ibmvnic: add comments for spinlock_t definitions

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>

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index c09c3f6..8f73a30 100644 (file)
--- 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;
 };