linux-kernel - Re: [kbuild] drivers/regulator/bd718x7-regulator.c:531:8: warning: Excessive padding in 'struct bd718xx_regulator_data' (8 padding bytes, where 0 is optimal).

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Message-ID: <20210819152353.GN4177@sirena.org.uk>
Date:   Thu, 19 Aug 2021 16:23:53 +0100
From:   Mark Brown <broonie@...nel.org>
To:     kernel test robot <yujie.liu@...el.com>
Cc:     Matti Vaittinen <mazziesaccount@...il.com>,
        Cristian Marussi <cristian.marussi@....com>,
        clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [kbuild] drivers/regulator/bd718x7-regulator.c:531:8: warning:
 Excessive padding in 'struct bd718xx_regulator_data' (8 padding bytes, where
 0 is optimal).

On Thu, Aug 19, 2021 at 10:49:13PM +0800, kernel test robot wrote:

> Sorry for bothering, we'll ignore struct padding warnings next time.

I think the warnings are useful, it's just that they're not important
for all structs.  If the struct was getting allocated a lot it could be
pointing out an issue that makes a real difference.  I'm not sure it s
realistic for automation to figure it out for itself so it's better to
send them even if they get ignored a lot.

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