linux-kernel - [PATCH 14/24] openrisc: use asm-generic/mmu

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Date:   Tue, 28 Jul 2020 13:33:55 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     linux-arch@...r.kernel.org
Cc:     Nicholas Piggin <npiggin@...il.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Arnd Bergmann <arnd@...db.de>,
        Jonas Bonn <jonas@...thpole.se>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        Stafford Horne <shorne@...il.com>,
        openrisc@...ts.librecores.org
Subject: [PATCH 14/24] openrisc: use asm-generic/mmu_context.h for no-op implementations

Cc: Jonas Bonn <jonas@...thpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>
Cc: Stafford Horne <shorne@...il.com>
Cc: openrisc@...ts.librecores.org
Signed-off-by: Nicholas Piggin <npiggin@...il.com>
---
 arch/openrisc/include/asm/mmu_context.h | 8 +++-----
 arch/openrisc/mm/tlb.c                  | 2 ++
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/openrisc/include/asm/mmu_context.h b/arch/openrisc/include/asm/mmu_context.h
index ced577542e29..a6702384c77d 100644
--- a/arch/openrisc/include/asm/mmu_context.h
+++ b/arch/openrisc/include/asm/mmu_context.h
@@ -17,13 +17,13 @@
 
 #include <asm-generic/mm_hooks.h>
 
+#define init_new_context init_new_context
 extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+#define destroy_context destroy_context
 extern void destroy_context(struct mm_struct *mm);
 extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 		      struct task_struct *tsk);
 
-#define deactivate_mm(tsk, mm)	do { } while (0)
-
 #define activate_mm(prev, next) switch_mm((prev), (next), NULL)
 
 /* current active pgd - this is similar to other processors pgd
@@ -32,8 +32,6 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 
 extern volatile pgd_t *current_pgd[]; /* defined in arch/openrisc/mm/fault.c */
 
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
+#include <asm-generic/mmu_context.h>
 
 #endif
diff --git a/arch/openrisc/mm/tlb.c b/arch/openrisc/mm/tlb.c
index 4b680aed8f5f..821aab4cf3be 100644
--- a/arch/openrisc/mm/tlb.c
+++ b/arch/openrisc/mm/tlb.c
@@ -159,6 +159,7 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
  * instance.
  */
 
+#define init_new_context init_new_context
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
 	mm->context = NO_CONTEXT;
@@ -170,6 +171,7 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
  * drops it.
  */
 
+#define destroy_context destroy_context
 void destroy_context(struct mm_struct *mm)
 {
 	flush_tlb_mm(mm);
-- 
2.23.0