On 3/15/21 9:08 PM, He Ying wrote:
> We found these warnings in kernel/panic.c by using sparse tool:
> warning: symbol 'panic_smp_self_stop' was not declared.
> warning: symbol 'nmi_panic_self_stop' was not declared.
> warning: symbol 'crash_smp_send_stop' was not declared.
>
> To avoid them, add declarations for these three functions in
> include/linux/smp.h.
>
> Reported-by: Hulk Robot <hul...@huawei.com>
> Signed-off-by: He Ying <heyin...@huawei.com>
> ---
> include/linux/smp.h | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/include/linux/smp.h b/include/linux/smp.h
> index 70c6f6284dcf..861a253cc179 100644
> --- a/include/linux/smp.h
> +++ b/include/linux/smp.h
> @@ -50,6 +50,14 @@ extern unsigned int total_cpus;
> int smp_call_function_single(int cpuid, smp_call_func_t func, void *info,
> int wait);
>
> +/*
> + * Cpus stopping functions in panic. All have default weak definations.
definitions.
> + * Architecure dependent code may override them.
Architecture-dependent
> + */
> +void panic_smp_self_stop(void);
> +void nmi_panic_self_stop(struct pt_regs *regs);
> +void crash_smp_send_stop(void);
> +
> /*
> * Call a function on all processors
> */
>
--
~Randy
