[Bug 2076334] Re: jammy:linux bpf selftest do not build

This bug is awaiting verification that the linux-nvidia-
tegra-5.15/5.15.0-1030.30~20.04.1 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-focal-linux-
nvidia-tegra-5.15' to 'verification-done-focal-linux-nvidia-tegra-5.15'.
If the problem still exists, change the tag 'verification-needed-focal-
linux-nvidia-tegra-5.15' to 'verification-failed-focal-linux-nvidia-
tegra-5.15'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-focal-linux-nvidia-tegra-5.15-v2 verification-needed-focal-linux-nvidia-tegra-5.15

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https://bugs.launchpad.net/bugs/2076334

Title:
jammy:linux bpf selftest do not build

Status in linux package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Released

Bug description:
SRU Justification:

[Impact]

* bpf selftest do not compile. See the error below.
Commit "bpf: Allow reads from uninit stack" introduced the usage of '__failure',
without bringing the commit where this is defined.
This prevents us from running other tests and it also affects the netselfts because they are dependant on it.

Logs:

17242 progs/test_global_func10.c:24:17: error: expected parameter declarator
17243 __failure __msg("invalid indirect access to stack")
17244 ^
17245 progs/test_global_func10.c:24:17: error: expected ')'
17246 progs/test_global_func10.c:24:16: note: to match this '('
17247 __failure __msg("invalid indirect access to stack")
17248 ^
17249 progs/test_global_func10.c:24:52: error: expected ';' after top level declarator
17250 __failure __msg("invalid indirect access to stack")
17251 ^

[Fix]

* While discussing with upstream a revert of this commit will be the
fix for now.

[Test Plan]

* Revert, build the kernel, run the ubuntu_bpf_selftests and see it
they build.

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