"What if everything in the kernel works just fine for you, and
there's nothing that you'd like to fix? Well, don't despair, the
Linux kernel developers need all the help they can get, and have
plenty of code in the tree that's just waiting to get cleaned up.
One example is the code in the drivers/staging/ tree, which
consists of a lot of drivers that do not meet the normal Linux
kernel coding guidelines. The code is in that location so that
other developers can help on cleaning it up before it and gets
merged into the main portion of the Linux kernel tree."