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 ‘tlb_remove_table_smp_sync’:
mm/memory.c:339:2: error: implicit declaration of function
‘tlb_flush_remove_tables_local’; did you mean ‘tlb_remove_table’?
[-Werror=implicit-function-declaration]
tlb_flush_remove_tables_local(mm);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tlb_remove_table
mm/memory.c: In function ‘tlb_table_flush’:
mm/memory.c:372:2: error: implicit declaration of function
‘tlb_flush_remove_tables’; did you mean ‘tlb_remove_table’?
[-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 <[email protected]>
---
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
