[PATCH RFC bpf-next 2/7] bpf: export bpf_link functions for modules
From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Date: 2021-05-28 20:00:50
Also in:
bpf
Subsystem:
bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
These are required in a subsequent patch to implement the bpf_link command for cls_bpf. Since the bpf_link object is tied to the cls_bpf_prog object, it has to be initialized and managed from inside the module. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> --- kernel/bpf/syscall.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 50457019da27..e5934b748ced 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c@@ -2338,6 +2338,7 @@ void bpf_link_init(struct bpf_link *link, enum bpf_link_type type, link->ops = ops; link->prog = prog; } +EXPORT_SYMBOL_GPL(bpf_link_init); static void bpf_link_free_id(int id) {
@@ -2363,6 +2364,7 @@ void bpf_link_cleanup(struct bpf_link_primer *primer) fput(primer->file); put_unused_fd(primer->fd); } +EXPORT_SYMBOL_GPL(bpf_link_cleanup); void bpf_link_inc(struct bpf_link *link) {
@@ -2510,6 +2512,7 @@ int bpf_link_prime(struct bpf_link *link, struct bpf_link_primer *primer) primer->id = id; return 0; } +EXPORT_SYMBOL_GPL(bpf_link_prime); int bpf_link_settle(struct bpf_link_primer *primer) {
@@ -2522,6 +2525,7 @@ int bpf_link_settle(struct bpf_link_primer *primer) /* pass through installed FD */ return primer->fd; } +EXPORT_SYMBOL_GPL(bpf_link_settle); int bpf_link_new_fd(struct bpf_link *link) {
--
2.31.1