[PATCH bpf] selftests/bpf: fix bpf_target_sparc check

[Ilya Leoshkevich <iii@xxxxxxxxxxxxx>]

bpf_helpers.h fails to compile on sparc: the code should be checking
for defined(bpf_target_sparc), but checks simply for bpf_target_sparc.

Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
---
 tools/testing/selftests/bpf/bpf_helpers.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index 5f6f9e7aba2a..a8fea087aa90 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -443,7 +443,7 @@ static int (*bpf_skb_adjust_room)(void *ctx, __s32 len_diff, __u32 mode,
 #ifdef bpf_target_powerpc
 #define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = (ctx)->link; })
 #define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP
-#elif bpf_target_sparc
+#elif defined(bpf_target_sparc)
 #define BPF_KPROBE_READ_RET_IP(ip, ctx)		({ (ip) = PT_REGS_RET(ctx); })
 #define BPF_KRETPROBE_READ_RET_IP		BPF_KPROBE_READ_RET_IP
 #else
-- 
2.21.0