diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2018-12-19 19:52:23 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-21 16:20:46 +1100 |
| commit | 847e6563aa8c6e335397b821b215ac4313580638 (patch) | |
| tree | a1a3ade68add9295e1610d4d0fdd9d2334c1cf96 /arch/powerpc/platforms/powernv/pci-ioda.c | |
| parent | 5eada8a3f087df74af1c2797770a3e2249374fe1 (diff) | |
powerpc/powernv: Reference iommu_table while it is linked to a group
The iommu_table pointer stored in iommu_table_group may get stale
by accident, this adds referencing and removes a redundant comment
about this.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 59db3b0f23d3..62f45546e66e 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -2714,10 +2714,6 @@ static long pnv_pci_ioda2_npu_unset_window( static void pnv_ioda2_npu_take_ownership(struct iommu_table_group *table_group) { - /* - * Detach NPU first as pnv_ioda2_take_ownership() will destroy - * the iommu_table if 32bit DMA is enabled. - */ pnv_npu_take_ownership(gpe_table_group_to_npe(table_group)); pnv_ioda2_take_ownership(table_group); } |