From aaa39601b756074e9ba8b9a607102a1ae0cb4c94 Mon Sep 17 00:00:00 2001

From: Jerome Marchand <jmarchan@redhat.com>

Date: Mon, 26 Jul 2021 14:45:37 +0200

Subject: [PATCH] Revert "libbpf-tools: remove unecessary custom NULL

 definitions"

Libbpf on RHEL does not define NULL

This reverts commit a9f461d74a84be2f96fd35c02cf98c7251bd4166.

---

 libbpf-tools/biostacks.bpf.c | 1 +

 libbpf-tools/xfsslower.bpf.c | 2 ++

 2 files changed, 3 insertions(+)

diff --git a/libbpf-tools/biostacks.bpf.c b/libbpf-tools/biostacks.bpf.c

index f02a1ac5..6ed0bda6 100644

--- a/libbpf-tools/biostacks.bpf.c

+++ b/libbpf-tools/biostacks.bpf.c

@@ -9,6 +9,7 @@

 #include "maps.bpf.h"

 #define MAX_ENTRIES	10240

+#define NULL		0

 const volatile bool targ_ms = false;

 const volatile dev_t targ_dev = -1;

diff --git a/libbpf-tools/xfsslower.bpf.c b/libbpf-tools/xfsslower.bpf.c

index 05962f46..2b1c6e4b 100644

--- a/libbpf-tools/xfsslower.bpf.c

+++ b/libbpf-tools/xfsslower.bpf.c

@@ -6,6 +6,8 @@

 #include <bpf/bpf_tracing.h>

 #include "xfsslower.h"

+#define NULL	0

+

 const volatile pid_t targ_tgid = 0;

 const volatile __u64 min_lat = 0;

-- 

2.31.1