From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: Remove pointless WARN_ON in DMA teardown
Date: Sun, 30 Oct 2016 14:26:49 +0000 [thread overview]
Message-ID: <20161030142649.ertqauqeaykxlpcf@localhost> (raw)
In-Reply-To: <74f5ae2ead8bb8fa9fabcf88b5962885b29eb2d5.1477505971.git.robin.murphy@arm.com>
On Wed, Oct 26, 2016 at 07:19:31PM +0100, Robin Murphy wrote:
> We expect arch_teardown_dma_ops() to be called very late in a device's
> life, after it has been removed from its bus, and thus after the IOMMU
> bus notifier has run. As such, even if this funny little check did make
> sense, it's unlikely to achieve what it thinks it's trying to do anyway.
> It's a residual trace of an earlier implementation which didn't belong
> here from the start; belatedly snuff it out.
>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Queued for 4.10. Thanks.
--
Catalin
prev parent reply other threads:[~2016-10-30 14:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-26 18:19 [PATCH] arm64: Remove pointless WARN_ON in DMA teardown Robin Murphy
2016-10-26 18:26 ` Will Deacon
2016-10-27 2:32 ` Sricharan
2016-10-30 14:26 ` Catalin Marinas [this message]
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