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Message-Id: <20170208202744.16274-3-mic@digikod.net>
Date: Wed, 8 Feb 2017 21:27:43 +0100
From: Mickaël Salaün <mic@...ikod.net>
To: linux-kernel@...r.kernel.org
Cc: Mickaël Salaün <mic@...ikod.net>,
Alexei Starovoitov <ast@...com>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Daniel Borkmann <daniel@...earbox.net>,
"David S . Miller" <davem@...emloft.net>,
Joe Stringer <joe@....org>, Wang Nan <wangnan0@...wei.com>,
netdev@...r.kernel.org
Subject: [PATCH v4 2/3] samples/bpf: Reset global variables
Before loading a new ELF, clean previous kernel version, license and
processed sections.
Signed-off-by: Mickaël Salaün <mic@...ikod.net>
Cc: Alexei Starovoitov <ast@...com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: David S. Miller <davem@...emloft.net>
---
samples/bpf/bpf_load.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index e04fe09d7c2e..b86ee54da2d1 100644
--- a/samples/bpf/bpf_load.c
+++ b/samples/bpf/bpf_load.c
@@ -277,6 +277,11 @@ int load_bpf_file(char *path)
Elf_Data *data, *data_prog, *symbols = NULL;
char *shname, *shname_prog;
+ /* reset global variables */
+ kern_version = 0;
+ memset(license, 0, sizeof(license));
+ memset(processed_sec, 0, sizeof(processed_sec));
+
if (elf_version(EV_CURRENT) == EV_NONE)
return 1;
--
2.11.0
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