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authorPetr Machata <petrm@nvidia.com>2021-06-08 15:44:10 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-09 00:39:07 +0300
commit0521a262f043ea521790ed2976141086c75d2f74 (patch)
tree617ff1d9bb07066ff734a9e443c77bf75738fec7
parente67dfb8d15deb33c425d0b0ee22f2e5eef54c162 (diff)
downloadlinux-0521a262f043ea521790ed2976141086c75d2f74.tar.xz
selftests: devlink_lib: Fix bouncing of netdevsim DEVLINK_DEV
In the commit referenced below, a check was added to devlink_lib that asserts the existence of a devlink device referenced by $DEVLINK_DEV. Unfortunately, several netdevsim tests point DEVLINK_DEV at a device that does not exist at the time that devlink_lib is sourced. Thus these tests spuriously fail. Fix this by introducing an override. By setting DEVLINK_DEV to an empty string, the user declares their intention to handle DEVLINK_DEV management on their own. In all netdevsim tests that use devlink_lib and set DEVLINK_DEV, set instead an empty DEVLINK_DEV just before sourcing devlink_lib, and set it to the correct value right afterwards. Fixes: 557c4d2f780c ("selftests: devlink_lib: add check for devlink device existence") Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rwxr-xr-xtools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh4
-rwxr-xr-xtools/testing/selftests/drivers/net/netdevsim/fib.sh6
-rwxr-xr-xtools/testing/selftests/drivers/net/netdevsim/nexthop.sh4
-rwxr-xr-xtools/testing/selftests/drivers/net/netdevsim/psample.sh4
-rw-r--r--tools/testing/selftests/net/forwarding/devlink_lib.sh2
5 files changed, 14 insertions, 6 deletions
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
index da49ad2761b5..6165901a1cf3 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
@@ -24,13 +24,15 @@ ALL_TESTS="
NETDEVSIM_PATH=/sys/bus/netdevsim/
DEV_ADDR=1337
DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
SLEEP_TIME=1
NETDEV=""
NUM_NETIFS=0
source $lib_dir/lib.sh
+
+DEVLINK_DEV=
source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
require_command udevadm
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib.sh b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
index 251f228ce63e..fc794cd30389 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/fib.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
@@ -33,13 +33,15 @@ ALL_TESTS="
NETDEVSIM_PATH=/sys/bus/netdevsim/
DEV_ADDR=1337
DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
NUM_NETIFS=0
source $lib_dir/lib.sh
-source $lib_dir/devlink_lib.sh
source $lib_dir/fib_offload_lib.sh
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
ipv4_identical_routes()
{
fib_ipv4_identical_routes_test "testns1"
diff --git a/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
index ba75c81cda91..e8e0dc088d6a 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
@@ -44,12 +44,14 @@ ALL_TESTS="
NETDEVSIM_PATH=/sys/bus/netdevsim/
DEV_ADDR=1337
DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
DEBUGFS_NET_DIR=/sys/kernel/debug/netdevsim/$DEV/
NUM_NETIFS=0
source $lib_dir/lib.sh
+
+DEVLINK_DEV=
source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
nexthop_check()
{
diff --git a/tools/testing/selftests/drivers/net/netdevsim/psample.sh b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
index ee10b1a8933c..e689ff7a0b12 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/psample.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
@@ -14,13 +14,15 @@ ALL_TESTS="
NETDEVSIM_PATH=/sys/bus/netdevsim/
DEV_ADDR=1337
DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
PSAMPLE_DIR=/sys/kernel/debug/netdevsim/$DEV/psample/
CAPTURE_FILE=$(mktemp)
NUM_NETIFS=0
source $lib_dir/lib.sh
+
+DEVLINK_DEV=
source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
# Available at https://github.com/Mellanox/libpsample
require_command psample
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index c19e001f138b..39fb9b8e7b58 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -18,7 +18,7 @@ if [[ ! -v DEVLINK_DEV ]]; then
DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
-n | cut -d" " -f3)
-else
+elif [[ ! -z "$DEVLINK_DEV" ]]; then
devlink dev show $DEVLINK_DEV &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: devlink device \"$DEVLINK_DEV\" not found"