[Very RFC 32/46] powernv/pci: Remove open-coded PE lookup in iommu_bypass_supported()
From: Oliver O'Halloran <oohall@gmail.com>
Date: 2019-11-20 02:34:19
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Signed-off-by: Oliver O'Halloran <oohall@gmail.com> --- arch/powerpc/platforms/powernv/pci-ioda.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 98d858999a2d..7e88de18ead6 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c@@ -1801,13 +1801,11 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct pci_dev *pdev, u64 dma_mask) { struct pnv_phb *phb = pci_bus_to_pnvhb(pdev->bus); - struct pci_dn *pdn = pci_get_pdn(pdev); - struct pnv_ioda_pe *pe; + struct pnv_ioda_pe *pe = pnv_ioda_get_pe(pdev); - if (WARN_ON(!pdn || pdn->pe_number == IODA_INVALID_PE)) + if (WARN_ON(!pe)) return false; - pe = &phb->ioda.pe_array[pdn->pe_number]; if (pe->tce_bypass_enabled) { u64 top = pe->tce_bypass_base + memblock_end_of_DRAM() - 1; if (dma_mask >= top)
--
2.21.0