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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D84DDC9832F for ; Mon, 28 Sep 2026 09:25:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ePovJIioM1ipgDKQDGN2uNP15cDFy1xw6rBFUlGkct0=; b=FT834Q/1Q6n5MDacMugzEt20fP zl6FCpWa4E4rugxy9P6r5uFskgCZj94mCl8UwmdZM7eAhTAho8lJZG8z0/s5KO7X/TvoihAtGkxBA hE30xdHn2ljTMdSLQu12Eio1n4NZeYpKUZJnHR1UJUDyoj9n/LFytmQoWg1ayiN1mJ+Xry5mpgllA KMMnVH2FbQ8nWowKedIzozxiELa4PIaX5GxikJVJfEmApBCIQ1ceJknXf5EfjYHHAxmD/bLVUsC2y loRUU/cWRxedXTB1IQYHr9tto60OOeEK1HYXdpY9FcjNZnJHgy5hOkiRag6wOMtbazwX8wFbzpzuz 7eL6mW+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB7cK-00000000DEc-14QW; Mon, 28 Sep 2026 09:25:48 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB7cJ-00000000DEI-0ygw for linux-um@lists.infradead.org; Mon, 28 Sep 2026 09:25:47 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id A1D41416FF; Mon, 28 Sep 2026 09:25:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5A241F000FF; Mon, 28 Sep 2026 09:25:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790587546; bh=ePovJIioM1ipgDKQDGN2uNP15cDFy1xw6rBFUlGkct0=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=I9nCQsQrodPBIAuw9DKd4DDPXJ5vehsGPkAbnRMf5Ny4yrlHb4MGfiGRAZZ42sOnp AafWGSqmioUIOpB7XLP3tIhQisxsvdt6QH2i1yLWc9x64tp+ISvc1ZNclTCG2vAErT SEeFM2Orn0WNnkLCkA5CdWqFKZKfxBERk6vTk5FtLEcQLZ0kGjxOF+Dz1COo8wxvui HUsVbEOkMzixhxUk0GqAhEHb4yYm75QAypSb4f9KOcQLM8azd6UvcYuDoqP5nDsX3B JnH2tsJobsv7pLHvZFzN1Dq6dzO3LwWa61AtPwK9htqbWogQEcNitdKxeK6SJbp667 h2WtW+sXUGd1g== Message-ID: <67722705-d45b-4474-90dc-e2402d766688@kernel.org> Date: Mon, 28 Sep 2026 11:25:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/3] selftests: kselftest: avoid cd - in runner To: Hajime Tazaki , linux-mm@kvack.org, liam@infradead.org, rbm@suse.com, akpm@linux-foundation.org, luto@amacapital.net, brendan.jackman@linux.dev, liuhangbin@gmail.com, corbet@lwn.net, kees@kernel.org, ljs@kernel.org, broonie@kernel.org, mhocko@suse.com, rppt@kernel.org, shuah@kernel.org, surenb@google.com, vbabka@kernel.org, wad@chromium.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-um@lists.infradead.org Cc: geert@linux-m68k.org, daniel@thingy.jp References: <20260926010819.604346-1-thehajime@gmail.com> <20260926010819.604346-2-thehajime@gmail.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org On 9/26/26 03:08, Hajime Tazaki wrote: > The kselftest runner currently uses `cd -` to restore its working > directory after running a test. > > This is not supported by the minimal BusyBox hush shell used by some > NOMMU targets. Store the original directory explicitly and restore it > with a quoted path instead. > > This also avoids printing the directory change performed by `cd -` and > handles paths containing whitespace correctly. > > Cc: Shuah Khan > Cc: Kees Cook > Cc: Andy Lutomirski > Cc: Will Drewry > Cc: Mark Brown > Cc: Brendan Jackman > Cc: Hangbin Liu > Cc: "Ricardo B. Marliere" > Cc: linux-kselftest@vger.kernel.org > Cc: linux-um@lists.infradead.org > Cc: linux-mm@kvack.org > Signed-off-by: Hajime Tazaki > --- Reviewed-by: David Hildenbrand (Arm) -- Cheers, David