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Message-ID: <202110280539.KthGlECA-lkp@intel.com>
Date:   Thu, 28 Oct 2021 05:49:47 +0800
From:   kernel test robot <lkp@...el.com>
To:     Laurent Vivier <laurent@...ier.eu>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: [brauner:fs.binfmt 2/2] fs/binfmt_misc.c:86:49: error: 'struct
 user_namespace' has no member named 'binfmt_misc'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git fs.binfmt
head:   d484ec2850c2cd85d06837319ef57d6cec24305a
commit: d484ec2850c2cd85d06837319ef57d6cec24305a [2/2] binfmt_misc: allow sandboxed mounts
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git/commit/?id=d484ec2850c2cd85d06837319ef57d6cec24305a
        git remote add brauner https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
        git fetch --no-tags brauner fs.binfmt
        git checkout d484ec2850c2cd85d06837319ef57d6cec24305a
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash fs/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   fs/binfmt_misc.c: In function 'binfmt_misc':
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:279:27: note: in definition of macro '__unqual_scalar_typeof'
     279 |                 _Generic((x),                                           \
         |                           ^
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:279:27: note: in definition of macro '__unqual_scalar_typeof'
     279 |                 _Generic((x),                                           \
         |                           ^
   include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE'
      50 |         __READ_ONCE(x);                                                 \
         |         ^~~~~~~~~~~
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
   In file included from ./arch/sparc/include/generated/asm/rwonce.h:1,
                    from include/linux/compiler.h:266,
                    from include/linux/kernel.h:11,
                    from fs/binfmt_misc.c:13:
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/asm-generic/rwonce.h:44:73: note: in definition of macro '__READ_ONCE'
      44 | #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
         |                                                                         ^
   include/asm-generic/barrier.h:171:44: note: in expansion of macro 'READ_ONCE'
     171 |         __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p);               \
         |                                            ^~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
   In file included from <command-line>:
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:172:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     172 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:172:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     172 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:172:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     172 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:172:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     172 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:86:24: note: in expansion of macro 'smp_load_acquire'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                        ^~~~~~~~~~~~~~~~
   In file included from arch/sparc/include/asm/barrier_32.h:5,
                    from arch/sparc/include/asm/barrier.h:7,
                    from arch/sparc/include/asm/atomic_32.h:18,
                    from arch/sparc/include/asm/atomic.h:7,
                    from include/linux/atomic.h:7,
                    from include/asm-generic/bitops/lock.h:5,
                    from arch/sparc/include/asm/bitops_32.h:102,
                    from arch/sparc/include/asm/bitops.h:7,
                    from include/linux/bitops.h:33,
                    from include/linux/kernel.h:12,
                    from fs/binfmt_misc.c:13:
>> fs/binfmt_misc.c:86:49: error: 'struct user_namespace' has no member named 'binfmt_misc'
      86 |                 misc = smp_load_acquire(&user_ns->binfmt_misc);
         |                                                 ^~
   include/asm-generic/barrier.h:174:18: note: in definition of macro 'smp_load_acquire'
     174 |         (typeof(*p))___p1;                                              \
         |                  ^
   In file included from include/linux/module.h:12,
                    from fs/binfmt_misc.c:14:
   fs/binfmt_misc.c: In function 'check_file':
>> fs/binfmt_misc.c:112:31: error: invalid use of undefined type 'struct binfmt_misc'
     112 |         list_for_each(l, &misc->entries) {
         |                               ^~
   include/linux/list.h:571:21: note: in definition of macro 'list_for_each'
     571 |         for (pos = (head)->next; pos != (head); pos = pos->next)
         |                     ^~~~
>> fs/binfmt_misc.c:112:31: error: invalid use of undefined type 'struct binfmt_misc'
     112 |         list_for_each(l, &misc->entries) {
         |                               ^~
   include/linux/list.h:571:42: note: in definition of macro 'list_for_each'
     571 |         for (pos = (head)->next; pos != (head); pos = pos->next)
         |                                          ^~~~
   fs/binfmt_misc.c: In function 'load_misc_binary':
   fs/binfmt_misc.c:170:18: error: invalid use of undefined type 'struct binfmt_misc'
     170 |         if (!misc->enabled)
         |                  ^~
   In file included from include/linux/spinlock.h:326,
                    from include/linux/mm_types.h:9,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from fs/binfmt_misc.c:14:
   fs/binfmt_misc.c:174:24: error: invalid use of undefined type 'struct binfmt_misc'
     174 |         read_lock(&misc->entries_lock);
         |                        ^~
   include/linux/spinlock_api_up.h:28:32: note: in definition of macro '___LOCK'
      28 |   do { __acquire(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:60:49: note: in expansion of macro '__LOCK'
      60 | #define _raw_read_lock(lock)                    __LOCK(lock)
         |                                                 ^~~~~~
   include/linux/rwlock.h:71:33: note: in expansion of macro '_raw_read_lock'
      71 | #define read_lock(lock)         _raw_read_lock(lock)
         |                                 ^~~~~~~~~~~~~~
   fs/binfmt_misc.c:174:9: note: in expansion of macro 'read_lock'
     174 |         read_lock(&misc->entries_lock);
         |         ^~~~~~~~~
   fs/binfmt_misc.c:179:26: error: invalid use of undefined type 'struct binfmt_misc'
     179 |         read_unlock(&misc->entries_lock);
         |                          ^~
   include/linux/spinlock_api_up.h:43:32: note: in definition of macro '___UNLOCK'
      43 |   do { __release(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:76:49: note: in expansion of macro '__UNLOCK'
      76 | #define _raw_read_unlock(lock)                  __UNLOCK(lock)
         |                                                 ^~~~~~~~
   include/linux/rwlock.h:105:41: note: in expansion of macro '_raw_read_unlock'
     105 | #define read_unlock(lock)               _raw_read_unlock(lock)
         |                                         ^~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:179:9: note: in expansion of macro 'read_unlock'
     179 |         read_unlock(&misc->entries_lock);
         |         ^~~~~~~~~~~
   fs/binfmt_misc.c: In function 'bm_evict_inode':
   fs/binfmt_misc.c:610:33: error: invalid use of undefined type 'struct binfmt_misc'
     610 |                 write_lock(&misc->entries_lock);
         |                                 ^~
   include/linux/spinlock_api_up.h:28:32: note: in definition of macro '___LOCK'
      28 |   do { __acquire(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:61:49: note: in expansion of macro '__LOCK'
      61 | #define _raw_write_lock(lock)                   __LOCK(lock)
         |                                                 ^~~~~~
   include/linux/rwlock.h:70:33: note: in expansion of macro '_raw_write_lock'
      70 | #define write_lock(lock)        _raw_write_lock(lock)
         |                                 ^~~~~~~~~~~~~~~
   fs/binfmt_misc.c:610:17: note: in expansion of macro 'write_lock'
     610 |                 write_lock(&misc->entries_lock);
         |                 ^~~~~~~~~~
   fs/binfmt_misc.c:612:35: error: invalid use of undefined type 'struct binfmt_misc'
     612 |                 write_unlock(&misc->entries_lock);
         |                                   ^~
   include/linux/spinlock_api_up.h:43:32: note: in definition of macro '___UNLOCK'
      43 |   do { __release(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:77:49: note: in expansion of macro '__UNLOCK'
      77 | #define _raw_write_unlock(lock)                 __UNLOCK(lock)
         |                                                 ^~~~~~~~
   include/linux/rwlock.h:106:41: note: in expansion of macro '_raw_write_unlock'
     106 | #define write_unlock(lock)              _raw_write_unlock(lock)
         |                                         ^~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:612:17: note: in expansion of macro 'write_unlock'
     612 |                 write_unlock(&misc->entries_lock);
         |                 ^~~~~~~~~~~~
   fs/binfmt_misc.c: In function 'bm_register_write':
   fs/binfmt_misc.c:757:25: error: invalid use of undefined type 'struct binfmt_misc'
     757 |         write_lock(&misc->entries_lock);
         |                         ^~
   include/linux/spinlock_api_up.h:28:32: note: in definition of macro '___LOCK'
      28 |   do { __acquire(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:61:49: note: in expansion of macro '__LOCK'
      61 | #define _raw_write_lock(lock)                   __LOCK(lock)
         |                                                 ^~~~~~
   include/linux/rwlock.h:70:33: note: in expansion of macro '_raw_write_lock'
      70 | #define write_lock(lock)        _raw_write_lock(lock)
         |                                 ^~~~~~~~~~~~~~~
   fs/binfmt_misc.c:757:9: note: in expansion of macro 'write_lock'
     757 |         write_lock(&misc->entries_lock);
         |         ^~~~~~~~~~
   fs/binfmt_misc.c:758:33: error: invalid use of undefined type 'struct binfmt_misc'
     758 |         list_add(&e->list, &misc->entries);
         |                                 ^~
   In file included from include/linux/spinlock.h:326,
                    from include/linux/mm_types.h:9,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from fs/binfmt_misc.c:14:
   fs/binfmt_misc.c:759:27: error: invalid use of undefined type 'struct binfmt_misc'
     759 |         write_unlock(&misc->entries_lock);
         |                           ^~
   include/linux/spinlock_api_up.h:43:32: note: in definition of macro '___UNLOCK'
      43 |   do { __release(lock); (void)(lock); } while (0)
         |                                ^~~~
   include/linux/spinlock_api_up.h:77:49: note: in expansion of macro '__UNLOCK'
      77 | #define _raw_write_unlock(lock)                 __UNLOCK(lock)
         |                                                 ^~~~~~~~
   include/linux/rwlock.h:106:41: note: in expansion of macro '_raw_write_unlock'
     106 | #define write_unlock(lock)              _raw_write_unlock(lock)
         |                                         ^~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:759:9: note: in expansion of macro 'write_unlock'
     759 |         write_unlock(&misc->entries_lock);
         |         ^~~~~~~~~~~~
   fs/binfmt_misc.c: In function 'bm_status_read':
   fs/binfmt_misc.c:793:17: error: invalid use of undefined type 'struct binfmt_misc'
     793 |         s = misc->enabled ? "enabled\n" : "disabled\n";
         |                 ^~
   fs/binfmt_misc.c: In function 'bm_status_write':
   fs/binfmt_misc.c:811:21: error: invalid use of undefined type 'struct binfmt_misc'
     811 |                 misc->enabled = false;
         |                     ^~
   fs/binfmt_misc.c:815:21: error: invalid use of undefined type 'struct binfmt_misc'
     815 |                 misc->enabled = true;
         |                     ^~
   fs/binfmt_misc.c:822:41: error: invalid use of undefined type 'struct binfmt_misc'
     822 |                 while (!list_empty(&misc->entries))
         |                                         ^~
   In file included from fs/binfmt_misc.c:13:
   fs/binfmt_misc.c:824:57: error: invalid use of undefined type 'struct binfmt_misc'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                                         ^~
   include/linux/kernel.h:494:33: note: in definition of macro 'container_of'
     494 |         void *__mptr = (void *)(ptr);                                   \
         |                                 ^~~
   include/linux/list.h:522:9: note: in expansion of macro 'list_entry'
     522 |         list_entry((ptr)->next, type, member)
         |         ^~~~~~~~~~
   fs/binfmt_misc.c:824:35: note: in expansion of macro 'list_first_entry'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                   ^~~~~~~~~~~~~~~~
   In file included from <command-line>:
   fs/binfmt_misc.c:824:57: error: invalid use of undefined type 'struct binfmt_misc'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                                         ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:495:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     495 |         BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) &&   \
         |         ^~~~~~~~~~~~~~~~
   include/linux/kernel.h:495:27: note: in expansion of macro '__same_type'
     495 |         BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) &&   \
         |                           ^~~~~~~~~~~
   include/linux/list.h:511:9: note: in expansion of macro 'container_of'
     511 |         container_of(ptr, type, member)
         |         ^~~~~~~~~~~~
   include/linux/list.h:522:9: note: in expansion of macro 'list_entry'
     522 |         list_entry((ptr)->next, type, member)
         |         ^~~~~~~~~~
   fs/binfmt_misc.c:824:35: note: in expansion of macro 'list_first_entry'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                   ^~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:824:57: error: invalid use of undefined type 'struct binfmt_misc'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                                         ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:495:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     495 |         BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) &&   \
         |         ^~~~~~~~~~~~~~~~
   include/linux/kernel.h:496:27: note: in expansion of macro '__same_type'
     496 |                          !__same_type(*(ptr), void),                    \
         |                           ^~~~~~~~~~~
   include/linux/list.h:511:9: note: in expansion of macro 'container_of'
     511 |         container_of(ptr, type, member)
         |         ^~~~~~~~~~~~
   include/linux/list.h:522:9: note: in expansion of macro 'list_entry'
     522 |         list_entry((ptr)->next, type, member)
         |         ^~~~~~~~~~
   fs/binfmt_misc.c:824:35: note: in expansion of macro 'list_first_entry'
     824 |                                   list_first_entry(&misc->entries, Node, list));
         |                                   ^~~~~~~~~~~~~~~~
   fs/binfmt_misc.c: In function 'bm_fill_super':
   fs/binfmt_misc.c:878:23: error: 'struct user_namespace' has no member named 'binfmt_misc'
     878 |         misc = user_ns->binfmt_misc;
         |                       ^~
>> fs/binfmt_misc.c:880:39: error: invalid application of 'sizeof' to incomplete type 'struct binfmt_misc'
     880 |                 misc = kmalloc(sizeof(struct binfmt_misc), GFP_KERNEL);
         |                                       ^~~~~~
   fs/binfmt_misc.c:884:37: error: invalid use of undefined type 'struct binfmt_misc'
     884 |                 INIT_LIST_HEAD(&misc->entries);
         |                                     ^~
   In file included from include/linux/spinlock.h:317,
                    from include/linux/mm_types.h:9,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from fs/binfmt_misc.c:14:
   fs/binfmt_misc.c:885:34: error: invalid use of undefined type 'struct binfmt_misc'
     885 |                 rwlock_init(&misc->entries_lock);
         |                                  ^~
   include/linux/rwlock.h:28:16: note: in definition of macro 'rwlock_init'
      28 |         do { *(lock) = __RW_LOCK_UNLOCKED(lock); } while (0)
         |                ^~~~
   In file included from <command-line>:
   fs/binfmt_misc.c:888:43: error: 'struct user_namespace' has no member named 'binfmt_misc'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                                           ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:162:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     162 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:17: note: in expansion of macro 'smp_store_release'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                 ^~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:43: error: 'struct user_namespace' has no member named 'binfmt_misc'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                                           ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:162:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     162 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:17: note: in expansion of macro 'smp_store_release'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                 ^~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:43: error: 'struct user_namespace' has no member named 'binfmt_misc'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                                           ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:162:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     162 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:17: note: in expansion of macro 'smp_store_release'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                 ^~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:43: error: 'struct user_namespace' has no member named 'binfmt_misc'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);
         |                                           ^~
   include/linux/compiler_types.h:302:23: note: in definition of macro '__compiletime_assert'
     302 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
     322 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:9: note: in expansion of macro 'compiletime_assert'
     325 |         compiletime_assert(__native_word(t),                            \
         |         ^~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:325:28: note: in expansion of macro '__native_word'
     325 |         compiletime_assert(__native_word(t),                            \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/barrier.h:162:9: note: in expansion of macro 'compiletime_assert_atomic_type'
     162 |         compiletime_assert_atomic_type(*p);                             \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/binfmt_misc.c:888:17: note: in expansion of macro 'smp_store_release'
     888 |                 smp_store_release(&user_ns->binfmt_misc, misc);


vim +86 fs/binfmt_misc.c

    79	
    80	static struct binfmt_misc *binfmt_misc(struct user_namespace *user_ns)
    81	{
    82		while (user_ns) {
    83			struct binfmt_misc *misc;
    84	
    85			/* Pairs with smp_store_release() in bm_fill_super(). */
  > 86			misc = smp_load_acquire(&user_ns->binfmt_misc);
    87			if (misc)
    88				return misc;
    89	
    90			user_ns = user_ns->parent;
    91		}
    92	
    93		/*
    94		 * As the first user namespace is initialized with
    95		 * &init_binfmt_misc we should never come here.
    96		 */
    97		WARN_ON_ONCE(1);
    98		return ERR_PTR(-EINVAL);
    99	}
   100	
   101	/*
   102	 * Check if we support the binfmt
   103	 * if we do, return the node, else NULL
   104	 * locking is done in load_misc_binary
   105	 */
   106	static Node *check_file(struct binfmt_misc *misc, struct linux_binprm *bprm)
   107	{
   108		char *p = strrchr(bprm->interp, '.');
   109		struct list_head *l;
   110	
   111		/* Walk all the registered handlers. */
 > 112		list_for_each(l, &misc->entries) {
   113			Node *e = list_entry(l, Node, list);
   114			char *s;
   115			int j;
   116	
   117			/* Make sure this one is currently enabled. */
   118			if (!test_bit(Enabled, &e->flags))
   119				continue;
   120	
   121			/* Do matching based on extension if applicable. */
   122			if (!test_bit(Magic, &e->flags)) {
   123				if (p && !strcmp(e->magic, p + 1))
   124					return e;
   125				continue;
   126			}
   127	
   128			/* Do matching based on magic & mask. */
   129			s = bprm->buf + e->offset;
   130			if (e->mask) {
   131				for (j = 0; j < e->size; j++)
   132					if ((*s++ ^ e->magic[j]) & e->mask[j])
   133						break;
   134			} else {
   135				for (j = 0; j < e->size; j++)
   136					if ((*s++ ^ e->magic[j]))
   137						break;
   138			}
   139			if (j == e->size)
   140				return e;
   141		}
   142		return NULL;
   143	}
   144	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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