linux-kernel - Re: [PATCH V5 3/5] iommu/dma-iommu: Handle deferred devices

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Message-ID: <20190820094306.GC24154@infradead.org>
Date:   Tue, 20 Aug 2019 02:43:06 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Tom Murphy <murphyt7@....ie>
Cc:     iommu@...ts.linux-foundation.org, Heiko Stuebner <heiko@...ech.de>,
        virtualization@...ts.linux-foundation.org,
        linux-tegra@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>,
        Will Deacon <will@...nel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        linux-samsung-soc@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-rockchip@...ts.infradead.org, Andy Gross <agross@...nel.org>,
        Gerald Schaefer <gerald.schaefer@...ibm.com>,
        linux-s390@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        David Woodhouse <dwmw2@...radead.org>,
        linux-kernel@...r.kernel.org, Kukjin Kim <kgene@...nel.org>,
        Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH V5 3/5] iommu/dma-iommu: Handle deferred devices

> +static int handle_deferred_device(struct device *dev,
> +	struct iommu_domain *domain)

Nitick: we usually use double tab indents (or indents to after
the opening brace) for multi-line prototyped.

> +	if (!is_kdump_kernel())
> +		return 0;
> +
> +	if (unlikely(ops->is_attach_deferred &&
> +		ops->is_attach_deferred(domain, dev)))
> +		return iommu_attach_device(domain, dev);

And for multi-line conditionals we also use two-tab indents.