iotests: Drop use of bash keyword 'function'

Bash allows functions to be declared with or without the leading
keyword 'function'; but including the keyword does not comply with
POSIX syntax, and is confusing to ksh users where the use of the
keyword changes the scoping rules for functions.  Stick to the
POSIX form through iotests.

Done mechanically with:
  sed -i 's/^function //' $(git ls-files tests/qemu-iotests)

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181116215002.2124581-1-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

35 files changed, 86 insertions, 86 deletions

diff --git a/tests/qemu-iotests/035 b/tests/qemu-iotests/035
index a5716ca..85d9ef7 100755
--- a/tests/qemu-iotests/035
+++ b/tests/qemu-iotests/035
@@ -49,7 +49,7 @@ echo
 echo "creating image"
 _make_test_img $size
 
-function generate_requests() {
+generate_requests() {
     for i in $(seq 0 63); do
         echo "aio_write ${i}M 512"
         echo "aio_write ${i}M 512"
diff --git a/tests/qemu-iotests/037 b/tests/qemu-iotests/037
index 2e43b19..a11992d 100755
--- a/tests/qemu-iotests/037
+++ b/tests/qemu-iotests/037
@@ -54,7 +54,7 @@ TEST_IMG="$TEST_IMG.base"
 
 _make_test_img $size
 
-function backing_io()
+backing_io()
 {
     local offset=$1
     local sectors=$2
diff --git a/tests/qemu-iotests/038 b/tests/qemu-iotests/038
index 4e03976..575093e 100755
--- a/tests/qemu-iotests/038
+++ b/tests/qemu-iotests/038
@@ -51,7 +51,7 @@ TEST_IMG="$TEST_IMG.base"
 
 _make_test_img $size
 
-function backing_io()
+backing_io()
 {
     local offset=$1
     local sectors=$2
@@ -76,7 +76,7 @@ _make_test_img -b "$TEST_IMG.base" 6G
 echo
 echo "== Some concurrent requests touching the same cluster =="
 
-function overlay_io()
+overlay_io()
 {
     # Start with a request touching two clusters
     echo aio_write -P 0x80 2020k 80k
@@ -102,7 +102,7 @@ overlay_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io |\
 echo
 echo "== Verify image content =="
 
-function verify_io()
+verify_io()
 {
     echo read -P 31 2016k 4k
     echo read -P 0x80 2020k 80k
diff --git a/tests/qemu-iotests/046 b/tests/qemu-iotests/046
index 01c0de6..5e41d96 100755
--- a/tests/qemu-iotests/046
+++ b/tests/qemu-iotests/046
@@ -48,7 +48,7 @@ echo "== creating backing file for COW tests =="
 
 _make_test_img $size
 
-function backing_io()
+backing_io()
 {
     local offset=$1
     local sectors=$2
@@ -73,7 +73,7 @@ _make_test_img -b "$TEST_IMG.base" 6G
 echo
 echo "== Some concurrent requests touching the same cluster =="
 
-function overlay_io()
+overlay_io()
 {
 # Allocate middle of cluster 1, then write to somewhere before and after it
 cat  <<EOF
@@ -189,7 +189,7 @@ overlay_io | $QEMU_IO blkdebug::"$TEST_IMG" | _filter_qemu_io |\
 echo
 echo "== Verify image content =="
 
-function verify_io()
+verify_io()
 {
     if ($QEMU_IMG info -U -f "$IMGFMT" "$TEST_IMG" | grep "compat: 0.10" > /dev/null); then
         # For v2 images, discarded clusters are read from the backing file
diff --git a/tests/qemu-iotests/047 b/tests/qemu-iotests/047
index c168373..6e776d2 100755
--- a/tests/qemu-iotests/047
+++ b/tests/qemu-iotests/047
@@ -45,7 +45,7 @@ size=128M
 
 _make_test_img $size
 
-function qemu_io_cmds()
+qemu_io_cmds()
 {
 cat <<EOF
 write -P 0x66 0 320k
diff --git a/tests/qemu-iotests/049 b/tests/qemu-iotests/049
index 4d0ad5c..97d8a64 100755
--- a/tests/qemu-iotests/049
+++ b/tests/qemu-iotests/049
@@ -40,13 +40,13 @@ _supported_fmt qcow2
 _supported_proto file
 _supported_os Linux
 
-function filter_test_dir()
+filter_test_dir()
 {
     sed -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
         -e "s#$TEST_DIR#TEST_DIR#g"
 }
 
-function test_qemu_img()
+test_qemu_img()
 {
     echo qemu-img "$@" | filter_test_dir
     $QEMU_IMG "$@" 2>&1 | filter_test_dir
diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index a676da8..32741d7 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -43,7 +43,7 @@ _supported_os Linux
 # other than refcount_bits=16
 _unsupported_imgopts 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     (
@@ -57,7 +57,7 @@ function do_run_qemu()
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu |
         _filter_generated_node_ids | _filter_hmp
diff --git a/tests/qemu-iotests/067 b/tests/qemu-iotests/067
index f8d584f..342b2b0 100755
--- a/tests/qemu-iotests/067
+++ b/tests/qemu-iotests/067
@@ -36,7 +36,7 @@ _supported_os Linux
 # Because anything other than 16 would change the output of query-block
 _unsupported_imgopts 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     $QEMU -nographic -qmp-pretty stdio -serial none "$@"
@@ -52,7 +52,7 @@ _filter_qmp_events()
 	| tr '\t' '\n'
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp | _filter_qemu \
                           | _filter_actual_image_size \
diff --git a/tests/qemu-iotests/071 b/tests/qemu-iotests/071
index 6448e9e..6e467dc 100755
--- a/tests/qemu-iotests/071
+++ b/tests/qemu-iotests/071
@@ -40,14 +40,14 @@ _supported_fmt qcow2
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@" | _filter_imgfmt
     $QEMU -nographic -qmp stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp | _filter_qemu_io
 }
diff --git a/tests/qemu-iotests/077 b/tests/qemu-iotests/077
index a40f319..58fe893 100755
--- a/tests/qemu-iotests/077
+++ b/tests/qemu-iotests/077
@@ -48,7 +48,7 @@ _make_test_img $size
 echo
 echo "== Some concurrent requests involving RMW =="
 
-function test_io()
+test_io()
 {
 echo "open -o driver=$IMGFMT,file.align=4k blkdebug::$TEST_IMG"
 # A simple RMW request
@@ -193,7 +193,7 @@ test_io | $QEMU_IO  | _filter_qemu_io | \
 echo
 echo "== Verify image content =="
 
-function verify_io()
+verify_io()
 {
     # A simple RMW request
     echo read -P 0       0 0x200
diff --git a/tests/qemu-iotests/081 b/tests/qemu-iotests/081
index ccb6bec..edf6e61 100755
--- a/tests/qemu-iotests/081
+++ b/tests/qemu-iotests/081
@@ -42,14 +42,14 @@ _supported_fmt raw
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@" | _filter_imgfmt
     $QEMU -nographic -qmp stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp\
                           | _filter_qemu_io | _filter_generated_node_ids
diff --git a/tests/qemu-iotests/082 b/tests/qemu-iotests/082
index 14f6631..61eec63 100755
--- a/tests/qemu-iotests/082
+++ b/tests/qemu-iotests/082
@@ -40,7 +40,7 @@ _supported_fmt qcow2
 _supported_proto file nfs
 _supported_os Linux
 
-function run_qemu_img()
+run_qemu_img()
 {
     echo
     echo Testing: "$@" | _filter_testdir
diff --git a/tests/qemu-iotests/085 b/tests/qemu-iotests/085
index 2ef8407..ade68ef 100755
--- a/tests/qemu-iotests/085
+++ b/tests/qemu-iotests/085
@@ -60,7 +60,7 @@ _supported_os Linux
 
 
 # ${1}: unique identifier for the snapshot filename
-function create_single_snapshot()
+create_single_snapshot()
 {
     cmd="{ 'execute': 'blockdev-snapshot-sync',
                       'arguments': { 'device': 'virtio0',
@@ -70,7 +70,7 @@ function create_single_snapshot()
 }
 
 # ${1}: unique identifier for the snapshot filename
-function create_group_snapshot()
+create_group_snapshot()
 {
     cmd="{ 'execute': 'transaction', 'arguments':
            {'actions': [
@@ -88,7 +88,7 @@ function create_group_snapshot()
 # ${1}: unique identifier for the snapshot filename
 # ${2}: extra_params to the blockdev-add command
 # ${3}: filename
-function do_blockdev_add()
+do_blockdev_add()
 {
     cmd="{ 'execute': 'blockdev-add', 'arguments':
            { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${2}
@@ -99,7 +99,7 @@ function do_blockdev_add()
 }
 
 # ${1}: unique identifier for the snapshot filename
-function add_snapshot_image()
+add_snapshot_image()
 {
     base_image="${TEST_DIR}/$((${1}-1))-${snapshot_virt0}"
     snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}"
@@ -110,7 +110,7 @@ function add_snapshot_image()
 
 # ${1}: unique identifier for the snapshot filename
 # ${2}: expected response, defaults to 'return'
-function blockdev_snapshot()
+blockdev_snapshot()
 {
     cmd="{ 'execute': 'blockdev-snapshot',
                       'arguments': { 'node': 'virtio0',
diff --git a/tests/qemu-iotests/086 b/tests/qemu-iotests/086
index 971de7d..3cca368 100755
--- a/tests/qemu-iotests/086
+++ b/tests/qemu-iotests/086
@@ -40,7 +40,7 @@ _supported_fmt qcow2 raw
 _supported_proto file
 _supported_os Linux
 
-function run_qemu_img()
+run_qemu_img()
 {
     echo
     echo Testing: "$@" | _filter_testdir
diff --git a/tests/qemu-iotests/087 b/tests/qemu-iotests/087
index 109cdf5..f625887 100755
--- a/tests/qemu-iotests/087
+++ b/tests/qemu-iotests/087
@@ -34,14 +34,14 @@ _supported_fmt qcow2
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     $QEMU -nographic -qmp stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \
                           | _filter_qemu | _filter_imgfmt \
@@ -102,7 +102,7 @@ echo === aio=native without O_DIRECT ===
 echo
 
 # Skip this test if AIO is not enabled in this build
-function run_qemu_filter_aio()
+run_qemu_filter_aio()
 {
     run_qemu "$@" | \
         sed -e 's/is not supported in this build/it requires cache.direct=on, which was not specified/'
diff --git a/tests/qemu-iotests/099 b/tests/qemu-iotests/099
index 4a6275d..578808b 100755
--- a/tests/qemu-iotests/099
+++ b/tests/qemu-iotests/099
@@ -45,12 +45,12 @@ _supported_os Linux
 _unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" \
     "subformat=twoGbMaxExtentSparse"
 
-function do_run_qemu()
+do_run_qemu()
 {
     $QEMU -nographic -qmp stdio -serial none "$@"
 }
 
-function run_qemu()
+run_qemu()
 {
     # Get the "file": "foo" entry ($foo may only contain escaped double quotes,
     # which is how we can extract it)
@@ -59,7 +59,7 @@ function run_qemu()
         | sed -e 's/^.*"file": "\(\(\\"\|[^"]\)*\)".*$/\1/' -e 's/\\"/"/g'
 }
 
-function test_qemu()
+test_qemu()
 {
     run_qemu -drive "if=none,id=drv0,$1" <<EOF
         { 'execute': 'qmp_capabilities' }
diff --git a/tests/qemu-iotests/109 b/tests/qemu-iotests/109
index 90bdae4..b51e461 100755
--- a/tests/qemu-iotests/109
+++ b/tests/qemu-iotests/109
@@ -45,7 +45,7 @@ _supported_os Linux
 
 qemu_comm_method=qmp
 
-function run_qemu()
+run_qemu()
 {
     local raw_img="$1"
     local source_img="$2"
diff --git a/tests/qemu-iotests/112 b/tests/qemu-iotests/112
index fba2965..d67e6eb 100755
--- a/tests/qemu-iotests/112
+++ b/tests/qemu-iotests/112
@@ -44,7 +44,7 @@ _supported_os Linux
 # manual setting; compat will be overridden as well
 _unsupported_imgopts refcount_bits 'compat=0.10'
 
-function print_refcount_bits()
+print_refcount_bits()
 {
     $QEMU_IMG info "$TEST_IMG" | sed -n '/refcount bits:/ s/^ *//p'
 }
diff --git a/tests/qemu-iotests/142 b/tests/qemu-iotests/142
index c7c360d..5fc488f 100755
--- a/tests/qemu-iotests/142
+++ b/tests/qemu-iotests/142
@@ -45,7 +45,7 @@ _supported_os Linux
 _default_cache_mode none
 _supported_cache_modes none directsync
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     (
@@ -59,7 +59,7 @@ function do_run_qemu()
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp
 }
@@ -88,7 +88,7 @@ echo
 files="if=none,file=$TEST_IMG,backing.file.filename=$TEST_IMG.base"
 ids="node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file"
 
-function check_cache_all()
+check_cache_all()
 {
     # cache.direct is supposed to be inherited by both bs->file and
     # bs->backing
@@ -231,7 +231,7 @@ drv_bk="if=none,file=json:{'driver':'$IMGFMT',,'file':'backing-file',,'node-name
 drv_file="if=none,driver=file,filename=$TEST_IMG,node-name=file"
 drv_img="if=none,id=blk,file=json:{'driver':'$IMGFMT',,'file':'file',,'backing':'backing',,'node-name':'image'}"
 
-function check_cache_all_separate()
+check_cache_all_separate()
 {
     # Check cache.direct
 
diff --git a/tests/qemu-iotests/153 b/tests/qemu-iotests/153
index 00092b8..3120a61 100755
--- a/tests/qemu-iotests/153
+++ b/tests/qemu-iotests/153
@@ -70,7 +70,7 @@ _run_cmd()
     (echo "$@"; "$@" 2>&1 1>/dev/null) | _filter_testdir
 }
 
-function _do_run_qemu()
+_do_run_qemu()
 {
     (
         if ! test -t 0; then
@@ -82,7 +82,7 @@ function _do_run_qemu()
     ) | $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
 }
 
-function _run_qemu_with_images()
+_run_qemu_with_images()
 {
     _do_run_qemu \
         $(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
diff --git a/tests/qemu-iotests/157 b/tests/qemu-iotests/157
index c3231b7..6fb2659 100755
--- a/tests/qemu-iotests/157
+++ b/tests/qemu-iotests/157
@@ -40,7 +40,7 @@ _supported_fmt generic
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     (
         if ! test -t 0; then
@@ -53,7 +53,7 @@ function do_run_qemu()
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_imgfmt \
                           | _filter_qemu | _filter_generated_node_ids
diff --git a/tests/qemu-iotests/172 b/tests/qemu-iotests/172
index c5ee33e..1e60a7e 100755
--- a/tests/qemu-iotests/172
+++ b/tests/qemu-iotests/172
@@ -46,7 +46,7 @@ if [ "$QEMU_DEFAULT_MACHINE" != "pc" ]; then
     _notrun "Requires a PC machine"
 fi
 
-function do_run_qemu()
+do_run_qemu()
 {
     (
         if ! test -t 0; then
@@ -59,7 +59,7 @@ function do_run_qemu()
     echo
 }
 
-function check_floppy_qtree()
+check_floppy_qtree()
 {
     echo
     echo Testing: "$@" | _filter_testdir
@@ -75,7 +75,7 @@ function check_floppy_qtree()
     _filter_win32 | _filter_qemu
 }
 
-function check_cache_mode()
+check_cache_mode()
 {
     echo "info block none0" |
     QEMU_OPTIONS="" do_run_qemu -drive if=none,file="$TEST_IMG" "$@" |
diff --git a/tests/qemu-iotests/176 b/tests/qemu-iotests/176
index c091d0b..4ecd589 100755
--- a/tests/qemu-iotests/176
+++ b/tests/qemu-iotests/176
@@ -50,7 +50,7 @@ _supported_os Linux
 # Persistent dirty bitmaps require compat=1.1
 _unsupported_imgopts 'compat=0.10'
 
-function run_qemu()
+run_qemu()
 {
     $QEMU -nographic -qmp stdio -serial none "$@" 2>&1 \
 	| _filter_testdir | _filter_qmp | _filter_qemu \
diff --git a/tests/qemu-iotests/177 b/tests/qemu-iotests/177
index 7bf8e1d..f0c1155 100755
--- a/tests/qemu-iotests/177
+++ b/tests/qemu-iotests/177
@@ -85,7 +85,7 @@ $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
 echo
 echo "== verify image content =="
 
-function verify_io()
+verify_io()
 {
     if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" |
 	    grep "compat: 0.10" > /dev/null); then
diff --git a/tests/qemu-iotests/184 b/tests/qemu-iotests/184
index 2f3259d..0af7a73 100755
--- a/tests/qemu-iotests/184
+++ b/tests/qemu-iotests/184
@@ -34,14 +34,14 @@ trap "exit \$status" 0 1 2 3 15
 
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@" | _filter_imgfmt
     $QEMU -nographic -qmp-pretty stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp\
                           | _filter_qemu_io | _filter_generated_node_ids \
diff --git a/tests/qemu-iotests/186 b/tests/qemu-iotests/186
index 29681bf..c27dc95 100755
--- a/tests/qemu-iotests/186
+++ b/tests/qemu-iotests/186
@@ -44,7 +44,7 @@ if [ "$QEMU_DEFAULT_MACHINE" != "pc" ]; then
     _notrun "Requires a PC machine"
 fi
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
 
@@ -59,7 +59,7 @@ function do_run_qemu()
     echo
 }
 
-function check_info_block()
+check_info_block()
 {
     echo "info block" |
     do_run_qemu "$@" | _filter_win32 | _filter_hmp | _filter_qemu |
diff --git a/tests/qemu-iotests/195 b/tests/qemu-iotests/195
index f56f255..a977c97 100755
--- a/tests/qemu-iotests/195
+++ b/tests/qemu-iotests/195
@@ -41,14 +41,14 @@ _supported_fmt qcow2
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     $QEMU -nographic -qmp-pretty stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_imgfmt | _filter_qemu \
                           | _filter_qmp | _filter_qemu_io \
diff --git a/tests/qemu-iotests/204 b/tests/qemu-iotests/204
index 57f3afe..30f0653 100755
--- a/tests/qemu-iotests/204
+++ b/tests/qemu-iotests/204
@@ -93,7 +93,7 @@ $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
 echo
 echo "== verify image content =="
 
-function verify_io()
+verify_io()
 {
     echo read -P 22 0 1000
     echo read -P 33 1000 128k
diff --git a/tests/qemu-iotests/223 b/tests/qemu-iotests/223
index 58a3f3f..72419e0 100755
--- a/tests/qemu-iotests/223
+++ b/tests/qemu-iotests/223
@@ -42,14 +42,14 @@ _supported_os Linux
 # Persistent dirty bitmaps require compat=1.1
 _unsupported_imgopts 'compat=0.10'
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     $QEMU -nographic -qmp stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \
                           | _filter_qemu | _filter_imgfmt \
diff --git a/tests/qemu-iotests/227 b/tests/qemu-iotests/227
index 43f2323..be1b636 100755
--- a/tests/qemu-iotests/227
+++ b/tests/qemu-iotests/227
@@ -40,14 +40,14 @@ _supported_fmt generic
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     $QEMU -nographic -qmp-pretty stdio -serial none "$@"
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \
                           | _filter_qemu | _filter_imgfmt \
diff --git a/tests/qemu-iotests/232 b/tests/qemu-iotests/232
index b125e54..0708b8b 100755
--- a/tests/qemu-iotests/232
+++ b/tests/qemu-iotests/232
@@ -41,7 +41,7 @@ _supported_fmt generic
 _supported_proto file
 _supported_os Linux
 
-function do_run_qemu()
+do_run_qemu()
 {
     echo Testing: "$@"
     (
@@ -55,13 +55,13 @@ function do_run_qemu()
     echo
 }
 
-function run_qemu()
+run_qemu()
 {
     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
         _filter_generated_node_ids | _filter_imgfmt
 }
 
-function run_qemu_info_block()
+run_qemu_info_block()
 {
     echo "info block -n" | run_qemu "$@" | grep -e "(file" -e "QEMU_PROG"
 }
diff --git a/tests/qemu-iotests/common.nbd b/tests/qemu-iotests/common.nbd
index 0f4497a..233187a 100644
--- a/tests/qemu-iotests/common.nbd
+++ b/tests/qemu-iotests/common.nbd
@@ -23,7 +23,7 @@ nbd_unix_socket="${TEST_DIR}/qemu-nbd.sock"
 nbd_tcp_addr="127.0.0.1"
 nbd_pid_file="${TEST_DIR}/qemu-nbd.pid"
 
-function nbd_server_stop()
+nbd_server_stop()
 {
     local NBD_PID
     if [ -f "$nbd_pid_file" ]; then
@@ -36,7 +36,7 @@ function nbd_server_stop()
     rm -f "$nbd_unix_socket"
 }
 
-function nbd_server_wait_for_unix_socket()
+nbd_server_wait_for_unix_socket()
 {
     pid=$1
 
@@ -57,14 +57,14 @@ function nbd_server_wait_for_unix_socket()
     exit 1
 }
 
-function nbd_server_start_unix_socket()
+nbd_server_start_unix_socket()
 {
     nbd_server_stop
     $QEMU_NBD -v -t -k "$nbd_unix_socket" "$@" &
     nbd_server_wait_for_unix_socket $!
 }
 
-function nbd_server_set_tcp_port()
+nbd_server_set_tcp_port()
 {
     (ss --help) >/dev/null 2>&1 || _notrun "ss utility not found, skipping test"
 
@@ -80,7 +80,7 @@ function nbd_server_set_tcp_port()
     exit 1
 }
 
-function nbd_server_wait_for_tcp_socket()
+nbd_server_wait_for_tcp_socket()
 {
     pid=$1
 
@@ -101,7 +101,7 @@ function nbd_server_wait_for_tcp_socket()
     exit 1
 }
 
-function nbd_server_start_tcp_socket()
+nbd_server_start_tcp_socket()
 {
     nbd_server_stop
     $QEMU_NBD -v -t -b $nbd_tcp_addr -p $nbd_tcp_port "$@" &
diff --git a/tests/qemu-iotests/common.pattern b/tests/qemu-iotests/common.pattern
index 34f4a8d..b67bb34 100644
--- a/tests/qemu-iotests/common.pattern
+++ b/tests/qemu-iotests/common.pattern
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-function do_is_allocated() {
+do_is_allocated() {
     local start=$1
     local size=$2
     local step=$3
@@ -27,11 +27,11 @@ function do_is_allocated() {
     done
 }
 
-function is_allocated() {
+is_allocated() {
     do_is_allocated "$@" | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
 }
 
-function do_io() {
+do_io() {
     local op=$1
     local start=$2
     local size=$3
@@ -45,22 +45,22 @@ function do_io() {
     done
 }
 
-function io_pattern() {
+io_pattern() {
     do_io "$@" | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
 }
 
-function io() {
+io() {
     local start=$2
     local pattern=$(( (start >> 9) % 256 ))
 
     do_io "$@" $pattern | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
 }
 
-function io_zero() {
+io_zero() {
     do_io "$@" 0 | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
 }
 
-function io_test() {
+io_test() {
     local op=$1
     local offset=$2
     local cluster_size=$3
@@ -100,7 +100,7 @@ function io_test() {
     offset=$((offset + num_large * ( l2_size + half_cluster )))
 }
 
-function io_test2() {
+io_test2() {
     local orig_offset=$1
     local cluster_size=$2
     local num=$3
diff --git a/tests/qemu-iotests/common.qemu b/tests/qemu-iotests/common.qemu
index dadde2a..7c87b89 100644
--- a/tests/qemu-iotests/common.qemu
+++ b/tests/qemu-iotests/common.qemu
@@ -60,7 +60,7 @@ _in_fd=4
 # $3: A string to search for in the response; if found, this indicates
 #     failure and the test is either aborted (if $qemu_error_no_exit
 #     is not set) or ${QEMU_STATUS[$1]} is set to -1 (otherwise).
-function _timed_wait_for()
+_timed_wait_for()
 {
     local h=${1}
     shift
@@ -131,7 +131,7 @@ function _timed_wait_for()
 # strings the response will be scanned for.  The first of the two
 # indicates success, the latter indicates failure.  Failure is handled
 # like a timeout.
-function _send_qemu_cmd()
+_send_qemu_cmd()
 {
     local h=${1}
     local count=1
@@ -186,7 +186,7 @@ function _send_qemu_cmd()
 # Returns:
 # $QEMU_HANDLE: set to a handle value to communicate with this QEMU instance.
 #
-function _launch_qemu()
+_launch_qemu()
 {
     local comm=
     local fifo_out=
@@ -262,7 +262,7 @@ function _launch_qemu()
 # If $wait is set to anything other than the empty string, the process will not
 # be killed but only waited for, and any output will be forwarded to stdout. If
 # $wait is empty, the process will be killed and all output will be suppressed.
-function _cleanup_qemu()
+_cleanup_qemu()
 {
     # QEMU_PID[], QEMU_IN[], QEMU_OUT[] all use same indices
     for i in "${!QEMU_OUT[@]}"
diff --git a/tests/qemu-iotests/common.tls b/tests/qemu-iotests/common.tls
index cecab26..39f17c1 100644
--- a/tests/qemu-iotests/common.tls
+++ b/tests/qemu-iotests/common.tls
@@ -20,7 +20,7 @@
 
 tls_dir="${TEST_DIR}/tls"
 
-function tls_x509_cleanup()
+tls_x509_cleanup()
 {
     rm -f "${tls_dir}"/*.pem
     rm -f "${tls_dir}"/*/*.pem
@@ -29,7 +29,7 @@ function tls_x509_cleanup()
 }
 
 
-function tls_x509_init()
+tls_x509_init()
 {
     mkdir -p "${tls_dir}"
 
@@ -58,7 +58,7 @@ EOF
 }
 
 
-function tls_x509_create_root_ca()
+tls_x509_create_root_ca()
 {
     name=${1:-ca-cert}
 
@@ -77,7 +77,7 @@ EOF
 }
 
 
-function tls_x509_create_server()
+tls_x509_create_server()
 {
     caname=$1
     name=$2
@@ -108,7 +108,7 @@ EOF
 }
 
 
-function tls_x509_create_client()
+tls_x509_create_client()
 {
     caname=$1
     name=$2