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Message-Id: <20190726133936.11177-48-sashal@kernel.org>
Date: Fri, 26 Jul 2019 09:38:58 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Andrii Nakryiko <andriin@...com>,
Magnus Karlsson <magnus.karlsson@...el.com>,
Alexei Starovoitov <ast@...nel.org>,
Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org,
bpf@...r.kernel.org
Subject: [PATCH AUTOSEL 5.2 48/85] libbpf: fix another GCC8 warning for strncpy
From: Andrii Nakryiko <andriin@...com>
[ Upstream commit 763ff0e7d9c72e7094b31e7fb84a859be9325635 ]
Similar issue was fixed in cdfc7f888c2a ("libbpf: fix GCC8 warning for
strncpy") already. This one was missed. Fixing now.
Cc: Magnus Karlsson <magnus.karlsson@...el.com>
Signed-off-by: Andrii Nakryiko <andriin@...com>
Acked-by: Magnus Karlsson <magnus.karlsson@...el.com>
Signed-off-by: Alexei Starovoitov <ast@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
tools/lib/bpf/xsk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c
index 38667b62f1fe..aa37005209aa 100644
--- a/tools/lib/bpf/xsk.c
+++ b/tools/lib/bpf/xsk.c
@@ -561,7 +561,8 @@ int xsk_socket__create(struct xsk_socket **xsk_ptr, const char *ifname,
err = -errno;
goto out_socket;
}
- strncpy(xsk->ifname, ifname, IFNAMSIZ);
+ strncpy(xsk->ifname, ifname, IFNAMSIZ - 1);
+ xsk->ifname[IFNAMSIZ - 1] = '\0';
err = xsk_set_xdp_socket_config(&xsk->config, usr_config);
if (err)
--
2.20.1
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