[PATCH bpf-next v1 12/19] selftests/bpf: Fix compiling kfree_skb.c with musl-libc

The GNU version of 'struct tcphdr' with member 'doff' is not exposed by musl headers unless _GNU_SOURCE is defined. Add this definition to fix errors seen compiling for mips64el/musl-libc:

In file included from kfree_skb.c:2: kfree_skb.c: In function 'on_sample': kfree_skb.c:45:30: error: 'struct tcphdr' has no member named 'doff' 45 | if (CHECK(pkt_v6->tcp.doff != 5, "check_tcp", | ^

Fixes: 580d656d80cf ("selftests/bpf: Add kfree_skb raw_tp test") Signed-off-by: Tony Ambardar tony.ambardar@gmail.com --- tools/testing/selftests/bpf/prog_tests/kfree_skb.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c index c07991544a78..34f8822fd221 100644 --- a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c +++ b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#define _GNU_SOURCE #include <test_progs.h> #include <network_helpers.h> #include "kfree_skb.skel.h"