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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 242a643af82f..3675b19ecb90 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -2090,6 +2090,15 @@ bool __weak bpf_helper_changes_pkt_data(void *func)
return false;
}
+/* Return TRUE if the JIT backend wants verifier to enable sub-register usage
+ * analysis code and wants explicit zero extension inserted by verifier.
+ * Otherwise, return FALSE.
+ */
+bool __weak bpf_jit_needs_zext(void)
+{
+ return false;
+}
+
/* 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.
*/