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

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Message-ID: <20180709151447.GW2476@hirez.programming.kicks-ass.net>
Date:   Mon, 9 Jul 2018 17:14:47 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     David Laight <David.Laight@...LAB.COM>
Cc:     Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "greg@...ah.com" <greg@...ah.com>,
        "will.deacon@....com" <will.deacon@....com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        "geert@...ux-m68k.org" <geert@...ux-m68k.org>
Subject: Re: [PATCH v3] devres: Explicitly align datai[] to 64-bit

On Mon, Jul 09, 2018 at 03:02:08PM +0000, David Laight wrote:

> Mostly related to the fpu - probably including the fpu save area.

So for the FPU save area in particular I know we play some horrific
games. As to the rest I really dont know.

I wouldn't mind it being changed, but from a cursory look, I couldn't
see it being anything other than 4 for x86_32.