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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C320CC4332F for ; Thu, 1 Dec 2022 23:13:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229822AbiLAXNO (ORCPT ); Thu, 1 Dec 2022 18:13:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40702 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230462AbiLAXMz (ORCPT ); Thu, 1 Dec 2022 18:12:55 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A22B2125A for ; Thu, 1 Dec 2022 15:12:52 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id EE8D2CE1DD9 for ; Thu, 1 Dec 2022 23:12:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3F5DC433D7; Thu, 1 Dec 2022 23:12:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669936369; bh=QJnYNYX/FxCDTAHwJ+5FDEozc6q/VwDgsRtOcGOkXec=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NFXCLPaXTISK7IxzWk/cNFHyyQuKBnABdGJnQ21Ku6lE9PDKWYX6DDwuJzzO24LTv eFoAksT9HhhntZcqjAt2tRNUyGi57WHOWzSNWLao1/l+eEx3t+hgK5AO24JNDxWiAu ewE6r7zSgvSK3SJ/vZ6d4zvGT7aTTkDSnGx7BMLm+1tcnuyeF4aUwxUxqvXCRTy8ZK y1bvYl6dHTPLYaF6K8QzIpZbP/T3j59NGcMlbQMKLwDJeI0vrx9TW+nyAG5dOjGUHL soff6oogWI45jnIki0Jp/Izop4oZMlN8JrR7czlDMoQOp2LQgrm4iY4kmeMfFZ5V1D OmoQ2dOdJOM0g== Date: Fri, 2 Dec 2022 00:12:46 +0100 From: Wolfram Sang To: Andrew Lunn Cc: linux-i2c@vger.kernel.org, Oleksij Rempel , kernel@pengutronix.de, Shawn Guo , Sascha Hauer , Fabio Estevam Subject: Re: [PATCH] i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set Message-ID: Mail-Followup-To: Wolfram Sang , Andrew Lunn , linux-i2c@vger.kernel.org, Oleksij Rempel , kernel@pengutronix.de, Shawn Guo , Sascha Hauer , Fabio Estevam References: <20221109235902.468723-1-andrew@lunn.ch> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="DwiuW7TBOOfaRXxL" Content-Disposition: inline In-Reply-To: <20221109235902.468723-1-andrew@lunn.ch> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org --DwiuW7TBOOfaRXxL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 10, 2022 at 12:59:02AM +0100, Andrew Lunn wrote: > Recent changes to the DMA code has resulting in the IMX driver failing > I2C transfers when the buffer has been vmalloc. Only perform DMA > transfers if the message has the I2C_M_DMA_SAFE flag set, indicating > the client is providing a buffer which is DMA safe. >=20 > This is a minimal fix for stable. The I2C core provides helpers to > allocate a bounce buffer. For a fuller fix the master should make use > of these helpers. >=20 > Fixes: 4544b9f25e70 ("dma-mapping: Add vmap checks to dma_map_single()") > Signed-off-by: Andrew Lunn Applied to for-current, thanks! --DwiuW7TBOOfaRXxL Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmOJNOkACgkQFA3kzBSg KbY7jxAAh4XE3cPYZ02lsRPwyPNZuQLZspMld5zkoSQsPy91luwXP8tfeueUXBdw DhcJ+ae6BBxNFj7dsYKjCkEQ3gKQ4tw/2kMUOpJXAxCRCrX1vdjM0yF6NLY9BzQb XtrkxhWjj9TmHFrBT/YNuTJDR5Vyp1KaOjPloMuzaTNmMTTF1+tpBhvZ96PlZD08 6UgKbf1ALYVQUIyLHOYWkMKsbF6E2ZEcVgNnPtOQcFhu5GIEkBhIj3j+5tS4ln+0 XxiB9n2GlpIQ4lDpZV3y9KwwA6GA3NnYd+76UU7GF2yYMuwJSB7RL4aRU85v7bxR 4fbNwO0p5FsqBtvjcT9w0IDBzTfa3youNhjJokigUumvTzcjqBUB8qGF9kbBIu6r tCgVygrt/ILcuip3lMKIRx4BQHN7wPvG/OASnQyN4LKBYfTV8vJ88y+Ke7zU6OGc LWuyjWWABtXzPlguxH/RFU6/DA0u8Us9bHdlp2ww6msTLewY+mB7g2+HOiHcp7zk Uh/FXizCcU07NuBr9eXAETa+gLwtqTwxlSyf+OaArg5FNJ3q43BQKZM0zxSo7gVp qSCjsHtRXBebLzhrUV5YUM3aB7zT6Sbxmxxr9Hu71gA56FgxTeokiC0x8EjTyu5J xwOfDdISWmL2z/ynXg4OeC06UIkkRETyQcQZSLAFrnx9P64vTBU= =txrH -----END PGP SIGNATURE----- --DwiuW7TBOOfaRXxL--