Re: [PATCH] [net-next] net/mlx5e: fix ip6_dst_lookup link failure
From: Jianbo Liu <hidden>
Date: 2026-02-06 09:56:34
Also in:
linux-rdma, lkml
On 2/4/2026 9:00 PM, Arnd Bergmann wrote:
quoted hunk ↗ jump to hunk
From: Arnd Bergmann <arnd@arndb.de> Changing mlx5 to call ip6_dst_lookup() means it now fails to link when IPv6 is a loadable module but ipsec support is built-in: ipsec.c:(.text+0x1061): undefined reference to `ip6_dst_lookup' Add a Kconfig dependency that removes avoids this configuration. Fixes: e35d7da8dd9e ("net/mlx5e: Use ip6_dst_lookup instead of ipv6_dst_lookup_flow for MAC init") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 + 1 file changed, 1 insertion(+)diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig index 9cf394c66939..c298efe93f97 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig +++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig@@ -154,6 +154,7 @@ config MLX5_EN_IPSEC depends on MLX5_CORE_EN depends on XFRM_OFFLOAD depends on INET_ESP_OFFLOAD || INET6_ESP_OFFLOAD + depends on IPV6!=m || MLX5_CORE=m
Thanks for the fix. I received a report for this same error here: https://lore.kernel.org/oe-kbuild-all/202512261850.P5Jp5BSz-lkp@intel.com/ (local) We were about to send a fix ourselves, it is to simply add: depends on IPV6 || !IPV6 Is there a specific reason to prefer "depends on IPV6!=m || MLX5_CORE=m"? To me, the IPV6 || !IPV6 syntax seems a bit cleaner. Thanks! Jianbo
help Build support for IPsec cryptography-offload acceleration in the NIC.