From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) (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 8B38A4BC019; Thu, 2 Jul 2026 14:04:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783001101; cv=none; b=rztglzS+c3ZWW/jnPJl7YM9e3ZnrYB4t90mHKtgf3wfK++n+nsN5u5rFleq2FcmUCW3UeR45iQ2dydDLTnKT8P9OV2IG1RQnjvlsrYEGWUjtXRY4oyjam4I36AkXPUjRXUvz72ZooCI900AvtDQba4Mh+hMLMT0LYI3jlzlUNbo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783001101; c=relaxed/simple; bh=AtnyyeRv4nq4SIJbNgmIDdSF2U3BWIQ9rT/ZMoJJzLg=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LyldOW7AVjKWIL9aAdniILOm56Xjsykqv3qxAPhVa0IR2fLrXg1oYLT3PD5EuLs3jP3G7gkh5oVIialAQWFku/f9Ny+o4uFPg5IDjPLo1RvEgih7iysTm0FRHCWx08gxcx7gM+zJWxylkGBKRuHcrTKYpDqnPRfDgCD3Nf47YMo= 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=216.40.44.15 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 omf15.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id DA6BF1C3ACA; Thu, 2 Jul 2026 14:04:57 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf15.hostedemail.com (Postfix) with ESMTPA id C025418; Thu, 2 Jul 2026 14:04:55 +0000 (UTC) Date: Thu, 2 Jul 2026 10:04:58 -0400 From: Steven Rostedt To: Alexei Starovoitov Cc: Masami Hiramatsu , Shuah Khan , Mathieu Desnoyers , LKML , linux-trace-kernel , "open list:KERNEL SELFTEST FRAMEWORK" , bpf Subject: Re: [RFC PATCH 2/4] tracing/probes: Compile all fetchargs into a single BPF program per event Message-ID: <20260702100458.46c474b9@gandalf.local.home> In-Reply-To: References: <178291352217.1566898.14481561093843379745.stgit@devnote2> <178291354144.1566898.14374948740441958770.stgit@devnote2> <20260702074007.e1047c9d66cbcecc7d4ab3a9@kernel.org> 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-Rspamd-Server: rspamout07 X-Rspamd-Queue-Id: C025418 X-Stat-Signature: queikjky76apzk5b8e1u88qbitu8yj74 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1+aytJtn7SWc3YLhYQoDoYv/QA7vT9+pFw= X-HE-Tag: 1783001095-298031 X-HE-Meta: U2FsdGVkX19y/Zm6kF21iOlpt1tGwqHfdDEZVnuX77Qq+HB+Mz7zmKScjCBRA9BghNYlLeX12lptyGW2798RBcwq/bGnnv23izoPFiM42UgWIPz9/hqywABbrlDgJmtzIE5jY2KoNpaKdvMmvxT8sKmWnny5gM+tHLRpinVkiKa9f4khcUOtK8TGGpesxNA89UcduffgUBo3Sp0kQ2jst++F12p9kaoMLk+iK67TqxjPU8BM8jNg2sMucG/B+RkAvd4CURFYCtt9ffJp0LpjWFF7qtkhA1YxSLmqN98ILv4ZlpD6MXzmEbCQiJ2rym5N3F1AdcMWLlUJvvhk+7ffpeLH+sUb4D0z On Wed, 1 Jul 2026 17:01:01 -0700 Alexei Starovoitov wrote: > The whole feature you're trying to do is imo reinvention of the wheel. > bpf could do that kind of filtering years ago. > I don't buy the excuse that embedded environments without any > kind of user space needs this facility. And what embedded environments do you work with? Feel free to go to Embedded Recipes and talk with developers there. -- Steve