+ csky-implement-flush_cache_vmap-in-c.patch added to mm-unstable branch

+ csky-implement-flush_cache_vmap-in-c.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: csky: implement flush_cache_vmap() in C
has been added to the -mm mm-unstable branch.  Its filename is
     csky-implement-flush_cache_vmap-in-c.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/csky-implement-flush_cache_vmap-in-c.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: csky: implement flush_cache_vmap() in C
Date: Mon Jun 29 05:07:51 PM PDT 2026

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/
Cc: Guo Ren <guoren@kernel.org>
Cc: Andrew Donnellan <ajd@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: "Barry Song (Xiaomi)" <baohua@kernel.org>
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(-)

--- a/arch/csky/abiv1/inc/abi/cacheflush.h~csky-implement-flush_cache_vmap-in-c
+++ a/arch/csky/abiv1/inc/abi/cacheflush.h
@@ -42,7 +42,12 @@ static inline void flush_anon_page(struc
  * 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()
 
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-mincore-use-walk_page_range_vma-in-do_mincore-fix.patch
csky-implement-flush_cache_vmap-in-c.patch
mm-page_owner-add-print_mode-filter-fix.patch
mm-annotate-data-race-in-cpu_needs_drain-fix.patch
mm-zsmalloc-encode-class-index-in-obj-value-for-lockless-class-lookup-fix.patch
drivers-media-v4l2-core-v4l2-vp9c-reduce-inlining.patch