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authorAlex Elder <elder@linaro.org>2021-06-11 22:05:22 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-11 23:37:49 +0300
commite4517d8a7f07b18f4f0e68940e2822a1b92b471f (patch)
tree8d2a66b2fed094d2f0bc31123afdd7479543863c /drivers
parent9e4e1dd4d972667f48a36d9e89c828d8f30136f3 (diff)
downloadlinux-e4517d8a7f07b18f4f0e68940e2822a1b92b471f.tar.xz
net: qualcomm: rmnet: use ip_is_fragment()
In rmnet_map_ipv4_dl_csum_trailer() use ip_is_fragment() to determine whether a socket buffer contains a packet fragment. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
index cecf72be5102..34bd1a98a101 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
@@ -50,8 +50,9 @@ rmnet_map_ipv4_dl_csum_trailer(struct sk_buff *skb,
__be16 addend;
ip4h = (struct iphdr *)(skb->data);
- if ((ntohs(ip4h->frag_off) & IP_MF) ||
- ((ntohs(ip4h->frag_off) & IP_OFFSET) > 0)) {
+
+ /* We don't support checksum offload on IPv4 fragments */
+ if (ip_is_fragment(ip4h)) {
priv->stats.csum_fragmented_pkt++;
return -EOPNOTSUPP;
}