[rcu:willy-maple 132/202] include/linux/kernel.h:694:51: error: 'struct vm_region' has no member named 'vm_rb'

From: kernel test robot
Date: Tue Feb 02 2021 - 17:44:35 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git willy-maple
head: 7e346d2845b4bd77663394f39fa70456e0084c86
commit: 25b065e50d69b0bb569d8b59f904eb9ad8566f31 [132/202] mm: Remove rb tree.
config: riscv-nommu_k210_defconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
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/paulmck/linux-rcu.git/commit/?id=25b065e50d69b0bb569d8b59f904eb9ad8566f31
git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
git fetch --no-tags rcu willy-maple
git checkout 25b065e50d69b0bb569d8b59f904eb9ad8566f31
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv

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

All errors (new ones prefixed by >>):

In file included from <command-line>:
mm/nommu.c: In function 'add_nommu_region':
>> include/linux/kernel.h:694:51: error: 'struct vm_region' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:477:13: note: in expansion of macro 'rb_entry'
477 | pregion = rb_entry(parent, struct vm_region, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_region' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:477:13: note: in expansion of macro 'rb_entry'
477 | pregion = rb_entry(parent, struct vm_region, vm_rb);
| ^~~~~~~~
mm/nommu.c:488:22: error: 'struct vm_region' has no member named 'vm_rb'
488 | rb_link_node(&region->vm_rb, parent, p);
| ^~
mm/nommu.c:489:25: error: 'struct vm_region' has no member named 'vm_rb'
489 | rb_insert_color(&region->vm_rb, &nommu_region_tree);
| ^~
mm/nommu.c: In function 'delete_nommu_region':
mm/nommu.c:502:18: error: 'struct vm_region' has no member named 'vm_rb'
502 | rb_erase(&region->vm_rb, &nommu_region_tree);
| ^~
mm/nommu.c: In function 'add_vma_to_mm':
mm/nommu.c:587:9: error: 'struct mm_struct' has no member named 'mm_rb'
587 | p = &mm->mm_rb.rb_node;
| ^~
In file included from <command-line>:
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:590:10: note: in expansion of macro 'rb_entry'
590 | pvma = rb_entry(parent, struct vm_area_struct, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:590:10: note: in expansion of macro 'rb_entry'
590 | pvma = rb_entry(parent, struct vm_area_struct, vm_rb);
| ^~~~~~~~
mm/nommu.c:613:19: error: 'struct vm_area_struct' has no member named 'vm_rb'
613 | rb_link_node(&vma->vm_rb, parent, p);
| ^~
mm/nommu.c:614:22: error: 'struct vm_area_struct' has no member named 'vm_rb'
614 | rb_insert_color(&vma->vm_rb, &mm->mm_rb);
| ^~
mm/nommu.c:614:34: error: 'struct mm_struct' has no member named 'mm_rb'
614 | rb_insert_color(&vma->vm_rb, &mm->mm_rb);
| ^~
In file included from <command-line>:
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:619:10: note: in expansion of macro 'rb_entry'
619 | prev = rb_entry(rb_prev, struct vm_area_struct, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:619:10: note: in expansion of macro 'rb_entry'
619 | prev = rb_entry(rb_prev, struct vm_area_struct, vm_rb);
| ^~~~~~~~
mm/nommu.c: In function 'delete_vma_from_mm':
mm/nommu.c:655:15: error: 'struct vm_area_struct' has no member named 'vm_rb'
655 | rb_erase(&vma->vm_rb, &mm->mm_rb);
| ^~
mm/nommu.c:655:27: error: 'struct mm_struct' has no member named 'mm_rb'
655 | rb_erase(&vma->vm_rb, &mm->mm_rb);
| ^~
In file included from <command-line>:
mm/nommu.c: In function 'do_mmap':
>> include/linux/kernel.h:694:51: error: 'struct vm_region' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:1141:14: note: in expansion of macro 'rb_entry'
1141 | pregion = rb_entry(rb, struct vm_region, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_region' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
mm/nommu.c:1141:14: note: in expansion of macro 'rb_entry'
1141 | pregion = rb_entry(rb, struct vm_region, vm_rb);
| ^~~~~~~~
mm/nommu.c: At top level:
mm/nommu.c:1658:15: warning: no previous prototype for 'arch_get_unmapped_area' [-Wmissing-prototypes]
1658 | unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,
| ^~~~~~~~~~~~~~~~~~~~~~
--
In file included from <command-line>:
fs/proc/nommu.c: In function 'nommu_region_list_show':
>> include/linux/kernel.h:694:51: error: 'struct vm_region' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/nommu.c:77:30: note: in expansion of macro 'rb_entry'
77 | return nommu_region_show(m, rb_entry(p, struct vm_region, vm_rb));
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_region' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/nommu.c:77:30: note: in expansion of macro 'rb_entry'
77 | return nommu_region_show(m, rb_entry(p, struct vm_region, vm_rb));
| ^~~~~~~~
fs/proc/nommu.c:78:1: error: control reaches end of non-void function [-Werror=return-type]
78 | }
| ^
cc1: some warnings being treated as errors
--
fs/proc/task_nommu.c: In function 'task_mem':
>> fs/proc/task_nommu.c:29:23: error: 'struct mm_struct' has no member named 'mm_rb'
29 | for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
| ^~
In file included from <command-line>:
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:30:9: note: in expansion of macro 'rb_entry'
30 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:30:9: note: in expansion of macro 'rb_entry'
30 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
fs/proc/task_nommu.c: In function 'task_vsize':
fs/proc/task_nommu.c:90:23: error: 'struct mm_struct' has no member named 'mm_rb'
90 | for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
| ^~
In file included from <command-line>:
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:91:9: note: in expansion of macro 'rb_entry'
91 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:91:9: note: in expansion of macro 'rb_entry'
91 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
fs/proc/task_nommu.c: In function 'task_statm':
fs/proc/task_nommu.c:108:23: error: 'struct mm_struct' has no member named 'mm_rb'
108 | for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
| ^~
In file included from <command-line>:
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:109:9: note: in expansion of macro 'rb_entry'
109 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:109:9: note: in expansion of macro 'rb_entry'
109 | vma = rb_entry(p, struct vm_area_struct, vm_rb);
| ^~~~~~~~
fs/proc/task_nommu.c: In function 'show_map':
>> include/linux/kernel.h:694:51: error: 'struct vm_area_struct' has no member named 'vm_rb'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~
include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
300 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
320 | _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:694:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~~~~~~
include/linux/kernel.h:694:20: note: in expansion of macro '__same_type'
694 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
| ^~~~~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:195:27: note: in expansion of macro 'rb_entry'
195 | return nommu_vma_show(m, rb_entry(p, struct vm_area_struct, vm_rb));
| ^~~~~~~~
>> include/linux/compiler_types.h:140:35: error: 'struct vm_area_struct' has no member named 'vm_rb'
140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof'
17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
| ^~~~~~~~~~~~~~~~~~~
include/linux/kernel.h:697:21: note: in expansion of macro 'offsetof'
697 | ((type *)(__mptr - offsetof(type, member))); })
| ^~~~~~~~
include/linux/rbtree.h:38:37: note: in expansion of macro 'container_of'
38 | #define rb_entry(ptr, type, member) container_of(ptr, type, member)
| ^~~~~~~~~~~~
fs/proc/task_nommu.c:195:27: note: in expansion of macro 'rb_entry'
195 | return nommu_vma_show(m, rb_entry(p, struct vm_area_struct, vm_rb));
| ^~~~~~~~
fs/proc/task_nommu.c: In function 'm_start':
fs/proc/task_nommu.c:220:23: error: 'struct mm_struct' has no member named 'mm_rb'
220 | for (p = rb_first(&mm->mm_rb); p; p = rb_next(p))
| ^~
fs/proc/task_nommu.c: In function 'show_map':
fs/proc/task_nommu.c:196:1: error: control reaches end of non-void function [-Werror=return-type]
196 | }
| ^
cc1: some warnings being treated as errors

vim +694 include/linux/kernel.h

cf14f27f82af78 Alexei Starovoitov 2018-03-28 684
^1da177e4c3f41 Linus Torvalds 2005-04-16 685 /**
^1da177e4c3f41 Linus Torvalds 2005-04-16 686 * container_of - cast a member of a structure out to the containing structure
^1da177e4c3f41 Linus Torvalds 2005-04-16 687 * @ptr: the pointer to the member.
^1da177e4c3f41 Linus Torvalds 2005-04-16 688 * @type: the type of the container struct this is embedded in.
^1da177e4c3f41 Linus Torvalds 2005-04-16 689 * @member: the name of the member within the struct.
^1da177e4c3f41 Linus Torvalds 2005-04-16 690 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 691 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 692 #define container_of(ptr, type, member) ({ \
c7acec713d14c6 Ian Abbott 2017-07-12 693 void *__mptr = (void *)(ptr); \
c7acec713d14c6 Ian Abbott 2017-07-12 @694 BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
c7acec713d14c6 Ian Abbott 2017-07-12 695 !__same_type(*(ptr), void), \
c7acec713d14c6 Ian Abbott 2017-07-12 696 "pointer type mismatch in container_of()"); \
c7acec713d14c6 Ian Abbott 2017-07-12 697 ((type *)(__mptr - offsetof(type, member))); })
^1da177e4c3f41 Linus Torvalds 2005-04-16 698

:::::: The code at line 694 was first introduced by commit
:::::: c7acec713d14c6ce8a20154f9dfda258d6bcad3b kernel.h: handle pointers to arrays better in container_of()

:::::: TO: Ian Abbott <abbotti@xxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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