linux-kernel - [PATCH] selftests/bpf: declare subprog_noise as static in tailcall

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Date:   Thu, 25 Aug 2022 21:51:39 -0600
From:   James Hilliard <james.hilliard1@...il.com>
To:     bpf@...r.kernel.org
Cc:     James Hilliard <james.hilliard1@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] selftests/bpf: declare subprog_noise as static in tailcall_bpf2bpf4

Due to bpf_map_lookup_elem being declared static we need to also
declare subprog_noise as static.

Fixes the following error:
progs/tailcall_bpf2bpf4.c:26:9: error: 'bpf_map_lookup_elem' is static but used in inline function 'subprog_noise' which is not static [-Werror]
   26 |         bpf_map_lookup_elem(&nop_table, &key);
      |         ^~~~~~~~~~~~~~~~~~~

Signed-off-by: James Hilliard <james.hilliard1@...il.com>
---
 tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
index b67e8022d500..a017d6b2f1dd 100644
--- a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
@@ -19,7 +19,7 @@ struct {
 int count = 0;
 int noise = 0;
 
-__always_inline int subprog_noise(void)
+static __always_inline int subprog_noise(void)
 {
 	__u32 key = 0;
 
-- 
2.34.1