[PATCH v6 6/7] common: move module_unload to common

[Sagi Grimberg <sagi@grimberg.me>]

It creates a dependency between multipath-over-rdma and test/nvmeof/rc
(and test/srp/rc) which is not a natural home for it.

Move it to common helpers.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
---
 common/rc          | 13 +++++++++++++
 tests/nvmeof-mp/rc | 13 -------------
 tests/srp/rc       | 13 -------------
 3 files changed, 13 insertions(+), 26 deletions(-)

diff --git a/common/rc b/common/rc
index 7f02103dc786..cdc0150ea5ea 100644
--- a/common/rc
+++ b/common/rc
@@ -291,3 +291,16 @@ _filter_xfs_io_error() {
 _uptime_s() {
 	awk '{ print int($1) }' /proc/uptime
 }
+
+# Arguments: module to unload ($1) and retry count ($2).
+unload_module() {
+	local i m=$1 rc=${2:-1}
+
+	[ ! -e "/sys/module/$m" ] && return 0
+	for ((i=rc;i>0;i--)); do
+		modprobe -r "$m"
+		[ ! -e "/sys/module/$m" ] && return 0
+		sleep .1
+	done
+	return 1
+}
diff --git a/tests/nvmeof-mp/rc b/tests/nvmeof-mp/rc
index b95adf047a2f..d7a7c878fb19 100755
--- a/tests/nvmeof-mp/rc
+++ b/tests/nvmeof-mp/rc
@@ -149,19 +149,6 @@ remove_mpath_devs() {
 	} &>> "$FULL"
 }
 
-# Arguments: module to unload ($1) and retry count ($2).
-unload_module() {
-	local i m=$1 rc=${2:-1}
-
-	[ ! -e "/sys/module/$m" ] && return 0
-	for ((i=rc;i>0;i--)); do
-		modprobe -r "$m"
-		[ ! -e "/sys/module/$m" ] && return 0
-		sleep .1
-	done
-	return 1
-}
-
 start_nvme_client() {
 	modprobe nvme-core dyndbg=+pmf &&
 		modprobe nvme dyndbg=+pmf &&
diff --git a/tests/srp/rc b/tests/srp/rc
index 72a3bca3b44d..7fc094b8267f 100755
--- a/tests/srp/rc
+++ b/tests/srp/rc
@@ -321,19 +321,6 @@ remove_mpath_devs() {
 	} &>> "$FULL"
 }
 
-# Arguments: module to unload ($1) and retry count ($2).
-unload_module() {
-	local i m=$1 rc=${2:-1}
-
-	[ ! -e "/sys/module/$m" ] && return 0
-	for ((i=rc;i>0;i--)); do
-		modprobe -r "$m"
-		[ ! -e "/sys/module/$m" ] && return 0
-		sleep .1
-	done
-	return 1
-}
-
 # Load the SRP initiator driver with kernel module parameters $1..$n.
 start_srp_ini() {
 	modprobe scsi_transport_srp || return $?
-- 
2.25.1