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 X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59F81C432BE for ; Wed, 25 Aug 2021 21:47:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39FEE610CA for ; Wed, 25 Aug 2021 21:47:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233576AbhHYVsY (ORCPT ); Wed, 25 Aug 2021 17:48:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:41042 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229707AbhHYVsW (ORCPT ); Wed, 25 Aug 2021 17:48:22 -0400 Received: from rorschach.local.home (unknown [24.94.146.150]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3430E61038; Wed, 25 Aug 2021 21:47:35 +0000 (UTC) Date: Wed, 25 Aug 2021 17:47:33 -0400 From: Steven Rostedt To: Eric Dumazet Cc: Zhongya Yan , Jakub Kicinski , netdev , LKML , Ingo Molnar , David Miller , Hideaki YOSHIFUJI , David Ahern , hengqi.chen@gmail.com, Yonghong Song Subject: Re: [PATCH] net: tcp_drop adds `reason` parameter for tracing Message-ID: <20210825174733.38a484f8@rorschach.local.home> In-Reply-To: References: <20210824125140.190253-1-yan2228598786@gmail.com> <20210824112957.3a780186@oasis.local.home> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, 25 Aug 2021 08:39:40 -0700 Eric Dumazet wrote: > Since these drops are hardly hot path, why not simply use a string ? > An ENUM will not really help grep games. I'm more concerned with ring buffer space than hot paths. The ring buffer is limited in size, and the bigger the events, the less there are. grep games shouldn't be too bad, since it would find the place that maps the names with the enums, and then you just search for the enums. -- Steve