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authorRobin Murphy <robin.murphy@arm.com>2016-02-09 11:04:45 +0000
committerRob Herring <robh@kernel.org>2016-02-11 16:51:41 -0600
commit5d589d81acf974d23af98044aac56c6339d659f8 (patch)
treed41d421c966a902b2747006c0c7cebfe21bf4f8d /scripts/bloat-o-meter
parent388f7b1d6e8ca06762e2454d28d6c3c55ad0fe95 (diff)
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of/irq: Fix msi-map calculation for nonzero rid-base
The existing msi-map code is fine for shifting the entire RID space upwards, but attempting finer-grained remapping reveals a bug. It turns out that we are mistakenly treating the msi-base part as an offset, not as a new base to remap onto, so things get squiffy when rid-base is nonzero. Fix this, and at the same time add a sanity check against having msi-map-mask clash with a nonzero rid-base, as that's another thing one can easily get wrong. CC: <stable@vger.kernel.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Tested-by: Stuart Yoder <stuart.yoder@nxp.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: Rob Herring <robh@kernel.org>
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