From 3083593700ddf653f765031189805fef56959281 Mon Sep 17 00:00:00 2001 From: Russell Currey Date: Wed, 16 Nov 2016 12:12:26 +1100 Subject: [PATCH] powerpc/powernv: Don't warn on PE init if unfreeze is unsupported commit d4791db527bf397c84c9956c3ece9692ed5322ac upstream. Whenever a PE is initialised in powernv, opal_pci_eeh_freeze_clear() is called. This is to remove any existing freeze, and has no negative side effects if the PE is already in an unfrozen state. On PHB backends that don't support this operation and return OPAL_UNSUPPORTED, this creates a scary and misleading warning message. Skip the warning message on init if OPAL_UNSUPPORTED is returned. As far as I'm aware, this currently only affects NPUs. Fixes: 313483d ("powerpc/powernv: Unfreeze PE on allocation") Signed-off-by: Russell Currey Acked-by: Gavin Shan Reviewed-by: Andrew Donnellan Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/platforms/powernv/pci-ioda.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index d4b33dd2d9e7..dcdfee0cd4f2 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -145,7 +145,7 @@ static struct pnv_ioda_pe *pnv_ioda_init_pe(struct pnv_phb *phb, int pe_no) */ rc = opal_pci_eeh_freeze_clear(phb->opal_id, pe_no, OPAL_EEH_ACTION_CLEAR_FREEZE_ALL); - if (rc != OPAL_SUCCESS) + if (rc != OPAL_SUCCESS && rc != OPAL_UNSUPPORTED) pr_warn("%s: Error %lld unfreezing PHB#%d-PE#%d\n", __func__, rc, phb->hose->global_number, pe_no); -- 2.39.5