====== Cleaning ====== ../../../scripts/Makefile.include:4: *** O=build_tools/ does not exist. Stop. ====== Baseline building the tree ====== make[1]: Circular /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer <- /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer dependency dropped. Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h' Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h' ====== Building the tree before the patch ====== make[1]: Circular /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer <- /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer dependency dropped. ====== Checking if tree is clean ====== ====== Building the tree with the patch ====== make[1]: Circular /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer <- /home/nipa/bpf/wt-0/build_tools/kselftest/alsa/global-timer dependency dropped. ====== Checking if tree is clean ======