Merge branch 'v4.9/topic/PANemulation' into linux-linaro-lsk-v4.9

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index a62db952ffcb..d050d720a1b4 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -41,8 +41,10 @@ DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
  * We don't use this_cpu_read(cpu_number) as that has implicit writes to
  * preempt_count, and associated (compiler) barriers, that we'd like to avoid
  * the expense of. If we're preemptible, the value can be stale at use anyway.
+ * And we can't use this_cpu_ptr() either, as that winds up recursing back
+ * here under CONFIG_DEBUG_PREEMPT=y.
  */
-#define raw_smp_processor_id() (*this_cpu_ptr(&cpu_number))
+#define raw_smp_processor_id() (*raw_cpu_ptr(&cpu_number))
 
 struct seq_file;