Re: [PATCH] RDMA/selftests: Fix the kernel config fragment

[Zhu Yanjun]

在 2026/9/27 9:16, Sasha Levin 写道:
The config fragment lists bare option names with no values:

   CONFIG_TUN
   CONFIG_VETH
   CONFIG_DUMMY
   CONFIG_NET_NS
   CONFIG_RDMA_RXE

which is not valid Kconfig syntax. When the fragment is merged, for
example by "make kselftest-merge" or by CI systems, the lines are
rejected:

   .config:5514:warning: unexpected data: CONFIG_TUN
   .config:5515:warning: unexpected data: CONFIG_VETH
   .config:5516:warning: unexpected data: CONFIG_DUMMY

and none of the options gets enabled, so the rxe tests skip or fail
for lack of the modules they load.

Give each option a value. The scripts load and unload tun, veth,
dummy and rdma_rxe with modprobe, so build those as modules.
RDMA_RXE also depends on INFINIBAND, and rxe_rping_between_netns.sh
runs rping, which needs the RDMA CM userspace interface provided by
INFINIBAND_USER_ACCESS, so add both.

Found by KernelCI kselftest builds.

Fixes: e01027cab38a ("RDMA/rxe: Add testcase for net namespace rxe")
Fixes: ecdcc8a455b7 ("RDMA/selftests: Add rxe_netns_names test")
Assisted-by: LLM
Signed-off-by: Sasha Levin <sas...@kernel.org>

The fix looks correct. The existing entries in 
tools/testing/selftests/rdma/config are

not valid config fragment assignments and are rejected by kselftest-merge.

Using m for the modules loaded by the RXE netns tests is appropriate,

while NET_NS=y provides the required network namespace support.

Adding INFINIBAND and INFINIBAND_USER_ACCESS also matches

the RXE/rping runtime dependencies.

Thanks a lot.

Reviewed-by: Zhu Yanjun <yanjun....@linux.dev>

Zhu Yanjun

---
  tools/testing/selftests/rdma/config | 12 +++++++-----
  1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/rdma/config 
b/tools/testing/selftests/rdma/config
index e1ff54ec0f579..1be43c4274bb8 100644
--- a/tools/testing/selftests/rdma/config
+++ b/tools/testing/selftests/rdma/config
@@ -1,5 +1,7 @@
-CONFIG_TUN
-CONFIG_VETH
-CONFIG_DUMMY
-CONFIG_NET_NS
-CONFIG_RDMA_RXE
+CONFIG_TUN=m
+CONFIG_VETH=m
+CONFIG_DUMMY=m
+CONFIG_NET_NS=y
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_RDMA_RXE=m

--
Best Regards,
Yanjun.Zhu