selftests/sched_ext: Add -fms-extensions to bpf build flags

Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to
bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings
due to MS extensions")

Fix "declaration does not declare anything" warning by using
-fms-extensions and -Wno-microsoft-anon-tag flags to build bpf programs
that #include "vmlinux.h"

Signed-off-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/tools/testing/selftests/sched_ext/Makefile b/tools/testing/selftests/sched_ext/Makefile
index 2c601a7eaff5f0fee2198ec93770d91182a6de7d..006300ac6dff88a48104977398d8517753e7e385 100644 (file)
--- a/tools/testing/selftests/sched_ext/Makefile
+++ b/tools/testing/selftests/sched_ext/Makefile
@@ -93,6 +93,8 @@ BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH)                                    \
             $(CLANG_SYS_INCLUDES)                                              \
             -Wall -Wno-compare-distinct-pointer-types                          \
             -Wno-incompatible-function-pointer-types                           \
+            -Wno-microsoft-anon-tag                                            \
+            -fms-extensions                                                    \
             -O2 -mcpu=v3
 
 # sort removes libbpf duplicates when not cross-building