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The `nettest` binary, built from `selftests/net/nettest.c`, was expected to be found in the path during test execution of `fcnal-test.sh` and `pmtu.sh`, leading to tests getting skipped when the binary is not installed in the system, as can be seen in these logs found in the wild [1]: # TEST: vti4: PMTU exceptions [SKIP] [ 350.600250] IPv6: ADDRCONF(NETDEV_CHANGE): veth_b: link becomes ready [ 350.607421] IPv6: ADDRCONF(NETDEV_CHANGE): veth_a: link becomes ready # 'nettest' command not found; skipping tests # xfrm6udp not supported # TEST: vti6: PMTU exceptions (ESP-in-UDP) [SKIP] [ 351.605102] IPv6: ADDRCONF(NETDEV_CHANGE): veth_b: link becomes ready [ 351.612243] IPv6: ADDRCONF(NETDEV_CHANGE): veth_a: link becomes ready # 'nettest' command not found; skipping tests # xfrm4udp not supported The `unicast_extensions.sh` tests also rely on `nettest`, but it runs fine there because it looks for the binary in the current working directory [2]: The same mechanism that works for the Unicast extensions tests is here copied over to the PMTU and functional tests. [1] https://lkft.validation.linaro.org/scheduler/job/5839508#L6221 [2] https://lkft.validation.linaro.org/scheduler/job/5839508#L7958 Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.