Re: [PATCH sched_ext/for-6.15] tools/sched_ext: Provide a compatible helper for scx_bpf_events()
From: Tejun Heo
Date: Thu Feb 27 2025 - 11:27:36 EST
On Thu, Feb 27, 2025 at 10:11:38AM +0100, Andrea Righi wrote:
> Introduce __COMPAT_scx_bpf_events() to use scx_bpf_events() in a
> compatible way also with kernels that don't provide this kfunc.
>
> This also fixes the following error with scx_qmap when running on a
> kernel that does not provide scx_bpf_events():
>
> ; scx_bpf_events(&events, sizeof(events)); @ scx_qmap.bpf.c:777
> 318: (b7) r2 = 72 ; R2_w=72 async_cb
> 319: <invalid kfunc call>
> kfunc 'scx_bpf_events' is referenced but wasn't resolved
>
> Fixes: 9865f31d852a4 ("sched_ext: Add scx_bpf_events() and scx_read_event() for BPF schedulers")
> Signed-off-by: Andrea Righi <arighi@xxxxxxxxxx>
Applied to sched_ext/for-6.15.
Thanks.
--
tejun