From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E9D5530FF36; Mon, 28 Sep 2026 09:25:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790587548; cv=none; b=krVyvgNjQYABLU8/G8Nac+v/mXUKHNTNezu9+bppuq1QqjW76nPb1kGbTAinPLftAJYt3Ve8DdIHjW+ODpFsIihABKq6Um8vMqI6okfn+THv3igPGIWZILQwe2TN+eyuD8/69gpCHjG4kaqqw/XT/2IFtwbPuwKOgFQs3bnXpYE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790587548; c=relaxed/simple; bh=gLmI30IVTAMBPBa/hZalicUbckWvB9P4czWGWtkVe+I=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rMX22930vNPb3XcJIyhcUZjmdi3JjozVhhrraYktRiLtrQ8Bz1UneR0dF3ndyPi29PcvSieKWbQKq+/bks73hH/6Vv17p4ptDuTg5o9Diwg6hshlZibWgPhN2g41X9GioPkldsssHobK1aehdxQEYsIt8RotWW/pmTS+/taYLeE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=I9nCQsQr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="I9nCQsQr" 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 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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