From af14b00466e5ade83971eef7426845331d26e4ca Mon Sep 17 00:00:00 2001
From: ur4t <46435411+ur4t@users.noreply.github.com>
Date: Thu, 5 Jan 2023 11:44:08 +0800
Subject: [PATCH] Update README.md

---
 README.md | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index cf8733f5..a6ec8140 100644
--- a/README.md
+++ b/README.md
@@ -19,13 +19,15 @@ after installing an IP tables rule:
 
 The following kernel configuration is required.
 
-|           Option        |        Note            |
-| ----------------------- | ---------------------- |
-| CONFIG_DEBUG_INFO_BTF=y | Available since >= 5.3 |
-| CONFIG_KPROBES=y        |                        |
-| CONFIG_PERF_EVENTS=y    |                        |
-| CONFIG_BPF=y            |                        |
-| CONFIG_BPF_SYSCALL=y    |                        |
+|           Option         |                         Note                         |
+| ------------------------ | ---------------------------------------------------- |
+| CONFIG_DEBUG_INFO_BTF=y  | available since >= 5.3                               |
+| CONFIG_KPROBES=y         |                                                      |
+| CONFIG_PERF_EVENTS=y     |                                                      |
+| CONFIG_BPF=y             |                                                      |
+| CONFIG_BPF_SYSCALL=y     |                                                      |
+| CONFIG_FUNCTION_TRACER=y | /sys/kernel/debug/tracing/available_filter_functions |
+| CONFIG_FPROBE=y          | --backend=kprobe-multi, available since >= 5.18      |
 
 You can use `zgrep $OPTION /proc/config.gz` to validate whether option is enabled.