linux-kernel - [PATCH] loongarch: use asm-generic/cacheflush.h

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Date:   Wed, 17 Aug 2022 09:51:26 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     chenhuacai@...nel.org
Cc:     kernel@...0n.name, linux-kernel@...r.kernel.org, dave@...olabs.net
Subject: [PATCH] loongarch: use asm-generic/cacheflush.h

... instead of redefining the nops.

Signed-off-by: Davidlohr Bueso <dave@...olabs.net>
---
 arch/loongarch/include/asm/cacheflush.h | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/loongarch/include/asm/cacheflush.h b/arch/loongarch/include/asm/cacheflush.h
index 670900141b7c..7e38243b79bf 100644
--- a/arch/loongarch/include/asm/cacheflush.h
+++ b/arch/loongarch/include/asm/cacheflush.h
@@ -14,21 +14,6 @@ extern void local_flush_icache_range(unsigned long start, unsigned long end);
 #define flush_icache_range	local_flush_icache_range
 #define flush_icache_user_range	local_flush_icache_range
 
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-
-#define flush_cache_all()				do { } while (0)
-#define flush_cache_mm(mm)				do { } while (0)
-#define flush_cache_dup_mm(mm)				do { } while (0)
-#define flush_cache_range(vma, start, end)		do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)		do { } while (0)
-#define flush_cache_vmap(start, end)			do { } while (0)
-#define flush_cache_vunmap(start, end)			do { } while (0)
-#define flush_icache_page(vma, page)			do { } while (0)
-#define flush_icache_user_page(vma, page, addr, len)	do { } while (0)
-#define flush_dcache_page(page)				do { } while (0)
-#define flush_dcache_mmap_lock(mapping)			do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)		do { } while (0)
-
 #define cache_op(op, addr)						\
 	__asm__ __volatile__(						\
 	"	cacop	%0, %1					\n"	\
-- 
2.37.2