TencentOS-kernel/tools/testing
Danielle Ratson c9dc2a2a6f selftests: forwarding: Fix race condition in mirror installation
commit edcbf5137f093b5502f5f6b97cce3cbadbde27aa upstream.

When mirroring to a gretap in hardware the device expects to be
programmed with the egress port and all the encapsulating headers. This
requires the driver to resolve the path the packet will take in the
software data path and program the device accordingly.

If the path cannot be resolved (in this case because of an unresolved
neighbor), then mirror installation fails until the path is resolved.
This results in a race that causes the test to sometimes fail.

Fix this by setting the neighbor's state to permanent, so that it is
always valid.

Fixes: b5b029399fa6d ("selftests: forwarding: mirror_gre_bridge_1d_vlan: Add STP test")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-12 12:52:59 +08:00
..
fault-injection Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
ktest ktest.pl: If size of log is too big to email, email error message 2021-03-16 16:42:19 +08:00
nvdimm tools/test/nvdimm: Fix out of tree build 2021-03-16 16:26:45 +08:00
radix-tree ida: Free allocated bitmap in error path 2021-03-16 16:38:50 +08:00
scatterlist Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
selftests selftests: forwarding: Fix race condition in mirror installation 2021-04-12 12:52:59 +08:00
vsock Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00