[kbuild-all] Re: [PATCH] Wire up CONFIG_DEVTMPFS_MOUNT to initramfs.

Hi Rob, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.16 next-20220116] [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/Rob-Landley/Wire-up-CONFIG_DEVTM... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git daadb3bd0e8d3e317e36bc2c1542e86c528665e5 config: i386-randconfig-a001-20220117 (https://download.01.org/0day-ci/archive/20220117/202201170603.CXS8HDSz-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c63a3175c2947e8c1a2d3bbe16a8586600705c54) 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/c6b7e8ccdf2b0a9620c9dc0b5e5b2a719... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Rob-Landley/Wire-up-CONFIG_DEVTMPFS_MOUNT-to-initramfs/20220117-023610 git checkout c6b7e8ccdf2b0a9620c9dc0b5e5b2a719b223817 # 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=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): init/main.c:780:20: warning: no previous prototype for function 'mem_encrypt_init' [-Wmissing-prototypes] void __init __weak mem_encrypt_init(void) { } ^ init/main.c:780:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init __weak mem_encrypt_init(void) { } ^ static sys_mkdir("/dev", 0755); ^ init/main.c:1624:3: note: did you mean 'vfs_mkdir'? include/linux/fs.h:1867:5: note: 'vfs_mkdir' declared here int vfs_mkdir(struct user_namespace *, struct inode *, ^ 1 warning and 1 error generated. vim +/sys_mkdir +1624 init/main.c 1579 1580 static noinline void __init kernel_init_freeable(void) 1581 { 1582 /* Now the scheduler is fully set up and can do blocking allocations */ 1583 gfp_allowed_mask = __GFP_BITS_MASK; 1584 1585 /* 1586 * init can allocate pages on any node 1587 */ 1588 set_mems_allowed(node_states[N_MEMORY]); 1589 1590 cad_pid = get_pid(task_pid(current)); 1591 1592 smp_prepare_cpus(setup_max_cpus); 1593 1594 workqueue_init(); 1595 1596 init_mm_internals(); 1597 1598 rcu_init_tasks_generic(); 1599 do_pre_smp_initcalls(); 1600 lockup_detector_init(); 1601 1602 smp_init(); 1603 sched_init_smp(); 1604 1605 padata_init(); 1606 page_alloc_init_late(); 1607 /* Initialize page ext after all struct pages are initialized. */ 1608 page_ext_init(); 1609 1610 do_basic_setup(); 1611 1612 kunit_run_all_tests(); 1613 1614 wait_for_initramfs(); 1615 1616 /* 1617 * check if there is an early userspace init. If yes, let it do all 1618 * the work 1619 */ 1620 if (init_eaccess(ramdisk_execute_command) != 0) { 1621 ramdisk_execute_command = NULL; 1622 prepare_namespace(); 1623 } else if (IS_ENABLED(CONFIG_DEVTMPFS_MOUNT)) { --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org