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-rw-r--r--kernel/bpf/core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index f0c30c59b317..d6594e457a25 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -655,3 +655,12 @@ void bpf_prog_free(struct bpf_prog *fp)
schedule_work(&aux->work);
}
EXPORT_SYMBOL_GPL(bpf_prog_free);
+
+/* To execute LD_ABS/LD_IND instructions __bpf_prog_run() may call
+ * skb_copy_bits(), so provide a weak definition of it for NET-less config.
+ */
+int __weak skb_copy_bits(const struct sk_buff *skb, int offset, void *to,
+ int len)
+{
+ return -EFAULT;
+}