From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (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 575133C276E for ; Mon, 12 Oct 2026 10:42:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791801747; cv=none; b=HYHNiLxjCTxC4weKOZ3IjV0fM+xpMQph6lJwuP7EVxo5Lo4TYHY8k0P1z7ZXiua9O/3XqU+trlQQhGKNZ2ZSWl+amhAI4/+iiEVqFrtGdh8JpwVPrL4z7I5fzj8YXgQxeou6M8npebZ+oZccEZs2YUTFeNbwvAlPp5M+LfdMqxk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791801747; c=relaxed/simple; bh=28Yx66NjZP5xzk20OUiMpkRXEDNf1lueGuVxCuGpePg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YjGzgPRTfG+qrw1q1XpMnMBHBLCK9NpKZRozoYXoRlx+rtguZqKs2CP6azEp5cQRojXpkBnarvp1dF/yEJtuvgSIBQToYIwxAdrYNxy0lwebnEElZBa7i10fb3tTlNERt3S1i8GsTmgTtFX5ee4Ip8Irjr7U62KCuEZHKCIJV9Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=Qy9VvlWD; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="Qy9VvlWD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=28Yx 66NjZP5xzk20OUiMpkRXEDNf1lueGuVxCuGpePg=; b=Qy9VvlWDm8isC1bObrWG SA7+vRows5/Po3Gpp7oCU1OyJJDVRDUHSEDSphpqy2pMEtDkDLQ3PkJGAag4/rNH KtKJZQoJcJHKZ0cMZJyrz8JGv99owFdXmjMiE7wn8A+T2qmC6nOFu+tOyZCCY0cC lQ+aXamKl60IJotDtSOCptXGkyJ6DnQog2+ZmiA1xH+K88KDCfqAJPW21HSYMn3f p/ZXl46Poq7oOWjB+XuCTSFqh3EuZMzh0yjqoEcPyw9Sko4XzHnsvCzafH38xT/E x8RP+cAXUgdM4ExFblAqpLVaRdwIiNeoKjjwhegS2ANhXNKLdT6y6elLXEIjf3zx sA== Received: (qmail 2216045 invoked from network); 12 Oct 2026 12:42:12 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 12 Oct 2026 12:42:12 +0200 X-UD-Smtp-Session: l3s3148p1@WRTEWaJdzK4ujnuu Date: Mon, 12 Oct 2026 12:42:12 +0200 From: Wolfram Sang To: dmaengine@vger.kernel.org Cc: Basavaraj Natikar , Dave Jiang , Frank Li , Kelvin Cao , Logan Gunthorpe , Vinicius Costa Gomes , Vinod Koul Subject: Re: [PATCH 0/8] dmaengine: unmap descriptor before completing cookie Message-ID: References: <20261010124348.19055-1-wsa+renesas@sang-engineering.com> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="qReZEPt7jmvXPKts" Content-Disposition: inline In-Reply-To: <20261010124348.19055-1-wsa+renesas@sang-engineering.com> --qReZEPt7jmvXPKts Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > We found out that we need to unmap descriptors before completing a > cookie [1]. Fix the drivers for which this is a no-brainer and just > switches those two function calls. Okay, according to Sashiko, patches 1+5+6+7 are no no-brainers but need a deeper analysis which I am not able to provide. So, we could drop this series entirely because it seems more trustworthy to let people with actual hardware fix these issues. Maybe a FIXME could be added instead to these drivers. Or, we can apply at least patches 2+3+4+8 where Sashiko found no issues. I tend to use the first option but am open to whatever maintainers think about it. --qReZEPt7jmvXPKts Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmrMuYQACgkQFA3kzBSg KbboYhAAsC1OwNrLEWb964Z1mC5KIzmafkgw2xWyV6npkoU2Odw9cSO0QrvCgIOA fSUXs7g4iuntwNPX2e4Al2GsBoyu1E21mIwb2Hn8iK/jfpMD6qydtpA0+WBOfaVO 1KjCuCBbrSavdps5XTq0EVac9558OV6RPMbufGGwrYRw0C09euLfhrTJ4Oq89lpe mgnTyeLQjNcU9/kKuE4sMPwus3AKUKYPrNt2kw7JQuKsfpTBLxgC7C2R6s4QbEQm /acygK5fuXsrXvWu1CSwZyKNnkcIidF3OH4+2qrgU6dWCHk7BlTwUDKUuwckgcfg 562d9IpTLMejyAqH6/Vuc6nYcj8gwo1TR5uriRo/MzXqddSfAcaS6jGvTtn7ScFk 4Gw0h43g8B3vgEwP3CK7MdELlE9W0L3d5cwzpwIEpJTtksz9kr59J2B9dhrIA99x 32ep3xqbUhqUPF/t6Aw+JPweOPA3hrPQ/4UeZVoN1BxiWPpkI004Oz3Bse2pZNB0 1r3ow70SGj8HCafOZRn0OM8Im9RmOiDo4L75KbhIODwFHEc4GVhNQ6RR1P5CQkmt LmK4GSde/Lfjob0y5xQE7lR/RqjxEn72JTMycR26pW3SxyDzhRQq0aZEHw7MznBA hPzIIutYe/0jlrg00SJO/UaMhuJsQGMDBTjOgA9xy4q/PS11bvE= =V3D/ -----END PGP SIGNATURE----- --qReZEPt7jmvXPKts--