From: Jonathan Cameron <jic23@kernel.org>
To: linux-iio@vger.kernel.org
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH 01/11] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
Date: Sat, 1 May 2021 18:13:42 +0100 [thread overview]
Message-ID: <20210501171352.512953-2-jic23@kernel.org> (raw)
In-Reply-To: <20210501171352.512953-1-jic23@kernel.org>
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
---
drivers/iio/adc/at91-sama5d2_adc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index a7826f097b95..d356b515df09 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -403,7 +403,8 @@ struct at91_adc_state {
struct at91_adc_dma dma_st;
struct at91_adc_touch touch_st;
struct iio_dev *indio_dev;
- u16 buffer[AT91_BUFFER_MAX_HWORDS];
+ /* Ensure naturally aligned timestamp */
+ u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8);
/*
* lock to prevent concurrent 'single conversion' requests through
* sysfs.
--
2.31.1
next prev parent reply other threads:[~2021-05-01 17:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-01 17:13 [PATCH 00/11] IIO: Alignment fixes part 3 - __aligned(8) used to ensure alignment Jonathan Cameron
2021-05-01 17:13 ` Jonathan Cameron [this message]
2021-05-26 17:23 ` [PATCH 01/11] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Eugen.Hristev
2021-05-27 8:48 ` Jonathan Cameron
2021-05-01 17:13 ` [PATCH 02/11] iio: adc: hx711: " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 03/11] iio: adc: mxs-lradc: " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 04/11] iio: adc: ti-ads8688: Fix alignment of buffer " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 05/11] iio: chemical: atlas: Fix buffer alignment " Jonathan Cameron
2021-05-06 6:44 ` Matt Ranostay
2021-05-13 17:59 ` Jonathan Cameron
2021-05-01 17:13 ` [PATCH 06/11] iio: cros_ec_sensors: Fix alignment of buffer " Jonathan Cameron
2021-05-01 23:58 ` Gwendal Grignou
2021-05-13 18:03 ` Jonathan Cameron
2021-05-01 17:13 ` [PATCH 07/11] iio: potentiostat: lmp91000: " Jonathan Cameron
2021-05-06 6:44 ` Matt Ranostay
2021-05-13 18:04 ` Jonathan Cameron
2021-05-01 17:13 ` [PATCH 08/11] iio: magn: rm3100: " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 09/11] iio: light: vcnl4000: Fix buffer alignment " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 10/11] iio: light: vcnl4035: " Jonathan Cameron
2021-05-01 17:13 ` [PATCH 11/11] iio: prox: isl29501: " Jonathan Cameron
2021-05-13 17:58 ` [PATCH 00/11] IIO: Alignment fixes part 3 - __aligned(8) used to ensure alignment Jonathan Cameron
2021-05-26 17:09 ` Jonathan Cameron
2021-05-26 17:17 ` Andy Shevchenko
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