From: kernel test robot <lkp@intel.com>
To: David Disseldorp <ddiss@suse.de>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Christian Brauner <brauner@kernel.org>
Subject: [linux-next:master 11199/11507] init/initramfs_test.c:580:15: error: call to undeclared function '__override_init_fs'; ISO C99 and later do not support implicit function declarations
Date: Sat, 01 Aug 2026 10:26:10 +0800 [thread overview]
Message-ID: <202608010904.q5YsN4ye-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 415606a7be939835db9b0d6b711887586646346d
commit: da46f0e1053c98355c2d7803ff1cc46617ca81bf [11199/11507] initramfs_test: use test init/exit hooks to override init fs
config: arm64-randconfig-001-20260801 (https://download.01.org/0day-ci/archive/20260801/202608010904.q5YsN4ye-lkp@intel.com/config)
compiler: clang version 21.1.8 (https://github.com/llvm/llvm-project 2078da43e25a4623cab2d0d60decddf709aaea28)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260801/202608010904.q5YsN4ye-lkp@intel.com/reproduce)
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/202608010904.q5YsN4ye-lkp@intel.com/
Note: the linux-next/master HEAD 415606a7be939835db9b0d6b711887586646346d builds fine.
It may have been fixed somewhere.
All errors (new ones prefixed by >>):
>> init/initramfs_test.c:580:15: error: call to undeclared function '__override_init_fs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
580 | test->priv = __override_init_fs();
| ^
>> init/initramfs_test.c:580:13: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
580 | test->priv = __override_init_fs();
| ^ ~~~~~~~~~~~~~~~~~~~~
>> init/initramfs_test.c:586:2: error: call to undeclared function '__revert_init_fs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
586 | __revert_init_fs(test->priv);
| ^
3 errors generated.
vim +/__override_init_fs +580 init/initramfs_test.c
576
577 /* Tests run in a nullfs kthread; always use the init fs for path resolution. */
578 static int __init initramfs_test_init(struct kunit *test)
579 {
> 580 test->priv = __override_init_fs();
581 return 0;
582 }
583
584 static void __init initramfs_test_exit(struct kunit *test)
585 {
> 586 __revert_init_fs(test->priv);
587 }
588
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-08-01 2:26 UTC|newest]
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