KVM: remove long -> void *user -> long cast
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 <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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@ -1179,7 +1179,6 @@ static int kvm_dev_ioctl_create_vm(void)
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static long kvm_dev_ioctl(struct file *filp,
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static long kvm_dev_ioctl(struct file *filp,
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unsigned int ioctl, unsigned long arg)
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unsigned int ioctl, unsigned long arg)
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{
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{
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void __user *argp = (void __user *)arg;
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long r = -EINVAL;
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long r = -EINVAL;
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switch (ioctl) {
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switch (ioctl) {
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@ -1196,7 +1195,7 @@ static long kvm_dev_ioctl(struct file *filp,
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r = kvm_dev_ioctl_create_vm();
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r = kvm_dev_ioctl_create_vm();
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break;
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break;
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case KVM_CHECK_EXTENSION:
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case KVM_CHECK_EXTENSION:
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r = kvm_dev_ioctl_check_extension((long)argp);
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r = kvm_dev_ioctl_check_extension(arg);
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break;
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break;
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case KVM_GET_VCPU_MMAP_SIZE:
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case KVM_GET_VCPU_MMAP_SIZE:
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r = -EINVAL;
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r = -EINVAL;
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