From nobody Fri Oct 24 10:15:09 2025 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 21686C2BB45 for ; Mon, 15 Aug 2022 21:42:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349633AbiHOVlh (ORCPT ); Mon, 15 Aug 2022 17:41:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244325AbiHOVhn (ORCPT ); Mon, 15 Aug 2022 17:37:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B9B9A625D; Mon, 15 Aug 2022 12:27:25 -0700 (PDT) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 54ED56102C; Mon, 15 Aug 2022 19:27:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 415B8C433D6; Mon, 15 Aug 2022 19:27:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660591644; bh=qC+fTR72lKNazJDRxV9oVf7A+NTEtgKs6MUoauoVF+U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JbahZjsL/YSn9Jiyu9ZnmMeC1OejoZLunMebMxszgRmtJ0loWsAswBlS3BlOMIj2E oY/JD21p8HhOLf4MSitLBDmvM9od7n7Y0lohmrDCbgAu7mczIiZbseOgXghLDa19Ek iGn+f3bO7J2MbwpqN0sr4MAngKm0+LOUYY2nsHU8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Sean Nyekjaer , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.18 0646/1095] iio: dac: ti-dac5571: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:45 +0200 Message-Id: <20220815180456.117078873@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit 58e22371539e01c742be5c30295f591a6a17e348 ] ____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_DMA_MINALIGN definition. Fixes: df38a4a72a3b ("iio: dac: add TI DAC5571 family support") Signed-off-by: Jonathan Cameron Cc: Sean Nyekjaer Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-63-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/dac/ti-dac5571.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c index 0b775f943db3..ba68ea1e3455 100644 --- a/drivers/iio/dac/ti-dac5571.c +++ b/drivers/iio/dac/ti-dac5571.c @@ -52,7 +52,7 @@ struct dac5571_data { struct dac5571_spec const *spec; int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val); int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn); - u8 buf[3] ____cacheline_aligned; + u8 buf[3] __aligned(IIO_DMA_MINALIGN); }; =20 #define DAC5571_POWERDOWN(mode) ((mode) + 1) --=20 2.35.1