From 4d8e325d9df32ef00136d7885f0c65bf124edd22 Mon Sep 17 00:00:00 2001 From: Sam Bobroff Date: Thu, 29 Nov 2018 14:16:40 +1100 Subject: [PATCH] powerpc/eeh: Add include_passed to eeh_clear_pe_frozen_state() Add a parameter to eeh_clear_pe_frozen_state() that allows passed-through PEs to be excluded. Update callers to always pass true so that there is no change in behaviour. This is to prepare for follow-up work for passed-through devices. Signed-off-by: Sam Bobroff Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/eeh_driver.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 997aba0..91629b3 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -591,19 +591,21 @@ static void *eeh_pe_detach_dev(struct eeh_pe *pe, void *userdata) * PE reset (for 3 times), we try to clear the frozen state * for 3 times as well. */ -static int eeh_clear_pe_frozen_state(struct eeh_pe *root) +static int eeh_clear_pe_frozen_state(struct eeh_pe *root, bool include_passed) { struct eeh_pe *pe; int i; eeh_for_each_pe(root, pe) { - for (i = 0; i < 3; i++) - if (!eeh_unfreeze_pe(pe)) - break; - if (i >= 3) - return -EIO; + if (include_passed || !eeh_pe_passed(pe)) { + for (i = 0; i < 3; i++) + if (!eeh_unfreeze_pe(pe)) + break; + if (i >= 3) + return -EIO; + } } - eeh_pe_state_clear(root, EEH_PE_ISOLATED, true); + eeh_pe_state_clear(root, EEH_PE_ISOLATED, include_passed); return 0; } @@ -629,7 +631,7 @@ int eeh_pe_reset_and_recover(struct eeh_pe *pe) } /* Unfreeze the PE */ - ret = eeh_clear_pe_frozen_state(pe); + ret = eeh_clear_pe_frozen_state(pe, true); if (ret) { eeh_pe_state_clear(pe, EEH_PE_RECOVERING, true); return ret; @@ -702,7 +704,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus, eeh_pe_restore_bars(pe); /* Clear frozen state */ - rc = eeh_clear_pe_frozen_state(pe); + rc = eeh_clear_pe_frozen_state(pe, true); if (rc) { pci_unlock_rescan_remove(); return rc; -- 2.7.4