From 1dec78585328db00e33fb18dc1a6deed0e2095a5 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Wed, 19 Oct 2016 14:38:50 -0700 Subject: [PATCH] ARC: fix build warning in elf.h The cast valid since TASK_SIZE * 2 will never actually cause overflow. | CC fs/binfmt_elf.o | In file included from ../include/linux/elf.h:4:0, | from ../include/linux/module.h:15, | from ../fs/binfmt_elf.c:12: | ../fs/binfmt_elf.c: In function load_elf_binar: | ../arch/arc/include/asm/elf.h:57:29: warning: integer overflow in expression [-Woverflow] | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) | ^ | ../fs/binfmt_elf.c:921:16: note: in expansion of macro ELF_ET_DYN_BASE | load_bias = ELF_ET_DYN_BASE - vaddr; Signed-off-by: Vineet Gupta --- arch/arc/include/asm/elf.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arc/include/asm/elf.h b/arch/arc/include/asm/elf.h index 7096f97a1434..aa2d6da9d187 100644 --- a/arch/arc/include/asm/elf.h +++ b/arch/arc/include/asm/elf.h @@ -54,7 +54,7 @@ extern int elf_check_arch(const struct elf32_hdr *); * the loader. We need to make sure that it is out of the way of the program * that it will "exec", and that there is sufficient room for the brk. */ -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) +#define ELF_ET_DYN_BASE (2UL * TASK_SIZE / 3) /* * When the program starts, a1 contains a pointer to a function to be