[PATCH 7/8] locking/lockdep: Update obsolete struct field description

[Yuyang Du]

The lock_chain struct definition has outdated comment, so update it.

Signed-off-by: Yuyang Du <duyuyang@xxxxxxxxx>
---
 include/linux/lockdep.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index c5335df..128f276 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -192,7 +192,11 @@ struct lock_list {
  * We record lock dependency chains, so that we can cache them:
  */
 struct lock_chain {
-	/* see BUILD_BUG_ON()s in lookup_chain_cache() */
+	/*
+	 * irq_context: the same as irq_context in held_lock below
+	 * depth:       the number of held locks in this chain
+	 * base:        the index in chain_hlocks for this chain
+	 */
 	unsigned int			irq_context :  2,
 					depth       :  6,
 					base	    : 24;
-- 
1.8.3.1