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Diffstat (limited to 'tools/testing/selftests/bpf/progs/kfunc_call_test.c')
-rw-r--r--tools/testing/selftests/bpf/progs/kfunc_call_test.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_test.c b/tools/testing/selftests/bpf/progs/kfunc_call_test.c
index f636e50be259..7daa8f5720b9 100644
--- a/tools/testing/selftests/bpf/progs/kfunc_call_test.c
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_test.c
@@ -3,6 +3,7 @@
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
+extern long bpf_kfunc_call_test4(signed char a, short b, int c, long d) __ksym;
extern int bpf_kfunc_call_test2(struct sock *sk, __u32 a, __u32 b) __ksym;
extern __u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
__u32 c, __u64 d) __ksym;
@@ -16,6 +17,24 @@ extern void bpf_kfunc_call_test_mem_len_pass1(void *mem, int len) __ksym;
extern void bpf_kfunc_call_test_mem_len_fail2(__u64 *mem, int len) __ksym;
extern int *bpf_kfunc_call_test_get_rdwr_mem(struct prog_test_ref_kfunc *p, const int rdwr_buf_size) __ksym;
extern int *bpf_kfunc_call_test_get_rdonly_mem(struct prog_test_ref_kfunc *p, const int rdonly_buf_size) __ksym;
+extern u32 bpf_kfunc_call_test_static_unused_arg(u32 arg, u32 unused) __ksym;
+
+SEC("tc")
+int kfunc_call_test4(struct __sk_buff *skb)
+{
+ struct bpf_sock *sk = skb->sk;
+ long tmp;
+
+ if (!sk)
+ return -1;
+
+ sk = bpf_sk_fullsock(sk);
+ if (!sk)
+ return -1;
+
+ tmp = bpf_kfunc_call_test4(-3, -30, -200, -1000);
+ return (tmp >> 32) + tmp;
+}
SEC("tc")
int kfunc_call_test2(struct __sk_buff *skb)
@@ -163,4 +182,14 @@ int kfunc_call_test_get_mem(struct __sk_buff *skb)
return ret;
}
+SEC("tc")
+int kfunc_call_test_static_unused_arg(struct __sk_buff *skb)
+{
+
+ u32 expected = 5, actual;
+
+ actual = bpf_kfunc_call_test_static_unused_arg(expected, 0xdeadbeef);
+ return actual != expected ? -1 : 0;
+}
+
char _license[] SEC("license") = "GPL";