From: Christian Borntraeger <[EMAIL PROTECTED]>
kvm_dev_ioctl casts the arg value to void __user *, just to recast it
again to long. This seems unnecessary.
According to objdump the binary code on x86 is unchanged by this patch.
Signed-off-by: Christian Borntraeger <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d3cb4cc..f095b73 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1188,7 +1188,6 @@ static int kvm_dev_ioctl_create_vm(void)
static long kvm_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
- void __user *argp = (void __user *)arg;
long r = -EINVAL;
switch (ioctl) {
@@ -1205,7 +1204,7 @@ static long kvm_dev_ioctl(struct file *filp,
r = kvm_dev_ioctl_create_vm();
break;
case KVM_CHECK_EXTENSION:
- r = kvm_dev_ioctl_check_extension((long)argp);
+ r = kvm_dev_ioctl_check_extension(arg);
break;
case KVM_GET_VCPU_MMAP_SIZE:
r = -EINVAL;
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