[PATCH blktests v4 17/17] nvme/rc,srp/rc,common/multipath-over-rdma: rename use_rxe to USE_RXE

[Shin'ichiro Kawasaki]

To follow uppercase letter guide of environment variables, rename
use_rxe to USE_RXE.

Reviewed-by: Daniel Wagner <dwagner at suse.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki at wdc.com>
---
 Documentation/running-tests.md | 6 ++++--
 common/multipath-over-rdma     | 5 +++--
 tests/nvme/rc                  | 2 +-
 tests/srp/rc                   | 2 +-
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/Documentation/running-tests.md b/Documentation/running-tests.md
index 7bd0885..968702e 100644
--- a/Documentation/running-tests.md
+++ b/Documentation/running-tests.md
@@ -132,9 +132,11 @@ NVMET_TRTYPES=rdma ./check nvme/
 ./check srp/
 
 To use the rdma_rxe driver:
-use_rxe=1 NVMET_TRTYPES=rdma ./check nvme/
-use_rxe=1 ./check srp/
+USE_RXE=1 NVMET_TRTYPES=rdma ./check nvme/
+USE_RXE=1 ./check srp/
 ```
+'USE_RXE' had the old name 'use_rxe'. The old name is still usable but not
+recommended.
 
 ### Normal user
 
diff --git a/common/multipath-over-rdma b/common/multipath-over-rdma
index ee05100..d0f4d26 100644
--- a/common/multipath-over-rdma
+++ b/common/multipath-over-rdma
@@ -12,12 +12,13 @@ filesystem_type=ext4
 fio_aux_path=/tmp/fio-state-files
 memtotal=$(sed -n 's/^MemTotal:[[:blank:]]*\([0-9]*\)[[:blank:]]*kB$/\1/p' /proc/meminfo)
 max_ramdisk_size=$((1<<25))
-use_rxe=${use_rxe:-""}
 ramdisk_size=$((memtotal*(1024/16)))  # in bytes
 if [ $ramdisk_size -gt $max_ramdisk_size ]; then
 	ramdisk_size=$max_ramdisk_size
 fi
 
+_check_conflict_and_set_default USE_RXE use_rxe ""
+
 _have_legacy_dm() {
 	_have_kernel_config_file || return
 	if ! _check_kernel_option DM_MQ_DEFAULT; then
@@ -396,7 +397,7 @@ start_soft_rdma() {
 	local type
 
 	{
-	if [ -z "$use_rxe" ]; then
+	if [ -z "$USE_RXE" ]; then
 		modprobe siw || return $?
 		type=siw
 	else
diff --git a/tests/nvme/rc b/tests/nvme/rc
index 6fc0020..c1ddf41 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -97,7 +97,7 @@ _nvme_requires() {
 		_have_driver nvmet-rdma
 		_have_configfs
 		_have_program rdma
-		if [ -n "$use_rxe" ]; then
+		if [ -n "$USE_RXE" ]; then
 			_have_driver rdma_rxe
 		else
 			_have_driver siw
diff --git a/tests/srp/rc b/tests/srp/rc
index c77ef6c..85bd1dd 100755
--- a/tests/srp/rc
+++ b/tests/srp/rc
@@ -51,7 +51,7 @@ group_requires() {
 	_have_module ib_uverbs
 	_have_module null_blk
 	_have_module rdma_cm
-	if [ -n "$use_rxe" ]; then
+	if [ -n "$USE_RXE" ]; then
 		_have_module rdma_rxe
 	else
 		_have_module siw
-- 
2.44.0