Hi Jordy, Thank you for the patch! Yet something to improve: [auto build test ERROR on device-mapper-dm/for-next] [also build test ERROR on linux/master linus/master v5.17-rc1 next-20220128] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Jordy-Zomer/dm-ioct-prevent-potential-specter-v1-gadget/20220129-223840 base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next config: hexagon-buildonly-randconfig-r001-20220129 (https://download.01.org/0day-ci/archive/20220130/202201300033.eThgyeLo-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4) 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 # https://github.com/0day-ci/linux/commit/494fed5461aa05e0efaf098b57a2a47dc19ba226 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jordy-Zomer/dm-ioct-prevent-potential-specter-v1-gadget/20220129-223840 git checkout 494fed5461aa05e0efaf098b57a2a47dc19ba226 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/md/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/md/dm-ioctl.c:1791:8: error: implicit declaration of function 'array_index_nospec' [-Werror,-Wimplicit-function-declaration] cmd = array_index_nospec(cmd, ARRAY_SIZE(_ioctls)); ^ 1 error generated. vim +/array_index_nospec +1791 drivers/md/dm-ioctl.c 1752 1753 /*----------------------------------------------------------------- 1754 * Implementation of open/close/ioctl on the special char 1755 * device. 1756 *---------------------------------------------------------------*/ 1757 static ioctl_fn lookup_ioctl(unsigned int cmd, int *ioctl_flags) 1758 { 1759 static const struct { 1760 int cmd; 1761 int flags; 1762 ioctl_fn fn; 1763 } _ioctls[] = { 1764 {DM_VERSION_CMD, 0, NULL}, /* version is dealt with elsewhere */ 1765 {DM_REMOVE_ALL_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, remove_all}, 1766 {DM_LIST_DEVICES_CMD, 0, list_devices}, 1767 1768 {DM_DEV_CREATE_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_create}, 1769 {DM_DEV_REMOVE_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_remove}, 1770 {DM_DEV_RENAME_CMD, IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_rename}, 1771 {DM_DEV_SUSPEND_CMD, IOCTL_FLAGS_NO_PARAMS, dev_suspend}, 1772 {DM_DEV_STATUS_CMD, IOCTL_FLAGS_NO_PARAMS, dev_status}, 1773 {DM_DEV_WAIT_CMD, 0, dev_wait}, 1774 1775 {DM_TABLE_LOAD_CMD, 0, table_load}, 1776 {DM_TABLE_CLEAR_CMD, IOCTL_FLAGS_NO_PARAMS, table_clear}, 1777 {DM_TABLE_DEPS_CMD, 0, table_deps}, 1778 {DM_TABLE_STATUS_CMD, 0, table_status}, 1779 1780 {DM_LIST_VERSIONS_CMD, 0, list_versions}, 1781 1782 {DM_TARGET_MSG_CMD, 0, target_message}, 1783 {DM_DEV_SET_GEOMETRY_CMD, 0, dev_set_geometry}, 1784 {DM_DEV_ARM_POLL, IOCTL_FLAGS_NO_PARAMS, dev_arm_poll}, 1785 {DM_GET_TARGET_VERSION, 0, get_target_version}, 1786 }; 1787 1788 if (unlikely(cmd >= ARRAY_SIZE(_ioctls))) 1789 return NULL; 1790 > 1791 cmd = array_index_nospec(cmd, ARRAY_SIZE(_ioctls)); 1792 *ioctl_flags = _ioctls[cmd].flags; 1793 return _ioctls[cmd].fn; 1794 } 1795 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
