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[v2,17/23] riscv: use asm-generic/mmu_context.h for no-op implementations

Message ID 20200826145249.745432-18-npiggin@gmail.com (mailing list archive)
State New, archived
Headers show
Series Use asm-generic for mmu_context no-op functions | expand

Commit Message

Nicholas Piggin Aug. 26, 2020, 2:52 p.m. UTC 
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/riscv/include/asm/mmu_context.h | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

Comments

Pekka Enberg Aug. 26, 2020, 4:42 p.m. UTC | #1 
On Wed, Aug 26, 2020 at 5:54 PM Nicholas Piggin <npiggin@gmail.com> wrote:
>
> Cc: Paul Walmsley <paul.walmsley@sifive.com>
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Albert Ou <aou@eecs.berkeley.edu>
> Cc: linux-riscv@lists.infradead.org
> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Reviewed-by: Pekka Enberg <penberg@kernel.or>
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Patch

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 */