hsr: fix a race condition in node list insertion and deletion

[platform/kernel/linux-starfive.git] / net / hsr / hsr_main.h

diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index 8d885bc..d40de84 100644 (file)
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -160,8 +160,9 @@ struct hsr_priv {
        int announce_count;
        u16 sequence_nr;
        u16 sup_sequence_nr;    /* For HSRv1 separate seq_nr for supervision */
-       u8 prot_version;                /* Indicate if HSRv0 or HSRv1. */
-       spinlock_t seqnr_lock;                  /* locking for sequence_nr */
+       u8 prot_version;        /* Indicate if HSRv0 or HSRv1. */
+       spinlock_t seqnr_lock;  /* locking for sequence_nr */
+       spinlock_t list_lock;   /* locking for node list */
        unsigned char           sup_multicast_addr[ETH_ALEN];
 #ifdef CONFIG_DEBUG_FS
        struct dentry *node_tbl_root;