[PATCH] arm: asm/tlb.h: Fix build error implicit func declaration

[Anders Roxell]

Building on arm 32 with LPAE enabled we don't include asm-generic/tlb.h,
where we have tlb_flush_remove_tables_local and tlb_flush_remove_tables
defined.
mm/memory.c: In function âtlb_remove_table_smp_syncâ:
mm/memory.c:339:2: error: implicit declaration of function âtlb_flush_remove_tables_localâ; did you mean âtlb_remove_tableâ? [-Werror=implicit-function-declaration]
  tlb_flush_remove_tables_local(mm);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  tlb_remove_table
mm/memory.c: In function âtlb_table_flushâ:
mm/memory.c:372:2: error: implicit declaration of function âtlb_flush_remove_tablesâ; did you mean âtlb_remove_tableâ? [-Werror=implicit-function-declaration]
  tlb_flush_remove_tables(tlb->mm);
  ^~~~~~~~~~~~~~~~~~~~~~~
  tlb_remove_table

To fix this issue we define them in arm 32's specific asm/tlb.h file.

Fixes: 2ff6ddf19c0e ("x86/mm/tlb: Leave lazy TLB mode at page table free time")
Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
---

Ingo, would it make sense for you to pick it up into the x86 tree since
that contains the bug ?

Cheers,
Anders

 arch/arm/include/asm/tlb.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index d5562f9ce600..f854148c8d7c 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -292,5 +292,13 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb,
 {
 }
 
+static inline void tlb_flush_remove_tables(struct mm_struct *mm)
+{
+}
+
+static inline void tlb_flush_remove_tables_local(void *arg)
+{
+}
+
 #endif /* CONFIG_MMU */
 #endif
-- 
2.18.0