From 367bf0250fcd21fbcdd232353fc32bdbfb5a91dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Geyslan=20Greg=C3=B3rio?= <geyslan@gmail.com>
Date: Tue, 29 Aug 2023 13:57:58 -0300
Subject: [PATCH] fix: GetMap() comment (#371)

On a GetMapInfoByFD() failure, the comment was wrong.

See: https://github.com/aquasecurity/libbpfgo/issues/159#issuecomment-1696254884
---
 libbpfgo.go | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/libbpfgo.go b/libbpfgo.go
index 02d9794d..01cdfb96 100644
--- a/libbpfgo.go
+++ b/libbpfgo.go
@@ -418,12 +418,9 @@ func (m *Module) GetMap(mapName string) (*BPFMap, error) {
 	fd := bpfMap.FileDescriptor()
 	info, err := GetMapInfoByFD(fd)
 	if err != nil {
-		// Compatibility Note: Some older kernels lack BTF (BPF Type Format)
-		// support for specific BPF map types. In such scenarios, libbpf may
-		// fail (EPERM) when attempting to retrieve information for these maps.
-		// Reference: https://elixir.bootlin.com/linux/v5.15.75/source/tools/lib/bpf/gen_loader.c#L401
-		//
-		// However, we can still get some map info from the BPF map high level API.
+		// The consumer of this API may not have sufficient privileges to get
+		// map info via BPF syscall. However, "some" map info still can be
+		// retrieved from the BPF object itself.
 		bpfMap.bpfMapLow = &BPFMapLow{
 			fd: fd,
 			info: &BPFMapInfo{