netdev - [PATCH 14/15] samples/bpf: Ignore already processed ELF sections

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Message-Id: <20170214011400.13352-15-acme@kernel.org>
Date:   Mon, 13 Feb 2017 22:13:59 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Mickaël Salaün <mic@...ikod.net>,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 14/15] samples/bpf: Ignore already processed ELF sections

From: Mickaël Salaün <mic@...ikod.net>

Add a missing check for the map fixup loop.

Signed-off-by: Mickaël Salaün <mic@...ikod.net>
Acked-by: Joe Stringer <joe@....org>
Acked-by: Wang Nan <wangnan0@...wei.com>
Cc: Alexei Starovoitov <ast@...com>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: David S. Miller <davem@...emloft.net>
Cc: netdev@...r.kernel.org
Link: http://lkml.kernel.org/r/20170208202744.16274-2-mic@digikod.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 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;
-- 
2.9.3