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From: Sam Bobroff <sbobroff@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 08/14] powerpc/eeh: Cleanup field names in eeh_rmv_data
Date: Wed, 12 Sep 2018 11:23:27 +1000	[thread overview]
Message-ID: <fd3beb5a120b1de7b639a23e343bb9f5995a82b7.1536715396.git.sbobroff@linux.ibm.com> (raw)
In-Reply-To: <cover.1536715396.git.sbobroff@linux.ibm.com>

Change the name of the fields in eeh_rmv_data to clarify their usage.

Change "edev_list" to "removed_vf_list" because it does not contain
generic edevs, but rather only edevs that contain virtual functions
(which need to be removed during recovery).

Similarly, change "removed" to "removed_dev_count" because it is a
count of any removed devices, not just those in the above list.

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
---
 arch/powerpc/kernel/eeh_driver.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 7859af897058..ffe8293d1f06 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -35,8 +35,8 @@
 #include <asm/rtas.h>
 
 struct eeh_rmv_data {
-	struct list_head edev_list;
-	int removed;
+	struct list_head removed_vf_list;
+	int removed_dev_count;
 };
 
 static int eeh_result_priority(enum pci_ers_result result)
@@ -502,7 +502,6 @@ static void *eeh_rmv_device(struct eeh_dev *edev, void *userdata)
 	struct pci_driver *driver;
 	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);
 	struct eeh_rmv_data *rmv_data = (struct eeh_rmv_data *)userdata;
-	int *removed = rmv_data ? &rmv_data->removed : NULL;
 
 	/*
 	 * Actually, we should remove the PCI bridges as well.
@@ -524,7 +523,7 @@ static void *eeh_rmv_device(struct eeh_dev *edev, void *userdata)
 	if (eeh_dev_removed(edev))
 		return NULL;
 
-	if (removed) {
+	if (rmv_data) {
 		if (eeh_pe_passed(edev->pe))
 			return NULL;
 		driver = eeh_pcid_get(dev);
@@ -543,8 +542,8 @@ static void *eeh_rmv_device(struct eeh_dev *edev, void *userdata)
 	pr_debug("EEH: Removing %s without EEH sensitive driver\n",
 		 pci_name(dev));
 	edev->mode |= EEH_DEV_DISCONNECTED;
-	if (removed)
-		(*removed)++;
+	if (rmv_data)
+		rmv_data->removed_dev_count++;
 
 	if (edev->physfn) {
 #ifdef CONFIG_PCI_IOV
@@ -560,7 +559,7 @@ static void *eeh_rmv_device(struct eeh_dev *edev, void *userdata)
 		pdn->pe_number = IODA_INVALID_PE;
 #endif
 		if (rmv_data)
-			list_add(&edev->rmv_entry, &rmv_data->edev_list);
+			list_add(&edev->rmv_entry, &rmv_data->removed_vf_list);
 	} else {
 		pci_lock_rescan_remove();
 		pci_stop_and_remove_bus_device(dev);
@@ -729,7 +728,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus,
 	 * the device up before the scripts have taken it down,
 	 * potentially weird things happen.
 	 */
-	if (!driver_eeh_aware || rmv_data->removed) {
+	if (!driver_eeh_aware || rmv_data->removed_dev_count) {
 		pr_info("EEH: Sleep 5s ahead of %s hotplug\n",
 			(driver_eeh_aware ? "partial" : "complete"));
 		ssleep(5);
@@ -791,7 +790,8 @@ void eeh_handle_normal_event(struct eeh_pe *pe)
 	struct eeh_pe *tmp_pe;
 	int rc = 0;
 	enum pci_ers_result result = PCI_ERS_RESULT_NONE;
-	struct eeh_rmv_data rmv_data = {LIST_HEAD_INIT(rmv_data.edev_list), 0};
+	struct eeh_rmv_data rmv_data =
+		{LIST_HEAD_INIT(rmv_data.removed_vf_list), 0};
 
 	bus = eeh_pe_bus_get(pe);
 	if (!bus) {
@@ -934,7 +934,8 @@ void eeh_handle_normal_event(struct eeh_pe *pe)
 	 * For those hot removed VFs, we should add back them after PF get
 	 * recovered properly.
 	 */
-	list_for_each_entry_safe(edev, tmp, &rmv_data.edev_list, rmv_entry) {
+	list_for_each_entry_safe(edev, tmp, &rmv_data.removed_vf_list,
+				 rmv_entry) {
 		eeh_add_virt_device(edev);
 		list_del(&edev->rmv_entry);
 	}
-- 
2.19.0.2.gcad72f5712

  parent reply	other threads:[~2018-09-12  1:23 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-12  1:23 [PATCH 00/14] EEH refactoring 3 Sam Bobroff
2018-09-12  1:23 ` [PATCH 01/14] powerpc/eeh: Fix possible null deref in eeh_dump_dev_log() Sam Bobroff
2018-10-15  4:00   ` [01/14] " Michael Ellerman
2018-09-12  1:23 ` [PATCH 02/14] powerpc/eeh: Fix null deref for devices removed during EEH Sam Bobroff
2018-09-12  1:23 ` [PATCH 03/14] powerpc/eeh: Fix use of EEH_PE_KEEP on wrong field Sam Bobroff
2018-09-12  1:23 ` [PATCH 04/14] powerpc/eeh: Cleanup EEH_POSTPONED_PROBE Sam Bobroff
2018-09-12  1:23 ` [PATCH 05/14] powerpc/eeh: Cleanup unused field in eeh_dev Sam Bobroff
2018-09-12  1:23 ` [PATCH 06/14] powerpc/eeh: Cleanup eeh_add_virt_device() Sam Bobroff
2018-09-12  1:23 ` [PATCH 07/14] powerpc/eeh: Cleanup list_head field names Sam Bobroff
2018-09-12  1:23 ` Sam Bobroff [this message]
2018-09-12  1:23 ` [PATCH 09/14] powerpc/eeh: Cleanup logic in eeh_rmv_from_parent_pe() Sam Bobroff
2018-09-12  1:23 ` [PATCH 10/14] powerpc/eeh: Cleanup eeh_enabled() Sam Bobroff
2018-09-12  1:23 ` [PATCH 11/14] powerpc/eeh: Cleanup unnecessary eeh_pe_state_mark_with_cfg() Sam Bobroff
2018-09-12  1:23 ` [PATCH 12/14] powerpc/eeh: Cleanup eeh_pe_state_mark() Sam Bobroff
2018-09-12  1:23 ` [PATCH 13/14] powerpc/eeh: Cleanup eeh_ops.wait_state() Sam Bobroff
2018-09-12  1:23 ` [PATCH 14/14] powerpc/eeh: Cleanup control flow in eeh_handle_normal_event() Sam Bobroff

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