From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) (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 C652B217F30 for ; Fri, 25 Oct 2024 22:24:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.18.0.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729895103; cv=none; b=Co7MjiWK0vbTorXsS64hL+PaZe8gYTyPrEjZo8Mdm5jJrdnMBdcOlaaFVv5BHcyuFTCUaN4IdCrvUfvgkeei8Ljw68FC+INsq1RSrViomDwhDlZSx7ccCzf6J4vkz1jtQD39l9biB0rnmUUuAas5j7E66SOxDPerIosj+rUQJ1k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729895103; c=relaxed/simple; bh=ptD6OH0MGHW4Shh1DWEeV0k1mRSqYyHLG4EXa+TSjbE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=iHaXnnmZt1zzOBwoq5nlGtjYwOXcVFFj8cHfg0CzdSaTfXusGIAjSOUIy/vcxIDpuSCjQZxT8BiesftTaPWueD+GRuDibzjQhNYzwlIDewfs5v+HZxKO7F5q3qpZ530OV/3tJbqYzGfsuMVB+45zC/9uHCa5s5bnKMJxPkSHGrw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org; spf=pass smtp.mailfrom=nefkom.net; arc=none smtp.client-ip=212.18.0.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nefkom.net Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4XZy5M1pvrz1sCHF; Sat, 26 Oct 2024 00:24:54 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 4XZy5L4yDTz1rZyt; Sat, 26 Oct 2024 00:24:54 +0200 (CEST) X-Virus-Scanned: amavis at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavis, port 10024) with ESMTP id KbN1Itb8ZKrD; Sat, 26 Oct 2024 00:24:53 +0200 (CEST) X-Auth-Info: lGu6kyo7QS0ahTaUFUYE2+yaywMCyxysmyYYlG4UrCJuXrfHlm8lf6L4HdAWgwSK Received: from igel.home (aftr-82-135-83-33.dynamic.mnet-online.de [82.135.83.33]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sat, 26 Oct 2024 00:24:53 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id A1FF42C1827; Sat, 26 Oct 2024 00:24:53 +0200 (CEST) From: Andreas Schwab To: Thorsten Glaser Cc: John Paul Adrian Glaubitz , Arnd Bergmann , linux-m68k , debian-68k , James Le Cuirot , Sam James , Geert Uytterhoeven Subject: Re: Plan needed for switching m68k to 32-bit alignment In-Reply-To: <97b0a5de-885f-ffde-3739-f7f29b16d3bd@mirbsd.de> (Thorsten Glaser's message of "Fri, 25 Oct 2024 23:38:45 +0200 (CEST)") References: <3a5e171bf42e5273eb8235cba04e8328b19c2ca4.camel@physik.fu-berlin.de> <383faec7-8987-4680-920d-8f802e1bea34@app.fastmail.com> <97b0a5de-885f-ffde-3739-f7f29b16d3bd@mirbsd.de> X-Yow: Yow! Are you the self-frying president? Date: Sat, 26 Oct 2024 00:24:53 +0200 Message-ID: <874j4z253e.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Okt 25 2024, Thorsten Glaser wrote: > Question is, do we need a kernel change for this at all? > Is there anything in the kernel/userland interface that > gets affected by this, or do these APIs use sufficient > explicit padding? Has anyone looked at this? Already basic things like struct stat64 will break. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."