linux-kernel - pci_get_dev_by_id() from interrupt handlers

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Message-ID: <20100420160423.GD31537@amd.com>
Date:	Tue, 20 Apr 2010 18:04:24 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
CC:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: pci_get_dev_by_id() from interrupt handlers

Hi Jesse,

I have a question regarding the warning in the pci_get_dev_by_id()
[search.c] function which triggers when called from interrupt context.
As far as I have seen this function should be save to be called in
atomic mode. Is there any other reason it should not be called in
interrupt handlers? I need to (indirectly) call this function for my
IOMMU driver to handle events from the IOMMU.

Thanks,
	Joerg

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