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Po-Hsu Lin 8ea899803b selftests: xfrm: fix test return value override issue in xfrm_policy.sh [ Upstream commit `f6e9ceb7a7` ] When running this xfrm_policy.sh test script, even with some cases marked as FAIL, the overall test result will still be PASS: $ sudo ./xfrm_policy.sh PASS: policy before exception matches FAIL: expected ping to .254 to fail (exceptions) PASS: direct policy matches (exceptions) PASS: policy matches (exceptions) FAIL: expected ping to .254 to fail (exceptions and block policies) PASS: direct policy matches (exceptions and block policies) PASS: policy matches (exceptions and block policies) FAIL: expected ping to .254 to fail (exceptions and block policies after hresh changes) PASS: direct policy matches (exceptions and block policies after hresh changes) PASS: policy matches (exceptions and block policies after hresh changes) FAIL: expected ping to .254 to fail (exceptions and block policies after hthresh change in ns3) PASS: direct policy matches (exceptions and block policies after hthresh change in ns3) PASS: policy matches (exceptions and block policies after hthresh change in ns3) FAIL: expected ping to .254 to fail (exceptions and block policies after htresh change to normal) PASS: direct policy matches (exceptions and block policies after htresh change to normal) PASS: policy matches (exceptions and block policies after htresh change to normal) PASS: policies with repeated htresh change $ echo $? 0 This is because the $lret in check_xfrm() is not a local variable. Therefore when a test failed in check_exceptions(), the non-zero $lret will later get reset to 0 when the next test calls check_xfrm(). With this fix, the final return value will be 1. Make it easier for testers to spot this failure. Fixes: `39aa6928d4` ("xfrm: policy: fix netlink/pf_key policy lookups") Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2021-02-03 23:28:45 +01:00
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README

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.