From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) (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 50A2B188596; Mon, 1 Jun 2026 17:30:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780335051; cv=none; b=PYut4nLzgG7OIdYErvs0NvAyc9dLxyAaQikrzRVfTAgR07SHtCBGcTEfMlIPXeZ6CP1RBJ14MG4Inp7kpvVsdKv38wCV4SzPEAHCeD5AgS8VObsNFt48WCI/oIkBz9s6ozlKlUn37B+speWRER0c5udfWHgPIlGDb7ZmV+eRsms= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780335051; c=relaxed/simple; bh=97+NW5U8onxsm044d2kfWmY/xSuGmDM03nGe1Q7YAaE=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HD+aYoFVPOwMDyJBAA6yzxccYNwWh8hjodfogobnQJ3ZJALwNg4JxpnqyXEzkdafCr3sF10CuqulbNu58LFYzXE2S12W5CqXOULWkkSkkZbjRWJVc7QL7ovtSSE0s4d4b2nYn5uBPFDS4cPfRp6DTPxSy/cLD7kFg/pzMvbi6mg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf13.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id D6217C1DA7; Mon, 1 Jun 2026 17:30:46 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf13.hostedemail.com (Postfix) with ESMTPA id E95FD20010; Mon, 1 Jun 2026 17:30:43 +0000 (UTC) Date: Mon, 1 Jun 2026 13:31:29 -0400 From: Steven Rostedt To: LKML , Linux Trace Kernel Cc: Masami Hiramatsu , Mathieu Desnoyers , Mark Rutland , Peter Zijlstra , Namhyung Kim , Takaya Saeki , Douglas Raillard , Tom Zanussi , Andrew Morton , Thomas Gleixner , Ian Rogers , Jiri Olsa Subject: Re: [PATCH v8] tracing/eprobes: Allow use of BTF names to dereference pointers Message-ID: <20260601133129.4a1e9dec@gandalf.local.home> In-Reply-To: <20260601130746.2139d926@gandalf.local.home> References: <20260601130746.2139d926@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) 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-Transfer-Encoding: 7bit X-Stat-Signature: tqnkbqoi895my9wxtnfmknn3f3urin6m X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: E95FD20010 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX18HbeiqPwovAe31KOlwWtoTq4MfqJXC3+U= X-HE-Tag: 1780335043-44465 X-HE-Meta: U2FsdGVkX18W7RATBPIKEdSvGxOeLk5OPustDhAYZnF7I7vvn2OT6hZyo8/AmmmOqaIYgJ9zlQLeFjkdBjLIlg0MbPXjTfQiVnXJORyh231t2QehhIMtv8BCBwyr3IB6vz2J+q6rQIBdiMpmhknQKq9bYHa8r02YibOdx9HOBDF510TD5zHDPy/9CcfuCKIEUNvsLcEXf0PyaLweHpcd5wiSMuJnpDvImes2OsvkxOtDOV1q+MeVrXJG24XV5guB9fi3pxKvb1R6GfIidmzE/chC+RUFm2FDMBzdGtunoqeNAMMRGeWaXE0F18kYap965xc9bO3MEi0f1iUfyRPKORXyu9tYqBA5WqyfN40WQGaH24yahB9eLO0AbiHuVwwAjLwg3ldqVfx2PmzFriRo5JEglgrLWEkqVCkSxLZ3LfpBhz40ZJJC/KKpwNyrZIHHMALMs+kNNWMFnKiOcnxCSQ== On Mon, 1 Jun 2026 13:07:46 -0400 Steven Rostedt wrote: > Changes since v7: https://patch.msgid.link/20260529110442.0967a64c@fedora > > - Add error message in parse_btf_args() for failed parsing of TEVENT. > (Sashiko) > > - Remove TPARG_FL_TYPECAST and just use ctx->struct_btf instead. > The flag was redundant and added unnecessary complexity. > > - Restructure to keep the lifetime of the TYPECAST to the end of > traceprobe_parse_probe_arg_body(). This allows the last_type to stay > around in case there's not a type parameter and then btf can still be > used. > (Sashiko and Masami Hiramatsu) And I rebased onto probes/for-next -- Steve