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From: Jonathan Cameron <jic23@kernel.org>
To: linux-iio@vger.kernel.org,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH v3 01/20] iio: adc: ad7266: Fix potential timestamp alignment issue.
Date: Sun, 13 Apr 2025 11:34:24 +0100	[thread overview]
Message-ID: <20250413103443.2420727-2-jic23@kernel.org> (raw)
In-Reply-To: <20250413103443.2420727-1-jic23@kernel.org>

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

On architectures where an s64 is only 32-bit aligned insufficient padding
would be left between the earlier elements and the timestamp. Use
aligned_s64 to enforce the correct placement and ensure the storage is
large enough.

Fixes: 54e018da3141 ("iio:ad7266: Mark transfer buffer as __be16") # aligned_s64 is much newer.
Reported-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

---
v3: Improved commit message (Andy)
---
 drivers/iio/adc/ad7266.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 18559757f908..7fef2727f89e 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -45,7 +45,7 @@ struct ad7266_state {
 	 */
 	struct {
 		__be16 sample[2];
-		s64 timestamp;
+		aligned_s64 timestamp;
 	} data __aligned(IIO_DMA_MINALIGN);
 };
 
-- 
2.49.0


  reply	other threads:[~2025-04-13 10:34 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-13 10:34 [PATCH v3 00/20] IIO: Introduce iio_push_to_buffers_with_ts() taking an input buffer length argument Jonathan Cameron
2025-04-13 10:34 ` Jonathan Cameron [this message]
2025-04-13 10:34 ` [PATCH v3 02/20] iio: adc: ad7768-1: Fix insufficient alignment of timestamp Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 03/20] iio: adc: dln2: Use aligned_s64 for timestamp Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 04/20] iio: accel: adxl355: Make timestamp 64-bit aligned using aligned_s64 Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 05/20] iio: introduced iio_push_to_buffers_with_ts() that takes a data_total_len argument Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 06/20] iio: dummy: Use a fixed structure to build up scan to push to buffers Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 07/20] iio: dummy: Switch to iio_push_to_buffers_with_ts() and provide size of storage Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 08/20] iio: adc: ti-ads131e08: Use new iio_push_to_buffers_with_ts() to provide length sanity check Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 09/20] iio: adc: Use iio_push_to_buffers_with_ts() to provide length for runtime checks Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 10/20] iio: accel: " Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 11/20] iio: accel: hid: " Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 12/20] iio: chemical: " Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 13/20] iio: temp: maxim-thermocouple: Fix potential lack of DMA safe buffer Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 14/20] iio: temperature: Use iio_push_to_buffers_with_ts() to provide length for runtime checks Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 15/20] iio: resolver: " Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 16/20] iio: proximity: irsd200: Use a struct for scan and iio_push_to_buffers_with_ts() Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 17/20] iio: proximity: Use iio_push_to_buffers_with_ts() to provide length for runtime checks Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 18/20] iio: pressure: zpa2326: Use aligned_s64 for the timestamp Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 19/20] iio: pressure: Use iio_push_to_buffers_with_ts() to provide length for runtime checks Jonathan Cameron
2025-04-13 10:34 ` [PATCH v3 20/20] iio: magnetometer: " Jonathan Cameron
2025-04-16 23:48 ` [PATCH v3 00/20] IIO: Introduce iio_push_to_buffers_with_ts() taking an input buffer length argument David Lechner
2025-04-18 14:38   ` Jonathan Cameron

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