forked from ~ljy/RK356X_SDK_RELEASE

hc
2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5
kernel/tools/include/uapi/linux/bpf.h
....@@ -976,7 +976,9 @@
976976 * performed again, if the helper is used in combination with
977977 * direct packet access.
978978 * Return
979
- * 0 on success, or a negative error in case of failure.
979
+ * 0 on success, or a negative error in case of failure. Positive
980
+ * error indicates a potential drop or congestion in the target
981
+ * device. The particular positive error codes are not defined.
980982 *
981983 * u64 bpf_get_current_pid_tgid(void)
982984 * Return