From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH URGENT] arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
Date: Fri, 23 Jan 2015 16:27:24 +0100 [thread overview]
Message-ID: <10179212.ryUUVC9zEx@wuerfel> (raw)
In-Reply-To: <1422022909-31044-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com>
On Friday 23 January 2015 16:21:49 Laurent Pinchart wrote:
> +/**
> + * arm_iommu_detach_device
> + * @dev: valid struct device pointer
> + *
> + * Detaches the provided device from a previously attached map.
> + * This voids the dma operations (dma_map_ops pointer)
> + */
> +void arm_iommu_detach_device(struct device *dev)
> +{
> + __arm_iommu_detach_device(dev);
> + set_dma_ops(dev, NULL);
> +}
> EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
>
>
Would this introduce a regression in the case where the device is
cache coherent and needs arm_coherent_dma_ops set?
Arnd
next prev parent reply other threads:[~2015-01-23 15:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-23 14:21 [PATCH URGENT] arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device() Laurent Pinchart
2015-01-23 15:27 ` Arnd Bergmann [this message]
2015-01-23 15:55 ` Laurent Pinchart
2015-01-23 17:00 ` Arnd Bergmann
2015-01-23 17:04 ` Will Deacon
2015-01-26 0:34 ` Heiko Stübner
2015-01-26 10:42 ` Joerg Roedel
2015-01-28 0:25 ` Heiko Stübner
2015-01-29 18:57 ` Olof Johansson
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