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linux/include/linux/dmar.h
Joerg Roedel 4bc8c44b31 iommu/vt-d: Don't register bus-notifier under dmar_global_lock 
commit ec154bf56b upstream.

The notifier function will take the dmar_global_lock too, so
lockdep complains about inverse locking order when the
notifier is registered under the dmar_global_lock.

Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Fixes: 59ce0515cd ('iommu/vt-d: Update DRHD/RMRR/ATSR device scope caches when PCI hotplug happens')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2018-02-13 18:42:04 +00:00

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