linux-kernel - Re: [PATCH v2 4/4] iio: adc: ltc2497: reorder ltc2497core

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Message-ID: <CAHp75Vdi8yjFoiDgtq_wSH4LWWzVdT2+Wm-S-W9Dh2jbrs+KLQ@mail.gmail.com>
Date: Wed, 13 Aug 2025 19:16:06 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Yusuf Alper Bilgin <y.alperbilgin@...il.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>, Michael Hennerich <Michael.Hennerich@...log.com>, 
	Jonathan Cameron <jic23@...nel.org>, David Lechner <dlechner@...libre.com>, 
	Nuno Sá <nuno.sa@...log.com>, 
	Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Liam Beguin <liambeguin@...il.com>, linux-iio@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] iio: adc: ltc2497: reorder ltc2497core_driverdata
 members to remove hole

On Wed, Aug 13, 2025 at 6:54 PM Yusuf Alper Bilgin
<y.alperbilgin@...il.com> wrote:
>
> Reorder struct members from largest to smallest to eliminate a 7-byte
> hole identified by the pahole tool, making the layout memory-optimal.

`pahole`

...

Cool, have you also checked the generated code with bloat-o-meter,
i.e. does the new object file is bigger/smaller/the same size as the
old one?

And make this patch with the one member shuffling from the previous one.


-- 
With Best Regards,
Andy Shevchenko