linux-kernel - Re: [PATCH 1/2] media: pci: mg4b: use aligned

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Message-ID: <20250907103211.0b4b1ff6@jic23-huawei>
Date: Sun, 7 Sep 2025 10:32:11 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: David Lechner <dlechner@...libre.com>
Cc: Martin Tuma <martin.tuma@...iteqautomotive.com>, Mauro Carvalho Chehab
 <mchehab@...nel.org>, linux-iio@...r.kernel.org,
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] media: pci: mg4b: use aligned_s64

On Fri, 05 Sep 2025 14:06:19 -0500
David Lechner <dlechner@...libre.com> wrote:

> Use aligned_s64 for IIO timestamp field instead of explicit __align().
> This is the convention used throughout the IIO subsystem. No functional
> change.
> 
> Suggested-by: Jonathan Cameron <jic23@...nel.org>
> Closes: https://lore.kernel.org/linux-iio/20250724115610.011110fb@jic23-huawei/
> Signed-off-by: David Lechner <dlechner@...libre.com>

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>

> ---
>  drivers/media/pci/mgb4/mgb4_trigger.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/pci/mgb4/mgb4_trigger.c b/drivers/media/pci/mgb4/mgb4_trigger.c
> index d7dddc5c8728e81c6249b03a4cbf692da15a4ced..bed8bbd4bc595d1d131b9919c6f3b705e43ba3c4 100644
> --- a/drivers/media/pci/mgb4/mgb4_trigger.c
> +++ b/drivers/media/pci/mgb4/mgb4_trigger.c
> @@ -17,6 +17,7 @@
>  #include <linux/iio/triggered_buffer.h>
>  #include <linux/pci.h>
>  #include <linux/dma/amd_xdma.h>
> +#include <linux/types.h>
>  #include "mgb4_core.h"
>  #include "mgb4_trigger.h"
>  
> @@ -90,7 +91,7 @@ static irqreturn_t trigger_handler(int irq, void *p)
>  	struct trigger_data *st = iio_priv(indio_dev);
>  	struct {
>  		u32 data;
> -		s64 ts __aligned(8);
> +		aligned_s64 ts;
>  	} scan = { };
>  
>  	scan.data = mgb4_read_reg(&st->mgbdev->video, 0xA0);
>