[PATCH net-next] selftests: drv-net: rss_flow_label: skip unsupported devices

[PATCH net-next] selftests: drv-net: rss_flow_label: skip unsupported devices

[Nimrod Oren]

The test_rss_flow_label_6only test case fails on devices that do not
support IPv6 flow label hashing. Make it skip neatly, consistent with
the behavior of the test_rss_flow_label case.

Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Nimrod Oren <noren@nvidia.com>
---
 .../selftests/drivers/net/hw/rss_flow_label.py        | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/hw/rss_flow_label.py b/tools/testing/selftests/drivers/net/hw/rss_flow_label.py
index 6fa95fe27c47..7dc80070884a 100755
--- a/tools/testing/selftests/drivers/net/hw/rss_flow_label.py
+++ b/tools/testing/selftests/drivers/net/hw/rss_flow_label.py
@@ -145,9 +145,14 @@ def test_rss_flow_label_6only(cfg):
 
     # Try to enable Flow Labels and check again, in case it leaks thru
     initial = _ethtool_get_cfg(cfg, "udp6")
-    changed = initial.replace("l", "") if "l" in initial else initial + "l"
-
-    cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {changed}")
+    no_lbl = initial.replace("l", "")
+    if "l" not in initial:
+        try:
+            cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 l{no_lbl}")
+        except CmdExitFailure as exc:
+            raise KsftSkipEx("Device doesn't support Flow Label for UDP6") from exc
+    else:
+        cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {no_lbl}")
     restore = defer(cmd, f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {initial}")
 
     _check_v4_flow_types(cfg)
-- 
2.45.0

Re: [PATCH net-next] selftests: drv-net: rss_flow_label: skip unsupported devices

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 28 Jan 2026 11:02:17 +0200 you wrote:
> The test_rss_flow_label_6only test case fails on devices that do not
> support IPv6 flow label hashing. Make it skip neatly, consistent with
> the behavior of the test_rss_flow_label case.
> 
> Reviewed-by: Gal Pressman <gal@nvidia.com>
> Signed-off-by: Nimrod Oren <noren@nvidia.com>
> 
> [...]

Here is the summary with links:
  - [net-next] selftests: drv-net: rss_flow_label: skip unsupported devices
    https://git.kernel.org/netdev/net-next/c/7b85c7758540

You are awesome, thank you!
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