util/scripts/find-unused-kconfig-symbols.sh

   1 #!/bin/sh
   2 # Copyright (c) 2015 Google Inc.
   3 #
   4 # Permission to use, copy, modify, and/or distribute this software for
   5 # any purpose with or without fee is hereby granted, provided that the
   6 # above copyright notice and this permission notice appear in all copies.
   7 #
   8 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
   9 # WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
  10 # OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15
  16 # FIXME/NOTE: some false positives in dmp/vortex86ex
  17 KCONFIG_FILE_LIST=$(git ls-files |grep "/Kconfig$")
  18 for i in $(git grep -h "^config " $KCONFIG_FILE_LIST |cut -d' ' -f2 |sort -u); do
  19         git grep -q "CONFIG_$i" || \
  20         git grep -Eq "(depends on |select |default ).*$i" $KCONFIG_FILE_LIST || \
  21         echo $i not found
  22 done | cat