From a369d96ca55401c29ca05a41c3aa15d65948c599 Mon Sep 17 00:00:00 2001

From: Lijun Pan <lijunp213@gmail.com>

Date: Thu, 11 Feb 2021 00:43:23 -0600

Subject: [PATCH] ibmvnic: add comments for spinlock_t definitions

References: bsc#1184114 ltc#192237 bsc#1183871 ltc#192139

Patch-mainline: v5.12-rc1

Git-commit: a369d96ca55401c29ca05a41c3aa15d65948c599

There are several spinlock_t definitions without comments.

Add them.

Signed-off-by: Lijun Pan <lijunp213@gmail.com>

Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

Acked-by: Michal Suchanek <msuchanek@suse.de>

---

 drivers/net/ethernet/ibm/ibmvnic.h | 10 ++++++----

 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h

index c09c3f6bba9f..8f73a30a7593 100644

--- a/drivers/net/ethernet/ibm/ibmvnic.h

+++ b/drivers/net/ethernet/ibm/ibmvnic.h

@@ -845,6 +845,7 @@ struct ibmvnic_crq_queue {

 	union ibmvnic_crq *msgs;

 	int size, cur;

 	dma_addr_t msg_token;

+	/* Used for serialization of msgs, cur */

 	spinlock_t lock;

 	bool active;

 	char name[32];

@@ -876,6 +877,7 @@ struct ibmvnic_sub_crq_queue {

 	unsigned int irq;

 	unsigned int pool_index;

 	int scrq_num;

+	/* Used for serialization of msgs, cur */

 	spinlock_t lock;

 	struct sk_buff *rx_skb_top;

 	struct ibmvnic_adapter *adapter;

@@ -1080,9 +1082,12 @@ struct ibmvnic_adapter {

 	struct tasklet_struct tasklet;

 	enum vnic_state state;

+	/* Used for serializatin of state field */

+	spinlock_t state_lock;

 	enum ibmvnic_reset_reason reset_reason;

-	spinlock_t rwi_lock;

 	struct list_head rwi_list;

+	/* Used for serialization of rwi_list */

+	spinlock_t rwi_lock;

 	struct work_struct ibmvnic_reset;

 	struct delayed_work ibmvnic_delayed_reset;

 	unsigned long resetting;

@@ -1096,7 +1101,4 @@ struct ibmvnic_adapter {

 	struct ibmvnic_tunables desired;

 	struct ibmvnic_tunables fallback;

-

-	/* Used for serializatin of state field */

-	spinlock_t state_lock;

 };

-- 

2.26.2