This little patch is a follow-up to: https://lore.kernel.org/bpf/20240507095011.15867-1-jose.marchesi@xxxxxxxxxx/T/#u The temporary workaround of passing -DBPF_NO_PRESERVE_ACCESS_INDEX when building with GCC triggers a redefinition preprocessor error when building progs/skb_pkt_end.c. This patch adds a guard to avoid redefinition. Signed-off-by: Jose E. Marchesi <jose.marchesi@xxxxxxxxxx> Cc: david.faust@xxxxxxxxxx Cc: cupertino.miranda@xxxxxxxxxx Cc: Eduard Zingerman <eddyz87@xxxxxxxxx> Cc: Yonghong Song <yonghong.song@xxxxxxxxx> Cc: Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> --- tools/testing/selftests/bpf/progs/skb_pkt_end.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/skb_pkt_end.c b/tools/testing/selftests/bpf/progs/skb_pkt_end.c index 992b7861003a..db4abd2682fc 100644 --- a/tools/testing/selftests/bpf/progs/skb_pkt_end.c +++ b/tools/testing/selftests/bpf/progs/skb_pkt_end.c @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 +#ifndef BPF_NO_PRESERVE_ACCESS_INDEX #define BPF_NO_PRESERVE_ACCESS_INDEX +#endif #include <vmlinux.h> #include <bpf/bpf_core_read.h> #include <bpf/bpf_helpers.h> -- 2.30.2