Hi Mathieu, On 27/01/2023 14:57, Mathieu Desnoyers wrote: > Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents > building against kernel headers from the build environment in scenarios > where kernel headers are installed into a specific output directory > (O=...). Thank you for the patch! > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> > Cc: Shuah Khan <shuah@xxxxxxxxxx> > Cc: linux-kselftest@xxxxxxxxxxxxxxx > Cc: Ingo Molnar <mingo@xxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> [5.18+] (It might be useful to add a "Fixes" tag as well to clearly indicate the dependence with a specific commit and better understand the fix.) (and add all the individual maintainers of the files you modify -- feel free to use 'b4' to help you for this task ;-) ) (...) > diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile > index 43a723626126..06bba013bcef 100644 > --- a/tools/testing/selftests/net/mptcp/Makefile > +++ b/tools/testing/selftests/net/mptcp/Makefile > @@ -2,7 +2,7 @@ > > top_srcdir = ../../../../.. > > -CFLAGS = -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES) > +CFLAGS = -Wall -Wl,--no-as-needed -O2 -g $(KHDR_INCLUDES) I only looked at the modification here with MPTCP selftests and it looks good to me. It makes sense because if KHDR_INCLUDES is not set, it will be set later by lib.mk I suppose. Just one small thing: I guess you can also remove "top_srcdir" variable that is no longer used, right? I see that "lib.mk" uses a variable with the same name but it overrides its value anyway. But it is likely I missed something there :) If indeed it is no longer needed, I guess a few Makefile can be adapted according to: git grep top_srcdir -- tools/testing/selftests/*/ I guess most of these Makefile are very similar, no? For MPTCP, we simply looked at what was done elsewhere :) Cheers, Matt -- Tessares | Belgium | Hybrid Access Solutions www.tessares.net