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From: Leon Hwang <leon.hwang@linux.dev>
To: bpf@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	John Fastabend <john.fastabend@gmail.com>,
	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>,
	linux-kernel@vger.kernel.org, Leon Hwang <leon.hwang@linux.dev>
Subject: [PATCH bpf-next 0/2] bpf: Two trampoline cleanups
Date: Fri, 16 Oct 2026 22:20:12 +0800	[thread overview]
Message-ID: <20261016142014.12420-1-leon.hwang@linux.dev> (raw)

Split these two cleanups for trampoline from the series
"[PATCH bpf-next v2 00/21] bpf: Add tracing_multi link support for bpf progs" [1].

Since the tr->ip is ftrace_location()-ed in bpf_trampoline_lookup(), no
need to call ftrace_location(tr->ip) again in
register/unregister/modify_fentry_multi(). Also no need to call
ftrace_location() for the target addr in register_fentry(), when
initialize ftrace_managed in bpf_trampoline_get().

Links:
[1] https://lore.kernel.org/bpf/20261012154024.29423-1-leon.hwang@linux.dev/

Leon Hwang (2):
  bpf: Initialize ftrace_managed in bpf_trampoline_get()
  bpf: Drop unnecessary ftrace_location() in
    register/unregister/modify_fentry_multi()

 kernel/bpf/trampoline.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

-- 
2.55.0


             reply	other threads:[~2026-10-16 14:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-16 14:20 Leon Hwang [this message]
2026-10-16 14:20 ` [PATCH bpf-next 1/2] bpf: Initialize ftrace_managed in bpf_trampoline_get() Leon Hwang
2026-10-16 14:32   ` sashiko-bot
2026-10-16 14:20 ` [PATCH bpf-next 2/2] bpf: Drop unnecessary ftrace_location() in register/unregister/modify_fentry_multi() Leon Hwang
2026-10-16 16:50 ` [PATCH bpf-next 0/2] bpf: Two trampoline cleanups patchwork-bot+netdevbpf

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