samples/bpf: add a test for bpf_override_return

[linux-block.git] / tools / include / uapi / linux / bpf.h

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 4c223ab30293cd1e07248b960e213c7f22b778c5..cf446c25c0ec73326710ee49df6a1749d1c65d0c 100644 (file)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -677,6 +677,10 @@ union bpf_attr {
  *     @buf: buf to fill
  *     @buf_size: size of the buf
  *     Return : 0 on success or negative error code
+ *
+ * int bpf_override_return(pt_regs, rc)
+ *     @pt_regs: pointer to struct pt_regs
+ *     @rc: the return value to set
  */
 #define __BPF_FUNC_MAPPER(FN)          \
        FN(unspec),                     \
@@ -736,7 +740,8 @@ union bpf_attr {
        FN(xdp_adjust_meta),            \
        FN(perf_event_read_value),      \
        FN(perf_prog_read_value),       \
-       FN(getsockopt),
+       FN(getsockopt),                 \
+       FN(override_return),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call