From 508c8f785700adc0cf58a4ce2ee1572ccd257b7c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <maze@google.com>
Date: Wed, 28 Aug 2024 15:07:33 -0700
Subject: [PATCH] NetBpfLoad: do not log bpfGetFdMapId() failures on 4.9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is entirely expected due to lack of implementation in <4.14.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ifebe6843dc77b1b9a506c61239dcebe7262d0869
---
 bpf/loader/NetBpfLoad.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bpf/loader/NetBpfLoad.cpp b/bpf/loader/NetBpfLoad.cpp
index 59712b1e11..07be8c6871 100644
--- a/bpf/loader/NetBpfLoad.cpp
+++ b/bpf/loader/NetBpfLoad.cpp
@@ -839,7 +839,8 @@ static int createMaps(const char* elfPath, ifstream& elfFile, vector<unique_fd>&
 
         int mapId = bpfGetFdMapId(fd);
         if (mapId == -1) {
-            ALOGE("bpfGetFdMapId failed, ret: %d [%d]", mapId, errno);
+            if (isAtLeastKernelVersion(4, 14, 0))
+                ALOGE("bpfGetFdMapId failed, ret: %d [%d]", mapId, errno);
         } else {
             ALOGI("map %s id %d", mapPinLoc.c_str(), mapId);
         }