netdev - [PATCH v4 1/3] samples/bpf: Ignore already processed ELF sections

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Message-Id: <20170208202744.16274-2-mic@digikod.net>
Date:   Wed,  8 Feb 2017 21:27:42 +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 1/3] samples/bpf: Ignore already processed ELF sections

Add a missing check for the map fixup loop.

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>
---
 samples/bpf/bpf_load.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index 396e204888b3..e04fe09d7c2e 100644
--- a/samples/bpf/bpf_load.c
+++ b/samples/bpf/bpf_load.c
@@ -328,6 +328,8 @@ int load_bpf_file(char *path)
 
 	/* load programs that need map fixup (relocations) */
 	for (i = 1; i < ehdr.e_shnum; i++) {
+		if (processed_sec[i])
+			continue;
 
 		if (get_sec(elf, i, &ehdr, &shname, &shdr, &data))
 			continue;
-- 
2.11.0