linux-kernel - [PATCH bpf-next v4 06/12] bpf: selftests: Fix bpf_session

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Date: Sat,  8 Jun 2024 15:16:02 -0600
From: Daniel Xu <dxu@...uu.xyz>
To: shuah@...nel.org,
	ast@...nel.org,
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Subject: [PATCH bpf-next v4 06/12] bpf: selftests: Fix bpf_session_cookie() kfunc prototype

The prototype defined in bpf_kfuncs.h was not in line with how the
actual kfunc was defined. This causes compilation errors when kfunc
prototypes are generated from BTF.

Fix by aligning with actual kfunc definition.

Signed-off-by: Daniel Xu <dxu@...uu.xyz>
---
 tools/testing/selftests/bpf/bpf_kfuncs.h                        | 2 +-
 tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h
index be91a6919315..3b6675ab4086 100644
--- a/tools/testing/selftests/bpf/bpf_kfuncs.h
+++ b/tools/testing/selftests/bpf/bpf_kfuncs.h
@@ -77,5 +77,5 @@ extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr,
 				      struct bpf_key *trusted_keyring) __ksym;
 
 extern bool bpf_session_is_return(void) __ksym __weak;
-extern long *bpf_session_cookie(void) __ksym __weak;
+extern __u64 *bpf_session_cookie(void) __ksym __weak;
 #endif
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c
index d49070803e22..0835b5edf685 100644
--- a/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c
@@ -25,7 +25,7 @@ int BPF_PROG(trigger)
 
 static int check_cookie(__u64 val, __u64 *result)
 {
-	long *cookie;
+	__u64 *cookie;
 
 	if (bpf_get_current_pid_tgid() >> 32 != pid)
 		return 1;
-- 
2.44.0