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authorIngo Molnar <mingo@kernel.org>2016-02-22 10:26:05 +0300
committerIngo Molnar <mingo@kernel.org>2016-02-22 10:26:05 +0300
commitab876728a91d89e93e4928895529cd5bb4dff6e4 (patch)
tree3aa7603c289f79a570cf15e4019b1acb9459e608 /arch/s390/kernel/trace.c
parent35575e0e8ba633fc8276509a21f89b599b4f9006 (diff)
parent81f70ba233d5f660e1ea5fe23260ee323af5d53a (diff)
downloadlinux-ab876728a91d89e93e4928895529cd5bb4dff6e4.tar.xz
Merge tag 'v4.5-rc5' into efi/core, before queueing up new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390/kernel/trace.c')
-rw-r--r--arch/s390/kernel/trace.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/trace.c b/arch/s390/kernel/trace.c
index 21a5df99552b..dde7654f5c68 100644
--- a/arch/s390/kernel/trace.c
+++ b/arch/s390/kernel/trace.c
@@ -18,6 +18,9 @@ void trace_s390_diagnose_norecursion(int diag_nr)
unsigned long flags;
unsigned int *depth;
+ /* Avoid lockdep recursion. */
+ if (IS_ENABLED(CONFIG_LOCKDEP))
+ return;
local_irq_save(flags);
depth = this_cpu_ptr(&diagnose_trace_depth);
if (*depth == 0) {