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-rw-r--r--tools/testing/selftests/mm/page_frag/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/page_frag/Makefile b/tools/testing/selftests/mm/page_frag/Makefile
index 8c8bb39ffa28..96e5f646e69b 100644
--- a/tools/testing/selftests/mm/page_frag/Makefile
+++ b/tools/testing/selftests/mm/page_frag/Makefile
@@ -1,5 +1,5 @@
PAGE_FRAG_TEST_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
-KDIR ?= /lib/modules/$(shell uname -r)/build
+KDIR ?= $(if $(O),$(O),$(realpath ../../../../..))
ifeq ($(V),1)
Q =