Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings due to MS extensions")
The kernel is now built with -fms-extensions, therefore generated vmlinux.h contains types like: struct slab { .. struct freelist_counters; };
Use -fms-extensions and -Wno-microsoft-anon-tag flags to build bpf programs that #include "vmlinux.h"
Signed-off-by: Benjamin Tissoires bentiss@kernel.org --- drivers/hid/bpf/progs/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/bpf/progs/Makefile b/drivers/hid/bpf/progs/Makefile index ec1fc642fd63..66b8f38e591d 100644 --- a/drivers/hid/bpf/progs/Makefile +++ b/drivers/hid/bpf/progs/Makefile @@ -56,8 +56,10 @@ clean:
%.bpf.o: %.bpf.c vmlinux.h $(BPFOBJ) | $(OUTPUT) $(call msg,BPF,$@) - $(Q)$(CLANG) -g -O2 --target=bpf -Wall -Werror $(INCLUDES) \ - -c $(filter %.c,$^) -o $@ && \ + $(Q)$(CLANG) -g -O2 --target=bpf -Wall -Werror $(INCLUDES) \ + -Wno-microsoft-anon-tag \ + -fms-extensions \ + -c $(filter %.c,$^) -o $@ && \ $(LLVM_STRIP) -g $@
vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)