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[RFC,net-next,16/18] bpf: export function __bpf_map_get

Message ID 20191126100744.5083-17-prashantbhole.linux@gmail.com
State RFC
Delegated to: David Miller
Headers show
Series virtio_net XDP offload | expand

Commit Message

Prashant Bhole Nov. 26, 2019, 10:07 a.m. UTC 
From: Jason Wang <jasowang@redhat.com>

__bpf_map_get is necessary to get verify whether an fd corresponds
to a bpf map, without adding a refcount on that map. After exporting
it can be used by a kernel module.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Prashant Bhole <prashantbhole.linux@gmail.com>
---
 kernel/bpf/syscall.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index e3461ec59570..e524ab1e7c64 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -737,6 +737,7 @@  struct bpf_map *__bpf_map_get(struct fd f)
 
 	return f.file->private_data;
 }
+EXPORT_SYMBOL(__bpf_map_get);
 
 void bpf_map_inc(struct bpf_map *map)
 {