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-rw-r--r--arch/powerpc/include/asm/mmu.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 1bf919aafd50..e2fb408f8398 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -156,6 +156,14 @@ static __always_inline bool mmu_has_feature(unsigned long feature)
BUILD_BUG_ON(!__builtin_constant_p(feature));
+#ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
+ if (!static_key_initialized) {
+ printk("Warning! mmu_has_feature() used prior to jump label init!\n");
+ dump_stack();
+ return early_mmu_has_feature(feature);
+ }
+#endif
+
if (!(MMU_FTRS_POSSIBLE & feature))
return false;