From patchwork Sun May 8 17:56:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842605 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 7426BC4332F for ; Sun, 8 May 2022 19:14:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229486AbiEHTR4 (ORCPT ); Sun, 8 May 2022 15:17:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40452 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236510AbiEHSBU (ORCPT ); Sun, 8 May 2022 14:01:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17357558C for ; Sun, 8 May 2022 10:57:30 -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 A75CF6101B for ; Sun, 8 May 2022 17:57:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EEA5CC385B0; Sun, 8 May 2022 17:57:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032649; bh=oOqZwvXG+AVa7YNfCyDXbPj6rTqLHSVxqQ4PaLRKfnA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zfadol27mjOqHp6CMsvqVlm74RLVH1bGMtQgQS5GyuqFiHM02j0n7QdlO1LQpgJAk AoHYCesGGY2t2VUKIJltlL73s0bEVGD0e6rw7aE60SdOp4m/Squzo5WDV9x+txabV/ thUiJed1DuzoeyxbsuoaikTsEjP48Pfrd09Mt5NtkB11do0DZUg1zsYVI5bjhN+oow KYIdmFRRgy8C4u4iuJtO/k2i6TqZIoiEO+7C0rgO40fLBDZ39531atgCRfTB8AM7GU 8GEfB2Wng9VPtX+FXYTXxn6lHPi+fmOCXO45T3i4ieAXBadjBUNqmRwvq2RN/M06di zN4ceN9RUIciQ== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Alexandru Lazar , Akinobu Mita , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , Matt Ranostay , Matt Ranostay , Michael Hennerich , Michael Welling , Mugilraj Dhavachelvan , Navin Sankar Velliangiri , =?utf-8?q?Nuno_S=C3=A1?= , Paul Cercueil , Phil Reid , Puranjay Mohan , Ricardo Ribalda , Robert Jones , Rui Miguel Silva , Sean Nyekjaer , Tomas Melin , Tomislav Denis , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Jonathan Cameron Subject: [PATCH v2 67/92] iio: frequency: adf4371: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:47 +0100 Message-Id: <20220508175712.647246-68-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220508175712.647246-1-jic23@kernel.org> References: <20220508175712.647246-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron ____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: 7f699bd14913 ("iio: frequency: adf4371: Add support for ADF4371 PLL") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/frequency/adf4371.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c index ecd5e18995ad..135c8cedc33d 100644 --- a/drivers/iio/frequency/adf4371.c +++ b/drivers/iio/frequency/adf4371.c @@ -175,7 +175,7 @@ struct adf4371_state { unsigned int mod2; unsigned int rf_div_sel; unsigned int ref_div_factor; - u8 buf[10] ____cacheline_aligned; + u8 buf[10] __aligned(IIO_DMA_MINALIGN); }; static unsigned long long adf4371_pll_fract_n_get_rate(struct adf4371_state *st,