The recent TLB flush rework broke the build when the Radix MMU is
disabled at build time, eg:
(.text+0x264): undefined reference to `.radix__tlbiel_all'
We could add an empty version, but if we ever called it by accident
that would indicate a bad bug, so add a stub that just WARNs if we do.
Fixes: d4748276ae14 ("powerpc/64s: Improve local TLB flush for boot and MCE on
POWER9")
Signed-off-by: Michael Ellerman <[email protected]>
---
arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index b8f9ad587087..8eea90f80e45 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -11,7 +11,11 @@ static inline int mmu_get_ap(int psize)
return mmu_psize_defs[psize].ap;
}
+#ifdef CONFIG_PPC_RADIX_MMU
extern void radix__tlbiel_all(unsigned int action);
+#else
+static inline void radix__tlbiel_all(unsigned int action) { WARN_ON(1); };
+#endif
extern void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long
end);
--
2.14.1
