From: Jakub Kicinski <kuba@kernel.org>
To: Leon Hwang <leon.hwang@linux.dev>
Cc: bpf@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
Jiri Olsa <jolsa@kernel.org>,
Emil Tsalapatis <emil@etsalapatis.com>,
Ihor Solodrai <ihor.solodrai@linux.dev>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Shuah Khan <shuah@kernel.org>,
Kuniyuki Iwashima <kuniyu@google.com>,
Hangbin Liu <liuhangbin@gmail.com>,
Martin Karsten <mkarsten@uwaterloo.ca>,
Masashi Honma <masashi.honma@gmail.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-trace-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH bpf-next v5 2/6] bpf: Add syscall common attrs support for xdp link_create
Date: Tue, 27 Oct 2026 16:07:57 -0700 [thread overview]
Message-ID: <20261027160757.458c606e@kernel.org> (raw)
In-Reply-To: <20261026154948.99408-3-leon.hwang@linux.dev>
On Mon, 26 Oct 2026 23:49:43 +0800 Leon Hwang wrote:
> With the syscall common attrs support for link_create, add syscall common
> attrs support for xdp link_create in order to report the invalid target
> ifindex error and the underlying driver's error.
>
> Instead of passing bpf log to bpf_xdp_link_attach(), pass an extack to
> receive the underlying driver's error message. If pass bpf log to
> bpf_xdp_link_attach(), it will introduce bpf_verifier.h dependency for
> net/core/dev.c, which is not acceptable for maintainability.
>
> Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Thanks!
next prev parent reply other threads:[~2026-10-27 23:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 15:49 [PATCH bpf-next v5 0/6] bpf: Add syscall common attrs support for xdp link_create Leon Hwang
2026-10-26 15:49 ` [PATCH bpf-next v5 1/6] bpf: Add syscall common attrs support for link_create Leon Hwang
2026-10-26 16:06 ` sashiko-bot
2026-10-29 6:35 ` Leon Hwang
2026-10-26 15:49 ` [PATCH bpf-next v5 2/6] bpf: Add syscall common attrs support for xdp link_create Leon Hwang
2026-10-27 23:07 ` Jakub Kicinski [this message]
2026-10-26 15:49 ` [PATCH bpf-next v5 3/6] bpf: Retire tracepoint bpf_xdp_link_attach_failed Leon Hwang
2026-10-26 15:49 ` [PATCH bpf-next v5 4/6] libbpf: Factor out __sys_bpf_fd helper Leon Hwang
2026-10-26 15:49 ` [PATCH bpf-next v5 5/6] libbpf: Add log_opts support for bpf_link_create Leon Hwang
2026-10-26 16:05 ` sashiko-bot
2026-10-29 6:36 ` Leon Hwang
2026-10-26 15:49 ` [PATCH bpf-next v5 6/6] selftests/bpf: Add tests to verify link_create logs Leon Hwang
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