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LoongArch: Remove superfluous flush_dcache_page() definition
LoongArch doesn't have cache aliases, so flush_dcache_page() is a no-op. There is a generic implementation for this case in include/asm-generic/ cacheflush.h. So remove the superfluous flush_dcache_page() definition, which also silences such build warnings: In file included from crypto/scompress.c:12: include/crypto/scatterwalk.h: In function 'scatterwalk_pagedone': include/crypto/scatterwalk.h:76:30: warning: variable 'page' set but not used [-Wunused-but-set-variable] 76 | struct page *page; | ^~~~ crypto/scompress.c: In function 'scomp_acomp_comp_decomp': >> crypto/scompress.c:174:38: warning: unused variable 'dst_page' [-Wunused-variable] 174 | struct page *dst_page = sg_page(req->dst); | Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202403091614.NeUw5zcv-lkp@intel.com/ Suggested-by: Barry Song <baohua@kernel.org> Acked-by: Barry Song <baohua@kernel.org> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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1 changed files with 0 additions and 3 deletions
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@ -37,8 +37,6 @@ void local_flush_icache_range(unsigned long start, unsigned long end);
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#define flush_icache_range local_flush_icache_range
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#define flush_icache_user_range local_flush_icache_range
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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#define flush_cache_all() do { } while (0)
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#define flush_cache_mm(mm) do { } while (0)
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#define flush_cache_dup_mm(mm) do { } while (0)
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@ -47,7 +45,6 @@ void local_flush_icache_range(unsigned long start, unsigned long end);
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#define flush_cache_vmap(start, end) do { } while (0)
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#define flush_cache_vunmap(start, end) do { } while (0)
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#define flush_icache_user_page(vma, page, addr, len) do { } while (0)
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#define flush_dcache_page(page) do { } while (0)
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#define flush_dcache_mmap_lock(mapping) do { } while (0)
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#define flush_dcache_mmap_unlock(mapping) do { } while (0)
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