This is a note to let you know that I've just added the patch titled
powerpc/powernv: Update dev->dma_mask in pci_set_dma_mask() path
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-powernv-update-dev-dma_mask-in-pci_set_dma_mask-path.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a32305bf90a2ae0e6a9a93370c7616565f75e15a Mon Sep 17 00:00:00 2001
From: Brian W Hart <hartb@xxxxxxxxxxxxxxxxxx>
Date: Thu, 31 Jul 2014 14:24:37 -0500
Subject: powerpc/powernv: Update dev->dma_mask in pci_set_dma_mask() path
From: Brian W Hart <hartb@xxxxxxxxxxxxxxxxxx>
commit a32305bf90a2ae0e6a9a93370c7616565f75e15a upstream.
powerpc defines various machine-specific routines for handling
pci_set_dma_mask(). The routines for machine "PowerNV" may neglect
to set dev->dma_mask. This could confuse anyone (e.g. drivers) that
consult dev->dma_mask to find the current mask. Set the dma_mask in
the PowerNV leaf routine.
Signed-off-by: Brian W. Hart <hartb@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/platforms/powernv/pci-ioda.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -491,6 +491,7 @@ static int pnv_pci_ioda_dma_set_mask(str
set_dma_ops(&pdev->dev, &dma_iommu_ops);
set_iommu_table_base(&pdev->dev, &pe->tce32_table);
}
+ *pdev->dev.dma_mask = dma_mask;
return 0;
}
Patches currently in stable-queue which might be from hartb@xxxxxxxxxxxxxxxxxx are
queue-3.16/powerpc-powernv-update-dev-dma_mask-in-pci_set_dma_mask-path.patch
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