HID: bpf: clean up entrypoint

We don't need to watch for calls on bpf_prog_put_deferred(), so remove
that from the entrypoints.bpf.c file.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/bpf/entrypoints/entrypoints.bpf.c

@@ -7,8 +7,6 @@
 
 #define HID_BPF_MAX_PROGS 1024
 
-extern void call_hid_bpf_prog_put_deferred(struct work_struct *work) __ksym;
-
 struct {
 	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
 	__uint(max_entries, HID_BPF_MAX_PROGS);
@@ -24,11 +22,4 @@ int BPF_PROG(hid_tail_call, struct hid_bpf_ctx *hctx)
 	return 0;
 }
 
-SEC("fentry/bpf_prog_put_deferred")
-int BPF_PROG(hid_bpf_prog_put_deferred, struct work_struct *work)
-{
-	call_hid_bpf_prog_put_deferred(work);
-	return 0;
-}
-
 char LICENSE[] SEC("license") = "GPL";

drivers/hid/bpf/hid_bpf_dispatch.c

@@ -173,7 +173,6 @@ hid_bpf_get_data(struct hid_bpf_ctx *ctx, unsigned int offset, const size_t rdwr
  * can use.
  */
 BTF_SET8_START(hid_bpf_kfunc_ids)
-BTF_ID_FLAGS(func, call_hid_bpf_prog_put_deferred)
 BTF_ID_FLAGS(func, hid_bpf_get_data, KF_RET_NULL)
 BTF_SET8_END(hid_bpf_kfunc_ids)
 

drivers/hid/bpf/hid_bpf_dispatch.h

@@ -22,7 +22,4 @@ int hid_bpf_reconnect(struct hid_device *hdev);
 
 struct bpf_prog;
 
-/* HID-BPF internal kfuncs API */
-void call_hid_bpf_prog_put_deferred(struct work_struct *work);
-
 #endif

drivers/hid/bpf/hid_bpf_jmp_table.c

@@ -499,11 +499,6 @@ void __hid_bpf_destroy_device(struct hid_device *hdev)
 	schedule_work(&release_work);
 }
 
-void call_hid_bpf_prog_put_deferred(struct work_struct *work)
-{
-	/* kept around for patch readability, to be dropped in the next commmit */
-}
-
 #define HID_BPF_PROGS_COUNT 1
 
 static struct bpf_link *links[HID_BPF_PROGS_COUNT];