title: "__floatsidf" undefined warning when compiling kernel module
body: <p>I was writing a loadable kernel module and when trying to compile it, the linker fails with the following message: </p>
  
  <pre><code>*** Warning: "__floatsidf" [/testing/Something.ko] undefined!
  </code></pre>
  
  <p>I am NOT using floating point variables, so that's not it. What is the cause of such errors?</p>
  
  <p>Note: I'm using <code>Linux ubuntu kernel v. 3.5.0-23-generic</code></p>