[tip:locking/core] locking/lockdep: Remove the unused print_lock_trace() function

[tip-bot for Anders Roxell]

Commit-ID:  c0090c4c85c27d1fa3d785c935501b7207cd2869
Gitweb:     https://git.kernel.org/tip/c0090c4c85c27d1fa3d785c935501b7207cd2869
Author:     Anders Roxell <anders.roxell@xxxxxxxxxx>
AuthorDate: Thu, 16 May 2019 21:13:26 +0200
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 24 May 2019 09:05:46 +0200

locking/lockdep: Remove the unused print_lock_trace() function

gcc warns that function print_lock_trace() is unused if
CONFIG_PROVE_LOCKING isn't set:

../kernel/locking/lockdep.c:2820:13: warning: âprint_lock_traceâ defined but not used [-Wunused-function]

Rework so we remove the function if CONFIG_PROVE_LOCKING isn't set.

Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: will.deacon@xxxxxxx
Fixes: c120bce78065 ("lockdep: Simplify stack trace handling")
Link: http://lkml.kernel.org/r/20190516191326.27003-1-anders.roxell@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 kernel/locking/lockdep.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 6b283b4f87aa..8d32ae7768a7 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2818,10 +2818,6 @@ static inline int validate_chain(struct task_struct *curr,
 {
 	return 1;
 }
-
-static void print_lock_trace(struct lock_trace *trace, unsigned int spaces)
-{
-}
 #endif
 
 /*