kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof

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* kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof
@ 2024-04-03  7:38 Naresh Kamboju
  2024-04-03 13:26 ` Vincent Guittot
  0 siblings, 1 reply; 4+ messages in thread
From: Naresh Kamboju @ 2024-04-03  7:38 UTC (permalink / raw)
  To: open list, Linux Regressions, lkft-triage, clang-built-linux, Linux PM
  Cc: Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot,
	Nathan Chancellor, Nick Desaulniers

The riscv clang-17 defconfig build failed due to following warnings / errors
on the Linux next-20240402.

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

riscv:
  build:
    * clang-17-lkftconfig - Failed
    * rv32-clang-17-defconfig - Failed
    * clang-17-tinyconfig - Failed
    * rv32-clang-17-tinyconfig - Failed
    * clang-17-defconfig - Failed
    * clang-17-allnoconfig - Failed
    * rv32-clang-17-allnoconfig - Failed

Build log:
-------
kernel/sched/core.c:961:15: error: incompatible pointer to integer
conversion passing 'typeof (*((__ai_ptr)))' (aka 'struct wake_q_node
*') to parameter of type 'uintptr_t' (aka 'unsigned long')
[-Wint-conversion]
  961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Steps to reproduce:
---------
# tuxmake --runtime podman --target-arch riscv --toolchain clang-17
--kconfig defconfig LLVM=1 LLVM_IAS=1

Links:
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240402/testrun/23264917/suite/build/test/clang-17-defconfig/details/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240402/testrun/23264917/suite/build/test/clang-17-defconfig/log

--
Linaro LKFT
https://lkft.linaro.org

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof
  2024-04-03  7:38 kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof Naresh Kamboju
@ 2024-04-03 13:26 ` Vincent Guittot
  2024-04-03 16:00   ` Nathan Chancellor
  0 siblings, 1 reply; 4+ messages in thread
From: Vincent Guittot @ 2024-04-03 13:26 UTC (permalink / raw)
  To: Naresh Kamboju
  Cc: open list, Linux Regressions, lkft-triage, clang-built-linux,
	Linux PM, Ingo Molnar, Peter Zijlstra, Juri Lelli,
	Nathan Chancellor, Nick Desaulniers, linux-riscv, Paul Walmsley,
	Palmer Dabbelt, Albert Ou

Hi Naresh,

Adding riscv people

On Wed, 3 Apr 2024 at 09:38, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>
> The riscv clang-17 defconfig build failed due to following warnings / errors
> on the Linux next-20240402.

Could you confirm that there is no problem with other arch and/or
other toolchain ?

>
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>
> riscv:
>   build:
>     * clang-17-lkftconfig - Failed
>     * rv32-clang-17-defconfig - Failed
>     * clang-17-tinyconfig - Failed
>     * rv32-clang-17-tinyconfig - Failed
>     * clang-17-defconfig - Failed
>     * clang-17-allnoconfig - Failed
>     * rv32-clang-17-allnoconfig - Failed
>
> Build log:
> -------
> kernel/sched/core.c:961:15: error: incompatible pointer to integer
> conversion passing 'typeof (*((__ai_ptr)))' (aka 'struct wake_q_node
> *') to parameter of type 'uintptr_t' (aka 'unsigned long')
> [-Wint-conversion]
>   961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

There is no recent change on this code. Could it be a change in
cmpxchg_relaxed ?

>
> Steps to reproduce:
> ---------
> # tuxmake --runtime podman --target-arch riscv --toolchain clang-17
> --kconfig defconfig LLVM=1 LLVM_IAS=1
>
> Links:
>  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240402/testrun/23264917/suite/build/test/clang-17-defconfig/details/
>  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240402/testrun/23264917/suite/build/test/clang-17-defconfig/log
>
> --
> Linaro LKFT
> https://lkft.linaro.org

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof
  2024-04-03 13:26 ` Vincent Guittot
@ 2024-04-03 16:00   ` Nathan Chancellor
  2024-04-03 19:56     ` Paul E. McKenney
  0 siblings, 1 reply; 4+ messages in thread
From: Nathan Chancellor @ 2024-04-03 16:00 UTC (permalink / raw)
  To: Vincent Guittot
  Cc: Naresh Kamboju, open list, Linux Regressions, lkft-triage,
	clang-built-linux, Linux PM, Ingo Molnar, Peter Zijlstra,
	Juri Lelli, Nick Desaulniers, linux-riscv, Paul Walmsley,
	Palmer Dabbelt, Albert Ou, Paul E. McKenney

Hi all,

+ Paul McKenney

On Wed, Apr 03, 2024 at 03:26:05PM +0200, Vincent Guittot wrote:
> Hi Naresh,
> 
> Adding riscv people
> 
> On Wed, 3 Apr 2024 at 09:38, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> >
> > The riscv clang-17 defconfig build failed due to following warnings / errors
> > on the Linux next-20240402.
> 
> Could you confirm that there is no problem with other arch and/or
> other toolchain ?

This is not a clang specific issue, it happens with GCC too:

  $ make -skj"$(nproc)" ARCH=riscv CROSS_COMPILE=riscv64-linux- mrproper defconfig kernel/sched/core.o
  kernel/sched/core.c: In function '__wake_q_add':
  arch/riscv/include/asm/cmpxchg.h:175:62: warning: passing argument 2 of 'cmpxchg_emu_u8' makes integer from pointer without a cast [-Wint-conversion]
    175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
        |                                                              ^~~~~
        |                                                              |
        |                                                              struct wake_q_node *
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  In file included from arch/riscv/include/asm/cmpxchg.h:12,
                   from arch/riscv/include/asm/atomic.h:19,
                   from include/linux/atomic.h:7,
                   from include/linux/cpumask.h:14,
                   from include/linux/smp.h:13,
                   from include/linux/lockdep.h:14,
                   from include/linux/spinlock.h:63,
                   from include/linux/wait.h:9,
                   from include/linux/wait_bit.h:8,
                   from include/linux/fs.h:6:
  include/linux/cmpxchg-emu.h:13:52: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
     13 | uintptr_t cmpxchg_emu_u8(volatile u8 *p, uintptr_t old, uintptr_t new);
        |                                          ~~~~~~~~~~^~~
  arch/riscv/include/asm/cmpxchg.h:175:69: warning: passing argument 3 of 'cmpxchg_emu_u8' makes integer from pointer without a cast [-Wint-conversion]
    175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
        |                                                                     ^~~~~
        |                                                                     |
        |                                                                     struct wake_q_node *
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  include/linux/cmpxchg-emu.h:13:67: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
     13 | uintptr_t cmpxchg_emu_u8(volatile u8 *p, uintptr_t old, uintptr_t new);
        |                                                         ~~~~~~~~~~^~~
  arch/riscv/include/asm/cmpxchg.h:175:23: warning: assignment to 'struct wake_q_node *' from 'uintptr_t' {aka 'long unsigned int'} makes pointer from integer without a cast [-Wint-conversion]
    175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
        |                       ^
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:179:64: warning: passing argument 2 of 'cmpxchg_emu_u16' makes integer from pointer without a cast [-Wint-conversion]
    179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                                                                ^~~~~
        |                                                                |
        |                                                                struct wake_q_node *
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  include/linux/cmpxchg-emu.h:14:54: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
     14 | uintptr_t cmpxchg_emu_u16(volatile u16 *p, uintptr_t old, uintptr_t new);
        |                                            ~~~~~~~~~~^~~
  arch/riscv/include/asm/cmpxchg.h:179:71: warning: passing argument 3 of 'cmpxchg_emu_u16' makes integer from pointer without a cast [-Wint-conversion]
    179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                                                                       ^~~~~
        |                                                                       |
        |                                                                       struct wake_q_node *
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  include/linux/cmpxchg-emu.h:14:69: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
     14 | uintptr_t cmpxchg_emu_u16(volatile u16 *p, uintptr_t old, uintptr_t new);
        |                                                           ~~~~~~~~~~^~~
  arch/riscv/include/asm/cmpxchg.h:179:23: warning: assignment to 'struct wake_q_node *' from 'uintptr_t' {aka 'long unsigned int'} makes pointer from integer without a cast [-Wint-conversion]
    179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                       ^
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:179:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:180:9: note: here
    180 |         case 4:                                                         \
        |         ^~~~
  include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
     77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
        |                                             ^
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
   4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
    961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
        |                      ^~~~~~~~~~~~~~~
  kernel/sched/sched.h: In function 'mm_cid_put_lazy':
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/sched.h:3292:14: note: in expansion of macro 'try_cmpxchg'
   3292 |             !try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/sched.h:3292:14: note: in expansion of macro 'try_cmpxchg'
   3292 |             !try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
        |              ^~~~~~~~~~~
  kernel/sched/sched.h: In function 'mm_cid_get':
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/sched.h:3429:21: note: in expansion of macro 'try_cmpxchg'
   3429 |                 if (try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
        |                     ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/sched.h:3429:21: note: in expansion of macro 'try_cmpxchg'
   3429 |                 if (try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
        |                     ^~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h: In function 'raw_atomic_cmpxchg_relaxed':
  arch/riscv/include/asm/cmpxchg.h:179:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:2108:16: note: in expansion of macro 'raw_cmpxchg_relaxed'
   2108 |         return raw_cmpxchg_relaxed(&v->counter, old, new);
        |                ^~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:180:9: note: here
    180 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
    212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
        |                              ^~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
     89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
        |                             ^~~~~~~~~~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:2108:16: note: in expansion of macro 'raw_cmpxchg_relaxed'
   2108 |         return raw_cmpxchg_relaxed(&v->counter, old, new);
        |                ^~~~~~~~~~~~~~~~~~~
  kernel/sched/core.c: In function '__sched_mm_cid_migrate_from_try_steal_cid':
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11724:14: note: in expansion of macro 'try_cmpxchg'
  11724 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &src_cid, lazy_cid))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11724:14: note: in expansion of macro 'try_cmpxchg'
  11724 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &src_cid, lazy_cid))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11760:14: note: in expansion of macro 'try_cmpxchg'
  11760 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11760:14: note: in expansion of macro 'try_cmpxchg'
  11760 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
        |              ^~~~~~~~~~~
  kernel/sched/core.c: In function 'task_mm_cid_work':
  arch/riscv/include/asm/cmpxchg.h:333:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
   4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~
  kernel/sched/core.c:11945:23: note: in expansion of macro 'cmpxchg'
  11945 |                 res = cmpxchg(&mm->mm_cid_next_scan, old_scan, next_scan);
        |                       ^~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
   4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~
  kernel/sched/core.c:11945:23: note: in expansion of macro 'cmpxchg'
  11945 |                 res = cmpxchg(&mm->mm_cid_next_scan, old_scan, next_scan);
        |                       ^~~~~~~
  arch/riscv/include/asm/cmpxchg.h:333:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11953:14: note: in expansion of macro 'try_cmpxchg'
  11953 |         if (!try_cmpxchg(&mm->mm_cid_next_scan, &old_scan, next_scan))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11953:14: note: in expansion of macro 'try_cmpxchg'
  11953 |         if (!try_cmpxchg(&mm->mm_cid_next_scan, &old_scan, next_scan))
        |              ^~~~~~~~~~~
  kernel/sched/core.c: In function 'sched_mm_cid_remote_clear':
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11841:14: note: in expansion of macro 'try_cmpxchg'
  11841 |         if (!try_cmpxchg(&pcpu_cid->cid, &cid, lazy_cid))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11841:14: note: in expansion of macro 'try_cmpxchg'
  11841 |         if (!try_cmpxchg(&pcpu_cid->cid, &cid, lazy_cid))
        |              ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11874:21: note: in expansion of macro 'try_cmpxchg'
  11874 |                 if (try_cmpxchg(&pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
        |                     ^~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
    192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
        |                ^~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
   4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
        |         ^~~~~~~~~~~~~~~
  kernel/sched/core.c:11874:21: note: in expansion of macro 'try_cmpxchg'
  11874 |                 if (try_cmpxchg(&pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
        |                     ^~~~~~~~~~~
  kernel/sched/sched.h: In function 'mm_cid_pcpu_unset':
  arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
        |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
   4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~
  kernel/sched/sched.h:3310:23: note: in expansion of macro 'cmpxchg'
   3310 |                 res = cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, cid, MM_CID_UNSET);
        |                       ^~~~~~~
  arch/riscv/include/asm/cmpxchg.h:334:9: note: here
    334 |         case 4:                                                         \
        |         ^~~~
  arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
    368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
        |                              ^~~~~~~~~
  include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
     55 | #define raw_cmpxchg arch_cmpxchg
        |                     ^~~~~~~~~~~~
  include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
   4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
        |         ^~~~~~~~~~~
  kernel/sched/sched.h:3310:23: note: in expansion of macro 'cmpxchg'
   3310 |                 res = cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, cid, MM_CID_UNSET);
        |                       ^~~~~~~

> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> >
> > riscv:
> >   build:
> >     * clang-17-lkftconfig - Failed
> >     * rv32-clang-17-defconfig - Failed
> >     * clang-17-tinyconfig - Failed
> >     * rv32-clang-17-tinyconfig - Failed
> >     * clang-17-defconfig - Failed
> >     * clang-17-allnoconfig - Failed
> >     * rv32-clang-17-allnoconfig - Failed
> >
> > Build log:
> > -------
> > kernel/sched/core.c:961:15: error: incompatible pointer to integer
> > conversion passing 'typeof (*((__ai_ptr)))' (aka 'struct wake_q_node
> > *') to parameter of type 'uintptr_t' (aka 'unsigned long')
> > [-Wint-conversion]
> >   961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
> >       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> There is no recent change on this code. Could it be a change in
> cmpxchg_relaxed ?

Yes, it is caused by commit df35ee400e06 ("riscv: Emulate one-byte and
two-byte cmpxchg") in -next. There is another thread on this problem
with a suggested diff that resolves it for me (there are other issues
with that change as well such as break not being in the correct
location):

https://lore.kernel.org/Zgz98szFLLjTIZSO@yujie-X299/

Cheers,
Nathan

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof
  2024-04-03 16:00   ` Nathan Chancellor
@ 2024-04-03 19:56     ` Paul E. McKenney
  0 siblings, 0 replies; 4+ messages in thread
From: Paul E. McKenney @ 2024-04-03 19:56 UTC (permalink / raw)
  To: Nathan Chancellor
  Cc: Vincent Guittot, Naresh Kamboju, open list, Linux Regressions,
	lkft-triage, clang-built-linux, Linux PM, Ingo Molnar,
	Peter Zijlstra, Juri Lelli, Nick Desaulniers, linux-riscv,
	Paul Walmsley, Palmer Dabbelt, Albert Ou

On Wed, Apr 03, 2024 at 09:00:41AM -0700, Nathan Chancellor wrote:
> Hi all,
> 
> + Paul McKenney
> 
> On Wed, Apr 03, 2024 at 03:26:05PM +0200, Vincent Guittot wrote:
> > Hi Naresh,
> > 
> > Adding riscv people
> > 
> > On Wed, 3 Apr 2024 at 09:38, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> > >
> > > The riscv clang-17 defconfig build failed due to following warnings / errors
> > > on the Linux next-20240402.
> > 
> > Could you confirm that there is no problem with other arch and/or
> > other toolchain ?
> 
> This is not a clang specific issue, it happens with GCC too:

Some of these are fixed, but there are a few remaining failures.

I have pulled this series from -next, and apologies for putting it in
too soon.

							Thanx, Paul

>   $ make -skj"$(nproc)" ARCH=riscv CROSS_COMPILE=riscv64-linux- mrproper defconfig kernel/sched/core.o
>   kernel/sched/core.c: In function '__wake_q_add':
>   arch/riscv/include/asm/cmpxchg.h:175:62: warning: passing argument 2 of 'cmpxchg_emu_u8' makes integer from pointer without a cast [-Wint-conversion]
>     175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
>         |                                                              ^~~~~
>         |                                                              |
>         |                                                              struct wake_q_node *
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   In file included from arch/riscv/include/asm/cmpxchg.h:12,
>                    from arch/riscv/include/asm/atomic.h:19,
>                    from include/linux/atomic.h:7,
>                    from include/linux/cpumask.h:14,
>                    from include/linux/smp.h:13,
>                    from include/linux/lockdep.h:14,
>                    from include/linux/spinlock.h:63,
>                    from include/linux/wait.h:9,
>                    from include/linux/wait_bit.h:8,
>                    from include/linux/fs.h:6:
>   include/linux/cmpxchg-emu.h:13:52: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
>      13 | uintptr_t cmpxchg_emu_u8(volatile u8 *p, uintptr_t old, uintptr_t new);
>         |                                          ~~~~~~~~~~^~~
>   arch/riscv/include/asm/cmpxchg.h:175:69: warning: passing argument 3 of 'cmpxchg_emu_u8' makes integer from pointer without a cast [-Wint-conversion]
>     175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
>         |                                                                     ^~~~~
>         |                                                                     |
>         |                                                                     struct wake_q_node *
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   include/linux/cmpxchg-emu.h:13:67: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
>      13 | uintptr_t cmpxchg_emu_u8(volatile u8 *p, uintptr_t old, uintptr_t new);
>         |                                                         ~~~~~~~~~~^~~
>   arch/riscv/include/asm/cmpxchg.h:175:23: warning: assignment to 'struct wake_q_node *' from 'uintptr_t' {aka 'long unsigned int'} makes pointer from integer without a cast [-Wint-conversion]
>     175 |                 __ret = cmpxchg_emu_u8((volatile u8 *)__ptr, __old, __new); \
>         |                       ^
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:179:64: warning: passing argument 2 of 'cmpxchg_emu_u16' makes integer from pointer without a cast [-Wint-conversion]
>     179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                                                                ^~~~~
>         |                                                                |
>         |                                                                struct wake_q_node *
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   include/linux/cmpxchg-emu.h:14:54: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
>      14 | uintptr_t cmpxchg_emu_u16(volatile u16 *p, uintptr_t old, uintptr_t new);
>         |                                            ~~~~~~~~~~^~~
>   arch/riscv/include/asm/cmpxchg.h:179:71: warning: passing argument 3 of 'cmpxchg_emu_u16' makes integer from pointer without a cast [-Wint-conversion]
>     179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                                                                       ^~~~~
>         |                                                                       |
>         |                                                                       struct wake_q_node *
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   include/linux/cmpxchg-emu.h:14:69: note: expected 'uintptr_t' {aka 'long unsigned int'} but argument is of type 'struct wake_q_node *'
>      14 | uintptr_t cmpxchg_emu_u16(volatile u16 *p, uintptr_t old, uintptr_t new);
>         |                                                           ~~~~~~~~~~^~~
>   arch/riscv/include/asm/cmpxchg.h:179:23: warning: assignment to 'struct wake_q_node *' from 'uintptr_t' {aka 'long unsigned int'} makes pointer from integer without a cast [-Wint-conversion]
>     179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                       ^
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:179:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:180:9: note: here
>     180 |         case 4:                                                         \
>         |         ^~~~
>   include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
>      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
>         |                                             ^
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4810:9: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    4810 |         raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c:961:22: note: in expansion of macro 'cmpxchg_relaxed'
>     961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
>         |                      ^~~~~~~~~~~~~~~
>   kernel/sched/sched.h: In function 'mm_cid_put_lazy':
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/sched.h:3292:14: note: in expansion of macro 'try_cmpxchg'
>    3292 |             !try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/sched.h:3292:14: note: in expansion of macro 'try_cmpxchg'
>    3292 |             !try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
>         |              ^~~~~~~~~~~
>   kernel/sched/sched.h: In function 'mm_cid_get':
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/sched.h:3429:21: note: in expansion of macro 'try_cmpxchg'
>    3429 |                 if (try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
>         |                     ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/sched.h:3429:21: note: in expansion of macro 'try_cmpxchg'
>    3429 |                 if (try_cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, &cid, MM_CID_UNSET))
>         |                     ^~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h: In function 'raw_atomic_cmpxchg_relaxed':
>   arch/riscv/include/asm/cmpxchg.h:179:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     179 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:2108:16: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    2108 |         return raw_cmpxchg_relaxed(&v->counter, old, new);
>         |                ^~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:180:9: note: here
>     180 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:212:30: note: in expansion of macro '__cmpxchg_relaxed'
>     212 |         (__typeof__(*(ptr))) __cmpxchg_relaxed((ptr),                   \
>         |                              ^~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:89:29: note: in expansion of macro 'arch_cmpxchg_relaxed'
>      89 | #define raw_cmpxchg_relaxed arch_cmpxchg_relaxed
>         |                             ^~~~~~~~~~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:2108:16: note: in expansion of macro 'raw_cmpxchg_relaxed'
>    2108 |         return raw_cmpxchg_relaxed(&v->counter, old, new);
>         |                ^~~~~~~~~~~~~~~~~~~
>   kernel/sched/core.c: In function '__sched_mm_cid_migrate_from_try_steal_cid':
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11724:14: note: in expansion of macro 'try_cmpxchg'
>   11724 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &src_cid, lazy_cid))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11724:14: note: in expansion of macro 'try_cmpxchg'
>   11724 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &src_cid, lazy_cid))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11760:14: note: in expansion of macro 'try_cmpxchg'
>   11760 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11760:14: note: in expansion of macro 'try_cmpxchg'
>   11760 |         if (!try_cmpxchg(&src_pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
>         |              ^~~~~~~~~~~
>   kernel/sched/core.c: In function 'task_mm_cid_work':
>   arch/riscv/include/asm/cmpxchg.h:333:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
>    4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~
>   kernel/sched/core.c:11945:23: note: in expansion of macro 'cmpxchg'
>   11945 |                 res = cmpxchg(&mm->mm_cid_next_scan, old_scan, next_scan);
>         |                       ^~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
>    4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~
>   kernel/sched/core.c:11945:23: note: in expansion of macro 'cmpxchg'
>   11945 |                 res = cmpxchg(&mm->mm_cid_next_scan, old_scan, next_scan);
>         |                       ^~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:333:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11953:14: note: in expansion of macro 'try_cmpxchg'
>   11953 |         if (!try_cmpxchg(&mm->mm_cid_next_scan, &old_scan, next_scan))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11953:14: note: in expansion of macro 'try_cmpxchg'
>   11953 |         if (!try_cmpxchg(&mm->mm_cid_next_scan, &old_scan, next_scan))
>         |              ^~~~~~~~~~~
>   kernel/sched/core.c: In function 'sched_mm_cid_remote_clear':
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11841:14: note: in expansion of macro 'try_cmpxchg'
>   11841 |         if (!try_cmpxchg(&pcpu_cid->cid, &cid, lazy_cid))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11841:14: note: in expansion of macro 'try_cmpxchg'
>   11841 |         if (!try_cmpxchg(&pcpu_cid->cid, &cid, lazy_cid))
>         |              ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11874:21: note: in expansion of macro 'try_cmpxchg'
>   11874 |                 if (try_cmpxchg(&pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
>         |                     ^~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:192:16: note: in expansion of macro 'raw_cmpxchg'
>     192 |         ___r = raw_cmpxchg((_ptr), ___o, (_new)); \
>         |                ^~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4880:9: note: in expansion of macro 'raw_try_cmpxchg'
>    4880 |         raw_try_cmpxchg(__ai_ptr, __ai_oldp, __VA_ARGS__); \
>         |         ^~~~~~~~~~~~~~~
>   kernel/sched/core.c:11874:21: note: in expansion of macro 'try_cmpxchg'
>   11874 |                 if (try_cmpxchg(&pcpu_cid->cid, &lazy_cid, MM_CID_UNSET))
>         |                     ^~~~~~~~~~~
>   kernel/sched/sched.h: In function 'mm_cid_pcpu_unset':
>   arch/riscv/include/asm/cmpxchg.h:333:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     333 |                 __ret = cmpxchg_emu_u16((volatile u16 *)__ptr, __old, __new); \
>         |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
>    4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~
>   kernel/sched/sched.h:3310:23: note: in expansion of macro 'cmpxchg'
>    3310 |                 res = cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, cid, MM_CID_UNSET);
>         |                       ^~~~~~~
>   arch/riscv/include/asm/cmpxchg.h:334:9: note: here
>     334 |         case 4:                                                         \
>         |         ^~~~
>   arch/riscv/include/asm/cmpxchg.h:368:30: note: in expansion of macro '__cmpxchg'
>     368 |         (__typeof__(*(ptr))) __cmpxchg((ptr),                           \
>         |                              ^~~~~~~~~
>   include/linux/atomic/atomic-arch-fallback.h:55:21: note: in expansion of macro 'arch_cmpxchg'
>      55 | #define raw_cmpxchg arch_cmpxchg
>         |                     ^~~~~~~~~~~~
>   include/linux/atomic/atomic-instrumented.h:4788:9: note: in expansion of macro 'raw_cmpxchg'
>    4788 |         raw_cmpxchg(__ai_ptr, __VA_ARGS__); \
>         |         ^~~~~~~~~~~
>   kernel/sched/sched.h:3310:23: note: in expansion of macro 'cmpxchg'
>    3310 |                 res = cmpxchg(&this_cpu_ptr(pcpu_cid)->cid, cid, MM_CID_UNSET);
>         |                       ^~~~~~~
> 
> > > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> > >
> > > riscv:
> > >   build:
> > >     * clang-17-lkftconfig - Failed
> > >     * rv32-clang-17-defconfig - Failed
> > >     * clang-17-tinyconfig - Failed
> > >     * rv32-clang-17-tinyconfig - Failed
> > >     * clang-17-defconfig - Failed
> > >     * clang-17-allnoconfig - Failed
> > >     * rv32-clang-17-allnoconfig - Failed
> > >
> > > Build log:
> > > -------
> > > kernel/sched/core.c:961:15: error: incompatible pointer to integer
> > > conversion passing 'typeof (*((__ai_ptr)))' (aka 'struct wake_q_node
> > > *') to parameter of type 'uintptr_t' (aka 'unsigned long')
> > > [-Wint-conversion]
> > >   961 |         if (unlikely(cmpxchg_relaxed(&node->next, NULL, WAKE_Q_TAIL)))
> > >       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > 
> > There is no recent change on this code. Could it be a change in
> > cmpxchg_relaxed ?
> 
> Yes, it is caused by commit df35ee400e06 ("riscv: Emulate one-byte and
> two-byte cmpxchg") in -next. There is another thread on this problem
> with a suggested diff that resolves it for me (there are other issues
> with that change as well such as break not being in the correct
> location):
> 
> https://lore.kernel.org/Zgz98szFLLjTIZSO@yujie-X299/
> 
> Cheers,
> Nathan

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2024-04-03 19:56 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-04-03  7:38 kernel/sched/core.c:961:15: error: incompatible pointer to integer conversion passing 'typeof Naresh Kamboju
2024-04-03 13:26 ` Vincent Guittot
2024-04-03 16:00   ` Nathan Chancellor
2024-04-03 19:56     ` Paul E. McKenney

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