[PATCH] tools/liblockdep: Fix compilation error.

[Eunbong Song]

Currently, liblockdep has compilation error with following log messages.

  CC       common.o
  CC       lockdep.o
In file included from lockdep.c:10:
../../../kernel/locking/lockdep.c: In function 'count_matching_names':
../../../kernel/locking/lockdep.c:650: error: 'lock_entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:650: error: (Each undeclared identifier is reported only once
../../../kernel/locking/lockdep.c:650: error: for each function it appears in.)
../../../kernel/locking/lockdep.c:650: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c: In function 'look_up_lock_class':
../../../kernel/locking/lockdep.c:722: error: 'hash_entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:722: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c: In function 'register_lock_class':
../../../kernel/locking/lockdep.c:777: error: 'hash_entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:777: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c: In function '__bfs':
../../../kernel/locking/lockdep.c:1039: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c: In function 'lookup_chain_cache':
../../../kernel/locking/lockdep.c:2036: error: 'entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:2036: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c:2063: error: label 'cache_hit' used but not defined
In file included from lockdep.c:10:
../../../kernel/locking/lockdep.c: In function 'lockdep_free_key_range':
../../../kernel/locking/lockdep.c:3937: error: 'hash_entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:3937: error: expected ';' before '{' token
../../../kernel/locking/lockdep.c: In function 'lockdep_reset_lock':
../../../kernel/locking/lockdep.c:3994: error: 'hash_entry' undeclared (first use in this function)
../../../kernel/locking/lockdep.c:3994: error: expected ';' before '{' token

This patch fixes this compilation error.

Signed-off-by: Eunbong Song <eunb.song@xxxxxxxxxxx>
---
 tools/lib/lockdep/lockdep.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/tools/lib/lockdep/lockdep.c b/tools/lib/lockdep/lockdep.c
index f42b7e9..f83a988 100644
--- a/tools/lib/lockdep/lockdep.c
+++ b/tools/lib/lockdep/lockdep.c
@@ -1,2 +1,8 @@
 #include <linux/lockdep.h>
+
+#ifdef list_for_each_entry_rcu
+#undef list_for_each_entry_rcu
+#endif
+#define list_for_each_entry_rcu(pos, head, member)  list_for_each_entry(pos, head, member)
+
 #include "../../../kernel/locking/lockdep.c"
-- 
1.7.0.1

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