From 0b9e267d71d2e74d1108785928fd8c8c9dbf441e Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Thu, 27 Jun 2013 13:46:44 +0800
Subject: [PATCH] powerpc/powernv: Replace variables with flags
We have 2 fields in "struct pnv_phb" to trace the states. The patch
replace the fields with one and introduces flags for that. The patch
doesn't impact the logic.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/platforms/powernv/eeh-ioda.c | 8 ++++----
arch/powerpc/platforms/powernv/pci.c | 4 ++--
arch/powerpc/platforms/powernv/pci.h | 7 +++++--
3 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 84f3036511cb..85025d7e6396 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -132,7 +132,7 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
&ioda_eeh_dbgfs_ops);
#endif
- phb->eeh_enabled = 1;
+ phb->eeh_state |= PNV_EEH_STATE_ENABLED;
}
return 0;
@@ -815,7 +815,7 @@ static int ioda_eeh_next_error(struct eeh_pe **pe)
* removed, we needn't take care of it any more.
*/
phb = hose->private_data;
- if (phb->removed)
+ if (phb->eeh_state & PNV_EEH_STATE_REMOVED)
continue;
rc = opal_pci_next_error(phb->opal_id,
@@ -850,7 +850,7 @@ static int ioda_eeh_next_error(struct eeh_pe **pe)
list_for_each_entry_safe(hose, tmp,
&hose_list, list_node) {
phb = hose->private_data;
- phb->removed = 1;
+ phb->eeh_state |= PNV_EEH_STATE_REMOVED;
}
WARN(1, "EEH: dead IOC detected\n");
@@ -867,7 +867,7 @@ static int ioda_eeh_next_error(struct eeh_pe **pe)
WARN(1, "EEH: dead PHB#%x detected\n",
hose->global_number);
- phb->removed = 1;
+ phb->eeh_state |= PNV_EEH_STATE_REMOVED;
ret = 3;
goto out;
} else if (severity == OPAL_EEH_SEV_PHB_FENCED) {
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 577cbeadb0ea..4c91e6dd1af2 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -309,7 +309,7 @@ static int pnv_pci_read_config(struct pci_bus *bus,
if (phb_pe && (phb_pe->state & EEH_PE_ISOLATED))
return PCIBIOS_SUCCESSFUL;
- if (phb->eeh_enabled) {
+ if (phb->eeh_state & PNV_EEH_STATE_ENABLED) {
if (*val == EEH_IO_ERROR_VALUE(size)) {
busdn = pci_bus_to_OF_node(bus);
for (dn = busdn->child; dn; dn = dn->sibling) {
@@ -359,7 +359,7 @@ static int pnv_pci_write_config(struct pci_bus *bus,
/* Check if the PHB got frozen due to an error (no response) */
#ifdef CONFIG_EEH
- if (!phb->eeh_enabled)
+ if (!(phb->eeh_state & PNV_EEH_STATE_ENABLED))
pnv_pci_config_check_eeh(phb, bus, bdfn);
#else
pnv_pci_config_check_eeh(phb, bus, bdfn);
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 43906e3ab26f..40bdf0219b96 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -78,6 +78,10 @@ struct pnv_eeh_ops {
int (*configure_bridge)(struct eeh_pe *pe);
int (*next_error)(struct eeh_pe **pe);
};
+
+#define PNV_EEH_STATE_ENABLED (1 << 0) /* EEH enabled */
+#define PNV_EEH_STATE_REMOVED (1 << 1) /* PHB removed */
+
#endif /* CONFIG_EEH */
struct pnv_phb {
@@ -92,8 +96,7 @@ struct pnv_phb {
#ifdef CONFIG_EEH
struct pnv_eeh_ops *eeh_ops;
- int eeh_enabled;
- int removed;
+ int eeh_state;
#endif
#ifdef CONFIG_DEBUG_FS
--
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