Andi,
Please ignore all messages from my tree, sorry for the noise.
On Thu, 2018-01-04 at 18:18 +0800, kbuild test robot wrote:
> tree: aaron/for_lkp_skl_2sp2_test
> head: 6c9381b65892222cbe2214fb22af9043f9ce1065
> commit: 4479c984e6bbbe022595e30082ba671c8db74332 [171/225] kernel
> debug: support resetting WARN_ONCE for all architectures
> config: x86_64-acpi-redef (attached as .config)
> compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
> reproduce:
> git checkout 4479c984e6bbbe022595e30082ba671c8db74332
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All error/warnings (new ones prefixed by >>):
>
> In file included from include/linux/list.h:8:0,
> from lib/bug.c:43:
> lib/bug.c: In function 'generic_bug_clear_once':
> lib/bug.c:212:32: error: 'module_bug_list' undeclared (first use
> in this function); did you mean 'module_sig_ok'?
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^
> include/linux/kernel.h:927:26: note: in definition of macro
> 'container_of'
> void *__mptr = (void *)(ptr); \
> ^~~
> > > include/linux/rculist.h:277:15: note: in expansion of macro
> > > 'lockless_dereference'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
> > > lib/bug.c:212:2: note: in expansion of macro
> > > 'list_for_each_entry_rcu'
>
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^~~~~~~~~~~~~~~~~~~~~~~
> lib/bug.c:212:32: note: each undeclared identifier is reported
> only once for each function it appears in
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^
> include/linux/kernel.h:927:26: note: in definition of macro
> 'container_of'
> void *__mptr = (void *)(ptr); \
> ^~~
> > > include/linux/rculist.h:277:15: note: in expansion of macro
> > > 'lockless_dereference'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
> > > lib/bug.c:212:2: note: in expansion of macro
> > > 'list_for_each_entry_rcu'
>
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^~~~~~~~~~~~~~~~~~~~~~~
> > > include/linux/kernel.h:927:17: warning: cast to pointer from
> > > integer of different size [-Wint-to-pointer-cast]
>
> void *__mptr = (void *)(ptr); \
> ^
> > > include/linux/rculist.h:277:2: note: in expansion of macro
> > > 'container_of'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
> > > lib/bug.c:212:2: note: in expansion of macro
> > > 'list_for_each_entry_rcu'
>
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^~~~~~~~~~~~~~~~~~~~~~~
> In file included from include/uapi/linux/stddef.h:1:0,
> from include/linux/stddef.h:4,
> from include/uapi/linux/posix_types.h:4,
> from include/uapi/linux/types.h:13,
> from include/linux/types.h:5,
> from include/linux/list.h:4,
> from lib/bug.c:43:
> > > include/linux/kernel.h:928:32: error: invalid type argument of
> > > unary '*' (have 'int')
>
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~
> include/linux/compiler.h:553:19: note: in definition of macro
> '__compiletime_assert'
> bool __cond = !(condition); \
> ^~~~~~~~~
> include/linux/compiler.h:576:2: note: in expansion of macro
> '_compiletime_assert'
> _compiletime_assert(condition, msg, __compiletime_assert_,
> __LINE__)
> ^~~~~~~~~~~~~~~~~~~
> include/linux/build_bug.h:46:37: note: in expansion of macro
> 'compiletime_assert'
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond),
> msg)
> ^~~~~~~~~~~~~~~~~~
> include/linux/kernel.h:928:2: note: in expansion of macro
> 'BUILD_BUG_ON_MSG'
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~~~~~~~~~~~
> include/linux/kernel.h:928:20: note: in expansion of macro
> '__same_type'
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~~~~~~
> > > include/linux/rculist.h:277:2: note: in expansion of macro
> > > 'container_of'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
> > > lib/bug.c:212:2: note: in expansion of macro
> > > 'list_for_each_entry_rcu'
>
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^~~~~~~~~~~~~~~~~~~~~~~
> > > include/linux/rculist.h:351:49: error: dereferencing pointer to
> > > incomplete type 'struct module'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> include/linux/compiler.h:553:19: note: in definition of macro
> '__compiletime_assert'
> bool __cond = !(condition); \
> ^~~~~~~~~
> include/linux/compiler.h:576:2: note: in expansion of macro
> '_compiletime_assert'
> _compiletime_assert(condition, msg, __compiletime_assert_,
> __LINE__)
> ^~~~~~~~~~~~~~~~~~~
> include/linux/build_bug.h:46:37: note: in expansion of macro
> 'compiletime_assert'
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond),
> msg)
> ^~~~~~~~~~~~~~~~~~
> include/linux/kernel.h:928:2: note: in expansion of macro
> 'BUILD_BUG_ON_MSG'
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~~~~~~~~~~~
> include/linux/kernel.h:928:20: note: in expansion of macro
> '__same_type'
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~~~~~~
> > > include/linux/rculist.h:277:2: note: in expansion of macro
> > > 'container_of'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
> > > lib/bug.c:212:2: note: in expansion of macro
> > > 'list_for_each_entry_rcu'
>
> list_for_each_entry_rcu(mod, &module_bug_list, bug_list)
> ^~~~~~~~~~~~~~~~~~~~~~~
> include/linux/kernel.h:929:18: error: invalid type argument of
> unary '*' (have 'int')
> !__same_type(*(ptr), void), \
> ^~~~~~
> include/linux/compiler.h:553:19: note: in definition of macro
> '__compiletime_assert'
> bool __cond = !(condition); \
> ^~~~~~~~~
> include/linux/compiler.h:576:2: note: in expansion of macro
> '_compiletime_assert'
> _compiletime_assert(condition, msg, __compiletime_assert_,
> __LINE__)
> ^~~~~~~~~~~~~~~~~~~
> include/linux/build_bug.h:46:37: note: in expansion of macro
> 'compiletime_assert'
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond),
> msg)
> ^~~~~~~~~~~~~~~~~~
> include/linux/kernel.h:928:2: note: in expansion of macro
> 'BUILD_BUG_ON_MSG'
> BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
> ^~~~~~~~~~~~~~~~
> include/linux/kernel.h:929:6: note: in expansion of macro
> '__same_type'
> !__same_type(*(ptr), void), \
> ^~~~~~~~~~~
> > > include/linux/rculist.h:277:2: note: in expansion of macro
> > > 'container_of'
>
> container_of(lockless_dereference(ptr), type, member)
> ^~~~~~~~~~~~
> > > include/linux/rculist.h:351:13: note: in expansion of macro
> > > 'list_entry_rcu'
>
> for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
> ^~~~~~~~~~~~~~
>
> vim +/list_for_each_entry_rcu +212 lib/bug.c
>
> 206
> 207 void generic_bug_clear_once(void)
> 208 {
> 209 struct module *mod;
> 210
> 211 rcu_read_lock_sched();
> > 212 list_for_each_entry_rcu(mod, &module_bug_list,
> bug_list)
>
> ---
> 0-DAY kernel test infrastructure Open Source
> Technology Center
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