debian/scripts/misc/find-obsolete-firmware

   1 #!/bin/bash
   2 #
   3 # Find all duplicate or obsolete firmware that is being carried
   4 # in the kernel firmware directory. Compare these files against
   5 # the linux-firmware package for the approriate release. For example,
   6 # assuming this is raring, then compare the kernel firmware files
   7 # against the raring branch of linux-firmware.
   8 #
   9 # Example: $0 ~/ubuntu/linux-firmware-raring
  10
  11 USEAGE="$0 LINUX-FIRMWARE"
  12
  13 . debian/debian.env
  14
  15 NFWINFO="`find $DEBIAN -name fwinfo|wc -l`"
  16 if [ ! "$NFWINFO" = "1" ]
  17 then
  18         echo Your repo is hosed. There can only be one fwinfo file.
  19         find $DEBIAN -name fwinfo
  20         exit 1
  21 fi
  22
  23 FWINFO="`pwd`/`find $DEBIAN -name fwinfo`"
  24
  25 if [ "$1" = "" ]
  26 then
  27         echo $USEAGE
  28         exit 1
  29 fi
  30 FW="$1"
  31
  32 if [ ! -f $FW/WHENCE ]
  33 then
  34         echo Bogus linux-firmware directory
  35         exit 1
  36 fi
  37 if ! egrep -q "^firmware:" $FWINFO
  38 then
  39         echo Bogus firmware info file
  40         exit 1
  41 fi
  42
  43 #
  44 # Prepare the tree and make firmware.
  45 #
  46 TEE="tee -a"
  47 LO=`pwd`/firmware.txt
  48 LF=`pwd`/lib/firmware
  49 rm -rf debian/build $LF $LO
  50 fakeroot debian/rules clean prepare-generic
  51 cp debian/build/build-generic/.config .
  52 mkdir -p $LF
  53 make firmware_install INSTALL_MOD_PATH=`pwd`
  54
  55 cd $LF
  56 find . -type f | while read f
  57 do
  58         BN="`basename $f`"
  59
  60         if ! grep -q $BN $FWINFO
  61         then
  62                 echo "Unused firmware: $f" | $TEE $LO
  63         else
  64                 if [ -f $FW/$f ]
  65                 then
  66                         if ! cmp $FW/$f $f
  67                         then
  68                                 echo "$f differs" | $TEE $LO
  69                         else
  70                                 echo "$f is duplicated" | $TEE $LO
  71                         fi
  72                 else
  73                         echo "$f does not exist in $FW" | $TEE $LO
  74                 fi
  75         fi
  76 done
  77
  78 #
  79 # Check for firmware files referenced by the kernel
  80 # that do not exist in either location.
  81 #
  82 cat $FWINFO | while read fwi f
  83 do
  84         if [ ! -f $f ]
  85         then
  86                 if [ ! -f $FW/$f ]
  87                 then
  88                         echo "Missing firmware $f" | $TEE $LO
  89                 fi
  90         fi
  91 done
  92