Hi Casey, kernel test robot noticed the following build warnings: [auto build test WARNING on tip/perf/core] [also build test WARNING on acme/perf/core shuah-kselftest/next shuah-kselftest/fixes linus/master v6.3-rc7] [cannot apply to next-20230421] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230422-024331 base: tip/perf/core patch link: https://lore.kernel.org/r/20230421174259.2458-5-casey%40schaufler-ca.com patch subject: [PATCH v9 04/11] LSM: syscalls for current process attributes config: mips-randconfig-s051-20230421 (https://download.01.org/0day-ci/archive/20230422/202304222142.YHgqLhGF-lkp@xxxxxxxxx/config) compiler: mips64el-linux-gcc (GCC) 12.1.0 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: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/78ea54cc31d7bd9e5a5c7fe8cf34fba9516fde95 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230422-024331 git checkout 78ea54cc31d7bd9e5a5c7fe8cf34fba9516fde95 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304222142.YHgqLhGF-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> security/lsm_syscalls.c:34:48: sparse: sparse: dereference of noderef expression -- security/security.c:406:25: sparse: sparse: cast removes address space '__rcu' of expression >> security/security.c:2196:13: sparse: sparse: dereference of noderef expression security/security.c:2203:14: sparse: sparse: dereference of noderef expression security/security.c:2208:20: sparse: sparse: dereference of noderef expression security/security.c:2218:43: sparse: sparse: dereference of noderef expression security/security.c:2218:66: sparse: sparse: dereference of noderef expression security/security.c:2263:13: sparse: sparse: dereference of noderef expression security/security.c:2265:13: sparse: sparse: dereference of noderef expression security/security.c:2269:13: sparse: sparse: dereference of noderef expression security/security.c:2269:32: sparse: sparse: dereference of noderef expression security/security.c:2275:53: sparse: sparse: dereference of noderef expression security/security.c:2275:64: sparse: sparse: dereference of noderef expression security/security.c:2275:70: sparse: sparse: dereference of noderef expression vim +34 security/lsm_syscalls.c 19 20 /** 21 * sys_lsm_set_self_attr - Set current task's security module attribute 22 * @attr: which attribute to set 23 * @ctx: the LSM contexts 24 * @size: size of @ctx 25 * @flags: reserved for future use 26 * 27 * Sets the calling task's LSM context. On success this function 28 * returns 0. If the attribute specified cannot be set a negative 29 * value indicating the reason for the error is returned. 30 */ 31 SYSCALL_DEFINE4(lsm_set_self_attr, unsigned int, attr, struct lsm_ctx __user *, 32 ctx, size_t __user, size, u32, flags) 33 { > 34 return security_setselfattr(attr, ctx, size, flags); 35 } 36 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
