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| author | Gavin Shan | 2014-11-12 03:36:09 +0100 |
|---|---|---|
| committer | Michael Ellerman | 2014-11-14 07:24:24 +0100 |
| commit | 4773f76b61e5cbf41ad514978d9338d8a7ed49e1 (patch) | |
| tree | 71971485b82eae36d14aadbe5b2bca47ae076d31 /arch/powerpc/platforms | |
| parent | powerpc/powernv: Set PELTV for compound PEs (diff) | |
| download | kernel-qcow2-linux-4773f76b61e5cbf41ad514978d9338d8a7ed49e1.tar.gz kernel-qcow2-linux-4773f76b61e5cbf41ad514978d9338d8a7ed49e1.tar.xz kernel-qcow2-linux-4773f76b61e5cbf41ad514978d9338d8a7ed49e1.zip | |
powerpc/powernv: Simplify pnv_ioda_configure_pe()
Nested if statements are always bad and the patch avoids one by
checking PHB type and bail in advance if necessary.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index b96ba48462f7..762ca14228ea 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -684,26 +684,28 @@ static int pnv_ioda_configure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) phb->ioda.pe_rmap[rid] = pe->pe_number; /* Setup one MVTs on IODA1 */ - if (phb->type == PNV_PHB_IODA1) { - pe->mve_number = pe->pe_number; - rc = opal_pci_set_mve(phb->opal_id, pe->mve_number, - pe->pe_number); + if (phb->type != PNV_PHB_IODA1) { + pe->mve_number = 0; + goto out; + } + + pe->mve_number = pe->pe_number; + rc = opal_pci_set_mve(phb->opal_id, pe->mve_number, pe->pe_number); + if (rc != OPAL_SUCCESS) { + pe_err(pe, "OPAL error %ld setting up MVE %d\n", + rc, pe->mve_number); + pe->mve_number = -1; + } else { + rc = opal_pci_set_mve_enable(phb->opal_id, + pe->mve_number, OPAL_ENABLE_MVE); if (rc) { - pe_err(pe, "OPAL error %ld setting up MVE %d\n", + pe_err(pe, "OPAL error %ld enabling MVE %d\n", rc, pe->mve_number); pe->mve_number = -1; - } else { - rc = opal_pci_set_mve_enable(phb->opal_id, - pe->mve_number, OPAL_ENABLE_MVE); - if (rc) { - pe_err(pe, "OPAL error %ld enabling MVE %d\n", - rc, pe->mve_number); - pe->mve_number = -1; - } } - } else if (phb->type == PNV_PHB_IODA2) - pe->mve_number = 0; + } +out: return 0; } |