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H A D | lib.mk | bdbf0617 Fri Aug 19 14:19:28 CDT 2022 Axel Rasmussen <axelrasmussen@google.com> selftests/vm: fix inability to build any vm tests
When we stopped using KSFT_KHDR_INSTALL, a side effect is we also changed the value of `top_srcdir`. This can be seen by looking at the code removed by commit 49de12ba06ef ("selftests: drop KSFT_KHDR_INSTALL make target").
(Note though that this commit didn't break this, technically the one before it did since that's the one that stopped KSFT_KHDR_INSTALL from being used, even though the code was still there.)
Previously lib.mk reconfigured `top_srcdir` when KSFT_KHDR_INSTALL was being used. Now, that's no longer the case.
As a result, the path to gup_test.h in vm/Makefile was wrong, and since it's a dependency of all of the vm binaries none of them could be built. Instead, we'd get an "error" like:
make[1]: *** No rule to make target '/[...]/tools/testing/selftests/vm/compaction_test', needed by 'all'. Stop.
So, modify lib.mk so it once again sets top_srcdir to the root of the kernel tree.
Fixes: f2745dc0ba3d ("selftests: stop using KSFT_KHDR_INSTALL") Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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