linux-kernel - [PATCH] net/mlx5e: fix mlx5e_tc_tun_update_header

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Message-Id: <20210225125501.1792072-1-arnd@kernel.org>
Date:   Thu, 25 Feb 2021 13:54:54 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Dmytro Linkin <dlinkin@...dia.com>,
        Vlad Buslov <vladbu@...dia.com>, Roi Dayan <roid@...dia.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Eli Britstein <elibr@...lanox.com>,
        Eli Cohen <eli@...lanox.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] net/mlx5e: fix mlx5e_tc_tun_update_header_ipv6 dummy definition

From: Arnd Bergmann <arnd@...db.de>

The alternative implementation of this function in a header file
is declared as a global symbol, and gets added to every .c file
that includes it, which leads to a link error:

arm-linux-gnueabi-ld: drivers/net/ethernet/mellanox/mlx5/core/en_rx.o: in function `mlx5e_tc_tun_update_header_ipv6':
en_rx.c:(.text+0x0): multiple definition of `mlx5e_tc_tun_update_header_ipv6'; drivers/net/ethernet/mellanox/mlx5/core/en_main.o:en_main.c:(.text+0x0): first defined here

Mark it 'static inline' like the other functions here.

Fixes: c7b9038d8af6 ("net/mlx5e: TC preparation refactoring for routing update event")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
index 67de2bf36861..89d5ca91566e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
@@ -76,10 +76,12 @@ int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
 static inline int
 mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
 				struct net_device *mirred_dev,
-				struct mlx5e_encap_entry *e) { return -EOPNOTSUPP; }
-int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
-				    struct net_device *mirred_dev,
-				    struct mlx5e_encap_entry *e)
+				struct mlx5e_encap_entry *e)
+{ return -EOPNOTSUPP; }
+static inline int
+mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
+				struct net_device *mirred_dev,
+				struct mlx5e_encap_entry *e)
 { return -EOPNOTSUPP; }
 #endif
 int mlx5e_tc_tun_route_lookup(struct mlx5e_priv *priv,
-- 
2.29.2