Re: [PATCH 17/24] riscv: use asm-generic/mmu_context.h for no-op implementations

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On Mon, 27 Jul 2020 20:33:58 PDT (-0700), npiggin@xxxxxxxxx wrote:
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
Cc: linux-riscv@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
---
 arch/riscv/include/asm/mmu_context.h | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/arch/riscv/include/asm/mmu_context.h b/arch/riscv/include/asm/mmu_context.h
index 67c463812e2d..250defa06f3a 100644
--- a/arch/riscv/include/asm/mmu_context.h
+++ b/arch/riscv/include/asm/mmu_context.h
@@ -13,34 +13,16 @@
 #include <linux/mm.h>
 #include <linux/sched.h>

-static inline void enter_lazy_tlb(struct mm_struct *mm,
-	struct task_struct *task)
-{
-}
-
-/* Initialize context-related info for a new mm_struct */
-static inline int init_new_context(struct task_struct *task,
-	struct mm_struct *mm)
-{
-	return 0;
-}
-
-static inline void destroy_context(struct mm_struct *mm)
-{
-}
-
 void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	struct task_struct *task);

+#define activate_mm activate_mm
 static inline void activate_mm(struct mm_struct *prev,
 			       struct mm_struct *next)
 {
 	switch_mm(prev, next, NULL);
 }

-static inline void deactivate_mm(struct task_struct *task,
-	struct mm_struct *mm)
-{
-}
+#include <asm-generic/mmu_context.h>

 #endif /* _ASM_RISCV_MMU_CONTEXT_H */

Acked-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>

I'm assuming this is going in along with the others.  Thanks!





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