From d623ed9ba0896f100f7725b0134dedc745379669 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Mon, 29 Jun 2026 17:07:51 -0700
Subject: [PATCH] csky: implement flush_cache_vmap() in C

To avoid getting an unused-var warning from

	unsigned long start = something;
	...
	flush_cache_vmap(start, ...);

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202606291606.9h8aGniQ-lkp@intel.com/
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Barry Song <baohua@kernel.org>
Cc: Andrew Donnellan <ajd@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Wen Jiang <jiangwen6@xiaomi.com>
Cc: Wen Jiang <jiangwenxiaomi@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xueyuan Chen <xueyuan.chen21@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 arch/csky/abiv1/inc/abi/cacheflush.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/csky/abiv1/inc/abi/cacheflush.h b/arch/csky/abiv1/inc/abi/cacheflush.h
index d011a81575d2..21cc7965c53d 100644
--- a/arch/csky/abiv1/inc/abi/cacheflush.h
+++ b/arch/csky/abiv1/inc/abi/cacheflush.h
@@ -42,7 +42,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
  * Use cache_wbinv_all() here and need to be improved in future.
  */
 extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
-#define flush_cache_vmap(start, end)		cache_wbinv_all()
+
+static inline void flush_cache_vmap(unsigned long start, unsigned long end)
+{
+	cache_wbinv_all();
+}
+
 #define flush_cache_vmap_early(start, end)	do { } while (0)
 #define flush_cache_vunmap(start, end)		cache_wbinv_all()