On Mon, Jun 10, 2024 at 03:28:36PM GMT, Jiri Olsa wrote:
On Sat, Jun 08, 2024 at 03:15:59PM -0600, Daniel Xu wrote:
The prototypes in progs/get_func_ip_test.c were not in line with how the actual kfuncs are defined in net/bpf/test_run.c. This causes compilation errors when kfunc prototypes are generated from BTF.
Fix by aligning with actual kfunc definitions.
Signed-off-by: Daniel Xu dxu@dxuuu.xyz
.../testing/selftests/bpf/progs/get_func_ip_test.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_test.c index 8956eb78a226..a89596f7585d 100644 --- a/tools/testing/selftests/bpf/progs/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/progs/get_func_ip_test.c @@ -5,13 +5,13 @@ char _license[] SEC("license") = "GPL"; -extern const void bpf_fentry_test1 __ksym; -extern const void bpf_fentry_test2 __ksym; -extern const void bpf_fentry_test3 __ksym; -extern const void bpf_fentry_test4 __ksym; -extern const void bpf_modify_return_test __ksym; -extern const void bpf_fentry_test6 __ksym; -extern const void bpf_fentry_test7 __ksym; +extern int bpf_fentry_test1(int a) __ksym;
hum, the only registered one as kfunc is bpf_fentry_test1, to allow fmodret also there's bpf_fentry_test9 as kfunc, which AFAICS is not really needed
I think bpf_modify_return_test() is also registered. But otherwise yeah, I think I was overaggressive here. Are you thinking something like this?
diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_test.c index a89596f7585d..2011cacdeb18 100644 --- a/tools/testing/selftests/bpf/progs/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/progs/get_func_ip_test.c @@ -6,12 +6,11 @@ char _license[] SEC("license") = "GPL";
extern int bpf_fentry_test1(int a) __ksym; -extern int bpf_fentry_test2(int a, __u64 b) __ksym; -extern int bpf_fentry_test3(char a, int b, __u64 c) __ksym; -extern int bpf_fentry_test4(void *a, char b, int c, __u64 d) __ksym; extern int bpf_modify_return_test(int a, int *b) __ksym; -extern int bpf_fentry_test6(__u64 a, void *b, short c, int d, void *e, __u64 f) __ksym; -extern int bpf_fentry_test7(struct bpf_fentry_test_t *arg) __ksym; + +extern const void bpf_fentry_test2 __ksym; +extern const void bpf_fentry_test3 __ksym; +extern const void bpf_fentry_test4 __ksym;
extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;