From: Victor Kamensky Date: Thu, 12 Jun 2014 16:30:12 +0000 (-0700) Subject: ARM64: KVM: set and get of sys registers in BE case X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=26c99af1018c35020cfad1d20f02acb224807655;p=deliverable%2Flinux.git ARM64: KVM: set and get of sys registers in BE case Since size of all sys registers is always 8 bytes. Current code is actually endian agnostic. Just clean it up a bit. Removed comment about little endian. Change type of pointer from 'void *' to 'u64 *' to enforce stronger type checking. Signed-off-by: Victor Kamensky Acked-by: Christoffer Dall Acked-by: Marc Zyngier Signed-off-by: Marc Zyngier --- diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 34f25a590bd7..f0ceceffa95a 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -776,17 +776,15 @@ static struct sys_reg_desc invariant_sys_regs[] = { NULL, get_ctr_el0 }, }; -static int reg_from_user(void *val, const void __user *uaddr, u64 id) +static int reg_from_user(u64 *val, const void __user *uaddr, u64 id) { - /* This Just Works because we are little endian. */ if (copy_from_user(val, uaddr, KVM_REG_SIZE(id)) != 0) return -EFAULT; return 0; } -static int reg_to_user(void __user *uaddr, const void *val, u64 id) +static int reg_to_user(void __user *uaddr, const u64 *val, u64 id) { - /* This Just Works because we are little endian. */ if (copy_to_user(uaddr, val, KVM_REG_SIZE(id)) != 0) return -EFAULT; return 0;