linux-kernel - updated list of "unused" CONFIG variables now online

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Date:	Mon, 28 Dec 2009 06:06:17 -0500 (EST)
From:	"Robert P. J. Day" <rpjday@...shcourse.ca>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: updated list of "unused" CONFIG variables now online

  based on this morning's "git pull", i've updated the list of
tree-wide CONFIG variables that are defined in a Kconfig file
somewhere but don't appear to be tested:

http://www.crashcourse.ca/wiki/index.php/Unused_CONFIG_variables

  a note:  some of those variables are starting to look depressingly
familiar as they've been around for *years*.  in many cases, they
don't hurt as they simply have no value if they're defined but not
tested.

  on the other hand, that list is a good way to identify typoes, as in
this example:

  ===== USB_ETH_EEM
  drivers/usb/gadget/Kconfig:681:config USB_ETH_EEM
  drivers/usb/gadget/ether.c:262:#ifdef USB_ETH_EEM

that's clearly a typo since the #ifdef should be using a "CONFIG_"
prefix -- that's the sort of thing that's flagged at that page.

  it's all broken down by top-level directory and subdirectory so pick
a subdirectory and see if anything looks odd or removable.

rday
--

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

            Linux Consulting, Training and Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Twitter:                                       http://twitter.com/rpjday
========================================================================
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