[tip:tmp.tmp2 101/364] arch/riscv/kernel/asm-offsets.c:18:2: error: no member named 'thread' in 'task_struct'

Monday, 14 June 2021

Hi Ingo,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.tmp2
head:   adcceb5eb7aee38e4a9c15bdf599655f0e1b1324
commit: 3d4d54f073ba51554acd0fc3999027a4e2ee636a [101/364] sched/headers: Remove
<linux/seqcount.h> from <linux/sched.h>
config: riscv-randconfig-r016-20210613 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
d2012d965d60c3258b3a69d024491698f8aec386)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        #
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=3d...
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip tmp.tmp2
        git checkout 3d4d54f073ba51554acd0fc3999027a4e2ee636a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 

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 >>):

           compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
                                                         ^
   include/linux/compiler_types.h:328:22: note: expanded from macro
'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                               ^~~~~~~~~
   include/linux/compiler_types.h:316:23: note: expanded from macro
'_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
                                ^~~~~~~~~
   include/linux/compiler_types.h:308:9: note: expanded from macro
'__compiletime_assert'
                   if (!(condition))                                       \
                         ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:19: error: implicit declaration of function
'current_thread_info' [-Werror,-Wimplicit-function-declaration]
           return READ_ONCE(current_thread_info()->preempt_count);
                            ^
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                    ^
   include/linux/compiler_types.h:279:13: note: expanded from macro
'__unqual_scalar_typeof'
                   _Generic((x),                                           \
                             ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                    ^
   include/linux/compiler_types.h:286:15: note: expanded from macro
'__unqual_scalar_typeof'
                            default: (x)))
                                      ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                           ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:9: error: returning 'void' from a function
with incompatible result type 'int'
           return READ_ONCE(current_thread_info()->preempt_count);
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:47:28: note: expanded from macro 'READ_ONCE'
   #define READ_ONCE(x)                                                    \
                                                                           ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:16:10: error: implicit declaration of function
'current_thread_info' [-Werror,-Wimplicit-function-declaration]
           return &current_thread_info()->preempt_count;
                   ^
   include/asm-generic/preempt.h:16:33: error: member reference type 'int' is not
a pointer
           return &current_thread_info()->preempt_count;
                   ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/preempt.h:69:36: error: implicit declaration of function
'tif_need_resched' [-Werror,-Wimplicit-function-declaration]
           return !--*preempt_count_ptr() && tif_need_resched();
                                             ^
   include/asm-generic/preempt.h:78:4: error: implicit declaration of function
'tif_need_resched' [-Werror,-Wimplicit-function-declaration]
                           tif_need_resched());
                           ^
...
> arch/riscv/kernel/asm-offsets.c:18:2: error: no member named
'thread' in 'task_struct'            OFFSET(TASK_THREAD_RA,
task_struct, thread.ra);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:19:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_SP, task_struct, thread.sp);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:20:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_S0, task_struct, thread.s[0]);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:21:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_S1, task_struct, thread.s[1]);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   fatal error: too many errors emitted, stopping now [-ferror-limit=]
   20 errors generated.
--
           compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
                                                         ^
   include/linux/compiler_types.h:328:22: note: expanded from macro
'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                               ^~~~~~~~~
   include/linux/compiler_types.h:316:23: note: expanded from macro
'_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
                                ^~~~~~~~~
   include/linux/compiler_types.h:308:9: note: expanded from macro
'__compiletime_assert'
                   if (!(condition))                                       \
                         ^~~~~~~~~
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:19: error: implicit declaration of function
'current_thread_info' [-Werror,-Wimplicit-function-declaration]
           return READ_ONCE(current_thread_info()->preempt_count);
                            ^
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                    ^
   include/linux/compiler_types.h:279:13: note: expanded from macro
'__unqual_scalar_typeof'
                   _Generic((x),                                           \
                             ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                    ^
   include/linux/compiler_types.h:286:15: note: expanded from macro
'__unqual_scalar_typeof'
                            default: (x)))
                                      ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:42: error: member reference type 'int' is not
a pointer
           return READ_ONCE(current_thread_info()->preempt_count);
                            ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
           __READ_ONCE(x);                                                 \
                       ^
   include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
   #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
                                                                           ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:11:9: error: returning 'void' from a function
with incompatible result type 'int'
           return READ_ONCE(current_thread_info()->preempt_count);
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:47:28: note: expanded from macro 'READ_ONCE'
   #define READ_ONCE(x)                                                    \
                                                                           ^
   In file included from arch/riscv/kernel/asm-offsets.c:10:
   In file included from include/linux/sched.h:19:
   In file included from include/linux/mutex.h:19:
   In file included from include/linux/lockdep.h:14:
   In file included from include/linux/smp.h:110:
   In file included from include/linux/preempt.h:80:
   In file included from ./arch/riscv/include/generated/asm/preempt.h:1:
   include/asm-generic/preempt.h:16:10: error: implicit declaration of function
'current_thread_info' [-Werror,-Wimplicit-function-declaration]
           return &current_thread_info()->preempt_count;
                   ^
   include/asm-generic/preempt.h:16:33: error: member reference type 'int' is not
a pointer
           return &current_thread_info()->preempt_count;
                   ~~~~~~~~~~~~~~~~~~~~~  ^
   include/asm-generic/preempt.h:69:36: error: implicit declaration of function
'tif_need_resched' [-Werror,-Wimplicit-function-declaration]
           return !--*preempt_count_ptr() && tif_need_resched();
                                             ^
   include/asm-generic/preempt.h:78:4: error: implicit declaration of function
'tif_need_resched' [-Werror,-Wimplicit-function-declaration]
                           tif_need_resched());
                           ^
...
> arch/riscv/kernel/asm-offsets.c:18:2: error: no member named
'thread' in 'task_struct'            OFFSET(TASK_THREAD_RA,
task_struct, thread.ra);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:19:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_SP, task_struct, thread.sp);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:20:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_S0, task_struct, thread.s[0]);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   arch/riscv/kernel/asm-offsets.c:21:2: error: no member named 'thread' in
'task_struct'
           OFFSET(TASK_THREAD_S1, task_struct, thread.s[1]);
           ^                                   ~~~~~~
   include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
           DEFINE(sym, offsetof(struct str, mem))
                       ^                    ~~~
   include/linux/stddef.h:17:32: note: expanded from macro 'offsetof'
   #define offsetof(TYPE, MEMBER)  __compiler_offsetof(TYPE, MEMBER)
                                   ^                         ~~~~~~
   include/linux/compiler_types.h:140:35: note: expanded from macro
'__compiler_offsetof'
   #define __compiler_offsetof(a, b)       __builtin_offsetof(a, b)
                                           ^                     ~
   include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
           asm volatile("\n.ascii \"->" #sym " %0 " #val
"\"" : : "i" (val))
                                                                       ^~~
   fatal error: too many errors emitted, stopping now [-ferror-limit=]
   20 errors generated.
   make[2]: *** [scripts/Makefile.build:117: arch/riscv/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1232: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:215: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +18 arch/riscv/kernel/asm-offsets.c

3ae9c3cde51abc Souptick Joarder 2020-12-09  15  
7db91e57a0acde Palmer Dabbelt   2017-07-10  16  void asm_offsets(void)
7db91e57a0acde Palmer Dabbelt   2017-07-10  17  {
7db91e57a0acde Palmer Dabbelt   2017-07-10 @18  	OFFSET(TASK_THREAD_RA, task_struct,
thread.ra);

:::::: The code at line 18 was first introduced by commit
:::::: 7db91e57a0acde126a162ababfb1e0ab190130cb RISC-V: Task implementation

:::::: TO: Palmer Dabbelt <palmer(a)dabbelt.com&gt;
:::::: CC: Palmer Dabbelt <palmer(a)dabbelt.com&gt;

---
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