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Date: Mon, 26 Feb 2018 14:28:19 -0800 From: Shannon Nelson <shannon.nelson@...cle.com> To: steffen.klassert@...unet.com Cc: netdev@...r.kernel.org Subject: [PATCH ipsec-next] esp: check the NETIF_F_HW_ESP_TX_CSUM bit before segmenting If I understand correctly, we should not be asking for a checksum offload on an ipsec packet if the netdev isn't advertising NETIF_F_HW_ESP_TX_CSUM. In that case, we should clear the NETIF_F_CSUM_MASK bits. Signed-off-by: Shannon Nelson <shannon.nelson@...cle.com> --- net/ipv4/esp4_offload.c | 2 ++ net/ipv6/esp6_offload.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c index da5635f..7cf755e 100644 --- a/net/ipv4/esp4_offload.c +++ b/net/ipv4/esp4_offload.c @@ -138,6 +138,8 @@ static struct sk_buff *esp4_gso_segment(struct sk_buff *skb, if (!(features & NETIF_F_HW_ESP) || !x->xso.offload_handle || (x->xso.dev != skb->dev)) esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK); + else if (!(features & NETIF_F_HW_ESP_TX_CSUM)) + esp_features = features & ~NETIF_F_CSUM_MASK; xo->flags |= XFRM_GSO_SEGMENT; diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c index 3fd1ec7..27f59b6 100644 --- a/net/ipv6/esp6_offload.c +++ b/net/ipv6/esp6_offload.c @@ -165,6 +165,8 @@ static struct sk_buff *esp6_gso_segment(struct sk_buff *skb, if (!(features & NETIF_F_HW_ESP) || !x->xso.offload_handle || (x->xso.dev != skb->dev)) esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK); + else if (!(features & NETIF_F_HW_ESP_TX_CSUM)) + esp_features = features & ~NETIF_F_CSUM_MASK; xo->flags |= XFRM_GSO_SEGMENT; -- 2.7.4
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