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Thu, 17 Apr 2025 09:53:46 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:c91b:eea3:7afd:2dee]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-2d5218248b7sm15812fac.47.2025.04.17.09.53.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Apr 2025 09:53:46 -0700 (PDT) From: David Lechner Date: Thu, 17 Apr 2025 11:52:38 -0500 Subject: [PATCH 6/8] iio: imu: adis16550: align buffers for timestamp MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250417-iio-more-timestamp-alignment-v1-6-eafac1e22318@baylibre.com> References: <20250417-iio-more-timestamp-alignment-v1-0-eafac1e22318@baylibre.com> In-Reply-To: <20250417-iio-more-timestamp-alignment-v1-0-eafac1e22318@baylibre.com> To: Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Matthias Brugger , AngeloGioacchino Del Regno , Lars-Peter Clausen , Michael Hennerich , Cosmin Tanislav , Tomasz Duszynski , Jean-Baptiste Maneyrol , Andreas Klinger , Petre Rodan Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1533; i=dlechner@baylibre.com; h=from:subject:message-id; bh=AFJNlLXsHh9BXOAhnBjIC5cwi3XBep4QhbIvlXS8quw=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoATH6e80MC8cebAk9/XyMJns4mNmoR4XlpZvAU HLW+5/PewyJATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaAEx+gAKCRDCzCAB/wGP wFaJB/9v53vyNRV637CJXAFuM6viMOUQbTVVQV74CaXFCutdFctnVJn/WI3JoemgSbu2oRTqbeG P3lnHkDd4rmKcUfkI0rWJONtRWzxU6HakQyxrZN8xnEXl0548q5KvocyrNyIb9spm3YQ/Nnd2YR bkeTkMJx65tgHhz+Hg4qeNM+aHJbclsUEjCsSEJ51tzYj03BY+t7dImKthXIXDXM5ooLzyGxEXl 07DAuQl46yL9zsKlOzapY1Q7zfeXubLjk4Ul5TdTlxlQIQoAoN+gky0z5FYdQPrYxvqtGSYJKPG GH+zlFi7Q9CWtB4jxfifTOh6JUQuRTcC2HW1QQKEQU6nD21b X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250417_095347_559169_C4C7F96E X-CRM114-Status: GOOD ( 13.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Align the buffers used with iio_push_to_buffers_with_timestamp() to ensure the s64 timestamp is aligned to 8 bytes. Signed-off-by: David Lechner --- drivers/iio/accel/bmc150-accel.h | 2 +- drivers/iio/imu/adis16550.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/accel/bmc150-accel.h b/drivers/iio/accel/bmc150-accel.h index 7a7baf52e5955b4cdaef86aeacf479459b76fe94..0079dc99b2c3fba927f73bb3ee8bdc0ea049833e 100644 --- a/drivers/iio/accel/bmc150-accel.h +++ b/drivers/iio/accel/bmc150-accel.h @@ -63,7 +63,7 @@ struct bmc150_accel_data { struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS]; struct mutex mutex; u8 fifo_mode, watermark; - s16 buffer[8]; + s16 buffer[8] __aligned(8); /* * Ensure there is sufficient space and correct alignment for * the timestamp if enabled diff --git a/drivers/iio/imu/adis16550.c b/drivers/iio/imu/adis16550.c index b14ea8937c7f5a2123e4097dc5b8260492044d1b..28f0dbd0226cbea67bc6c87d892f7812f21e9304 100644 --- a/drivers/iio/imu/adis16550.c +++ b/drivers/iio/imu/adis16550.c @@ -836,7 +836,7 @@ static irqreturn_t adis16550_trigger_handler(int irq, void *p) u16 dummy; bool valid; struct iio_poll_func *pf = p; - __be32 data[ADIS16550_MAX_SCAN_DATA]; + __be32 data[ADIS16550_MAX_SCAN_DATA] __aligned(8); struct iio_dev *indio_dev = pf->indio_dev; struct adis16550 *st = iio_priv(indio_dev); struct adis *adis = iio_device_get_drvdata(indio_dev); -- 2.43.0