Looks like I also missed the build config that includes
CONFIG_HIGHMEM64G && CONFIG_PARAVIRT to export the native_pud_clear()
dummy function.
Fix: commit e5d56efc ("mm,x86: fix SMP x86 32bit build for native_pud_clear()")
Reported-by: Laura Abbott <labbott@xxxxxxxxxx>
Reported-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
---
arch/x86/include/asm/pgtable-3level.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 8f50fb3..72277b1 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -121,7 +121,8 @@ static inline void native_pmd_clear(pmd_t *pmd)
*(tmp + 1) = 0;
}
-#ifndef CONFIG_SMP
+#if !defined(CONFIG_SMP) || (defined(CONFIG_HIGHMEM64G) && \
+ defined(CONFIG_PARAVIRT))
static inline void native_pud_clear(pud_t *pudp)
{
}
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