linux-kernel - Re: [RFC PATCH v1] devres: align devres.data strictly only for devm

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Message-ID: <ae053dd1-c4e1-8489-3ab8-9f900de4eab4@free.fr>
Date:   Tue, 17 Dec 2019 17:17:53 +0100
From:   Marc Gonzalez <marc.w.gonzalez@...e.fr>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rjw@...ysocki.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Alexey Brodkin <alexey.brodkin@...opsys.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Tejun Heo <tj@...nel.org>, Mark Brown <broonie@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH v1] devres: align devres.data strictly only for
 devm_kmalloc()

On 17/12/2019 16:30, Marc Gonzalez wrote:

> +#define DEVM_KMALLOC_PADDING_SIZE \
> +	(ARCH_KMALLOC_MINALIGN - sizeof(struct devres) % ARCH_KMALLOC_MINALIGN)

Doh!

#define DEVM_KMALLOC_PADDING_SIZE \
  ((ARCH_KMALLOC_MINALIGN - sizeof(struct devres)) % ARCH_KMALLOC_MINALIGN)