From patchwork Sat May 1 17:13:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12234925 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB042C433ED for ; Sat, 1 May 2021 17:15:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFCF66157E for ; Sat, 1 May 2021 17:15:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231556AbhEARQZ (ORCPT ); Sat, 1 May 2021 13:16:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:54104 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231566AbhEARQZ (ORCPT ); Sat, 1 May 2021 13:16:25 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D2E2F61494; Sat, 1 May 2021 17:15:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619889335; bh=89oLJqJwIQXRp1mCCkHQbbgvhA/qytOulqQlmRBlKcQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YfjrEiay9E8n8Mj5dhuPjeg4vqvSlNzI4/TsQQsVuP4mC96Ou4yi+oGQOetJ1BiZi DBPd6am4Irmc1aQHu1mXRj1e8THTjy7Bxrak08SD40ofu/ybkRpg1XXmE1BBm3S3HC H5WNdayfQvTvuaMAehPQuQsf9vyCpUeqtRE6HLAMfL30OwZ1Q4iAQw+JHkegIAk72G 32zVVI7oh0ar8x3ELXjTe6ZLk0F0xy8ILY+yaslVlge8IDjbU7YlYh8O0q9gzOlPS3 37NuF2vIJZQz7qReXRkGnvwHGk9AmiJ3X9Kg77dhBi9+78MmAmPvSYoWdQzWgfmLQ2 yMLOm5/n3Ip3w== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Jonathan Cameron , Song Qiang Subject: [PATCH 08/11] iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() Date: Sat, 1 May 2021 18:13:49 +0100 Message-Id: <20210501171352.512953-9-jic23@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210501171352.512953-1-jic23@kernel.org> References: <20210501171352.512953-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron Add __aligned(8) to ensure the buffer passed to iio_push_to_buffers_with_timestamp() is suitable for the naturally aligned timestamp that will be inserted. Here an explicit structure is not used, because this buffer is used in a non-trivial way for data repacking. Fixes: 121354b2eceb ("iio: magnetometer: Add driver support for PNI RM3100") Signed-off-by: Jonathan Cameron Cc: Song Qiang --- drivers/iio/magnetometer/rm3100-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/magnetometer/rm3100-core.c b/drivers/iio/magnetometer/rm3100-core.c index dd811da9cb6d..934da20781bb 100644 --- a/drivers/iio/magnetometer/rm3100-core.c +++ b/drivers/iio/magnetometer/rm3100-core.c @@ -78,7 +78,8 @@ struct rm3100_data { bool use_interrupt; int conversion_time; int scale; - u8 buffer[RM3100_SCAN_BYTES]; + /* Ensure naturally aligned timestamp */ + u8 buffer[RM3100_SCAN_BYTES] __aligned(8); struct iio_trigger *drdy_trig; /*