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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/net/xen-netback/hash.c
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@@ -51,7 +51,8 @@
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 	found = false;
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 	oldest = NULL;
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-	list_for_each_entry_rcu(entry, &vif->hash.cache.list, link) {
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+	list_for_each_entry_rcu(entry, &vif->hash.cache.list, link,
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+				lockdep_is_held(&vif->hash.cache.lock)) {
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 		/* Make sure we don't add duplicate entries */
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 		if (entry->len == len &&
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 		    memcmp(entry->tag, tag, len) == 0)
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@@ -102,7 +103,8 @@
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 	spin_lock_irqsave(&vif->hash.cache.lock, flags);
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-	list_for_each_entry_rcu(entry, &vif->hash.cache.list, link) {
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+	list_for_each_entry_rcu(entry, &vif->hash.cache.list, link,
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+				lockdep_is_held(&vif->hash.cache.lock)) {
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 		list_del_rcu(&entry->link);
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 		vif->hash.cache.count--;
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 		kfree_rcu(entry, rcu);
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@@ -391,7 +393,7 @@
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 	case XEN_NETIF_CTRL_HASH_ALGORITHM_NONE:
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 		seq_puts(m, "Hash Algorithm: NONE\n");
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-		/* FALLTHRU */
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+		fallthrough;
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 	default:
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 		return;
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 	}