[PATCH 5.15 219/262] ibmvnic: define flush_reset_queue helper

From: Greg Kroah-Hartman
Date: Mon Mar 07 2022 - 05:21:51 EST


From: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx>

[ Upstream commit 83da53f7e4bd86dca4b2edc1e2bb324fb3c033a1 ]

Define and use a helper to flush the reset queue.

Fixes: 2770a7984db5 ("ibmvnic: Introduce hard reset recovery")
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/ibm/ibmvnic.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index e98f7d3f935d..088c764fe3cd 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2557,12 +2557,23 @@ static void __ibmvnic_delayed_reset(struct work_struct *work)
__ibmvnic_reset(&adapter->ibmvnic_reset);
}

+static void flush_reset_queue(struct ibmvnic_adapter *adapter)
+{
+ struct list_head *entry, *tmp_entry;
+
+ if (!list_empty(&adapter->rwi_list)) {
+ list_for_each_safe(entry, tmp_entry, &adapter->rwi_list) {
+ list_del(entry);
+ kfree(list_entry(entry, struct ibmvnic_rwi, list));
+ }
+ }
+}
+
static int ibmvnic_reset(struct ibmvnic_adapter *adapter,
enum ibmvnic_reset_reason reason)
{
- struct list_head *entry, *tmp_entry;
- struct ibmvnic_rwi *rwi, *tmp;
struct net_device *netdev = adapter->netdev;
+ struct ibmvnic_rwi *rwi, *tmp;
unsigned long flags;
int ret;

@@ -2605,12 +2616,9 @@ static int ibmvnic_reset(struct ibmvnic_adapter *adapter,
/* if we just received a transport event,
* flush reset queue and process this reset
*/
- if (adapter->force_reset_recovery && !list_empty(&adapter->rwi_list)) {
- list_for_each_safe(entry, tmp_entry, &adapter->rwi_list) {
- list_del(entry);
- kfree(list_entry(entry, struct ibmvnic_rwi, list));
- }
- }
+ if (adapter->force_reset_recovery)
+ flush_reset_queue(adapter);
+
rwi->reset_reason = reason;
list_add_tail(&rwi->list, &adapter->rwi_list);
netdev_dbg(adapter->netdev, "Scheduling reset (reason %s)\n",
--
2.34.1