Re: [PATCH v3] devres: Explicitly align datai[] to 64-bit

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To: Mark Rutland <mark.rutland@xxxxxxx>
Subject: Re: [PATCH v3] devres: Explicitly align datai[] to 64-bit
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Mon, 9 Jul 2018 17:34:27 +0200
Cc: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "linux-snps-arc@xxxxxxxxxxxxxxxxxxx" <linux-snps-arc@xxxxxxxxxxxxxxxxxxx>, "stable@xxxxxxxxxxxxxxx" <stable@xxxxxxxxxxxxxxx>, "greg@xxxxxxxxx" <greg@xxxxxxxxx>, "will.deacon@xxxxxxx" <will.deacon@xxxxxxx>, "gregkh@xxxxxxxxxxxxxxxxxxx" <gregkh@xxxxxxxxxxxxxxxxxxx>, "David.Laight@xxxxxxxxxx" <David.Laight@xxxxxxxxxx>, "linux-arch@xxxxxxxxxxxxxxx" <linux-arch@xxxxxxxxxxxxxxx>, "geert@xxxxxxxxxxxxxx" <geert@xxxxxxxxxxxxxx>
In-reply-to: <20180709152958.565weccfaktqauef@lakrids.cambridge.arm.com>
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On Mon, Jul 09, 2018 at 04:29:58PM +0100, Mark Rutland wrote:
> Shouldn't that be 8? AFAICT, __alignof__(unsigned long long) is 8 on
> x86_32:

Curious, I wonder why we put that align in atomic64_32 then.

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