From 9f595fd8b54809fed13fc30906ef1e90a3fcfbc9 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Sat, 9 Jul 2016 03:22:39 -0500 Subject: [PATCH] powerpc/8xx: Force VIRT_IMMR_BASE to be a positive number The asm-offsets mechanism generates signed numbers, even if the input value is explicitly unsigned. This causes a problem with older binutils (e.g. 2.23), which sign-extend a negative number when @h is applied. Thus, this instruction: cmpli cr0, r11, VIRT_IMMR_BASE@h resulted in this: Error: operand out of range (0xfffffff0 is not between 0x00000000 and 0x0000ffff) By casting to a larger type, we can force the output to be expressed as a positive number. Signed-off-by: Scott Wood Cc: Christophe Leroy --- arch/powerpc/kernel/asm-offsets.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 247f6407c7d8..b89d14c0352c 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -754,7 +754,7 @@ int main(void) DEFINE(PPC_DBELL_SERVER, PPC_DBELL_SERVER); #ifdef CONFIG_PPC_8xx - DEFINE(VIRT_IMMR_BASE, __fix_to_virt(FIX_IMMR_BASE)); + DEFINE(VIRT_IMMR_BASE, (u64)__fix_to_virt(FIX_IMMR_BASE)); #endif return 0; -- 2.20.1