] <asn:1> *uptr drivers/media/v4l2-core/v4l2-compat-ioctl32.c:973:13: sparse: got void *[assigned] edid vim +621 drivers/media/v4l2-core/v4l2-compat-ioctl32.c cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 582 ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 583 static int put_v4l2_buffer32(struct v4l2_buffer __user *kp, ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 584 struct v4l2_buffer32 __user *up) cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 585 { ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 586 u32 type; ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 587 u32 length; ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 588 enum v4l2_memory memory; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 589 struct v4l2_plane32 __user *uplane32; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 590 struct v4l2_plane __user *uplane; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 591 compat_caddr_t p; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 592 int ret; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 593 16c25072560fb3 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Hans Verkuil 2018-02-14 594 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 595 assign_in_user(&up->index, &kp->index) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 596 get_user(type, &kp->type) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 597 put_user(type, &up->type) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 598 assign_in_user(&up->flags, &kp->flags) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 599 get_user(memory, &kp->memory) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 600 put_user(memory, &up->memory)) cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 601 return -EFAULT; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 602 ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 603 if (assign_in_user(&up->bytesused, &kp->bytesused) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 604 assign_in_user(&up->field, &kp->field) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 605 assign_in_user(&up->timestamp.tv_sec, &kp->timestamp.tv_sec) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 606 assign_in_user(&up->timestamp.tv_usec, &kp->timestamp.tv_usec) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 607 copy_in_user(&up->timecode, &kp->timecode, sizeof(kp->timecode)) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 608 assign_in_user(&up->sequence, &kp->sequence) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 609 assign_in_user(&up->reserved2, &kp->reserved2) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 610 assign_in_user(&up->reserved, &kp->reserved) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 611 get_user(length, &kp->length) || ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 612 put_user(length, &up->length)) 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 613 return -EFAULT; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 614 ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 615 if (V4L2_TYPE_IS_MULTIPLANAR(type)) { ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 616 u32 num_planes = length; ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 617 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 618 if (num_planes == 0) 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 619 return 0; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 620 ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 @621 if (get_user(uplane, ((__force struct v4l2_plane __user **)&kp->m.planes))) ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 622 return -EFAULT; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 623 if (get_user(p, &up->m.planes)) 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 624 return -EFAULT; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 625 uplane32 = compat_ptr(p); 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 626 ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 627 while (num_planes--) { ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 628 ret = put_v4l2_plane32(uplane, uplane32, memory); 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 629 if (ret) 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 630 return ret; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 631 ++uplane; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 632 ++uplane32; 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 633 } 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 634 } else { ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 635 switch (memory) { cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 636 case V4L2_MEMORY_MMAP: 3df1197724661c drivers/media/v4l2-core/v4l2-compat-ioctl32.c Hans Verkuil 2018-02-14 637 case V4L2_MEMORY_OVERLAY: ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 638 if (assign_in_user(&up->m.offset, &kp->m.offset)) a113bc787e9b0e drivers/media/video/compat_ioctl32.c Guy Martin 2006-01-11 639 return -EFAULT; cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 640 break; cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 641 case V4L2_MEMORY_USERPTR: ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 642 if (assign_in_user(&up->m.userptr, &kp->m.userptr)) a113bc787e9b0e drivers/media/video/compat_ioctl32.c Guy Martin 2006-01-11 643 return -EFAULT; cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 644 break; 051c7788bcb92f drivers/media/v4l2-core/v4l2-compat-ioctl32.c Sumit Semwal 2012-06-14 645 case V4L2_MEMORY_DMABUF: ad01b40bb9be09 drivers/media/v4l2-core/v4l2-compat-ioctl32.c Daniel Mentz 2018-02-14 646 if (assign_in_user(&up->m.fd, &kp->m.fd)) 051c7788bcb92f drivers/media/v4l2-core/v4l2-compat-ioctl32.c Sumit Semwal 2012-06-14 647 return -EFAULT; 051c7788bcb92f drivers/media/v4l2-core/v4l2-compat-ioctl32.c Sumit Semwal 2012-06-14 648 break; cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 649 } 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 650 } 52a3082fea41ff drivers/media/video/v4l2-compat-ioctl32.c Pawel Osciak 2010-07-29 651 cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 652 return 0; cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 653 } cf664a6458b254 drivers/media/video/compat_ioctl32.c Philippe De Muyter 2006-01-09 654 :::::: The code at line 621 was first introduced by commit :::::: ad01b40bb9be0987e883655205606c710a8785a5 media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic :::::: TO: Daniel Mentz <danielmentz(a)google.com&gt; :::::: CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org