From 366e37e4da23f9df498cc9577cadcb354f7bd431 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 22 Feb 2019 15:42:23 +0100 Subject: arm64: avoid clang warning about self-assignment Building a preprocessed source file for arm64 now always produces a warning with clang because of the page_to_virt() macro assigning a variable to itself. Adding a new temporary variable avoids this issue. Fixes: 2813b9c02962 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc") Reviewed-by: Andrey Konovalov Signed-off-by: Arnd Bergmann Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/memory.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/arm64') diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index e1ec947e7c0c..6340aa8350d9 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -316,8 +316,9 @@ static inline void *phys_to_virt(phys_addr_t x) #define page_to_virt(page) ({ \ unsigned long __addr = \ ((__page_to_voff(page)) | PAGE_OFFSET); \ - __addr = __tag_set(__addr, page_kasan_tag(page)); \ - ((void *)__addr); \ + unsigned long __addr_tag = \ + __tag_set(__addr, page_kasan_tag(page)); \ + ((void *)__addr_tag); \ }) #define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START)) -- cgit v1.2.3