[PATCH linux-next] bpf: fix warning for crash_kexec

[Stanislav Fomichev]

On 02/09, Hari Bathini wrote:
> With [1], CONFIG_KEXEC & !CONFIG_CRASH_DUMP is supported but that led
> to the below warning:
> 
>   "WARN: resolve_btfids: unresolved symbol crash_kexec"
> 
> Fix it by using the appropriate #ifdef.

Same question here: how did you find this particular kconfig option
(CONFIG_CRASH_DUMP) to use? Looking at the code, crash_kexec is defined
in kernel/kexec_core.c and it's gated by CONFIG_KEXEC_CORE. So the
existing ifdef seems correct?