/usr/src/linux-source-3.13.0/debian/scripts/misc/find-obsolete-firmware is in linux-source-3.13.0 3.13.0-44.73.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | #!/bin/bash
#
# Find all duplicate or obsolete firmware that is being carried
# in the kernel firmware directory. Compare these files against
# the linux-firmware package for the approriate release. For example,
# assuming this is raring, then compare the kernel firmware files
# against the raring branch of linux-firmware.
#
# Example: $0 ~/ubuntu/linux-firmware-raring
USEAGE="$0 LINUX-FIRMWARE"
. debian/debian.env
NFWINFO="`find $DEBIAN -name fwinfo|wc -l`"
if [ ! "$NFWINFO" = "1" ]
then
echo Your repo is hosed. There can only be one fwinfo file.
find $DEBIAN -name fwinfo
exit 1
fi
FWINFO="`pwd`/`find $DEBIAN -name fwinfo`"
if [ "$1" = "" ]
then
echo $USEAGE
exit 1
fi
FW="$1"
if [ ! -f $FW/WHENCE ]
then
echo Bogus linux-firmware directory
exit 1
fi
if ! egrep -q "^firmware:" $FWINFO
then
echo Bogus firmware info file
exit 1
fi
#
# Prepare the tree and make firmware.
#
TEE="tee -a"
LO=`pwd`/firmware.txt
LF=`pwd`/lib/firmware
rm -rf debian/build $LF $LO
fakeroot debian/rules clean prepare-generic
cp debian/build/build-generic/.config .
mkdir -p $LF
make firmware_install INSTALL_MOD_PATH=`pwd`
(cd $LF
find . -type f | while read f
do
BN="`basename $f`"
if ! grep -q $BN $FWINFO
then
echo "Unused firmware: $f" | $TEE $LO
else
if [ -f $FW/$f ]
then
if ! cmp $FW/$f $f
then
echo "$f differs" | $TEE $LO
else
echo "$f is duplicated" | $TEE $LO
fi
else
echo "$f does not exist in $FW" | $TEE $LO
fi
fi
done)
#
# Check for firmware files referenced by the kernel
# that do not exist in either location.
#
cat $FWINFO | while read fwi f
do
if [ -s lib/firmware/$f ] || [ -s $FW/$f ]
then
continue
else
echo "Missing firmware $f" | $TEE $LO
fi
done
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