From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CEB26C433F5 for ; Wed, 11 May 2022 20:05:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347561AbiEKUFP (ORCPT ); Wed, 11 May 2022 16:05:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbiEKUFN (ORCPT ); Wed, 11 May 2022 16:05:13 -0400 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C86FA2317E8; Wed, 11 May 2022 13:05:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=cfPMnwRmX7h9FC5zogrRSwPWC8hDFfBXdcAc10BCDXg=; b=PNZaBGeXFsuAaBpHuaMdvRY4/s 9D5MPz4xTVgTuRGWrB/KEfGG5tVa1JqSC/LT3Rso5sabWhCAduFdYhflwDt6bgTFq6qWGSH0+ncvk oTm6f/w8sOzZYRkq+1JkZmdb25beje8r1H2EX6HM4WVyQEo/2Q4CTK9pG4z28p8fSDjazKpN99+TQ EpXC0JAykc5ZUnUcVTqfleYx6Z4fPGlU4RkoA5IfJGN2tN+4XLZXjyd3oEcuP2YNdEgKXaQFpZZnR Vejz8nGO8jKYtblRG3YNO8+SxkagQsqAK3ZztXb4IgRQ6EnIjofQ7r4kch6g3mJv37QTO/U/Hn9jn eVwzVLtQ==; Received: from [177.183.162.244] (helo=[192.168.0.5]) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim) id 1nosZy-0009Kz-VC; Wed, 11 May 2022 22:05:03 +0200 Message-ID: Date: Wed, 11 May 2022 17:03:51 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCH 23/30] printk: kmsg_dump: Introduce helper to inform number of dumpers Content-Language: en-US To: Steven Rostedt Cc: akpm@linux-foundation.org, bhe@redhat.com, pmladek@suse.com, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linuxppc-dev@lists.ozlabs.org, linux-alpha@vger.kernel.org, linux-edac@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-leds@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-pm@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, linux-tegra@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, netdev@vger.kernel.org, openipmi-developer@lists.sourceforge.net, rcu@vger.kernel.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org, kernel-dev@igalia.com, kernel@gpiccoli.net, halves@canonical.com, fabiomirmar@gmail.com, alejandro.j.jimenez@oracle.com, andriy.shevchenko@linux.intel.com, arnd@arndb.de, bp@alien8.de, corbet@lwn.net, d.hatayama@jp.fujitsu.com, dave.hansen@linux.intel.com, dyoung@redhat.com, feng.tang@intel.com, gregkh@linuxfoundation.org, mikelley@microsoft.com, hidehiro.kawai.ez@hitachi.com, jgross@suse.com, john.ogness@linutronix.de, keescook@chromium.org, luto@kernel.org, mhiramat@kernel.org, mingo@redhat.com, paulmck@kernel.org, peterz@infradead.org, senozhatsky@chromium.org, stern@rowland.harvard.edu, tglx@linutronix.de, vgoyal@redhat.com, vkuznets@redhat.com, will@kernel.org References: <20220427224924.592546-1-gpiccoli@igalia.com> <20220427224924.592546-24-gpiccoli@igalia.com> <20220510134014.3923ccba@gandalf.local.home> From: "Guilherme G. Piccoli" In-Reply-To: <20220510134014.3923ccba@gandalf.local.home> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/05/2022 14:40, Steven Rostedt wrote: > On Wed, 27 Apr 2022 19:49:17 -0300 > "Guilherme G. Piccoli" wrote: > >> Currently we don't have a way to check if there are dumpers set, >> except counting the list members maybe. This patch introduces a very >> simple helper to provide this information, by just keeping track of >> registered/unregistered kmsg dumpers. It's going to be used on the >> panic path in the subsequent patch. > > FYI, it is considered "bad form" to reference in the change log "this > patch". We know this is a patch. The change log should just talk about what > is being done. So can you reword your change logs (you do this is almost > every patch). Here's what I would reword the above to be: > > Currently we don't have a way to check if there are dumpers set, except > perhaps by counting the list members. Introduce a very simple helper to > provide this information, by just keeping track of registered/unregistered > kmsg dumpers. This will simplify the refactoring of the panic path. Thanks for the hint, you're right - it's almost in all of my patches. I'll reword all of them (except the ones already merged) to remove this "bad form". Cheers, Guilherme