[PATCH] tools/testing/selftests/net/bpf/Makefile: fix fatal error: 'bpf/bpf_helpers.h' file not found

[Jie2x Zhou]

In tools/testing/selftests run:
make -C bpf
make -C net
fatal error: 'bpf/bpf_helpers.h' file not found

Add bpf/bpf_helpers.h include path in net/bpf/Makefile.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Jie2x Zhou <jie2x.zhou@xxxxxxxxx>
---
 tools/testing/selftests/net/bpf/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/net/bpf/Makefile b/tools/testing/selftests/net/bpf/Makefile
index 8ccaf8732eb2..07d56d446358 100644
--- a/tools/testing/selftests/net/bpf/Makefile
+++ b/tools/testing/selftests/net/bpf/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
 CLANG ?= clang
+CCINCLUDE += -I../bpf/tools/include
 CCINCLUDE += -I../../bpf
 CCINCLUDE += -I../../../../lib
 CCINCLUDE += -I../../../../../usr/include/
-- 
2.36.1