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[2620:137:e000::1:20]) by mx.google.com with ESMTP id u7-20020a50eac7000000b0046e635ee69esi30076786edp.210.2023.01.17.02.28.54; Tue, 17 Jan 2023 02:29:06 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=r4Y8AeRJ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236186AbjAQKKt (ORCPT + 50 others); Tue, 17 Jan 2023 05:10:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236157AbjAQKKq (ORCPT ); Tue, 17 Jan 2023 05:10:46 -0500 Received: from mail-yb1-xb2b.google.com (mail-yb1-xb2b.google.com [IPv6:2607:f8b0:4864:20::b2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08B922D17D for ; Tue, 17 Jan 2023 02:10:46 -0800 (PST) Received: by mail-yb1-xb2b.google.com with SMTP id c124so33320671ybb.13 for ; Tue, 17 Jan 2023 02:10:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=FeEunc7c57U5E1ES1PmT/Q3aXB6Rrk9Kw0lbs/3Ve34=; b=r4Y8AeRJHMntKx3E3zrj5Lg4Sc0z8x5ocjMZCtEz06VvYBC7o3nz0eoUkscm63Twni Dc5PvQ08L/s9q0cmRNMoF2mAyir8csfhqKS7RV37chmqCtj2/1WLvVyDsqoOs5MllaxB vm7MOM5BBxA+3xrOaUDL9ff/dPgwgcMxX663rdM5v6JhkaRBahnCaQ1Ke0MXFfWxqJJJ kJYwESfuhk1uYXizHNA1svrO4zKpenvSSagP/N7nO99l9gQWquy+eJx6ZIwr/ONLUexj xS3bIwp17/+FS0Bg3EyKIVOkytFBskiYPo6kWX1pMWTsdIaCMX7t2XhM0ifZbSGwj8Wc K58Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=FeEunc7c57U5E1ES1PmT/Q3aXB6Rrk9Kw0lbs/3Ve34=; b=jiffT89BNjlNMCDbctSgFcSPMiHdV49e42R9xRxXyDfvyNCF+V8562ciQwMsSZySVR nkJk2djoby7hRhteFXKuiizfNCu0WvSFtkxEOi5f0XjwnYXzpAldwv5ynEI0EYcRiqC2 Crvd24FilGrh5kX3igX1GZNdetR3j97ue+dIhWg/k3J5xdIyzp83YCukB4VweigQwPRi sYDkIrdcPgh9LoBaatpt+W6AKc1hcE8PmXXKt8J1Epahn4+y7+EREqiIkivbM+JWfkLQ kGMhkH+3PVrqcBjsrQN2DZEcRodpRhRiKBzlnjJbwHvk0h+FeQzdymGj4qgAl9AlDQfS IQuQ== X-Gm-Message-State: AFqh2kpcS3FtX6yBJzWeypE7keyi0bs5r68+G4+yBXsRqlu+polzWA/M zOBmV6ixTN0omARSWaVpDzgMaY52EW+dsodejlgBig== X-Received: by 2002:a25:34c5:0:b0:7b3:105b:ac90 with SMTP id b188-20020a2534c5000000b007b3105bac90mr450563yba.196.1673950245215; Tue, 17 Jan 2023 02:10:45 -0800 (PST) MIME-Version: 1.0 References: <20221229160045.535778-1-brgl@bgdev.pl> <20221229160045.535778-3-brgl@bgdev.pl> In-Reply-To: From: Bartosz Golaszewski Date: Tue, 17 Jan 2023 11:10:34 +0100 Message-ID: Subject: Re: [PATCH v2 2/2] i2c: dev: don't allow user-space to deadlock the kernel To: Wolfram Sang , Bartosz Golaszewski , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 17 Jan 2023 at 11:08, Wolfram Sang wrote: > > > > In order to fix that, we introduce a couple changes. They need to be > > part of a single commit in order to preserve bisectability. First, drop > > Do you have maybe a branch at hand with more finegrained commits just > for reviewing? > No, not really. It can be logically split into two elements though: removing the existing completion and then adding the locking bits which unfortunately go into many places. I tried to make the commit description as elaborate as possible but let me know if you have any specific questions. Bart