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=-5.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 64D82C433DF for ; Wed, 12 Aug 2020 03:16:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 337A3206B2 for ; Wed, 12 Aug 2020 03:16:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MTLiheTS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726469AbgHLDQK (ORCPT ); Tue, 11 Aug 2020 23:16:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726333AbgHLDQK (ORCPT ); Tue, 11 Aug 2020 23:16:10 -0400 Received: from mail-ot1-x342.google.com (mail-ot1-x342.google.com [IPv6:2607:f8b0:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9A54C06174A for ; Tue, 11 Aug 2020 20:16:09 -0700 (PDT) Received: by mail-ot1-x342.google.com with SMTP id v6so825876ota.13 for ; Tue, 11 Aug 2020 20:16:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=EJWAIhw+Uzk0ukHNEXeQHpgWicYw0kiCzKoWzJ27Ie0=; b=MTLiheTS0XOBt9CbpvE/Jj4f1Il433GG3u58Ab+d+6HqIca4/kDrwGkA1CmcXiMfc4 uCajPSlV15+FObD0QezdfhAnpKB1tNVK9ibn+aNsIIH8qGZhIyDi3wgE2024U1mM1zDn vRxJwW3lJ1uS0MOv70Wi4T/IYtUNDWlmg+Skfm5S7+fnKk+sBmuSWy0Lp1R4EyNa9NIr N4xWETu8BNrnqSSWcxToegtT0aca5lNK6Wd0WDiJshO5HyLnkgKks0Bnn73++kuv1iRR nTH+BRc9yVp4AXWbioqyMiqhC87oGMVij1Cnh2ihOzJ/4hD7HbjMbtpMTJg8DXbD0Q8q ulkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=EJWAIhw+Uzk0ukHNEXeQHpgWicYw0kiCzKoWzJ27Ie0=; b=Ky79l3j7FT9CWInOPQzyq1zydggRsbJSmOv70ilPFh0DfRma/atny/KcRpkTAH7rQP p5lvHWUZGOYJCjM2ruj5fShOpGVdndip60yZG7OGd6ZowbhjwKCi0zQWWIhjPOzWlxa0 BxJnw8SyQK43JlBFqOV9BI2k9sMo8WUMEI5c3ou4eQ+U8octt9eVv60N455kl1DkTu+U Mt8IWhTNybJxI0yzU6VzdwKZ2OO4+f6pRx6T/MEBm23TDU9Rq8TEtrqj5whbmx2YLzCG 0atpV6H0TJ/VdibZqaSNu3FhZUIg5n2AIUM1cmVqBlZcwz3Y9wM4A7CT7ko5H3pLoW7+ SEyA== X-Gm-Message-State: AOAM530iL+iEvO5rT6937w9BcNbKVQsjhLRi8fjKeQ2nNe3vfb9e4ITG l3G6BUHUr5dnGXMN7Zr0qNY= X-Google-Smtp-Source: ABdhPJxyFzQD3DAQrsBWAMWsFbliCQWz9Cr4zQVb47PX1fsBOTsn5bOcUY1mROCWXRUD1/UVuW5ULg== X-Received: by 2002:a9d:5f0c:: with SMTP id f12mr7322614oti.141.1597202169425; Tue, 11 Aug 2020 20:16:09 -0700 (PDT) Received: from Davids-MacBook-Pro.local ([2601:282:803:7700:c1d8:5dca:975d:16e]) by smtp.googlemail.com with ESMTPSA id l6sm181837otd.20.2020.08.11.20.16.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Aug 2020 20:16:09 -0700 (PDT) Subject: Re: [PATCH net] net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps_cpus To: Eric Dumazet , "David S . Miller" Cc: netdev , Eric Dumazet , =?UTF-8?Q?Maciej_=c5=bbenczykowski?= , Alex Belits , Nitesh Narayan Lal , Peter Zijlstra References: <20200812013440.851707-1-edumazet@google.com> From: David Ahern Message-ID: <5b61d241-fedb-f694-c0a1-e46b0dedab66@gmail.com> Date: Tue, 11 Aug 2020 21:16:04 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200812013440.851707-1-edumazet@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 8/11/20 7:34 PM, Eric Dumazet wrote: > We must accept an empty mask in store_rps_map(), or we are not able > to disable RPS on a queue. 0 works. Is that not sufficient?