From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F241344999F for ; Wed, 14 Oct 2026 21:43:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792014201; cv=none; b=OCInMtSTX+6U6p3ZidjBQ0WvI+OUb1ITeO2hR7yqBz8c7X9X0/DTlFeXMvV1LEPqGEz+cdoRJmMBqWvtj7wQ6x6UQubQeG4GykLuayGY3CwSNAoTaGHjTBde62Qd53rfMRXZAk/px1e+9eEvQfkPozXTwGbp1YxekjePyc1G/y0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792014201; c=relaxed/simple; bh=vN3QRsmAUS70n+XecR/F37adlA8EFACezZg+XFXg/RE=; h=From:Date:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=STDD1mLSynr4OpCAvazNx8zIizvYcCBb2SUzy82vuNr5tv5Lqzrl95kJrrhprIzQhugOPmPKuq6SA6WJfYwcdhQVQ2stn1KsSxXP4+WaHLaRi2/koDuwNaNyQ14MP7OwHxI+hDd3j/VvN97cjQIw4dT8jA9vM3ApXhEW57NVuZ8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=W7Uaswds; arc=none smtp.client-ip=209.85.128.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="W7Uaswds" Received: by mail-wm1-f47.google.com with SMTP id 5b1f17b1804b1-4a1698ea378so37936915e9.2 for ; Wed, 14 Oct 2026 14:43:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1792014197; x=1792618997; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:date:from:from:to:cc:subject :date:message-id:reply-to:content-type; bh=PCWceIALROvD7GFJFqjW3lbx85nNdj6qe6chpWvRNQE=; b=W7Uaswds3m0JB0L74uwop7c3EG1uelvJOCEqveE37A9EJm2a3Ss2CWnuMO0qWI1YFr OM1nl9P+x0+cJWg2+z005ZKCwxw7vTM94epqG3s8xNYZvQofywE/IPm+hGhdx5Izq2oo 9GFBZr+fZqxT7+rGP+6EnZtheMXnoL2xCN200uIMHxSMIrXeSacH76F3qImi460Rbt6G n5ofyjI5lawF+xj5tvNQwX3jqgFJI7qIQK2h3Pg2hbjN4dz9BxJIf02D2+V+U0/GISew A6P7Kw0h310n3HzWYtGwE0l6FoK5pCWgJvFTXhwmGP3fdqGybm6bSzXCMqOx6A7u54cb 7E5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792014197; x=1792618997; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=PCWceIALROvD7GFJFqjW3lbx85nNdj6qe6chpWvRNQE=; b=Ya8wqqJvau3ysNDzDt7hddL3b4svG9QQEuTnVifh3XCdfwhHgbfCCwzn4RfRhQRwH0 DVQ4iBADRTdnV9ZANUYyibUCUhD2I7kLRN2wFGQnis9s/LZaMXVdNMoj9z1oLaZyHznu BkFORNHU/2lXKhJ2wt10Vtks8+uuWnca6Z+uL83P/OxlILysY4kC5Dq6RPQ88ziRb2PI Jr+7AlUsRqIkhzehC4MQkuOJOtF8bxr+sKI5FWT8oanx70Hj/bONh4Px8fHWPxL7ipo0 XSv5ru6ZAdeof8+BumeHHps5jvpr/Dy0lWGSV+OOePg6LemLlAEi7bTWNoKaiBeKuOt7 Bsvw== X-Forwarded-Encrypted: i=1; AKwUvByHaGHRRI+qC4/8R2hOf7z0jlwxneCWJwgGkGxlxhor8bTxdDEtE+cLWcOpa6phoizuE9TFiYNzxs3oehgfTyEm2wU=@vger.kernel.org X-Gm-Message-State: AFq9FYIEVicco6y2WwBsyCmEAQyouVD/lN8DVh7lH2aSo0tVQPDAB4VD ZIZfMxH5DYhN9gLE6o7qPB3BV6FZGMXBXjpAXFXZGWrnqX9HXCICGbrM X-Gm-Gg: AYBFou0fK5VvBOrBdo3MUno+jAOuZ+bDm3rXh3p/KH+e3KRJhVfIlm4OXQSIiodEBzu GL5g+aGTCY1QNNIhDBmunJW4p0vChq0hfOpQ4zY/R3QLqRbZ2w4i6Eyo+3ctcywxE+QYUneUIre ibjhOt1TTA6iGJBQkohi/4US+vFJ+KybrTUhbexpE8XKIvCLplF2/QTXmEI8gzs8r7/F0UOajIT dOceboKD99cc/P+C3WyOe4ROFKgLIQClsgpVDR2bHWY6RyinDNtuIIiWvzcv3Y3tNi7oC4c5ryx A9kpsjVh3pjGFd1980f1Chnn7/GkB9htlbdrEHGU2zavBsifhKFqTexG0Qv8XzIwZ39tznfms+I qNEgBT9K5iivtN6FwDrZMZXuHBNnPexiUOiUP9WgYwpFWc/wdJjfm30nls+Ctg25nK/7yB1xucZ YAYoTGEm0Q5wTLzdV/GgMgpig6dBl/nyWWrfqz8GxLUB6IpzIhSNndR5k6pa0= X-Received: by 2002:a05:600c:19ca:b0:4a0:2484:2800 with SMTP id 5b1f17b1804b1-4a18e4464famr330783705e9.3.1792014196956; Wed, 14 Oct 2026 14:43:16 -0700 (PDT) Received: from krava ([176.74.159.170]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1bd7319c6sm24456265e9.0.2026.10.14.14.43.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2026 14:43:16 -0700 (PDT) From: Jiri Olsa X-Google-Original-From: Jiri Olsa Date: Wed, 14 Oct 2026 23:43:08 +0200 To: Leon Hwang Cc: bpf@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Emil Tsalapatis , Ihor Solodrai , Quentin Monnet , Shuah Khan , Mykyta Yatsenko , Avinash Duduskar , Anton Protopopov , Amery Hung , Jordan Rife , Rong Tao , Eyal Birger , Pu Lehui , Jingguo Tan , Lin Ma , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH bpf-next v2 09/21] bpf: Add bpf_trampoline_multi_prog_attach/detach() Message-ID: References: <20261012154024.29423-1-leon.hwang@linux.dev> <20261012154024.29423-10-leon.hwang@linux.dev> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261012154024.29423-10-leon.hwang@linux.dev> On Mon, Oct 12, 2026 at 11:40:11PM +0800, Leon Hwang wrote: SNIP > @@ -2089,10 +2101,25 @@ struct bpf_tracing_link { > struct bpf_prog *tgt_prog; > }; > > +enum bpf_text_poke_type { > + BPF_MOD_NOP, > + BPF_MOD_CALL, > + BPF_MOD_JUMP, > +}; > + > +struct bpf_text_poke { > + void *ip; > + void *old_addr; > + void *new_addr; > + enum bpf_text_poke_type old_t; > + enum bpf_text_poke_type new_t; > +}; > + > struct bpf_tracing_multi_node { > struct bpf_tramp_node node; > struct bpf_trampoline *trampoline; > struct ftrace_func_entry entry; > + struct bpf_text_poke poke; could we have union of entry and poke ? jirka