Hi, Any thoughts about this patch? On 2/24/22 12:10 AM, Muhammad Usama Anjum wrote: > Build of kselftests fail if kernel's top most Makefile is used for > running or building kselftests with separate output directory. The > absolute path is needed to reference other files during this kind of > build. Set KBUILD_ABS_SRCTREE to use absolute path during the build. It > fixes the following different types of errors: > > make kselftest-all O=/linux_mainline/build > Makefile:1080: ../scripts/Makefile.extrawarn: No such file or directory > > make kselftest-all O=build > Makefile:1080: ../scripts/Makefile.extrawarn: No such file or directory > > Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> > --- > I've tested this patch on top of next-20220217. The latest next-20220222 > have missing patches. > --- > Makefile | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Makefile b/Makefile > index 86f633c2809ea..62b3eb8a102ab 100644 > --- a/Makefile > +++ b/Makefile > @@ -1411,10 +1411,10 @@ tools/%: FORCE > > PHONY += kselftest > kselftest: > - $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests > + $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests KBUILD_ABS_SRCTREE=1 run_tests > > kselftest-%: FORCE > - $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $* > + $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests KBUILD_ABS_SRCTREE=1 $* > > PHONY += kselftest-merge > kselftest-merge: -- -- Muhammad Usama Anjum