Hi,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/jeffxu-chromium-org/mm-memfd-... base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230630031721.623955-2-jeffxu%40google.com patch subject: [PATCH v1 1/2] mm/memfd: sysctl: fix MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED config: microblaze-randconfig-r003-20230630 (https://download.01.org/0day-ci/archive/20230630/202306301351.kkbSegQW-lkp@i...) compiler: microblaze-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230630/202306301351.kkbSegQW-lkp@i...)
If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202306301351.kkbSegQW-lkp@intel.com/
All errors (new ones prefixed by >>):
mm/memfd.c: In function 'sysctl_memfd_noexec':
mm/memfd.c:273:22: error: 'MEMFD_NOEXEC_SCOPE_EXEC' undeclared (first use in this function)
273 | int sysctl = MEMFD_NOEXEC_SCOPE_EXEC; | ^~~~~~~~~~~~~~~~~~~~~~~ mm/memfd.c:273:22: note: each undeclared identifier is reported only once for each function it appears in mm/memfd.c: In function '__do_sys_memfd_create':
mm/memfd.c:311:31: error: 'MEMFD_NOEXEC_SCOPE_NOEXEC_SEAL' undeclared (first use in this function)
311 | if (sysctl == MEMFD_NOEXEC_SCOPE_NOEXEC_SEAL) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mm/memfd.c:321:43: error: 'MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED' undeclared (first use in this function)
321 | if (flags & MFD_EXEC && sysctl >= MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/MEMFD_NOEXEC_SCOPE_EXEC +273 mm/memfd.c
270 271 static int sysctl_memfd_noexec(void) 272 {
273 int sysctl = MEMFD_NOEXEC_SCOPE_EXEC;
274 #ifdef CONFIG_SYSCTL 275 struct pid_namespace *ns; 276 277 ns = task_active_pid_ns(current); 278 if (ns) 279 sysctl = ns->memfd_noexec_scope; 280 #endif 281 return sysctl; 282 } 283 284 SYSCALL_DEFINE2(memfd_create, 285 const char __user *, uname, 286 unsigned int, flags) 287 { 288 char comm[TASK_COMM_LEN]; 289 unsigned int *file_seals; 290 struct file *file; 291 int fd, error; 292 char *name; 293 long len; 294 int sysctl = sysctl_memfd_noexec(); 295 296 if (!(flags & MFD_HUGETLB)) { 297 if (flags & ~(unsigned int)MFD_ALL_FLAGS) 298 return -EINVAL; 299 } else { 300 /* Allow huge page size encoding in flags. */ 301 if (flags & ~(unsigned int)(MFD_ALL_FLAGS | 302 (MFD_HUGE_MASK << MFD_HUGE_SHIFT))) 303 return -EINVAL; 304 } 305 306 /* Invalid if both EXEC and NOEXEC_SEAL are set.*/ 307 if ((flags & MFD_EXEC) && (flags & MFD_NOEXEC_SEAL)) 308 return -EINVAL; 309 310 if (!(flags & (MFD_EXEC | MFD_NOEXEC_SEAL))) {
311 if (sysctl == MEMFD_NOEXEC_SCOPE_NOEXEC_SEAL)
312 flags |= MFD_NOEXEC_SEAL; 313 else 314 flags |= MFD_EXEC; 315 316 pr_warn_once( 317 "memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=%d '%s'\n", 318 task_pid_nr(current), get_task_comm(comm, current)); 319 } 320
321 if (flags & MFD_EXEC && sysctl >= MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED) {