[linux-block.git] / scripts / patch-kernel

#! /bin/sh
# SPDX-License-Identifier: GPL-2.0
# Script to apply kernel patches.
#   usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
#     The source directory defaults to /usr/src/linux, and the patch
#     directory defaults to the current directory.
# e.g.
#   scripts/patch-kernel . ..
#      Update the kernel tree in the current directory using patches in the
#      directory above to the latest Linus kernel
#   scripts/patch-kernel . .. -ac
#      Get the latest Linux kernel and patch it with the latest ac patch
#   scripts/patch-kernel . .. 2.4.9
#      Gets standard kernel 2.4.9
#   scripts/patch-kernel . .. 2.4.9 -ac
#      Gets 2.4.9 with latest ac patches
#   scripts/patch-kernel . .. 2.4.9 -ac11
#      Gets 2.4.9 with ac patch ac11
#   Note: It uses the patches relative to the Linus kernels, not the
#   ac to ac relative patches
#
# It determines the current kernel version from the top-level Makefile.
# It then looks for patches for the next sublevel in the patch directory.
# This is applied using "patch -p1 -s" from within the kernel directory.
# A check is then made for "*.rej" files to see if the patch was
# successful.  If it is, then all of the "*.orig" files are removed.
#
#       Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
#
# Added support for handling multiple types of compression. What includes
# gzip, bzip, bzip2, zip, compress, and plaintext.
#
#       Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
#
# Added ability to stop at a given version number
# Put the full version number (i.e. 2.3.31) as the last parameter
#       Dave Gilbert <linux@treblig.org>, 11th December 1999.

# Fixed previous patch so that if we are already at the correct version
# not to patch up.
#
# Added -ac option, use -ac or -ac9 (say) to stop at a particular version
#       Dave Gilbert <linux@treblig.org>, 29th September 2001.
#
# Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.);
# update usage message;
# fix some whitespace damage;
# be smarter about stopping when current version is larger than requested;
#	Randy Dunlap <rdunlap@xenotime.net>, 2004-AUG-18.
#
# Add better support for (non-incremental) 2.6.x.y patches;
# If an ending version number if not specified, the script automatically
# increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found;
# however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented
# but must be specified fully.
#
# patch-kernel does not normally support reverse patching, but does so when
# applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z
# is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z).
#	Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08.

PNAME=patch-kernel

# Set directories from arguments, or use defaults.
sourcedir=${1-/usr/src/linux}
patchdir=${2-.}
stopvers=${3-default}

if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then
cat << USAGE
usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
  source directory defaults to /usr/src/linux,
  patch directory defaults to the current directory,
  stopversion defaults to <all in patchdir>.
USAGE
exit 1
fi

# See if we have any -ac options
for PARM in $*
do
  case $PARM in
	  -ac*)
		  gotac=$PARM;

	esac;
done

# ---------------------------------------------------------------------------
# arg1 is filename
noFile () {
	echo "cannot find patch file: ${patch}"
	exit 1
}

# ---------------------------------------------------------------------------
backwards () {
	echo "$PNAME does not support reverse patching"
	exit 1
}

# ---------------------------------------------------------------------------
# Find a file, first parameter is basename of file
# it tries many compression mechanisms and sets variables to say how to get it
findFile () {
  filebase=$1;

  if [ -r ${filebase}.gz ]; then
		ext=".gz"
		name="gzip"
		uncomp="gunzip -dc"
  elif [ -r ${filebase}.bz  ]; then
		ext=".bz"
		name="bzip"
		uncomp="bunzip -dc"
  elif [ -r ${filebase}.bz2 ]; then
		ext=".bz2"
		name="bzip2"
		uncomp="bunzip2 -dc"
  elif [ -r ${filebase}.xz ]; then
                ext=".xz"
                name="xz"
                uncomp="xz -dc"
  elif [ -r ${filebase}.zip ]; then
		ext=".zip"
		name="zip"
		uncomp="unzip -d"
  elif [ -r ${filebase}.Z ]; then
		ext=".Z"
		name="uncompress"
		uncomp="uncompress -c"
  elif [ -r ${filebase} ]; then
		ext=""
		name="plaintext"
		uncomp="cat"
  else
	return 1;
  fi

  return 0;
}

# ---------------------------------------------------------------------------
# Apply a patch and check it goes in cleanly
# First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension

applyPatch () {
  echo -n "Applying $1 (${name})... "
  if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir
  then
    echo "done."
  else
    echo "failed.  Clean up yourself."
    return 1;
  fi
  if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
  then
    echo "Aborting.  Reject files found."
    return 1;
  fi
  # Remove backup files
  find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;

  return 0;
}

# ---------------------------------------------------------------------------
# arg1 is patch filename
reversePatch () {
	echo -n "Reversing $1 (${name}) ... "
	if $uncomp ${patchdir}/"$1"${ext} | patch -p1 -Rs -N -E -d $sourcedir
	then
		echo "done."
	else
		echo "failed.  Clean it up."
		exit 1
	fi
	if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
	then
		echo "Aborting.  Reject files found."
		return 1
	fi
	# Remove backup files
	find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;

	return 0
}

# set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION
# force $TMPFILEs below to be in local directory: a slash character prevents
# the dot command from using the search path.
TMPFILE=`mktemp ./.tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; }
grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE
tr -d [:blank:] < $TMPFILE > $TMPFILE.1
. $TMPFILE.1
rm -f $TMPFILE*
if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
then
    echo "unable to determine current kernel version" >&2
    exit 1
fi

NAME=`grep ^NAME $sourcedir/Makefile`
NAME=${NAME##*=}

echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)"

# strip EXTRAVERSION to just a number (drop leading '.' and trailing additions)
EXTRAVER=
if [ x$EXTRAVERSION != "x" ]
then
	EXTRAVER=${EXTRAVERSION#.}
	EXTRAVER=${EXTRAVER%%[[:punct:]]*}
	#echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER"
fi

#echo "stopvers=$stopvers"
if [ $stopvers != "default" ]; then
	STOPSUBLEVEL=`echo $stopvers | cut -d. -f3`
	STOPEXTRA=`echo $stopvers | cut -d. -f4`
	STOPFULLVERSION=${stopvers%%.$STOPEXTRA}
	#echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/"
else
	STOPSUBLEVEL=9999
	STOPEXTRA=9999
fi

# This all assumes a 2.6.x[.y] kernel tree.
# Don't allow backwards/reverse patching.
if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
	backwards
fi

if [ x$EXTRAVER != "x" ]; then
	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER"
else
	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
fi

if [ x$EXTRAVER != "x" ]; then
	echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL"
	patch="patch-${CURRENTFULLVERSION}"
	findFile $patchdir/${patch} || noFile ${patch}
	reversePatch ${patch} || exit 1
fi

# now current is 2.6.x, with no EXTRA applied,
# so update to target SUBLEVEL (2.6.SUBLEVEL)
# and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested.
# If not ending sublevel is specified, it is incremented until
# no further sublevels are found.

if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
while :				# incrementing SUBLEVEL (s in v.p.s)
do
    CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
    EXTRAVER=
    if [ x$STOPFULLVERSION = x$CURRENTFULLVERSION ]; then
        echo "Stopping at $CURRENTFULLVERSION base as requested."
        break
    fi

    SUBLEVEL=$(($SUBLEVEL + 1))
    FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
    #echo "#___ trying $FULLVERSION ___"

    if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) ]; then
	echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)"
	exit 1
    fi

    patch=patch-$FULLVERSION
    # See if the file exists and find extension
    findFile $patchdir/${patch} || noFile ${patch}

    # Apply the patch and check all is OK
    applyPatch $patch || break
done
#echo "#___sublevel all done"
fi

# There is no incremental searching for extraversion...
if [ "$STOPEXTRA" != "" ]; then
while :				# just to allow break
do
# apply STOPEXTRA directly (not incrementally) (x in v.p.s.x)
	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA"
	#echo "#... trying $FULLVERSION ..."
	patch=patch-$FULLVERSION

	# See if the file exists and find extension
	findFile $patchdir/${patch} || noFile ${patch}

	# Apply the patch and check all is OK
	applyPatch $patch || break
	#echo "#___extraver all done"
	break
done
fi

if [ x$gotac != x ]; then
  # Out great user wants the -ac patches
	# They could have done -ac (get latest) or -acxx where xx=version they want
	if [ $gotac = "-ac" ]; then
	  # They want the latest version
		HIGHESTPATCH=0
		for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.*
		do
			ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'`
			# Check it is actually a recognised patch type
			findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break

		  if [ $ACVALUE -gt $HIGHESTPATCH ]; then
			  HIGHESTPATCH=$ACVALUE
		  fi
		done

		if [ $HIGHESTPATCH -ne 0 ]; then
			findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break
			applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
		else
		  echo "No -ac patches found"
		fi
	else
	  # They want an exact version
		findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || {
		  echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION.  Hohum."
			exit 1
		}
		applyPatch patch-${CURRENTFULLVERSION}${gotac}
	fi
fi
Commit	Line	Data
1da177e4	1	#! /bin/sh
b2441318	2	# SPDX-License-Identifier: GPL-2.0
1da177e4 LT	3	# Script to apply kernel patches.
	4	# usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
	5	# The source directory defaults to /usr/src/linux, and the patch
	6	# directory defaults to the current directory.
	7	# e.g.
	8	# scripts/patch-kernel . ..
	9	# Update the kernel tree in the current directory using patches in the
	10	# directory above to the latest Linus kernel
	11	# scripts/patch-kernel . .. -ac
	12	# Get the latest Linux kernel and patch it with the latest ac patch
	13	# scripts/patch-kernel . .. 2.4.9
	14	# Gets standard kernel 2.4.9
	15	# scripts/patch-kernel . .. 2.4.9 -ac
	16	# Gets 2.4.9 with latest ac patches
	17	# scripts/patch-kernel . .. 2.4.9 -ac11
	18	# Gets 2.4.9 with ac patch ac11
	19	# Note: It uses the patches relative to the Linus kernels, not the
	20	# ac to ac relative patches
	21	#
	22	# It determines the current kernel version from the top-level Makefile.
	23	# It then looks for patches for the next sublevel in the patch directory.
	24	# This is applied using "patch -p1 -s" from within the kernel directory.
	25	# A check is then made for "*.rej" files to see if the patch was
	26	# successful. If it is, then all of the "*.orig" files are removed.
	27	#
	28	# Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
	29	#
	30	# Added support for handling multiple types of compression. What includes
38385f8f	31	# gzip, bzip, bzip2, zip, compress, and plaintext.
1da177e4 LT	32	#
	33	# Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
	34	#
	35	# Added ability to stop at a given version number
	36	# Put the full version number (i.e. 2.3.31) as the last parameter
	37	# Dave Gilbert <linux@treblig.org>, 11th December 1999.
	38
	39	# Fixed previous patch so that if we are already at the correct version
	40	# not to patch up.
	41	#
	42	# Added -ac option, use -ac or -ac9 (say) to stop at a particular version
	43	# Dave Gilbert <linux@treblig.org>, 29th September 2001.
	44	#
	45	# Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.);
	46	# update usage message;
	47	# fix some whitespace damage;
	48	# be smarter about stopping when current version is larger than requested;
f4b09ebc	49	# Randy Dunlap <rdunlap@xenotime.net>, 2004-AUG-18.
1922163c RD	50	#
	51	# Add better support for (non-incremental) 2.6.x.y patches;
	52	# If an ending version number if not specified, the script automatically
	53	# increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found;
	54	# however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented
	55	# but must be specified fully.
	56	#
	57	# patch-kernel does not normally support reverse patching, but does so when
	58	# applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z
	59	# is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z).
f4b09ebc	60	# Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08.
1922163c RD	61
1922163c RD	62	PNAME=patch-kernel
1da177e4 LT	63
	64	# Set directories from arguments, or use defaults.
	65	sourcedir=${1-/usr/src/linux}
	66	patchdir=${2-.}
	67	stopvers=${3-default}
	68
22d6a6a0	69	if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then
1da177e4	70	cat << USAGE
1922163c	71	usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
1da177e4 LT	72	source directory defaults to /usr/src/linux,
	73	patch directory defaults to the current directory,
	74	stopversion defaults to <all in patchdir>.
	75	USAGE
	76	exit 1
	77	fi
	78
	79	# See if we have any -ac options
	80	for PARM in $*
	81	do
	82	case $PARM in
	83	-ac*)
	84	gotac=$PARM;
	85
	86	esac;
	87	done
	88
1922163c RD	89	# ---------------------------------------------------------------------------
	90	# arg1 is filename
	91	noFile () {
	92	echo "cannot find patch file: ${patch}"
	93	exit 1
	94	}
	95
	96	# ---------------------------------------------------------------------------
	97	backwards () {
	98	echo "$PNAME does not support reverse patching"
	99	exit 1
	100	}
	101
1da177e4 LT	102	# ---------------------------------------------------------------------------
	103	# Find a file, first parameter is basename of file
	104	# it tries many compression mechanisms and sets variables to say how to get it
	105	findFile () {
	106	filebase=$1;
	107
	108	if [ -r ${filebase}.gz ]; then
	109	ext=".gz"
	110	name="gzip"
	111	uncomp="gunzip -dc"
	112	elif [ -r ${filebase}.bz ]; then
	113	ext=".bz"
	114	name="bzip"
	115	uncomp="bunzip -dc"
	116	elif [ -r ${filebase}.bz2 ]; then
	117	ext=".bz2"
	118	name="bzip2"
	119	uncomp="bunzip2 -dc"
354fa22f SL	120	elif [ -r ${filebase}.xz ]; then
	121	ext=".xz"
	122	name="xz"
	123	uncomp="xz -dc"
1da177e4 LT	124	elif [ -r ${filebase}.zip ]; then
	125	ext=".zip"
	126	name="zip"
	127	uncomp="unzip -d"
	128	elif [ -r ${filebase}.Z ]; then
	129	ext=".Z"
	130	name="uncompress"
	131	uncomp="uncompress -c"
	132	elif [ -r ${filebase} ]; then
	133	ext=""
	134	name="plaintext"
	135	uncomp="cat"
	136	else
	137	return 1;
	138	fi
	139
	140	return 0;
	141	}
	142
	143	# ---------------------------------------------------------------------------
	144	# Apply a patch and check it goes in cleanly
	145	# First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension
	146
	147	applyPatch () {
	148	echo -n "Applying $1 (${name})... "
	149	if $uncomp ${patchdir}/$1${ext} \| patch -p1 -s -N -E -d $sourcedir
	150	then
	151	echo "done."
	152	else
	153	echo "failed. Clean up yourself."
	154	return 1;
	155	fi
	156	if [ "`find $sourcedir/ '(' -name '.rej' -o -name '..rej' ')' -print`" ]
	157	then
	158	echo "Aborting. Reject files found."
	159	return 1;
	160	fi
	161	# Remove backup files
	162	find $sourcedir/ '(' -name '.orig' -o -name '..orig' ')' -exec rm -f {} \;
38385f8f	163
1da177e4 LT	164	return 0;
	165	}
	166
1922163c RD	167	# ---------------------------------------------------------------------------
	168	# arg1 is patch filename
	169	reversePatch () {
	170	echo -n "Reversing $1 (${name}) ... "
	171	if $uncomp ${patchdir}/"$1"${ext} \| patch -p1 -Rs -N -E -d $sourcedir
	172	then
	173	echo "done."
	174	else
	175	echo "failed. Clean it up."
	176	exit 1
	177	fi
	178	if [ "`find $sourcedir/ '(' -name '.rej' -o -name '..rej' ')' -print`" ]
	179	then
	180	echo "Aborting. Reject files found."
	181	return 1
	182	fi
	183	# Remove backup files
	184	find $sourcedir/ '(' -name '.orig' -o -name '..orig' ')' -exec rm -f {} \;
	185
	186	return 0
	187	}
	188
1da177e4	189	# set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION
22d6a6a0 AM	190	# force $TMPFILEs below to be in local directory: a slash character prevents
	191	# the dot command from using the search path.
	192	TMPFILE=`mktemp ./.tmpver.XXXXXX` \|\| { echo "cannot make temp file" ; exit 1; }
1da177e4 LT	193	grep -E "^(VERSION\|PATCHLEVEL\|SUBLEVEL\|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE
1da177e4 LT	194	tr -d [:blank:] < $TMPFILE > $TMPFILE.1
22d6a6a0	195	. $TMPFILE.1
1da177e4 LT	196	rm -f $TMPFILE*
	197	if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
	198	then
	199	echo "unable to determine current kernel version" >&2
	200	exit 1
	201	fi
	202
	203	NAME=`grep ^NAME $sourcedir/Makefile`
	204	NAME=${NAME##*=}
	205
	206	echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)"
	207
	208	# strip EXTRAVERSION to just a number (drop leading '.' and trailing additions)
	209	EXTRAVER=
	210	if [ x$EXTRAVERSION != "x" ]
	211	then
22d6a6a0	212	EXTRAVER=${EXTRAVERSION#.}
1da177e4	213	EXTRAVER=${EXTRAVER%%[[:punct:]]*}
1922163c	214	#echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER"
1da177e4 LT	215	fi
	216
	217	#echo "stopvers=$stopvers"
	218	if [ $stopvers != "default" ]; then
	219	STOPSUBLEVEL=`echo $stopvers \| cut -d. -f3`
	220	STOPEXTRA=`echo $stopvers \| cut -d. -f4`
07584163	221	STOPFULLVERSION=${stopvers%%.$STOPEXTRA}
1922163c	222	#echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/"
1da177e4 LT	223	else
	224	STOPSUBLEVEL=9999
	225	STOPEXTRA=9999
	226	fi
	227
1922163c RD	228	# This all assumes a 2.6.x[.y] kernel tree.
	229	# Don't allow backwards/reverse patching.
	230	if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
	231	backwards
	232	fi
	233
	234	if [ x$EXTRAVER != "x" ]; then
1da177e4	235	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER"
1922163c	236	else
1da177e4	237	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
1922163c RD	238	fi
	239
	240	if [ x$EXTRAVER != "x" ]; then
	241	echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL"
	242	patch="patch-${CURRENTFULLVERSION}"
	243	findFile $patchdir/${patch} \|\| noFile ${patch}
	244	reversePatch ${patch} \|\| exit 1
	245	fi
1da177e4	246
1922163c RD	247	# now current is 2.6.x, with no EXTRA applied,
	248	# so update to target SUBLEVEL (2.6.SUBLEVEL)
	249	# and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested.
	250	# If not ending sublevel is specified, it is incremented until
	251	# no further sublevels are found.
	252
	253	if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
	254	while : # incrementing SUBLEVEL (s in v.p.s)
	255	do
	256	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
	257	EXTRAVER=
177525d2	258	if [ x$STOPFULLVERSION = x$CURRENTFULLVERSION ]; then
1da177e4 LT	259	echo "Stopping at $CURRENTFULLVERSION base as requested."
	260	break
	261	fi
	262
22d6a6a0	263	SUBLEVEL=$(($SUBLEVEL + 1))
1da177e4	264	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
1922163c	265	#echo "#___ trying $FULLVERSION ___"
1da177e4	266
22d6a6a0	267	if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) ]; then
1da177e4 LT	268	echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)"
	269	exit 1
	270	fi
	271
	272	patch=patch-$FULLVERSION
1da177e4	273	# See if the file exists and find extension
1922163c	274	findFile $patchdir/${patch} \|\| noFile ${patch}
1da177e4 LT	275
	276	# Apply the patch and check all is OK
	277	applyPatch $patch \|\| break
	278	done
1922163c RD	279	#echo "#___sublevel all done"
	280	fi
	281
	282	# There is no incremental searching for extraversion...
	283	if [ "$STOPEXTRA" != "" ]; then
	284	while : # just to allow break
	285	do
	286	# apply STOPEXTRA directly (not incrementally) (x in v.p.s.x)
	287	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA"
	288	#echo "#... trying $FULLVERSION ..."
	289	patch=patch-$FULLVERSION
	290
	291	# See if the file exists and find extension
	292	findFile $patchdir/${patch} \|\| noFile ${patch}
	293
	294	# Apply the patch and check all is OK
	295	applyPatch $patch \|\| break
	296	#echo "#___extraver all done"
	297	break
	298	done
	299	fi
1da177e4 LT	300
	301	if [ x$gotac != x ]; then
	302	# Out great user wants the -ac patches
	303	# They could have done -ac (get latest) or -acxx where xx=version they want
22d6a6a0	304	if [ $gotac = "-ac" ]; then
1da177e4 LT	305	# They want the latest version
	306	HIGHESTPATCH=0
	307	for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac\.
	308	do
	309	ACVALUE=`echo $PATCHNAMES \| sed -e 's/^.patch-[0-9.]-ac\([0-9]\)./\1/'`
	310	# Check it is actually a recognised patch type
	311	findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} \|\| break
	312
	313	if [ $ACVALUE -gt $HIGHESTPATCH ]; then
	314	HIGHESTPATCH=$ACVALUE
	315	fi
	316	done
	317
	318	if [ $HIGHESTPATCH -ne 0 ]; then
	319	findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} \|\| break
	320	applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
	321	else
	322	echo "No -ac patches found"
	323	fi
	324	else
	325	# They want an exact version
	326	findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} \|\| {
	327	echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION. Hohum."
	328	exit 1
	329	}
	330	applyPatch patch-${CURRENTFULLVERSION}${gotac}
	331	fi
	332	fi