From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BD3C82D73BD; Fri, 19 Dec 2025 11:41:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.18.0.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766144508; cv=none; b=skWaNl5ssWNrCOOOuIEGcItO6GNH/DGH/YdOimP7SeG32vyiwBHMP4PWF6UcIctNgDnexyFETf5sxxA0qGcI4JSNy72bGTp+ookKZ7tyBuiMl4VBa67DKaHF82jC1vBQLWJsBxXH5siU3++orpUWrdU24vymLd6CtywCpgwIVQ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766144508; c=relaxed/simple; bh=x0W6EBDjHgwyMt4d65/PXQGDvq+nrVv+WCtHzooRlhg=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=t6jb7L+BJO/yV8/1MyHqH99gAnS4/IntVmLc8jPjfGoxLGjD2CLFNWeWJ4xLpROsuCrXHJ00fO6TQl8vBmnLUXbyqFN+u9yBXG2imqq004CHmgPeduCajj+yYYYUXQDo1jqRQWrcSGnP0w5wkySMVamNOLxWaWX/iJgbstsawws= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org; spf=pass smtp.mailfrom=nefkom.net; arc=none smtp.client-ip=212.18.0.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nefkom.net Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) by mail-out.m-online.net (Postfix) with ESMTP id 4dXlxL19g8z1sFNW; Fri, 19 Dec 2025 12:41:42 +0100 (CET) Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4dXlxH1dJCz1sFNH; Fri, 19 Dec 2025 12:41:39 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 4dXlxG5Zj7z1qqlS; Fri, 19 Dec 2025 12:41:38 +0100 (CET) X-Virus-Scanned: amavis at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavis, port 10024) with ESMTP id yUPy3BUYOinu; Fri, 19 Dec 2025 12:41:28 +0100 (CET) X-Auth-Info: NdOAqSKqpUa2L5w9K1GQfsmLFAunuGbI2egYxigMFH/QHOan6ylJbRSfO4blGbe+ Received: from igel.home (aftr-82-135-83-185.dynamic.mnet-online.de [82.135.83.185]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Fri, 19 Dec 2025 12:41:27 +0100 (CET) Received: by igel.home (Postfix, from userid 1000) id AA7802C199C; Fri, 19 Dec 2025 12:41:27 +0100 (CET) From: Andreas Schwab To: Menglong Dong Cc: Menglong Dong , ast@kernel.org, rostedt@goodmis.org, daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, mhiramat@kernel.org, mark.rutland@arm.com, mathieu.desnoyers@efficios.com, jiang.biao@linux.dev, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH bpf-next v3 3/6] bpf: fix the usage of BPF_TRAMP_F_SKIP_FRAME In-Reply-To: <3730454.R56niFO833@7940hx> (Menglong Dong's message of "Fri, 19 Dec 2025 10:22:01 +0800") References: <20251118123639.688444-1-dongml2@chinatelecom.cn> <20251118123639.688444-4-dongml2@chinatelecom.cn> <874ipnkfvt.fsf@igel.home> <3730454.R56niFO833@7940hx> Date: Fri, 19 Dec 2025 12:41:27 +0100 Message-ID: <875xa2g0m0.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) 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 On Dez 19 2025, Menglong Dong wrote: > BPF_TRAMP_F_ORIG_STACK How can that ever be set? if (flags & (BPF_TRAMP_F_ORIG_STACK | BPF_TRAMP_F_SHARE_IPMODIFY)) return -ENOTSUPP; -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."