powerpc/powernv: Fix endless reporting frozen PE
Once one specific PE has been marked as EEH_PE_ISOLATED, it's in
the middile of recovery or removed permenently. We needn't report
the frozen PE again. Otherwise, we will have endless reporting
same frozen PE.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 35ec394..3a755b5 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -745,6 +745,11 @@
* If we can't find the corresponding PE, the
* PEEV / PEST would be messy. So we force an
* fenced PHB so that it can be recovered.
+ *
+ * If the PE has been marked as isolated, that
+ * should have been removed permanently or in
+ * progress with recovery. We needn't report
+ * it again.
*/
if (ioda_eeh_get_pe(hose, frozen_pe_no, pe)) {
*pe = phb_pe;
@@ -753,6 +758,8 @@
hose->global_number,
frozen_pe_no);
ret = EEH_NEXT_ERR_FENCED_PHB;
+ } else if ((*pe)->state & EEH_PE_ISOLATED) {
+ ret = EEH_NEXT_ERR_NONE;
} else {
pr_err("EEH: Frozen PE#%x on PHB#%x detected\n",
(*pe)->addr, (*pe)->phb->global_number);
