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Thu, 19 Oct 2023 00:22:34 +0000 Date: Thu, 19 Oct 2023 08:21:36 +0800 From: kernel test robot To: Linus Walleij Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: arch/arm/include/asm/memory.h:298:23: warning: array subscript -1 is outside array bounds of 'const void[2147483647]' Message-ID: <202310190854.yTRUMqLL-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dd72f9c7e512da377074d47d990564959b772643 commit: a9ff6961601d9aa0c42b6eb7d850371f31b1f5e6 ARM: mm: Make virt_to_pfn() a static inline date: 5 months ago config: arm-randconfig-r022-20230725 (https://download.01.org/0day-ci/archive/20231019/202310190854.yTRUMqLL-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231019/202310190854.yTRUMqLL-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202310190854.yTRUMqLL-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/arm/include/asm/page.h:166, from arch/arm/include/asm/thread_info.h:14, from include/linux/thread_info.h:60, from include/asm-generic/preempt.h:5, from ./arch/arm/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/mm.h:7, from arch/arm/kernel/hibernate.c:17: In function 'virt_to_pfn', inlined from 'pfn_is_nosave' at arch/arm/kernel/hibernate.c:29:33: >> arch/arm/include/asm/memory.h:298:23: warning: array subscript -1 is outside array bounds of 'const void[2147483647]' [-Warray-bounds=] 298 | unsigned long kaddr = (unsigned long)p; | ^~~~~ In file included from arch/arm/include/asm/sections.h:5, from include/linux/interrupt.h:21, from include/linux/kernel_stat.h:9, from include/linux/cgroup.h:26, from include/linux/memcontrol.h:13, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/arm/kernel/hibernate.c:18: include/asm-generic/sections.h: In function 'pfn_is_nosave': include/asm-generic/sections.h:59:45: note: at offset -1 into object '__nosave_end' of size [0, 2147483647] 59 | extern __visible const void __nosave_begin, __nosave_end; | ^~~~~~~~~~~~ vim +298 arch/arm/include/asm/memory.h 295 296 static inline unsigned long virt_to_pfn(const void *p) 297 { > 298 unsigned long kaddr = (unsigned long)p; 299 return (((kaddr - PAGE_OFFSET) >> PAGE_SHIFT) + 300 PHYS_PFN_OFFSET); 301 } 302 #define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x)) 303 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki