func populateLocationConstraint(r *aws.Request) {
if r.ParamsFilled() && r.Config.Region != "us-east-1" {
in := r.Params.(*CreateBucketInput)
if in.CreateBucketConfiguration == nil {
r.Params = awsutil.CopyOf(r.Params)
in = r.Params.(*CreateBucketInput)
in.CreateBucketConfiguration = &CreateBucketConfiguration{
LocationConstraint: &r.Config.Region,
}
}
}
}