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csky: implement flush_cache_vmap() in C

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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>
This commit is contained in:
Andrew Morton
2026-06-29 17:07:51 -07:00
parent cdea9364e4
commit d623ed9ba0
1 changed files with 6 additions and 1 deletions
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7
arch/csky/abiv1/inc/abi/cacheflush.h
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@@ -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()