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authorThomas Gleixner <tglx@linutronix.de>2019-04-10 13:28:04 +0300
committerThomas Gleixner <tglx@linutronix.de>2019-04-14 20:58:30 +0300
commit2dfed4565afe263751d2451ad22336ad806c25a6 (patch)
treeca5f69bc790dee2cf00a4c02fc22004cd5e6ef0e /kernel/locking
parent6a28b4c2d93b812512d8d2e5179e61a14f578560 (diff)
downloadlinux-2dfed4565afe263751d2451ad22336ad806c25a6.tar.xz
lockdep: Remove the ULONG_MAX stack trace hackery
No architecture terminates the stack trace with ULONG_MAX anymore. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alexander Potapenko <glider@google.com> Cc: Will Deacon <will.deacon@arm.com> Link: https://lkml.kernel.org/r/20190410103644.485737321@linutronix.de
Diffstat (limited to 'kernel/locking')
-rw-r--r--kernel/locking/lockdep.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e16766ff184b..2edf9501d906 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -444,17 +444,6 @@ static int save_trace(struct stack_trace *trace)
save_stack_trace(trace);
- /*
- * Some daft arches put -1 at the end to indicate its a full trace.
- *
- * <rant> this is buggy anyway, since it takes a whole extra entry so a
- * complete trace that maxes out the entries provided will be reported
- * as incomplete, friggin useless </rant>
- */
- if (trace->nr_entries != 0 &&
- trace->entries[trace->nr_entries-1] == ULONG_MAX)
- trace->nr_entries--;
-
trace->max_entries = trace->nr_entries;
nr_stack_trace_entries += trace->nr_entries;