linux-kernel - Re: [PATCH] iio: proximity: sx9500: use stack allocated buffer for scan data

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Message-ID: <aHE-8VDgQ7WuoA_y@smile.fi.intel.com>
Date: Fri, 11 Jul 2025 19:42:25 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: David Lechner <dlechner@...libre.com>
Cc: Jonathan Cameron <jic23@...nel.org>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: proximity: sx9500: use stack allocated buffer for
 scan data

On Fri, Jul 11, 2025 at 10:47:57AM -0500, David Lechner wrote:
> Use IIO_DECLARE_BUFFER_WITH_TS() to declare a stack allocated buffer
> in sx9500_trigger_handler(). Since the scan buffer isn't used outside
> of this function, it doesn't need to be in struct sx9500_data.
> 
> By always allocating enough space for the maximum number of channels,
> we can avoid having to reallocate the buffer each time buffered reads
> are enabled.

Ag ood one!

Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

-- 
With Best Regards,
Andy Shevchenko