linux-kernel - Re: [PATCH v2] xdp: tracing: Hide some xdp events under CONFIG_BPF

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Message-ID: <87wm9grpsy.fsf@toke.dk>
Date: Fri, 13 Jun 2025 10:47:25 +0200
From: Toke Høiland-Jørgensen <toke@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>, LKML
 <linux-kernel@...r.kernel.org>, Linux trace kernel
 <linux-trace-kernel@...r.kernel.org>, bpf@...r.kernel.org
Cc: Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>, "David S. Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Jesper Dangaard
 Brouer <hawk@...nel.org>, John Fastabend <john.fastabend@...il.com>
Subject: Re: [PATCH v2] xdp: tracing: Hide some xdp events under
 CONFIG_BPF_SYSCALL

Steven Rostedt <rostedt@...dmis.org> writes:

> From: Steven Rostedt <rostedt@...dmis.org>
>
> The events xdp_cpumap_kthread, xdp_cpumap_enqueue and xdp_devmap_xmit are
> only called when CONFIG_BPF_SYSCALL is defined.  As each event can take up
> to 5K regardless if they are used or not, it's best not to define them
> when they are not used. Add #ifdef around these events when they are not
> used.
>
> Acked-by: Jesper Dangaard Brouer <hawk@...nel.org>
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>

Reviewed-by: Toke Høiland-Jørgensen <toke@...nel.org>